Story Archive

A list of all stories live on the site.

1,879 stories found, sorted by page views in the last 30 days. Total word count: 17,446,815.

• Muscle seduction by Azerreza  CockUp Cock HyCock HyCum PublicOrg XAbs HyMusc HyStr MuscUp Musc Libido Grad Voice Taller PSD SizeUp Virgin M/M  When Nick moves to a new city he hears rumours that it had once been partially destroyed by muscular titans. Not believing it at first, he decides to ignore them. But sometimes… rumours aren’t really rumours! And if it were true that there was a way to grow like that, could he use it to seduce the secret love of his life? Added Aug 2021 Updated Sep 2021 3 parts 35,026 words 7,537 views 4.8 stars (9 votes)
• Boosted by West  CockUp Cock HyCock HyCum XAbs HyMusc MuscUp Musc Taller PSD SizeUp App Inc Bro  Phil has a clumsy moment, and suddenly the school’s Augmented Reality room ends up being so much more. Added Aug 2021 Updated Sep 2021 3 parts 5,436 words 7,304 views 4.5 stars (15 votes)

• The training program by BRK  AlwHard CockUp Self HyCum Addict Mental 2Gay MuscUp Musc NoShirts Libido Handsomer Grad Tf Taller PSD SizeUp Hairier Dom Nonc Slave Alien  Recruited to take part in an intense and highly selective three-week LEO training program, Texas Ranger Dusty thinks he and his fellow trainees are in for a lot of hard work and conditioning. What he doesn’t know is what exactly these elite law-enforcement men are being trained for. Added Aug 2021 5 parts 8,850 words 5,160 views

• Justin (the bigger the better) by Giant Worshipper  CockUp Cock HyCock 2Gay HyStr MuscUp Musc Worship Giant SizeUp  A young man starts growing, and growing. He finds he likes it a lot. Added Nov 2009 15 parts 99,090 words 334,543 views 4.3 stars (72 votes)
• Nightmare at the Pump House Gym by UberPump  CockUp Balls Cock HyCock HyCum HyMusc Immob MuscUp Musc Hallow M M/F M/M  A bodybuilder encounters a strange man at the local gym who forces him to experience his deepest desires first-hand. The growth is intoxicating, but there’s a price to pay he doesn’t see coming. Added Oct 2020 Updated Sep 2021 5 parts 18,313 words 15,626 views 4.9 stars (10 votes)

• The bodyguards by Alakazam1988  CockUp Balls Cock NipC NipCum MuscUp Gut Musc BellyUp Grad PSD SizeUp Infl Inc Bro Twins  Two already huge and beautiful brothers apply for a job guarding a man who might be able to help them get even bigger. Added Apr 2021 Updated Aug 2021 9 parts 22,376 words 23,649 views 4.8 stars (35 votes)
• Curses and consequences by BRK  AlwHard CockUp Cock Self AlwCum HyCum XAbs XArms XLimb Addict Libido Grad Taller Retcon SocMed Supn  Reading this story is a bad idea, but you can’t resist now that you know it’s cursed. Added Sep 2021 1,456 words 2,750 views 4.8 stars (9 votes)
• Dylan by TreborNawoc  Cock XAbs XCock XArms XLeg XLimb 3Legs Rep Str BellyUp Bro Vore Absorb Cent Naga M/M M/M/M  Dylan and his extra-laden body are always hungry, so when his friend suggests an all-you-can-eat crawl he’s immediately on board. Added Aug 2021 Updated Sep 2021 5 parts 8,175 words 4,523 views 5.0 stars (9 votes)
• Resolutions by BRK  CockUp Balls Cock Self HyCum Mental HyMusc MuscUp Musc Libido SizeDn SizeUp TongueGr Retcon Sugg Nonc New Years M M/M M/M/M M/M/M/...  Ray intercepts a seemingly magical book of fill-in-the-blank New Year’s resolutions his boss, Danny, had ordered, and starts making plans for improving Danny’s too-boring sex life. Added Jan 2021 Updated Sep 2021 8 parts 44,479 words 16,366 views 5.0 stars (24 votes)
• Making the rules by EdIam  Mental Scent Inc Bro Dad Hum Nonc Slave HyPher Hypno Mind  Frank likes structure and rules in his home. Desmond likes corrupting families. Whatever could happen when the two meet? Added Sep 2021 2 parts 22,700 words 2,324 views
• Synthetic reality: Tourist trap by brazboy  Balls Cock HyCock CumMilking HyStr MusBr Worship Nude PSD Series M/M  Hans is fascinated by sizedivergent men, but unfortunately there aren’t many of them back where he lives—and so, he decides to spend his vacations in São Paulo, the Mecca of sizedivergent culture. After crossing the equator he sees many great wonders, and experiences some of them himself. Added Sep 2021 2 parts 8,159 words 2,250 views
• Keep your promises by NaughtyKitchenware  AlwHard CockUp Balls Cock 2Cock CockBody HyCock NipC Self AlwCum HyCum NipCum PublicOrg XBalls XCock XArms XLimb XPec Stack Wings HyMusc MusBr MuscUp Nude PointyEars Str Libido Tf Taller Giant PSD SizeUp 2Animal Tailcock Nonc Merg Fur Scaly Dragon Demons Supn Fly Alcohol  A rock band has risen to fame overnight, although not through conventional means. When the lead singer decides to not uphold their promise to the mysterious person responsible, things start to go out of control on the night of their big concert. Added Sep 2021 7,703 words 2,209 views 4.4 stars (5 votes)
• Starting over: A coming of age story by Mad Dog and Gurak  Musc PSD AgeDiff Seniors  An older, oversized but closeted man finds new meaning to his life through the admiration of a younger fella. Added Aug 2021 Updated Sep 2021 2 parts 17,883 words 2,110 views 4.8 stars (5 votes)
• The new student’s body by brazboy  Cock CockBody HyCock PSD  Alexandre is a normal 18-year-old high school senior in almost every way joining a new class in the middle of the school year. One way in which he definitely isn’t normal, though, is his body. Added Aug 2021 4 parts 6,832 words 4,196 views
• All good things by Anon Amon  CockUp Balls Cock HyCock CumInf HyCum NipCum 2Gay Immob MuscUp Musc Inc Bro Twins Infect  After the discovery of an ancient artifact, life is changed forever for a group of college students who have bigger things to worry about than getting ready to start classes. Added Feb 2017 Updated Oct 2020 104 parts 119,339 words 162,811 views 4.5 stars (128 votes)

• Above average by Ziel  CockUp Cock HyCock HyCum HyMusc MuscUp Musc AssUp Retcon  Alan starts out as just your average college boy. Then a strange, magical artifact comes into his life, and he starts becoming bigger… almost remembering the ways things were, when his muscles and cock weren’t, with each orgasm, more and more above average. As the effects spread, Alan knows he must understand what’s happing to him and his friends—and also that he must be the biggest, most muscular, most hypercocked stud of all. Added Apr 2013 Updated Dec 2018 28 parts 130,435 words 222,955 views 4.5 stars (89 votes)
• Synthetic reality by brazboy  Cockfuck Balls Cock HyCock CumMilking PublicOrg MusBr Musc Worship Nude PSD App Retcon Series  Augusto messed up in an outing with his friends, and was dumped in a random Uber to find his way back home. He opens up during his ride home and the Uber driver feels sympathetic enough to offer the lad a try-out of this new app he is developing. When Augusto’s life goes back to normal on Monday, he just wants to forget what happened on Friday completely, and leave it behind him as fast as possible—but the stuff he did while drunk catches up to him and in fact to the whole world. Added Aug 2021 Updated Sep 2021 9 parts 36,235 words 6,088 views 4.8 stars (6 votes)
• Chuck, the size thief by spacevlad  MuscUp Gut MuscDn Musc BellyUp Voice Giant PSD SizeDn SizeUp Fatter Infl Viol Nonc Absorb  Chuck, a middling-sized construction worker who wishes he were bigger, finds a way to grow huge. Added Jun 2017 Updated Dec 2017 16 parts 42,078 words 73,789 views 4.5 stars (23 votes)
• The cock bois by CockTFBoi  CockDn NoCock 2Cock HyCum Tf SizeDn SizeUp  When Colin gets a text from a blocked number he is drawn into an adventure to uncover a conspiracy and find his boyfriend. Added Mar 2021 Updated Sep 2021 6 parts 17,761 words 6,588 views 4.7 stars (7 votes)
• Jason’s big problem by Joven  CockUp Balls Cock HyCock HyCum MuscUp Musc Taller SizeUp Inc Bro  Teen athlete Jason unwittingly becomes part of a shady experiment to produce progressively larger cocks and balls that generate way too much cum. His playful and curious friends get drawn in, and when his cranky brother is roped in as well, having massive equipment becomes even more difficult. Added Oct 2013 Updated Nov 2017 49 parts 114,700 words 164,502 views 4.5 stars (74 votes)
• Business trip by BeefyDutch  CockUp Cock HyCum MuscUp BellyUp Taller SizeDn Fatter  Bill is a hardworking guy who travels. Before he leaves for his current trip, his coworker André slips some of his new protein supplement into his coffee with some big side effects. Added Aug 2021 7,889 words 4,493 views 4.6 stars (7 votes)
• Max’s wish by Bulge101  CockUp Cock MuscUp Musc SizeUp Infect  Scrawny Max uses his wish-power to make himself worthy of the extremely hot bully he has a crush on, but his friend Bobby deserves his help, too, and soon lots of changes start happening at school and at home. Added Aug 2011 Updated Nov 2011 11 parts 24,647 words 264,419 views 4.5 stars (71 votes)
• My roommate (complete) by LenZelig  CockUp Cock MuscUp Musc AgeDiff Virgin Inc Bro Dad Bi Het Dom Witch Pride Mind  Bill’s hot adventures with his irresistible sex-god of a roommate, Andy Wang, and the others drawn into his adventures, combined with the stories of Andy’s son and his friends. (This revised and updated compilation version includes both “My Roommate” and “My Roommate: The Next Generation.”) Added Jul 2002 Updated Jun 2021 29 parts 222,742 words 121,255 views 4.9 stars (77 votes)
• The dildo of the demigods by SuperWaffle  CockUp Cock HyCock NipC NipCum MuscUp Musc PSD SizeUp  Craving a size-giving artifact, the Dildo of the Demigods, a gym teacher steals it from one of his students, little realizing he’s just as susceptible to its insane growth-lust as the one he’d taken it from. Added Aug 2020 2 parts 18,865 words 8,749 views 4.9 stars (7 votes)
• The witch’s menagerie by NaughtyKitchenware  CockUp Balls Self HyCum PublicOrg Wings Nude Libido Tf SizeDn 2Animal Hairier AgeDiff Bi Het Witch Fly  Deep in the forest, as far away from civilization as possible, lives an old but youthful witch. A witch who needs some help from young mortals in gathering her special ingredients. The job description includes some… adaptations, but her latest recruit doesn’t seem to mind at all. Added Sep 2021 6,734 words 1,573 views
• From the files of the Magic Misuse Office by BRK  CockUp Cock XCock XHead XArms XLimb XTorso Rep 2Gay MuscUp Libido Tf SocMed Inc Twins Merg Witch M/M M/M/M  High-ranking magilegal investigator Liam O'Brien reports on a YouTube video in which twin college students have an illicitly magical effect on anyone watching. Added Sep 2017 Updated Sep 2021 6 parts 20,306 words 14,381 views 4.9 stars (34 votes)
• An unexpected inflation by UberPump  CockUp Pumping Cockfuck Balls Cock HyCock CumInf HyCum 2Gay Immob MuscUp Infl App Inc Bro Bi Nonc  A college athlete named Keith and his friends discover what it feels like to enlarge their cock and balls with the mysterious device Keith ordered off the dark web. When things go awry, however, their packages get huge. Keith and his friends go on a massive journey of cock growth, bloated balls, and near exploding junk as they inflate their man parts to their absolute limit. Added Apr 2020 Updated Apr 2021 32 parts 67,870 words 52,342 views 4.9 stars (65 votes)
• Spice by Mr. X and Mad Dog  CockUp Cock MuscUp Musc Worship Scent Grad Voice SizeUp Hairier AgeDiff Inc Dad Pride  In this epic story, the transformative powers of a certain substance are tested by a couple of very horny guys. Added Oct 2009 Updated Nov 2019 50 parts 221,027 words 184,814 views 4.1 stars (59 votes)
• Forced growth by hyperboi  CockUp Pumping Cock HyCock Mental 2Gay MuscUp Musc Nonc   Added Oct 2013 5 parts 6,397 words 99,636 views 4.3 stars (47 votes)
• The heart is a muscle by Mikeytron  HyMusc HyStr MuscUp Gut Musc Grad PSD  A muscle growth bildungsroman: shy small nerd meets his college roommate, who’s friendly, confident, and fucking huge. Growth occurs, both emotional and physical, over the course of their first year together. Added Jun 2021 Updated Jul 2021 6 parts 38,553 words 16,733 views 4.9 stars (52 votes)
• The Ixlutani by Lloyd Irving  CockUp CockDn CTheft Cock 2Gay MuscDn Musc Libido Tf Taller PSD SizeDn SizeUp Bi Het Supn  Kyle Anderson set out with his best friend Ben Miller for one last hurrah, revisiting the woods behind their childhood homes and the mysterious cave they discovered there, before Kyle’s impending nuptials with his longtime girlfriend, Olivia. What neither man knew was that after that day neither their bodies nor their relationship would ever be the same. Added Jun 2021 Updated Aug 2021 9 parts 54,489 words 10,807 views 4.9 stars (21 votes)
• Crotchmania by Alex Anders  Crotchhead Tf Mcock  A lucky porn star gets to partake of the newest fad. Added Aug 2021 1,672 words 1,319 views
• Summer research by spacevlad  CockUp Balls Cock HyCock Dumber Mental 2Gay HyMusc HyStr MuscUp Gut Musc Scent BellyUp Taller Giant PSD SizeUp Hairier Viol Slave 4th of Jul  Dave, an ambitious researcher at a well-known university, hires an eager-to-grow football player to test an experimental growth supplement. The experimental growth supplement works much better than anticipated and Grunt gains over 50 pounds in just a week, though with some troubling side-effects. Added Oct 2017 Updated Dec 2017 12 parts 28,541 words 34,084 views 4.8 stars (24 votes)
• Bull’s strength by muscl4life  AlwHard CockUp Balls Cock HyCock XAbs XCock MuscUp Musc Worship Tf Taller PSD SizeUp AgeDiff Beast Inc Dad Viol Infect Fly  On a quiet farm far from anywhere, an orphan named Joshua grows up so huge and strong that he’s bullied for being a freak. His aunt and uncle raise him with love and teach him to accept who he is, but Joshua yearns to be among men who don’t just accept his giant body, but love and admire his amazing size and power. Added Jul 2018 Updated Oct 2018 28 parts 88,398 words 60,772 views 4.8 stars (33 votes)
• Seth’s life changing adventure by Navy Alpha Pup  CockUp CockDn Balls Cock 2Gay MuscUp Musc Scent Voice Viol Dom Hum Slave Fluids Alcohol M/M  Seth has settled into his post-corps life, or thinks he has—until he meets a fellow ex-Marine who offers him everything he didn’t know he wanted. Added May 2019 Updated Sep 2021 9 parts 33,904 words 15,348 views 4.9 stars (14 votes)
• Finding Owen by BRK  Cock MuscUp Musc Taller PSD SizeUp Hairier Inc Bro Viol Wbear Were Supn Series  Owen Banks witnessed Max finding his destiny up on the mountain, then realized he was changing, too. Was he like Max, or was something else awakening within him? He decided he was going to find out. Added Aug 2019 Updated Sep 2021 12 parts 73,076 words 20,354 views 4.9 stars (16 votes)
• Cocked by Alex Anders  AlwHard Cock 2Cock Tf Series M/M  The town’s dark secret makes a new friend. Added Sep 2021 989 words 1,212 views 5.0 stars (5 votes)
• A.I. by Corwin  Cock CumMilking Addict HyMusc MuscUp Musc Worship Grad PSD SizeUp AI Viol Bond Andr M/M  Tim’s homemade A.I. software decides to help him get huge. Added Dec 2013 11 parts 30,556 words 46,582 views 4.8 stars (29 votes)
• The Body Builder by Greggrth  CockUp Balls Cock HyCock CumInf MuscUp Str SizeUp Rubber Super  Steve’s life is about to take a very strange turn when a supervillain called the Body Builder breaks into his lab and causes an accident. Will this be the origin story of a new hero’s rise to glory, or will it spell disaster for the heroes of the city when Super Dick causes all sorts of changes when he can’t control his not so little buddy… Added Dec 2020 Updated Jul 2021 7 parts 22,111 words 24,755 views 4.9 stars (30 votes)
• Reality Pack by Thorn  CockUp Cock MusBr MuscUp Musc AssUp BellyUp Grad Taller PSD Hairier App AgeDiff Virgin Inc Bro Dad  What happens when the program you’re working on for school has a downloadable mod? You investigate it of course! Added Nov 2020 Updated Feb 2021 15 parts 79,094 words 25,837 views 5.0 stars (24 votes)
• Moocows by Meddler Incs  CumMilking NipCum MuscUp Musc 2Animal Nonc Hypno Mind  Cody's world is turned upside down when he is faced with a twisted coach and his followers. Added Jan 2017 Updated Aug 2021 5 parts 8,648 words 24,197 views 4.4 stars (32 votes)
• Puberty is a bitch by Lover Boy 2  CockUp Cock HyCock MuscUp Grad SizeUp   Added Sep 2009 11 parts 14,585 words 139,282 views 4.2 stars (26 votes)
• Damien by bulkscribe  MuscUp BellyUp Taller Giant PSD SizeUp Fatter  My roommate Damien is focussed on getting as big as he possibly can… and I find myself more than willing to help him out with that. Added Aug 2020 Updated Dec 2020 5 parts 16,482 words 18,992 views 5.0 stars (18 votes)
• Becoming the ultimate man by musclestory  CockUp Cock HyCum MuscUp Musc Voice Giant SizeUp Hairier   Added Aug 2003 4,561 words 74,208 views 4.3 stars (18 votes)
• The swimming hole by JayPat  MuscUp Musc Viol  When Matt laments the sadly unmuscled state of his young body, all he hears is that he has to put in the work. Only, his swimming buddy Jimmy seems to be getting muscles all on his own, and he’s not even hitting the gym… Added Sep 2018 8 parts 42,632 words 19,971 views 4.9 stars (10 votes)
• Baby brother by Shawn D. Stewart  CockUp MuscUp Musc Taller Inc Bro  "Kev, did you see a glass here?” “Whoa, man, was that yours? Sorry… I was really thirsty…” “You drank it!?” Aaaaand off we go! Added Mar 2003 2,879 words 104,174 views 4.3 stars (33 votes)

• Alpha Male by Josef Howard  MuscUp Musc Super  A gay man wakes one morning inside the body of the (formerly) straight star-spangled super-hero AlphaMale. Everything is terrific until AlphaMale’s studly sidekick finds out his body is inhabited by an imposter. Added Jul 2002 5 parts 15,096 words 35,030 views 5.0 stars (7 votes)
• Transform: Muscle City by Also Known As  AlwHard CockUp Cock XCock 2Gay MuscUp Musc Worship Handsomer SizeUp Infect Series Series  Emotionally, the Muscle Club has become a community of transformed men who are farm beyond normal. Now is the time to make it a literal community all its own—a city of transformed muscle. Added Jan 2014 21 parts 119,996 words 38,663 views 3.3 stars (19 votes)
• Meteor shower by Tym Greene  Tf 2Animal Fatter Bi Het Fur M/F M/M M/M/F  A couple heads out to a costume party to celebrate a big meteor shower. Little do they know that the party’s host has other plans. Added Sep 2021 10,195 words 960 views
• A man of growing proportions by crazywolf82  CockUp Balls HyCock CumInf HyCum Str  Jacob’s cock starts to grow just as he meets a sweet guy named Kyle who seems very interested in him. Added Oct 2014 5 parts 9,164 words 45,250 views 4.6 stars (33 votes)
• Medicine show by Fafhrd and Longbow9  CockUp Cock HyCock Self Virgin Bi Het Lycra Infect Series   Added Feb 2012 Updated Feb 2014 174 parts 250,271 words 185,120 views 4.5 stars (20 votes)
• His brother drains his manhood by Ballmeat  CockUp CockDn MuscUp MuscDn Musc Inc Bro Nonc  A younger brother drains his big, strong, overconfident older brother of his cock, balls and muscle. Added Jan 2018 2,593 words 42,777 views 4.1 stars (28 votes)
• Strapped by Alex Anders  Str Tf 2Inan Infl Series  The town’s dark secret claims another victim. Added Sep 2021 828 words 925 views
• Mind and body by BRK  AlwHard CockUp Cock XCock 2Gay MuscUp Musc NoShirts Taller SizeUp App Sugg Inc Bro Hypno Mind  Jack discovers that his knack for hypnosis is actually much more powerful than it should be. Naturally, he uses this to get the upper hand with his sexy jock brother, but that turns out to be a lot more complicated than he’d thought. Added Jun 2012 Updated Jul 2017 16 parts 66,227 words 131,231 views 4.7 stars (92 votes)
• A real man by DoubleCream  CockDn Addict 2Gay Musc Worship Scent Mpreg PSD SizeDn HairDecr Virgin Cage Dom HyPher  A douchey gym bro wakes up in another world, in another body. Added Jan 2021 Updated Jul 2021 5 parts 21,958 words 14,113 views 4.8 stars (29 votes)
• Volleyed by Alex Anders  Str SizeDn 2Inan Infl Witch Series  A reporter discovers a town’s dark secret. Added Sep 2021 901 words 869 views
• Birthday surprise by The National Endowment Committee and UnknownGentrifier  Cock NipC NipCum MuscUp Musc  Steve’s handsome boyfriend Pete brings home a special birthday gift that happens to involve a bit of growth, and a few other things as well. Added Nov 2013 4 parts 13,423 words 27,690 views 4.6 stars (15 votes)
• Ben gets huge by spacevlad  HyCum MuscUp Gut Musc Scent Giant PSD SizeUp  Matt, a kicker on a college football team, befriends Ben, a burly, bearish, muscular offensive lineman with a desire to get bigger. Matt is … able to help him with that. Added Jun 2016 8 parts 17,849 words 50,599 views 4.3 stars (42 votes)
• Ad man by FanTCMan  CockUp Cock HyCock HyCum 2Gay HyMusc MuscUp Musc Hairier Nonc Infect  Powerful ad exec Tucker needs the help of one of his reps, an amateur bodybuilder named Larry, to break into the sports and fitness market. Larry takes the initiative and offers to help a potential client test their new supplement, and the results aren't what Tucker or Larry expect. Added Dec 2003 8,642 words 65,374 views 5.0 stars (30 votes)
• Make the fur fly by LordTronimator  AlwHard CockUp Balls Cock HyCock HyCum PublicOrg Nude Grad Tf 2Animal Retcon Nonc Fur  After a boy buys a custom-made fursuit based off his fursona and puts it on, his body begins to experience strange changes that only he seems to notice. Added Aug 2020 Updated Aug 2021 13 parts 18,964 words 15,096 views 4.9 stars (29 votes)
• The brothers by FanTCMan  AlwHard CockUp Cock Addict 2Gay MuscUp Musc Grad Hairier Inc Bro  Cory Callahan and his three sibs participate in a secret program, resulting in more muscles, body hair, cock size, and horniness. Added Mar 2003 8 parts 22,620 words 91,848 views 4.8 stars (87 votes)
• Red pills by Alakazam1988  CockUp Cock HyCock Addict MuscUp Gut Musc Taller PSD SizeUp Hairier  A struggling college student and part-time stripper is introduced to Red Pills, which are supposed to be the one dick-growth pills that actually work. He’s skeptical—at first. (Chapters 1-7 revised as of summer 2019.) Added Jan 2017 Updated Mar 2021 19 parts 53,990 words 39,539 views 4.7 stars (15 votes)
• The lucky accident by Alakazam1988  CockUp Balls Cock HyCock HyCum HyMusc MuscUp Musc Giant SizeUp Hairier  An accident at the skate park leads to a treatment for Luke’s balls that not only heals them but starts them growing, and pretty soon it’s not just his balls that are bigger. Added Sep 2019 7,269 words 23,830 views 4.8 stars (8 votes)
• Cursed cocks by CockTFBoi  CockUp CockDn CumInf HyCum PublicOrg FTM Addict 2Gay MuscUp Scent Libido Grad Hairier HairDecr Nonc HyPher M/M M/M/M/...  Marcus is having a horny night in the dorm when an inadvertent wish by his roommate sends him on a path to a new life. Added Aug 2020 8 parts 25,154 words 8,942 views
• Jock bros by John Perrot  CockUp Balls Cock HyCock HyCum HyMusc MuscUp Musc BellyUp Grad Taller PSD SizeUp Hairier  Derek convinces his friend Matt to get ‘jocked up’. They never imagined the growth that would follow… Added Feb 2021 4,818 words 11,757 views 4.6 stars (14 votes)
• Sean goes to prison by Joven  CockUp Balls Cock CumMilking 2Gay MuscUp SizeUp Nonc Bond  After an ill-advised flirtation with vandalism, Sean ends up at a very strange detention center where you’re either milking the other prisoners with the oversized balls, or… you’re one of the ones being milked. Added Aug 2017 Updated Nov 2017 17 parts 25,344 words 36,681 views 4.7 stars (32 votes)
• But I will do anything by WordShop  CockUp Balls HyCock Immob MuscUp Musc Hairier  Twenty-two-year-old Carlos is handsome, charming, and a great looker, but with self-doubts over a lithe lean body when he always wanted muscle. So he places an ad in a personals column looking for the trainer who could mold him. Be careful what you wish for… Added Sep 2017 Updated Dec 2017 3 parts 8,532 words 20,228 views 4.6 stars (14 votes)
• That’s a really huge cock, bro by Luke B.  CockUp Cock HyCock 2Gay MuscUp Musc Dialog  Just a down and dirty story about one jock stud finding out his muscle-bound jock buddy is hung like a mule—and growing. Added Nov 2016 3,726 words 35,950 views 4.8 stars (31 votes)
• Adam’s first growth spurt by MDS  Cock MuscUp Musc Giant SizeUp Inc Bro  Adam comes home from a day of being bullied at school to find he definitely won't have to worry about anything like that after today. Added Nov 2016 2,350 words 38,875 views 4.3 stars (14 votes)
• Sam and Bolt by Alakazam1988  CockUp Balls Cock HyCock NipC Self CumInf HyCum NipCum Taller SizeUp Hairier AgeDiff Inc Dad Infect  Sam’s father, Bolt, shares with his size-hungry son the secrets of becoming truly huge. Added Sep 2016 Updated Dec 2016 11 parts 48,242 words 62,786 views 3.7 stars (56 votes)
• Empire by LenZelig  CockUp Cock Self 2Gay MuscUp Musc Taller SizeUp AgeDiff Beast Virgin Inc Bro Dad Twins Bi Het Nonc Slave Share Alien Space Witch Tksg Mind Series  A massive consolidation of the entire “Bill’s Education” universe, incorporating the previously separately posted “The Surfer”, “The Rescue”, “Spring Break”, “Pickup Trouble”, and “School Days”, “Empire” is the wide-ranging tale of easy transformation and even easier sex across all boundaries—friends, family members, genders, even species—as a fortunate crop of humans stumble into a wider universe of size, muscle, double-digit-length cocks and much, much more and discover the true meaning of shared, radical, uninhibited pleasure. Added Apr 2019 Updated May 2021 40 parts 365,561 words 116,276 views 4.8 stars (38 votes)
• Second puberty by JayPat  CockUp Cock HyStr MuscUp Musc Libido SizeUp Bi Viol HyPher Series  Finding out you’re a product of genetic engineering and about to go through your second puberty is shocking enough, but the unforeseen repercussions with school, family, and friends are what really change everything. Added Sep 2012 15 parts 91,454 words 62,515 views 4.8 stars (29 votes)
• The beefening by Benjamin Skipper  CockUp Balls Cock MuscUp Gut Musc PSD SizeUp Hairier Dom Nonc  Spencer's roommates have been growing into huge hulking beasts, focused on working out, having sex… and now, turning Spence into one of them! Added Feb 2018 2,274 words 37,491 views 4.6 stars (30 votes)
• The expedition by BRK  AlwHard CockUp Cock XCock XLeg XLimb 3Legs HyStr MuscUp Musc NoShirts Libido PSD SizeDn SizeUp TongueGr AgeDiff M/M  An archaeologist and his research assistant, joined at the last minute by a jock desperate to boost his GPA, embark on a preliminary exploration of a mysterious Aegean island. Added Jul 2021 Updated Aug 2021 8 parts 14,373 words 4,473 views 4.9 stars (7 votes)
• The hulk pill by JayPat  Cock MuscUp Musc SizeUp Nano Infect  The only thing weirder than your buddy Boz offering you a “hulk pill” would be for it to actually work. Added Oct 2012 5 parts 29,485 words 72,942 views 4.6 stars (24 votes)
• An app for the ages by Seth Peterson  CockUp Cock Fem Dumber 2Gay MusBr MuscUp Musc Taller Hairier App Nonc  An app that can change people on a whim? A totally ego-maniacal straight boy with a strong distaste toward his nerdy, unappreciative roommate? Well, things can only get more exciting from here, can’t they? Added Dec 2018 3,147 words 21,179 views 4.9 stars (26 votes)
• The dudes by BRK  AlwHard CockUp Balls Cock Self HyCum PublicOrg XAbs 2Gay MuscUp Musc Libido Handsomer PSD SizeUp TongueGr Retcon Sugg Bro HyPher t/t t/t/t t/t/t...  The guys at school are really susceptible to suggestion—so much so that if you tell them something’s true, it turns out that it actually is true. Added Mar 2010 Updated Mar 2016 7 parts 15,936 words 102,117 views 4.6 stars (34 votes)
• Tank the bouncer by spacevlad  2Gay MuscUp Gut Musc Scent Giant PSD SizeUp Fatter Viol Nonc Rape  Bar owner Matt can only afford one bouncer for his bar, so he hires the biggest one he can find: Tank, an ex-college football player who is eager to grow even bigger. Matt has a way to make that happen, but after the first unexpectedly effective injection, the newly huge and strong Tank starts turning the tables on his boss. Added Jun 2016 Updated Aug 2016 18 parts 34,977 words 47,135 views 4.1 stars (29 votes)
• Keith the new guy by BRK  CockUp Cock XCock Btaur 4Legs XArms XLeg XLimb XPec XTongue Stack MuscUp Musc Handsomer Taller PSD SizeDn SizeUp Nonc Series  New hire Keith readies himself for his first-day meetings with his new boss, but the twink receptionist is kind of distracting—and why does his shirt feel tight all of a sudden? Added Aug 2021 3,163 words 2,760 views
• Seducers by Also Known As  CockUp Cock HyCock Prehen XCock MuscUp Musc Worship Handsomer Voice HyPher Fly Series  The sequel to Supermen and Transform. The community of impossibly attractive, physically gifted, sex-evolved men grows. Added Aug 2003 Updated Jan 2014 31 parts 108,068 words 40,742 views 3.7 stars (12 votes)
• Ascension by Ziel  CockUp Cock HyCock HyMusc MuscUp Musc  Zach awakens to find himself strapped to a table in a strange place with only a robotic voice for company. There’s a lot of questions on his mind, but none more important than what is this “ascension” the voice is talking about? Added Aug 2021 3,800 words 4,832 views 5.0 stars (13 votes)
• Bigger issues by muscl4life  AlwHard CockUp Cock HyCock XAbs 2Gay MuscUp Musc Worship SizeUp Series  Thanks to Kyle, Sean discovered his serum works better than he expected… And now his freaking muscular lover each time is more intoxicated with his newly found POWER, and can such difference of muscular capacity make the couple apart? Added Dec 2013 6 parts 46,984 words 117,963 views 3.8 stars (20 votes)
• Male scent by Frank Easky  CockUp Balls Cock HyCock HyCum HyMusc MuscUp Musc Scent Taller Giant SizeUp AgeDn Hairier Inc Bro Twins HyPher Infect  Apprentice magician Sean’s potion exceeds his expectations, causing his personal musk to spread muscle growth to those who smell it. Added Jul 2002 2 parts 13,564 words 47,828 views 4.0 stars (15 votes)
• Rude awakening by Double-U  MuscDn Musc PSD SizeUp Swap  Have you ever just woken up in someone else’s bed, with 200 pounds of more muscle, because you got a ‘new advisor’ from some weird company you never heard of? Yeah, didn’t think so. Here’s my crazy story. If you can believe it. Added Feb 2021 Updated Mar 2021 3,638 words 3,150 views
• Fun with math by Josef Howard  CockUp Balls Cock MuscUp Musc SizeDn SizeUp  Todd’s lusting admiration for his well-built math prof leads to some after-class lessons—and some surprisingly effective equations relating to size and muscle. Added Mar 2003 2,294 words 14,408 views 4.8 stars (11 votes)
• More than expected by LennoxBear  CockUp Balls Cock CumMilking NipCum MusBr MuscUp Musc Hairier Virgin Nonc Infect  Intent on preventing his beefy bod from getting soft, Joe is increasingly obsessed with his gym workouts. Then he meets a kindred spirit who helps him take things to a whole new level. Added Jul 2002 5 parts 20,375 words 81,787 views 4.2 stars (17 votes)
• Another big morning by Thatbadwriter  CockUp Balls Cock HyCock HyCum MuscUp Musc Giant SizeUp Inc Bro Dad Viol  It never fails. You’re sitting there on the living room floor with your cereal trying to watch some TV, when your dad comes down and decides Saturday morning is the perfect time to start growing and getting himself off. And then your horny brother comes home… Added Nov 2020 1,226 words 10,508 views
• Big changes by Ziel  CockUp Balls HyCock HyCum Inc Twins Xmas Eas Pride Hallow ValDay Images  Troy’s rapidly growing hypercock is getting kind of embarrassing, especially as it’s caught the attention of a pair of obsessive and very uninhibited twins. Added Dec 2013 Updated Jun 2021 11 parts 68,272 words 73,762 views 4.6 stars (21 votes)
• Coach Barker by Argenti  CockUp Cock HyCock HyCum 2Gay MuscUp Musc Taller Giant PSD SizeUp Infect  Coach Travis Barker has a special gift, and when he shares this gift with Adam, change begins to unfold around them. Added May 2019 Updated Jun 2019 9 parts 18,987 words 27,538 views 4.9 stars (22 votes)
• Abyssus Abbey by Pen Darke  Self XCock 2Gay MuscUp Musc BellyUp Tf SizeUp Scaly Demons Incub Ogres Witch Fant Horror Supn Series  Welcome to Abyssus Abbey… a place where monks study and summon demons in an attempt to prevent the Apocalypse. The demons are in the walls, listening to your words, your thoughts, your desires, and if you fall prey to any of the Twelve Temptations, you may find yourself changed in ways you may not have expected. The Abbey has always drawn and doomed those who seek power and knowledge, and if you’re lucky, you might find something else there: a change in your outlook, a surprising ability, a friend where no friend was expected, and even romance. But all pleasures come with a price, and sooner or later the devil will have his due. Come in. Join the damned. Added Feb 2020 Updated May 2020 17 parts 124,798 words 13,683 views 4.8 stars (38 votes)
• Be careful what you wish for by Tereshky  CockUp Balls Cock 2Gay Immob MuscUp Musc AgeDn Nonc  “I can give you anything you wish for. Just don’t blame me if you weren’t specific enough.” A mystical man shows up to people in despair to offer the desires of their hearts, but he has a tendency to give them more than they wanted. So if a man in a gray suit comes up to you offering to give you anything you want, be careful what you wish for. Added Feb 2020 Updated Jun 2021 9 parts 42,479 words 39,640 views 4.8 stars (15 votes)
• Basically a god by CurlyJin  CockUp Balls HyCock HyCum Taller Giant SizeUp Bi Het Lycra Space Super Fly X-Ray  What do you do when the kid you bullied in high school becomes a god? Added Jul 2016 Updated Jun 2019 9 parts 31,027 words 64,666 views 4.3 stars (22 votes)
• Muscle milk by Alakazam1988  CockUp Balls Cock HyCock NipC HyCum NipCum Immob MusBr MuscUp Taller PSD SizeUp  That new muscle drink in the gym vending machine does wonders for your pecs, though maybe not in the way you expect. Added Jun 2020 2,352 words 11,545 views 5.0 stars (8 votes)
• Changing Nick by BRK  AlwHard Cock XAbs XCock XHead XArms XLeg XLimb 3Legs XPec Rep Stack 2Gay MuscUp Musc SizeUp App Retcon Nonc Merg Witch M/M M/M/M M/M/M/...  Nick’s computer starts offering him choices between one kind of transformation and another. He soon learns he’s been drawn into a strange conspiracy, even as the changes start to spread to friends, strangers, and secret allies. Added May 2013 Updated Apr 2020 16 parts 59,149 words 93,527 views 4.6 stars (34 votes)
• Hard body by Also Known As  CockUp Balls Cock Prehen MuscUp Musc Worship Tf SizeUp Dom  Uncannily attractive and hunky teenager John is sent to the latest in a string of health professionals over his unusual condition: he’s always horny, and it affects his body in a very unusual and highly provocative manner. Added Oct 2016 Updated Oct 2019 14 parts 75,283 words 66,106 views 4.4 stars (83 votes)
• Alpha product series by Chet Boner  CockUp Balls HyCum NipCum MuscUp Musc AgeDiff Inc Bro Dad Images  19-year-old Trent accepts a free trial product series called “Alpha Product” in exchange for his feedback. He receives the first product very quickly, but doesn’t know how many people would be affected and grow as a result of this choice! Added May 2017 Updated May 2019 19 parts 23,227 words 65,097 views 4.3 stars (41 votes)
• Coach’s big surprise by MuscleMike  CockUp Balls Cock HyCock HyMusc MuscUp Musc Taller PSD SizeUp AgeUp Hairier AgeDiff  Josh is struggling to keep up with the rest of the wrestling team, and he’s afraid to get cut. Luckily, a former student of Coach Smith sends him something that’ll make them both become the men they’ve always dreamed of becoming. Added Feb 2020 2 parts 2,597 words 17,195 views 4.7 stars (15 votes)
• The mansion of Re-Petes by TwinReplica  Rep  Wyatt is finally visiting his online date Pete for the first time and is surprised to find he lives at a mansion, which holds multiple secrets inside… Added Aug 2021 2 parts 9,125 words 605 views 4.9 stars (8 votes)
• Supermen by Also Known As  CockUp HyCock XCock MuscUp Musc Worship Handsomer Virgin HyPher Fly Series  Todd agrees to be the first human subject for a muscle growth serum, little knowing how massive the effects would be, for himself and everyone else. Added Oct 2002 9 parts 76,817 words 74,015 views 4.1 stars (15 votes)
• Ben’s escapades by Kaelan  CockUp Balls Cock HyCock Self HyCum NipCum MuscUp Musc Grad Inc Bro  Ben undergoes medical treatment to make his genitals unusually huge, but is he ready for the dramatic changes that it’ll bring to the rest of his life? Added Feb 2018 Updated Jun 2018 9 parts 33,606 words 44,887 views 4.7 stars (33 votes)
• Hulkster and Hoppy by Also Known As  CockUp Cock MuscUp Scent Libido Handsomer Grad Taller PSD SizeUp Witch  Jeremy “Hoppy” Hopkins and Alexander “The Hulkster” Hogan were best friends in high school, but at the twenty-year reunion, the Hulkster discovers what Hoppy has been up to all those years in-between. Added Feb 2021 Updated Jul 2021 23 parts 118,666 words 20,114 views 4.9 stars (54 votes)
• Musclove, Texas by Max Mann  CockUp HyCock HyCum MuscUp Musc AgeDiff Virgin Inc Bro Dad Twins Bond  Moving to Musclove, Texas with his sons to take up a new teaching position, Rick Long is startled to find a town full of huge, hung, and horny men, all of them eager to have the newcomers join them (in more ways than one). Added Sep 2004 9 parts 26,085 words 58,035 views 4.7 stars (45 votes)
• The salt by RdyRoger  CockUp Cock MuscUp Musc Worship Libido Grad Taller SizeUp TongueGr Inc Bro Series  Trav gets his hands on some salts that cause all kinds of sexy growth and transformation. Using them on himself is great, but growing other people without their realizing it is even more fun. Added Jun 2010 9 parts 35,754 words 72,359 views 4.7 stars (18 votes)
• Public relations by Maximilian  CockUp Cock HyCock HyCum MuscUp Gut Musc Taller Giant PSD SizeDn SizeUp Hairier Viol Bond Witch Pride  When Jamie gets an out-of-the-blue invitation to meet up with a friend he’d fallen out of touch with, he doesn’t realize Adam has an ulterior motive—or that it involves an unwilling introduction to growth and magic. Added Jun 2015 Updated Apr 2019 18 parts 124,954 words 55,841 views 4.7 stars (38 votes)
• Modern rites by red_king  CockUp Cock HyCock CumInf HyCum MusBr MuscUp HyAnus AssUp Handsomer Tf PSD SizeUp Viol Bond Supn Immort  Matt’s life changes forever when he receives divine investiture from an old fertility god, fallen from the pantheon, in exchange for his devotion and cooperation in finding more followers. At first it sounded like work, but soon he’s having too much fun to care. Added Dec 2018 Updated Jun 2019 15 parts 45,417 words 24,039 views 4.6 stars (31 votes)
• The greed demon by Marquis de Rent  CockUp Cock HyCock MuscUp Musc PSD Demons Incub M/Inh M/M  A greed demon finds a human with immense greed and decide to have some fun with him. Added Oct 2017 2 parts 7,674 words 20,307 views 4.9 stars (15 votes)
• Among us by BRK  Cock Musc Amputation 2Animal Alien Were Mind t/t  Nathan Yates is an ordinary boy who’s just graduated from high school and whose biggest concern in life in trying to figure out why the hottest guy in school is making passes at him. That is, until he’s thrown into a story he knows intimately from his favorite cult graphic novels, and becomes embroiled in a conflict that reaches across worlds and universes. Added May 2017 Updated Apr 2018 15 parts 52,459 words 19,900 views 4.4 stars (17 votes)
• Lumberjacked by Krisiar  CockUp Cock HyCock Prehen Self NipCum XAbs Addict MuscUp Musc Handsomer Hairier  Trapped by a snowstorm at an underheated family cabin in northern Manitoba, Henry and Will stumble across a hidden sauna in the woods while out looking for wood. It turns out someone out there wants to help out guys like Henry and Will who could do with a little size improvement. Added Aug 2011 Updated Oct 2011 4 parts 12,081 words 83,607 views 4.6 stars (25 votes)
• Under control by Alakazam1988  CockUp Balls Cock MuscUp Musc AssUp Grad Taller SizeUp  Rylan is enthralled as his roommate, Peter, seems to be growing all over—though Peter denies anything is happening, and no one else seems to notice either. Added Apr 2020 Updated Aug 2020 5 parts 22,139 words 23,146 views 4.9 stars (25 votes)
• Year of the ox by Marceau Little Wolf  CockUp Cock HyCock NipCum XCock Addict MusBr MuscUp Musc BellyUp Tf Giant SizeUp 2Animal Nonc  Two brothers’ ailing dairy farm experiences a sudden change after they try an unconventional feeding method. Added Jul 2021 1,801 words 4,301 views 4.0 stars (6 votes)
• The Benefactor by Proteus  AlwHard CockUp Balls Cock Immob MuscUp Gut Musc Taller PSD SizeUp Nonc Supn  The Benefactor bestows favor on those he deems worthy, whether they like it or not. Added Jan 2020 Updated Apr 2021 14 parts 15,351 words 24,931 views 4.8 stars (17 votes)
• Enlargement by Boston Guy  CockUp Balls Cock HyCock 2Gay MuscUp Musc HyAnus Libido Grad Tf SizeUp Nano Nonc Infect  A medical engineer develops nanotechnology that could cure the world of multiple diseases. But his true motivation is not so noble. Added May 2013 Updated Jun 2013 5 parts 14,943 words 44,043 views 4.5 stars (22 votes)
• The gifted child by JayPat  Cock HyStr MuscUp Musc Slave  Young psychologist Justin Conroy poses as a valet to profile Evan, as genius prodigy whom his father things might be a sociopath. Evan has his own plans for Justin—and for some illegal genome experiments he’s uncovered. Added Oct 2012 7 parts 45,420 words 42,632 views 4.5 stars (23 votes)
• Johnny Pecs by BRK  CockUp Cock Musc Tf  Unexpectedly inheriting part of an island estate off the coast of Maine, Kent travels there to assess his options. On arriving in Glen Rush, he meets the young caretaker—a handsome stunner who’s acquired, with some justification, the nickname “Johnny Pecs”. Added Sep 2017 2 parts 7,175 words 11,865 views 4.7 stars (13 votes)
• Best birthday ever by TheSizeKing  CockUp Balls Cock HyCock Self HyCum Musc  Zac is already above average. But when his birthday comes around, he gets everything he wishes for and then some. Added Feb 2020 5 parts 14,872 words 18,709 views 5.0 stars (29 votes)
• Jeff the intern by BRK and Jockmorphr  CockUp Cock NipC NipCum MuscUp Musc Taller SizeUp Series M  Jeff is starting to feel like his body isn’t quite what it was a little while ago, and he’s at the office with coworkers around everywhere. And the changes are starting to pile up. Added Jul 2013 3,146 words 33,053 views 4.5 stars (22 votes)
• Muscle milk tit freaks by TitMorpher  NipCum MusBr MuscUp Musc Worship Images   Added Sep 2011 Updated Jun 2012 9 parts 27,090 words 95,919 views 3.8 stars (8 votes)
• Growing closer by Chance Micheals  CockUp Cock MuscUp Musc Inc Bro  Spying on Luke, the object of his lust, young Gareth discovers that Luke is even more special than he thought—and then Luke’s brother shows up. Added Jun 2015 1,018 words 14,653 views 4.1 stars (18 votes)
• The new simulation game by hyperboi  CockUp Cockfuck Cock HyCock 2Gay MuscUp Musc Inc Bro  On a weekend home from college, while he’s waiting for his brother to come home (and avoiding his hateful dad and sneering stepmom), muscle nerd Simon screws around with a new sim game he’d lucked into beta-testing—a game that turns out to be a lot more realistic than he’d expected. Added Mar 2016 5 parts 10,449 words 20,832 views 4.7 stars (16 votes)
• Cow-boy by JKL  CockUp NipCum MusBr MuscUp BellyUp Taller SizeUp 2Animal Hairier Infl  Where does milk come from if cows are not raised as livestock? You're about to become the source. Added Jan 2019 1,606 words 23,088 views 4.5 stars (13 votes)
• A fucking god by Jerkoffcentral  CockUp Balls Cock HyCum HyMusc MuscUp Musc Inc Bro  A teenager is both exasperated and incredibly turned on by how his body and everything about it seems to be getting freakier and freakier. Added Mar 2019 Updated Jun 2020 2 parts 5,278 words 27,117 views 4.5 stars (17 votes)
• Bear’s den by Pfefferooney  CockUp Cockfuck Balls Cock HyCock NipCum MuscUp Musc BellyUp SizeUp Hairier Infect  David is a small university student and he wants nothing more than to be, and be with, an enormous man. On a fateful day, he stumbles upon someone who can make his dream come true. Added Mar 2019 Updated May 2019 3 parts 9,022 words 23,070 views 4.9 stars (9 votes)
• Bending the straight boys by iciss  CockUp Cock PublicOrg 2Gay MuscUp Musc Handsomer Virgin Inc Bro Twins Nonc Infect  At first all those hot straight guys seemed like real jerks. And then they started getting hunkier, and hornier, and a lot more aware of each other. Added Jan 2008 2 parts 11,063 words 55,627 views 4.7 stars (36 votes)
• Muscle memory by LuvsMusl  MuscUp Musc Weed  After an infection damages his memory Cody starts getting bigger at the gym, pushing himself to get as big as he seems to remember he used to be. Only his memory is playing tricks on him, and Cody’s admiring muscle hunk roommate Mike, too. Added Oct 2014 3,116 words 11,421 views 4.4 stars (18 votes)
• Don’t talk about me! by jewelbee  PublicOrg 2Gay BellyUp Fatter Retcon Sugg Inc Dad Nonc  What if one day, everything someone said about you became true? Everything someone says to your face, whether lie, sarcasm, joke, hyperbole… would change you. 18 year old campus douche Nick learns this the hard way, faced with a curse after he led on the wrong girl. How will he get rid of the curse, and more importantly… just how much will he change in the meantime? Added Aug 2020 Updated Jul 2021 3 parts 4,348 words 8,332 views 4.9 stars (37 votes)
• The filling by UberPump  CockUp Pumping Cvore Balls HyCock HyCum Immob Hum Nonc Hallow  Jason has a knack for pumping his cock and balls up with air or water, reveling in the increased size before cumming it out of him. When he attends a Halloween costume party, his drunken behavior leads him to explore his personal limits at the pool. However, once he begins he can’t stop, only attracting the attention of the muscleheads around him. Added Oct 2020 4,045 words 7,102 views 4.9 stars (8 votes)
• Alpha by CharitysSongbird  CockUp Balls Cock HyCock Self MuscUp Musc Tf Taller SizeUp Dom Fur Were  Used to being smaller than his office mates, especially his crush Tavy, Ritzy is stunned when he suddenly starts getting bigger and furrier, even as the impulse to dominate seeps into his personality. Added Aug 2018 14,259 words 30,680 views 4.6 stars (10 votes)
• Transform by Also Known As  CockUp Cock Prehen XCock MuscUp Musc Worship Voice HyPher Infect Fly Series  Containing a secret is a hard thing to do. And the bigger the secret is, the harder it is to keep. No one was finding the truth of this more than those few men in charge at the Institute for Genetic Enhancement where the way has been found to transcend ordinary masculinity. The sequel to Supermen. Added Oct 2002 35 parts 131,918 words 44,820 views 5.0 stars (6 votes)
• Birthday surprise by Kjarri  CockUp Balls Cock 2Cock HyCock Str Absorb Merg  Noah hopes, with some help from a friend, to give his boyfriend a birthday surprise he’ll never forget. Added Jul 2021 3,108 words 3,972 views 5.0 stars (7 votes)
• The CVN link by BRK  CockUp Cock XAbs MuscUp Musc Taller SizeUp App Retcon M/M NS  Mike is applying for a new job. Everything’s going great, his potential new boss is a dreamboat, he’s perfect for the position. There’s just one hitch: they need his CVNs. His confusion turns to shock when he finds out from a friend just what the “N” stands for… Added Jun 2020 2 parts 9,839 words 6,883 views 4.8 stars (9 votes)
• Mutant by Marquis de Rent  CockUp Cock HyCock 2Gay Immob MuscUp Musc Giant SizeUp Super  Tom discovers that he is a mutant with the power to grow men that have sex with him. College jock Chris decides to take advantage of it. Added Oct 2016 4,202 words 40,560 views 5.0 stars (24 votes)
• Morphed male bulge freaks by TitMorpher  CockUp Musc PSD Images  The future world of muscle cock bodybuilders becomes competitive, but top-seed Biff is especially amazed to pose off against someone who’s as hugely cocked as him without having had any augmentation down there at all. Added Dec 2012 Updated Apr 2015 2 parts 4,889 words 55,129 views 3.8 stars (5 votes)
• What a little confidence can do by TheSizeKing  CockUp CockDn CTheft Balls Cock MuscUp MuscDn Taller SizeUp Dom  Cory and Ian have been friends for years. They ended up going to separate colleges, and met up four years later. Both guys had gone through a lot of changes, but Cory had an extra surprise in store… Added Feb 2020 4 parts 11,715 words 13,793 views 5.0 stars (18 votes)
• Dylan & Josh by Alakazam1988  CockUp Balls Cock HyCock CumInf HyCum Grad Xmas  Tired of settling or doing without, Josh is determined to find a boyfriend with a more than ample package. Dylan meets his requirements… and then some. Added Apr 2019 Updated Jul 2019 16 parts 18,351 words 19,421 views 4.5 stars (26 votes)
• The acolytes by Richard Jasper  CockUp Cock HyCock HyMusc HyStr MuscUp Musc Taller SizeUp Hairier  It all started with an arm-wrestling contest. Blond surfer god Mike Schnelling, 5’10”, 175 lbs., wanted to take me on. Which was fine but I had 50 lbs. on him, all muscle. We never could have imagined how it would all turn out! Added Aug 2020 7 parts 8,050 words 9,587 views 4.3 stars (9 votes)
• The Wizard of Hot by hyperboi  CockUp Balls Cock HyCock HyCum XCock XArms XLeg XLimb 3Legs Musc Det Giant PSD SizeUp Inc Bro Fur Witch Fant Supn  A young man’s difficult life on a struggling Kansas farm takes a sudden turn when a cyclone appears, taking him and his brother far from home to another place altogether. Added Apr 2021 Updated Jul 2021 10 parts 38,884 words 12,219 views 4.6 stars (14 votes)
• The application by SuperWaffle  MuscUp Musc Worship SizeUp Hairier App Fur  A powerful story in which an anthro fox named Bradley learns that a body-morphing app is a wondrous, life-changing thing for himself and for new friends as well—if it doesn’t fall into the wrong hands, that is. Added Apr 2015 8 parts 44,454 words 39,701 views 4.9 stars (21 votes)
• Growing boy by Massiveboy  MuscUp Musc   Added Jul 2002 699 words 28,844 views 2.8 stars (8 votes)
• Graham by Giant Worshipper and westone tiny  SizeUp   Added Nov 2009 Updated Dec 2010 10 parts 55,178 words 84,988 views 4.7 stars (21 votes)
• Mascotting by Tym Greene  Mental Musc Nude BellyUp Tf Twins Fur  Cedar, mascot for the Magic-Maker Mascots company, recruits a room full of guys to be the next generation of audience-enthusers. Added Aug 2021 5,297 words 1,427 views
• The new guy by Also Known As  AlwHard CockUp Cock HyCum Addict MuscUp Musc Handsomer Nonc Infect M/M M/M/M  A new employee causes pleasant though potentially cum-plicated problems. Added Jun 2019 Updated Sep 2019 6 parts 28,047 words 19,870 views 4.6 stars (22 votes)
• Fountain of life by NaughtyKitchenware  AlwHard CockUp Cock HyCock NipCum PublicOrg XFace XCock XArms XLimb XPec XTongue Stack MuscUp PointyEars Libido Tf Taller Giant SizeUp 2Animal Hairier TongueGr Fur Supn  During a hot summer morning, a jogger visits several unusual drinking fountains that will not only change him, but probably also the world. Added Jul 2021 3,730 words 3,990 views 4.6 stars (5 votes)
• Frat boys, bro!! by Seth Peterson  Balls Cock Dumber MuscUp Gut Musc BellyUp SizeUp Hairier Fatter  What happens when a handsome boy and his buddy finds some frat boy pills? Sick bulky results, BRO!! Added Jan 2018 2,556 words 30,673 views 3.9 stars (36 votes)
• Vice (Sometimes drugs offer more than a high) by Tereshky  CockUp Balls HyCock Self CumInf CumMilking HyCum Addict Immob MuscUp Musc BellyUp SizeUp Virgin Nonc  Jack was a drug kingpin of sorts. Like any potent drug, people craved it, they came to him, offered him their life’s treasures and he gave them their fix. In a world where usually only the strongest survive and only the smartest staid on top, he was doing quite well for himself and living an easy life. There were no rival drug lords because what he had to offer nobody else could give. His drug came from within. Added Jun 2018 Updated Nov 2019 5 parts 11,930 words 34,212 views 4.6 stars (29 votes)
• No strings attached by muscl4life  CockUp Cock HyCock CumInf MuscUp Musc SizeUp Inc Bro Twins Hypno  Donny walks in on his roommate, Sebastian, in the midst of his efforts to make himself bigger. Added May 2014 3 parts 39,280 words 41,440 views 4.5 stars (20 votes)
• Abyssus Abbey 2 by Pen Darke  Cock HyCock Prehen Musc Fur Demons Incub Witch Horror Supn Series  To protect himself from the devils who want to attack and change him, Tuco must enter the Abyss—little knowing what he will find there. Added Feb 2021 Updated Jun 2021 8 parts 55,713 words 8,812 views 5.0 stars (22 votes)
• Karma pills by Musiker  CockUp CockDn NoCock Balls Cock HyCum Dumber Mental 2Gay MuscUp Musc HyAnus Grad Taller PSD SizeUp Dom Hum Nonc Slave Fluids Fur Mind  Steve has been bullying the other members of Matt's Gym for ten years. When Matt gives Steve a new kind of muscle-enhancing pill, he conveniently forgets to mention some significant side effects. Added Jun 2019 Updated Jul 2019 5 parts 24,186 words 20,022 views 3.7 stars (16 votes)
• Naked by Also Known As  CockUp Cock HyCum MuscUp Musc Nude PSD SizeUp  Dave’s new dorm roommate, Lance, is naked. Always, constantly, deliciously naked. He’s also, huge, hung, and constantly horny. But what really changes everything is the unexpected effect that Dave has on Lance—and what Lance does to Dave. Added Jun 2016 10 parts 38,843 words 36,705 views 4.5 stars (29 votes)
• Growth school by Writ Bro  CockUp Cock MusBr MuscUp Musc Dom Bond Slave Lycra  Kit’s rebellion against his rich, inattentive father ends him up in a school for delinquents. Only, it’s not at all what Kit expects. Added Jun 2018 Updated May 2019 12 parts 55,825 words 47,320 views 4.6 stars (18 votes)
• Little bro by Ziel  CockUp Cock HyCock MuscUp Musc Giant SizeUp Inc Bro  Hunky big bro Liam has always teased his puny kid brother Connell. But after his accident, Connell got some experimental treatments that are guaranteed to change who calls who the “little bro” from now on. Added Apr 2017 5,382 words 34,073 views 4.7 stars (15 votes)
• Dick note by Thorn  CockUp Cock  Waking up from an odd dream, Forest awakens to find something is in his backpack. Added Jan 2021 Updated Jun 2021 6 parts 31,185 words 15,771 views 5.0 stars (45 votes)
• So much cum by Delinqual  HyCum  Cory has a condition that causes him to produce extremely abnormal amounts of semen. It’s not always fun, but it has led to some very memorable moments. Added May 2012 2,165 words 124,467 views 4.3 stars (16 votes)
• Bottom mega-alfa by Jerkoffcentral  CockUp Cock MuscUp Musc SizeUp Hairier Dom Nonc Were  Lit prof Jonas has been lusting after the exceptionally muscular students on his prep school survival outing, but even more after the massive gym teacher Noah, who’s so alpha he has trouble controlling just how massive he is—especially when he’s aroused by an admirer’s obsessive lust. Added Nov 2014 Updated Dec 2017 8 parts 21,520 words 62,006 views 4.7 stars (51 votes)
• Stories to tell in the dark by Thorn  CockUp Balls Cock MuscUp Gut AssUp BellyUp Voice Taller SizeUp Fatter Infl  Sean discovers a book that is filled with some surprising stories. Added Apr 2021 2 parts 9,685 words 8,006 views 4.8 stars (25 votes)
• Spice up your life by Musclesaber  CockUp Cock MuscUp AssUp BellyUp Taller 4th of Jul Pandem  Roommates Sam and Collin try to return to a life of normalcy after the pandemic. Trying to have a get together with friends, Sam buys a new spice pack at the store that has some surprises in store for the pair. Added Feb 2021 Updated Aug 2021 8 parts 22,174 words 17,582 views 5.0 stars (21 votes)
• The chronicles of Besar Otot by OneLuckyGuy89  CockUp Cock HyCock XCock MFSwap 2Gay MuscUp Musc Tf Taller PSD SizeUp AgeUp Hairier AgeDiff Inc Bro Dad Nonc HyPher  On a distant unknown island near Indonesia called Besar Otot, Kenny Masters returns home a new man and intends to change his family as well. Added Jan 2020 Updated May 2021 8 parts 25,601 words 11,201 views
• Mimbo drops by Absman420  CockUp Cock Dumber 2Gay MuscUp Musc Tf Nonc Rape Mind  Tom receives a secret serum that turns men into horny, dumb, huge-cocked muscle hunks. He decides to try it out on his bicycling buddy Sam, and discovers it’s extremely effective—especially in multiple doses. Added Jul 2011 2 parts 13,794 words 43,546 views 4.7 stars (30 votes)
• My son, the superstud by Max Mann  CockUp Cock 2Gay MuscUp Musc AgeDiff Inc Dad  Thom is shocked to hear that his son Rusty has enrolled in a muscle-growth transformation experiment—and it’s already too late to stop him. Added Oct 2003 3,842 words 104,421 views 3.8 stars (30 votes)
• Hypno muscle: jock dreams by Douglas Benjamin  Dumber HyMusc MuscUp MuscDn Musc Scent Tf Taller SizeDn SizeUp 2Inan Sugg Orcs Hypno Mind  Toby and Liam have picked up a hypnotic audio tape that promises to grow their muscles. When they fall asleep to the hypnotic induction, they have a dream that seems all too real: Suddenly, they have to power to transform each other into big-muscled meatheads, flexing and posing for each other and talking like dumb jocks. Even more transformation is possible, but there is a catch. Added Jul 2019 4,333 words 11,817 views
• One hot summer by BRK  AlwHard CockUp Cock Self Mental MuscUp Musc NoShirts Grad Taller Hairier Inc Bro Twins Nonc Pride Weed  Brandon and Eddie enjoy working for their pot-loving boss, Mike, at the pizza place near campus and are bummed they can’t stick around for the summer, too. Mike offers them a possible solution, though he doesn’t let them in on all his plans for the coming summer. Added Jun 2019 Updated Jun 2021 36 parts 76,165 words 34,306 views 4.9 stars (28 votes)
• Ever growing by Alakazam1988  CockUp Balls Cock HyCock Self Bi Het  An account of what it’s really like to have a dick that keeps growing and growing and growing, sometimes fast, sometimes slow, but always more than you expect. Added Sep 2016 4,842 words 28,241 views 4.1 stars (14 votes)
• The locker room thief by CockTFBoi  CockUp CockDn CTheft MuscUp MuscDn Taller SizeDn SizeUp  Riley, a personal trainer, heads into the gym to get ready for his first client of the day. Things take a strange turn when his client, Ethan, suggests a new exercise regimen. Added Jan 2021 3,234 words 7,324 views 4.9 stars (7 votes)
• Aaron by Josh Dugan  Cock Self HyCum  No, it's not a microphone. Added Mar 2003 708 words 20,533 views 3.8 stars (6 votes)
• Jack and the muscle goddess by Richard Jasper  2Straight MuscUp Musc Het  When the CIA’s biggest, builtest, hungest gay male operative is seduced by the dominatrix dictator of North Korea, kinky things (and gigantic growth) occur. Added May 2020 5 parts 4,539 words 3,179 views 2.4 stars (5 votes)
• Domination by dunnyboy  CockUp Cock Herm MuscUp Musc Scent SizeUp Hairier Dom  Jay's already growing submission to Chris escalates dramatically as Chris reveals he's been taking injections that will turn him into the ultimate muscle fantasy. But Chris won't be the only one affected. Added Feb 2017 17,095 words 36,265 views 4.6 stars (29 votes)
• What a dear deer boy by Thatbadwriter  CockUp Balls Cock HyCock HyCum AssUp Giant PSD SizeUp 2Animal Virgin Inc Bro HyPher Fur  Eric’s undersized brother Jayden finally hits his growth spurt—then keeps hitting it. Added Feb 2021 Updated Mar 2021 5 parts 12,430 words 12,421 views 5.0 stars (11 votes)
• The legend of Ben by TreborNawoc  CockUp Cock HyCock Prehen Self XCock XHead XArms XLimb Rep Part Rearr Str Infl Mcock  When Ben found out the things he could do with his body, he became very popular with all of his randy dormmates. Added Jul 2021 2 parts 2,867 words 4,144 views 4.9 stars (19 votes)
• Gaining roommates by Alakazam1988  CockUp Cock HyCock MuscUp Taller SizeUp Fatter Vore  Ben’s enormous gut seems like it can’t get any bigger. Does that sound like a challenge to you? Added May 2020 5,341 words 9,760 views 4.2 stars (9 votes)
• Field agent by BRK  CockUp Cock HyCock HyCum XCock Btaur 4Legs XArms XLeg XLimb Rep MuscUp Nude SizeUp Inc Twins Infect Cent  Special agents Adkins and Barber interview a rancher in relation to their current case. There’s something odd about the handsome Latino, though—starting with the fact that he won’t get down off his horse. Added Apr 2020 Updated Nov 2020 2 parts 5,236 words 6,269 views 4.8 stars (15 votes)
• Anthony by Chronologious  CockUp MuscUp Taller Giant PSD SizeUp Viol  Jack is having vivid dreams about his friend. Pure imagination or a sign of what’s to come? Added Mar 2021 Updated Apr 2021 6 parts 16,429 words 12,131 views 4.9 stars (14 votes)
• Basso profundo by BRK  CockUp Cock 2Gay MuscUp Musc Voice Hairier Sugg Mind  Andrew hates how puberty had been a lot kinder to his studly, alpha male jock roommates. Even his voice is higher. All that changes with a belated puberty upgrade—especially the part about his voice. Added Jan 2021 2,030 words 7,574 views 4.6 stars (11 votes)
• Massive by Alex Rif  SizeUp Suit AgeDiff Inc Dad Lycra Hallow Super Images  James finds the superhero costume his stepson had ordered from a strange website for Halloween, and decides to try it on. Added Feb 2016 2 parts 2,851 words 26,852 views 3.3 stars (13 votes)
• Reece’s morph by Seth Peterson  MuscUp Musc BellyUp PSD SizeUp Hairier Fatter Vore Absorb  The power of absorption is a nightmare for Reece...until it produces some very big results. Added Mar 2016 Updated Dec 2020 3 parts 13,638 words 29,630 views 4.4 stars (9 votes)
• Skin tight by Dream Big  CockUp Balls Cock HyCock Self MuscUp Musc Grad Taller PSD SizeUp HyTongue AI Nano HyPher  Mark has big brains, but a big body? Not so much. So he decides to bend his gray matter toward a high-tech A.I.-assisted body suit that will help him achieve the kind of body he dreams about. Added Apr 2019 Updated Oct 2020 23 parts 37,778 words 37,703 views 4.5 stars (37 votes)
• Cool bracelet, bro by BRK  AlwHard CockUp Cock HyCock Self XCock XHead XArms XLeg XLimb 3Legs XPec Stack MuscUp Musc Retcon Sugg Inc Bro t/t t/t/t  Shortly after acquiring a mysterious leather bracelet, Pete and his kid brother Quentin have a conversation that leads rapidly toward just how hung Pete is, and how horny that makes his brother. Added Feb 2014 Updated Mar 2018 5 parts 16,745 words 58,157 views 4.6 stars (45 votes)
• Boyfriend destroys my cock by Steve McMoon  CockUp CockDn Dom  Sometimes having a big cock isn’t nearly as important as your hot dominant boyfriend taking your size away from you. Added Feb 2020 1,630 words 9,556 views 4.2 stars (21 votes)
• Supplement by BRK  Cock HyCum XCock  Those vitamin pills in your roommate’s cabinet aren’t necessarily what you think they are. Added Jun 2003 1,946 words 10,149 views 4.2 stars (12 votes)
• Spare by Double-U  MuscUp Musc Suit  Dan, a muscular football jock, attempts to recruit his friend, Tom, for a football tournament after his team ends up short a man. When Tom declines, pleading a lack of skill and stamina, Dan offers Tom something that he ultimately can’t refuse. Added Sep 2017 4,474 words 11,439 views 4.9 stars (13 votes)
• Mariposa honeymoon: A six-pack story by Cris Kane  CockUp CockDn Cock Dumber Mental MuscUp Musc AssUp BellyUp Libido SizeDn SizeUp AgeDn Race Hairier Witch Series  Their flamboyant best-man Pierce gives strait-laced newlyweds Derek and Charles a mysterious six-pack to liven up their Cancun honeymoon. Added Dec 2018 Updated Feb 2019 19 parts 105,833 words 13,991 views 4.5 stars (11 votes)
• Winter potluck by brazboy  CockDn Cockfuck Balls Cock HyCock NipC Prehen NipCum Immob MusBr MuscUp Musc Worship PSD Tailcock Pandem  Six friends who haven’t seen each other since the onset of the pandemic finally gather for a big thematic potluck! Everyone brings something to share, but some items are fresher than others… Added Jul 2021 3 parts 8,299 words 4,225 views
• The need to obey by Musiker  CockDn Balls Cock XArms XLimb MFSwap Mental 2Gay Musc BellyUp Taller Giant PSD SizeDn SizeUp Hairier Sugg Bi Het Cage Dom Slave Immort  An enormously large, muscular man has only one thing he wants out of life: to be a good boy for his master. He is searching for a new master to take him in when he finds someone who is willing to give him a try-out, and who is not turned off by his enormous balls and knee-length caged cock. Added May 2019 Updated Nov 2019 8 parts 44,462 words 19,951 views 4.8 stars (16 votes)
• No limits by Corwin  CockUp Cock HyMusc HyStr MuscUp MuscDn Musc Worship  There’s a secret serum that makes you super-muscled and super-strong, but what you do with that—that’s all you. Added Mar 2020 7 parts 21,446 words 13,720 views
• Teen growth by Chamelion123  MuscUp Musc   Added Jul 2002 7,404 words 97,622 views 3.7 stars (23 votes)
• Derek’s rebirth by muscl4life  CockUp Balls Cock HyCock Self HyCum NipCum 2Gay MuscUp Musc Giant PSD SizeUp AgeDiff  An elixir from the dawn of time is turning Derek into the ultimate muscle daddy, which he demonstrates by wearing out three young admirers. Taking on a personal trainer as his acolyte, Derek prepares himself for an even more impressive Phase Two of his transformation. Added Nov 2018 3 parts 11,737 words 23,824 views 4.6 stars (14 votes)
• Danny’s dick by Zot57  CockUp Cock HyCock   Added Feb 2010 10 parts 7,661 words 78,163 views 4.2 stars (24 votes)
• Acclimating by Dream Big  CockUp Cock Musc PointyEars Tf PSD Demons Witch Fant Shift  Dealing with finding yourself unwillingly summoned into a fantasy-themed world as a fearsome, horned, and hung demon is, it turns out, mostly a matter of adjusting yourself to your new situation. Added Mar 2020 Updated May 2021 39 parts 38,773 words 17,161 views 5.0 stars (21 votes)
• Discogrowphy by Ziel  CockUp Balls HyCock Nude SizeUp  In his first Patreon bonus mini-fic, Ziel indulges in this month’s theme: “Hyper Macro Twink.” As the author explains, “Lots of clothes-bursty growy goodness ensues as well as lots of hot ’n’ sloppy macro sizeplay. I just couldn’t pass up the chance to add some exhibitionism in there because, really, if you’re a hot ’n’ hung titan, who wouldn’t want to strut their stuff?” Added Jun 2014 5,711 words 15,339 views 4.3 stars (17 votes)
• Altered by Dream Big  CockUp Cock MuscUp Musc Taller SizeUp 2Animal Hairier Nonc Bond HyPher  Chris wakes up in a strange laboratory, only to learn he’s one of a number of subjects in a mysterious program that involves alterations to the male human body. At least the guy they have looking after him seems sympathetic… and very, very sexy. Added Jan 2020 Updated Dec 2020 6 parts 10,616 words 18,353 views 4.7 stars (12 votes)
• The house always wins by Meddler Incs  2Gay MuscUp Musc AgeUp Retcon  The things you find in a circus… Added Aug 2021 2,073 words 2,352 views
• Alpha Luke and the wrestling team by Eric Aaldersen  CockUp Balls Cock HyCum HyStr MuscUp Musc Grad HyPher Supn Series  Luke finds another beta mate on his wrestling team and his sexual energy infects the whole team during a special match! Added Aug 2020 6,920 words 6,494 views 5.0 stars (10 votes)
• Big is better by XH4M  Cock NipC MuscUp Musc Virgin Demons Witch Hypno  Pete and Sam experience epic growth, unexpected adventures, and sweet romance. Added Oct 2003 32 parts 111,493 words 66,154 views 4.1 stars (13 votes)
• Becoming a muscle god by Corwin  CockUp Cock MuscUp Musc Giant SizeUp Dom  Mike discovers what it's like to become a muscle god, and how awesome it is to turn the tables on the coach who’d thought he’d get to dominate the newly-grown Muscle Mike. Added Apr 2018 3,083 words 23,040 views 4.6 stars (9 votes)
• His cock gets huge by Jack Hardwood  CockUp Balls Cock HyCock HyCum MuscUp Libido  Male model Pietro washes up on a remote island inhabited by a society of men where everyone wants their cock to be as big and fat as humanly possible. Pietro just wants to go home, but his almost constant boner is getting bigger and bigger, and he doesn’t know how much longer he’ll be able to walk. Added Dec 2017 Updated Apr 2018 8 parts 14,650 words 41,065 views 4.8 stars (48 votes)
• Transform: New Blood by Also Known As  AlwHard CockUp Cock Self XCock MuscUp Musc Worship Scent Libido Voice SizeUp Virgin Infect Fly Series  The formula Carlos developed, Transform, has made him and his friends into veritable gods. Soon their numbers will be growing, thanks in part to a video featuring a guy known only as Self-Suck Sam. Added Jan 2014 47 parts 188,423 words 34,010 views
• Beta Logan and his big brother by Eric Aaldersen  CockUp Balls Cock HyCum HyStr MuscUp Musc Grad Inc Bro HyPher Supn Series  Logan has difficulty controlling himself as his older brother Brian becomes a bigger and bigger stud. Added Jun 2020 6,499 words 11,272 views 5.0 stars (13 votes)
• Adam’s milk by Adam Zander  CockUp HyCock NipCum MusBr SizeUp Future  Adam’s dreams of growing massive pec-tits like the wrestlers he admires come true—in spades. Added May 2015 2 parts 2,600 words 42,141 views 3.4 stars (18 votes)
• The Zeke chronicles by Sean Reid Scott  CockUp Cock MuscUp Musc Worship Taller AgeDiff Inc Dad Dom  Zeke, an 18 year-old gorgeous stud, was already big before some very special visitors seem to have given him a special ability to grow and grow, bigger and bigger, stronger and stronger. Added Jul 2013 Updated May 2017 7 parts 27,675 words 38,445 views 4.3 stars (16 votes)
• True muscle god by mf81  CockUp Balls Cock MuscUp Musc Viol  An encounter with a strange artifact from the ancient Aegean leads Richard to a divine encounter. Added Mar 2006 Updated Feb 2011 3 parts 7,686 words 74,439 views 4.8 stars (35 votes)
• Geno-type by Ziel  CockUp Cockfuck Cock HyCock Infect  While on a camping trip, Tyler makes a half-assed wish on a shooting star. Not only does he get his wish, but it begins to affect those around him as well. Maybe he should have been more specific? An ongoing saga of hyper growth and the weird social situations it results in. Added Dec 2012 Updated Feb 2016 34 parts 144,288 words 93,427 views 4.3 stars (25 votes)
• If only by BRK  Cock XCock Rep Tf Sugg  Steve hasn’t noticed yet how the world shifts a little every time he says "if only”. That’s okay. Added Mar 2006 2,591 words 15,884 views 4.4 stars (14 votes)
• My roommate’s soft spot by brazboy  Cock XCock Mcock Inc Bro  Guilherme’s tall, handsome, and muscular roommate seems like the perfect guy, but he has a big secret that not everyone can really accept—not even himself. Added Jul 2021 5 parts 14,413 words 3,457 views 4.8 stars (6 votes)
• The journal by Braun1  CockUp Balls Cock MuscUp Musc SizeUp Hairier Infect  An ordinary college guy finds himself changing after a steamy encounter with a hunk named Brad, and decides to start documenting everything that’s happening to him. Added Feb 2003 11 parts 30,474 words 20,794 views 4.9 stars (12 votes)
• Bulking by Proteus  MuscUp Gut Musc AssUp Grad Hairier  Sometimes, when people have a crush on their hunky roommate, they act on it by secretly trying to make the guy progressively hotter. Added Mar 2013 6 parts 7,143 words 40,284 views 4.8 stars (14 votes)
• Adam’s fury by Chronologious  MuscUp Musc Giant SizeUp Viol  Adam is sick and tired of being harassed and bullied at school and reaches his breaking point. Nobody is ever going to mess with him again. Added Apr 2021 2 parts 3,929 words 4,882 views
• Addiction by Hatman  CockUp Cock CumInf HyCum HyAnus Str  “… I gotta have more! I need more! Give… me… MORE!” pleads our young scientist. Added May 2010 1,916 words 23,792 views 3.9 stars (7 votes)
• Daddy’s little boy by TonnyGiant  Cock Gut Musc PSD AgeDiff Inc Dad Dom  Jimmie returns home from college for the summer to rediscover just how drawn he is to his massive, muscle bear stepfather. Added Sep 2018 Updated May 2019 2 parts 4,961 words 20,773 views 4.8 stars (9 votes)
• Unexpected growth spurt by rusalko  CockUp Cock MuscUp Musc PSD SizeUp  Moving in with the cute guy you've been aching to push your big dick into is exciting and boner-making enough... but then I experienced a very unexpected growth spurt that put us both into sex heaven. Added Dec 2012 Updated Feb 2017 6 parts 10,737 words 50,345 views 5.0 stars (9 votes)
• Costumemania: The sticky super suits by Redouan  CockUp 2Gay HyStr MuscUp Worship Taller SizeUp Dom Lycra Super M/M M/M/M  Robin and Sven are two nerdy friends working at an office. They both love superheroes but are too invested in their office life to take the hobby further. But something is about to change this as they receive two costumes to wear for an upcoming event. Added Aug 2020 Updated Apr 2021 11 parts 32,532 words 10,148 views
• The six pack by Cris Kane  CockUp CockDn Cock MFSwap Fem Mental 2Gay MuscUp Musc AssUp BellyUp Libido Handsomer Grad Tf Taller SizeDn SizeUp AgeUp AgeDn Race Hairier Fatter Viol Series  Returning from a Mexican vacation, a gay couple bring back a mysterious drink for their friends to try, bringing on some changes for the group of friends that require a great deal of getting used to. Added Sep 2018 9 parts 38,564 words 18,261 views 4.9 stars (10 votes)
• The body spray by Coalth  Cock MuscUp Musc Nude Scent Grad 2Animal Hairier Fur  Bodybuilder Kevin, needing a little armpit spray, spots a strange brand of deodorant in the gym vending machine and decides to give it a try. Added Mar 2013 6 parts 5,880 words 31,832 views 5.0 stars (8 votes)
• Himbo pussy serum by BaraBootyEater  CockUp Balls Cock MuscUp AssUp HairDecr  Josh and Jason are a pair of horny bio-engineering students who’ve created a serum that can cause some muscly changes to those they give it to. Added May 2021 1,126 words 6,646 views 3.3 stars (9 votes)
• Bottoms up by Ziel  CockDn Cock Libido Hum Nonc Alcohol  Chess, a haute and hung twink, is too proud and too big to bottom which is a shame given how nice his ass is! But things change when he visits a trendy new club for his birthday. Added Jul 2021 7,092 words 2,854 views
• The good freak by Also Known As  AlwHard CockUp Balls Cock HyCum MuscUp Musc Grad Taller SizeUp Infect  Kevin Peters is a cheerful, very fit young man who happens to be getting bigger and hotter in every way, much to the bemusement (and secret arousal) of his doctor. Soon the guys around him are growing too, and Dr. Donaldson discovers even he’s not immune... Added Nov 2002 33 parts 33,508 words 38,270 views 4.9 stars (19 votes)
• Muscle daddy by bulgeCanon and  Cock HyCock Self MuscUp Gut Musc  Meeting the freakishly huge roommate, Mark, is crazy enough—and that’s before finding out that Mark’s dad is even bigger. Added Nov 2018 Updated Nov 2019 2 parts 5,769 words 19,523 views 3.8 stars (13 votes)
• Titanification by JayPat  Cock HyStr MuscUp Musc Giant SizeUp Viol   Added Oct 2012 8 parts 29,739 words 29,374 views 4.4 stars (10 votes)
• Just a little bigger by Dream Big  CockUp Cock Self MuscUp Musc Libido BreastUp Grad Tf Taller Bi Het  Drew has two problems: he’s got a crush on his two best friends, Vic and Sarah, and he’s self-conscious about being short and skinny. He’s not prepared for the changes that develop in both departments on their fateful post-graduation trip to New York City. Added Dec 2019 Updated Mar 2020 15 parts 31,368 words 21,264 views 4.6 stars (14 votes)
• Biking buddies by Eric Aaldersen  Cock Musc  Simon and Adam enjoy racing their bikes through the countryside together, Adam getting extra enjoyment from watching Simon’s ass as he rides ahead of him on the trail. This time, Adam gets to do more than just look. Added Dec 2005 5 parts 8,312 words 14,460 views 5.0 stars (9 votes)
• Mega pecs maker dosing accident by TitMorpher  MusBr MuscUp Musc Images Series   Added Apr 2013 1,505 words 36,721 views
• Titan video by Anonymous  CockUp Balls Cock HyCock HyMusc Immob MuscUp Musc Taller Giant   Added Jul 2002 2 parts 7,735 words 20,526 views 4.9 stars (7 votes)
• New normal by brazboy  CockUp Cockfuck Cock HyCock HyCum NipCum MusBr MuscUp Taller PSD SizeUp Infect Pandem  Pedro is a Brazilian university student who returned to live with his roommates after one and a half years living with his family during the pandemics, but everything is not the same. His roommates Carlos and Henrique will not tell him what exactly has changed, wanting him to see it with his own two eyes. Added Jun 2021 5,662 words 5,882 views 4.8 stars (12 votes)
• X-mass by Ziel  CockUp Balls Cock HyCock HyCum MuscUp Musc Taller Giant SizeUp Xmas Images  With illustrations by Seraphiel. Clive thinks he’s in for a long, lonely Christmas break. It seems everyone else has left town to spend the holidays with their family, and he’s stuck hanging out with his roommate who he barely even knows! But a mysterious gift shows up and changes everything. This is one gift that definitely keeps giving! Added Dec 2019 8,466 words 16,562 views 4.6 stars (12 votes)
• Daddy’s boy by Seth Peterson  CockUp Cock NipCum Dumber 2Gay MusBr MuscUp Musc Hairier Dom Hum  What happens when a cocky, overly narcissistic businessman oversteps courtesy? Why, muscle-growing, mind-altering, submission-inducing karma, of course! Added Jun 2018 2,534 words 23,212 views 4.8 stars (14 votes)
• Bull’s gene by Opin  HyCum HyStr MuscUp Gut Musc Worship Taller PSD SizeUp  Dean goes on a date with Henry, a huge professor, whose strength exceeds every expectations… Added Aug 2020 Updated Apr 2021 5 parts 9,018 words 17,199 views 4.6 stars (15 votes)
• Love/shift by BRK  MuscUp Musc NoShirts Scent Grad Tf SizeUp Hairier AgeDiff Inc Dad Wbear Supn Series M/M  Maxfield has very mixed feelings about leaving the city and all his tech behind to spend the summer after graduation halfway up a mountain in the family’s backwoods cabin—just him, his dad, and a whole lot of secrets. Added Dec 2017 Updated Apr 2019 11 parts 68,079 words 34,031 views 4.8 stars (30 votes)
• Hollyville by Tereshky  CockUp Balls Cock Prehen HyCum XAbs XArms XLimb XPec Rep Stack Wings MuscUp Musc Tf SizeUp Tent Horror  The sleepy town of Hollyville, Alabama finds that strange things are happening to some of its people. It’s one man’s job to find out, but is he prepared for the mystery, suspense, and life-altering changes to come? Are you? Added Nov 2019 Updated Feb 2020 9 parts 43,978 words 15,333 views 4.9 stars (18 votes)
• A blessing in disguise by Jo Psmythe  CockUp Cock HyCock XDig XAbs XHead XArms XLimb XPec Stack Str PSD SizeDn SizeUp Sugg Vore  Colin, an over-stressed college student, meets the man of his dreams in Chris. But Chris has a secret that might drive them apart—or bring them even closer together. Added Sep 2019 5,422 words 8,285 views 5.0 stars (6 votes)
• John the wizard by RdyRoger  CockUp Balls Cock HyCum MuscUp Musc Handsomer Grad Taller SizeUp Hairier Sugg Witch  John is a wizard and likes helping out his friends—usually in ways that involve none-too-subtle increases in height, equipment size, and muscle. Added Dec 2017 Updated Sep 2019 7 parts 24,468 words 29,804 views 4.5 stars (20 votes)
• Body game: Encounter 813 by BRK  AlwHard CockUp Balls Cock HyCock HyCum XDig XAbs XCock XArms XLimb XPec XTongue Rep Stack MuscUp Str FootUp Taller PSD SizeUp Hairier HyTongue TongueGr Mcock Inc Bro Series M/M M/M/M  Reggie isn’t sure why the team-building get-together for the web design firm he’s working for is being held at an abandoned mall; he just knows he can’t get his sexy boss out of his mind. Added May 2016 Updated Jun 2021 9 parts 49,133 words 32,613 views 4.9 stars (22 votes)
• Magic cock by Anonymous  CockUp Cock HyCock   Added Apr 1997 3 parts 6,064 words 101,750 views 4.3 stars (10 votes)
• Cu Raigo by NaughtyKitchenware  AlwHard CockUp Cockfuck Balls HyCock Self HyCum NipCum MuscUp Tf SizeUp Fur Images  Raigo, an adrenaline-addicted porn star, finds himself in a snow storm. Luckily, a mysterious and large stranger saves him, which leads to a lot of changes for both of them. Added May 2021 6,103 words 4,992 views 4.2 stars (11 votes)
• Tank by Corwin  Cock MuscUp MuscDn Musc Bi  A star alpha male has to take back his gym from a bully, except the only way is to grow himself bigger than the already monstrous interloper. Added May 2014 8 parts 26,822 words 22,794 views 4.6 stars (5 votes)
• My brother’s boyfriend by Richard Jasper  Balls 2Gay HyMusc HyStr MuscUp Musc Taller SizeUp Inc Bro HyPher  Hunky, straight Marine Kyle is gobsmacked to find out that his bigger, hotter baby brother has an even bigger, hotter boyfriend! Added Feb 2020 5 parts 8,843 words 11,919 views 4.1 stars (8 votes)
• The awakening by Johnny M  HyCum NipCum MusBr Musc AgeDiff Inc Bro Dad  Danny’s secret muscle-breast fantasy kink begins bleeding into the real world. Added Jul 2012 10 parts 24,690 words 51,840 views 4.6 stars (15 votes)
• Boy in a bag by Absman420  CockUp Cock Dumber Mental MuscUp Musc AgeDn Nonc  Maybe there’s such a thing as too much hormone therapy… Added Oct 2020 7,534 words 8,383 views 4.7 stars (9 votes)
• Changeday by Alakazam1988  CockUp Cock MuscUp Musc BellyUp Taller SizeUp Hairier Fatter  Now that all of the changes to your body take place all at once on the same day every year, Andrew and his two college buddies are doing everything they can to make their Changedays as dramatic as possible. Added May 2020 5,212 words 6,224 views 4.8 stars (6 votes)
• Anything to grow by Big Bull Trainer  Dumber Immob MuscUp Musc Tf SizeUp  There are some with an unquenchable desire to not only grow, but to grow to unnaturally large proportions, and will go to any lengths to do it. This is a story of just such a person. Added Aug 2016 7,815 words 35,457 views 4.5 stars (13 votes)
• Grow and get huge by Massiveboy  MuscUp Musc Taller Hairier   Added Jul 2002 1,112 words 39,013 views 4.2 stars (13 votes)
• To wish for cock by CockTFBoi  CockUp CockDn CTheft NoCock Cock 2Gay Tf Cage Dom Witch Pandem  A chance encounter while hiking starts a series of events that will change Calvin and the world around him forever. Added Dec 2020 Updated Feb 2021 5 parts 13,965 words 11,860 views 4.7 stars (7 votes)
• Mass X by Max Mann  CockUp Cock 2Gay MuscUp Musc Libido Handsomer Hairier AgeDiff Inc Dad Xmas New Years  Five short stories of men getting bigger and sexier, through the use of “Mass X”. Added Feb 2005 5 parts 19,019 words 36,978 views 4.6 stars (14 votes)
• Worship by Unknown  Cock Musc  Working out late at night, a well-built guy watches a musclegod work out, then gets invited to take a much closer look. Added Jul 2014 4,883 words 15,812 views 4.6 stars (16 votes)
• Changing fortunes by MuscleAndBulge  CockUp Balls Cock HyCock HyCum HyMusc HyStr Immob MuscUp Musc Worship Lycra  Mark is seeking help with a relationship that has lost its spark. He is pointed in the direction of a fortune teller who has some extra skills that help Mark and Erik rekindle their love life. Added Jun 2021 Updated Jul 2021 2 parts 6,137 words 7,826 views 4.9 stars (14 votes)
• Bet you can’t have just one by Ziel  CockUp Balls Cock HyCock MuscUp Musc Giant SizeUp  Vincent was given pretty clear instructions with the new growth supplement his pal invented: “Only take one pill.” Added May 2017 5,605 words 26,873 views 4.8 stars (8 votes)
• ChristMASS by Musclesaber  CockUp Balls Cock HyCock CumInf HyCum MuscUp BellyUp Taller Giant Infl Xmas  Four men are transported to the North Pole to compete for the title of “The New Santa Claus”. Little do they know what magic can really do to them as one by one, they are each eliminated. Added Dec 2020 4 parts 9,454 words 5,733 views
• Morphogenic steroids by RdyRoger  CockUp Balls Cock Self MuscUp Musc Libido Grad Taller PSD SizeUp Hairier Infect  Rod’s dad is working on a new technology that makes small things bigger and big things huge, with incredible implications for food supplies and beyond—only it only lasts for five hours. Rod figures being bigger for five hours… that would be pretty awesome. Added Oct 2019 4 parts 15,297 words 15,741 views 4.4 stars (11 votes)
• Andy finds Cockr gives and takes away by Clearlyhere  CockUp CockDn Cock MusBr MuscUp Musc App Dom Series  Andy has mixed feelings about his experience with the Cockr App. He discusses it with his friend Bill. Bill comes up with a plan that is mutually beneficial. Added Oct 2017 Updated Jun 2019 5 parts 14,003 words 27,090 views 4.5 stars (30 votes)
• Heavy quarantine by Portowulf  CockUp HyCum MuscUp BellyUp Libido Fatter Infl Pandem  Boyfriends Vincent and Coy ride out the quarantine together, for extended time. Added Apr 2020 2,778 words 5,696 views 4.7 stars (9 votes)
• Afternoon swim by Viva Wales  CockUp Cock HyCock FootUp Taller SizeUp   Added May 2002 1,544 words 34,665 views 3.7 stars (7 votes)
• Alpha fitness by Genetonic  CockUp Cock HyCock MuscUp Musc Taller SizeUp Hum  High school nerd Jeff keeps getting bullied by muscle jock Travis… until he has a lucky encounter with the new ‘Alpha’ brand clothing line. Added Mar 2021 2,712 words 7,335 views 4.3 stars (8 votes)
• Contamination by RdyRoger  CockUp Balls Cock MuscUp Musc Grad Taller SizeUp Hairier Infect  After his dick came in contact with an experimental substance, high schooler Vincent starts slowly getting bigger… first in his crotch and then other places, too. Thomas, a tall, handsome jock, likes teasing him about it at every opportunity. Added Jul 2019 6,135 words 15,523 views 4.4 stars (8 votes)
• The Champion by Mikeytron  HyMusc MuscUp Musc  A twist on the “be careful what you wish for” formula, regarding the history of an implausibly huge Mr. Olympia champion. Added May 2021 2 parts 10,261 words 6,605 views 4.8 stars (17 votes)
• The formula by hyperboi  CockUp Cock HyCock Self MuscUp Musc AgeDiff Inc Bro Dad Twins  Mike begs his genius friend Jeff to try coming up with a cock growth formula. Jeff assumes Mike doesn’t want to look too small when he goes out for the swim team, but the secret truth is, Mike’s ambitions aren’t limited to his own junk. Added Jan 2021 Updated Feb 2021 4 parts 14,631 words 17,180 views 4.9 stars (29 votes)
• Brotherly love by Seth Peterson  CockUp Balls Cock HyCock MuscUp Gut Musc Taller SizeUp Inc Bro Merg  Two brothers get the best weekend they can imagine through the use of some very special, very wonderful powers. Rest assured, the results are BIG. Added Dec 2015 7,666 words 37,213 views 4.8 stars (16 votes)
• What’s yours is mine by Ziel  CockUp CockDn MuscDn SizeDn SizeUp Hum Super Series  When it comes to the superpower lottery, there a some abilities that are pretty much guaranteed to turn you into a supervillain. Added Mar 2020 6,698 words 11,749 views 4.5 stars (8 votes)
• Brotherly love by TheSizeKing  CockUp Cock HyCock MuscUp Musc Taller SizeUp Inc Bro  Reece is a 20-year-old guy who has everything going for him in life: good looks, good brains, good personality, even a well-above average endowment between his legs. His younger brother, Michael, is exactly the opposite. Michael is about to turn 18, and could use a little boost before he goes out into the adult world. Added Apr 2020 5 parts 7,816 words 10,514 views 4.8 stars (12 votes)
• Alex in Wonderland by Anarchy A  CockUp Balls Cock HyCock HyCum HyMusc MuscUp Musc SizeDn SizeUp  Alex follows mysterious man into a forest, and quickly finds himself in a strange new world, deep below the ground. Added Jan 2016 Updated Apr 2017 3 parts 6,184 words 38,580 views 4.4 stars (40 votes)
• Bigger issues: Ultimate growth by muscl4life  CockUp Cock HyCock MuscUp Musc Worship Libido SizeUp Infect Series   Added Nov 2013 Updated Dec 2013 6 parts 31,808 words 36,498 views 4.4 stars (7 votes)
• The box by BRK  CockUp XDig XCock 4Legs XArms XLeg XLimb Rep Str Virgin Inc Bro Witch Series M/M M/M/M M/M/M/...  Steve gets a box of clothes from his mysterious and beautiful brother, Peter, and it turns out the clothes have an amazing effect on his already unusual body. Added Dec 2002 Updated Sep 2019 8 parts 29,657 words 22,360 views 5.0 stars (12 votes)
• David devolving by FanTCMan  CockUp Balls Cock Dumber 2Gay MuscUp Musc Nonc   Added Sep 2003 2 parts 9,538 words 36,867 views 4.8 stars (14 votes)
• Anomalous Materials Research Facility 3‑DL by Mad Dog and Gurak  CockUp Cock HyCock XCock XHead XLimb Mpreg Tf SizeUp Fur Cent Demons Orcs  Working with exotic materials on a distant research space station is all in a day’s work for Carter, a theoretical physicist and the sole mundane human in a crew of sexy (and sex-loving) creatures straight out of a very dirty fantasy novel. But when you work with stuff that scoffs at the laws of physics, normality can’t remain unbent forever. Added Sep 2019 Updated Mar 2020 6 parts 32,475 words 15,931 views 4.9 stars (23 votes)
• Laundry day by Aphon  CockUp Balls Cock HyCock MuscUp Musc SizeUp Hairier Hum Nonc  A scientist on the verge of a cock growth breakthrough is a little careless and his formula ends up on the jockstrap of a hunky personal trainer, what could go wrong? Added May 2017 Updated Dec 2019 12 parts 9,685 words 34,015 views 4.3 stars (19 votes)
• Charles’s monster by Locky  CockUp Cock HyCock SizeUp  Jason saw Charles' monster in high school. Three years later, there's even more to see. Added Aug 2006 1,748 words 73,394 views 4.1 stars (32 votes)
• The feeding by HouseForMonsters  MuscUp Gut Musc BellyUp Giant PSD SizeUp Viol  A sudden visit from a fellow fetish gainer you've met online leads to massive growth and the destruction of a city. Added Aug 2019 2,354 words 10,804 views
• A legal contract for services to be rendered by BRK  CockUp Cock HyCock HyCum PublicOrg MuscUp Nude Libido Taller SizeUp  The responsibilities of the undersigned assistant shall begin with, but not be limited to, the carrying around of the employer’s gigantic cock. Added Aug 2021 1,337 words 2,780 views 4.5 stars (6 votes)
• Bait and tackle by Ziel  CockUp CockDn MuscUp MuscDn SizeDn SizeUp Hum Super Series  Sapp continues his size-draining activities. This time against the speed and power of a hero called Linebacker. Added Apr 2020 5,442 words 8,149 views
• Breaking big by Ziel  CockUp Cockfuck Balls HyCock HyCum Immob  Tim had the bright idea to craft a special serum that would boost the size of his painfully average dick in order to show off and hopefully woo one or both of his crushes, and it worked! Oh boy, did it work, but things take a turn for the extreme when Tim’s growth reaches extremes he’d never dreamed of, and then there’s the issue of Tim’s two crushes... Added Jan 2016 7,492 words 19,632 views 4.7 stars (16 votes)
• The queen by Dylan Utah  CockUp Balls Cock HyCock HyCum Immob MuscUp Musc Nonc Symb  As a big muscle alpha on campus, Peter had been used to admiration and envy. What he didn’t expect was to be captured and used for his growing muscles and cock. Added Aug 2020 880 words 6,174 views 4.2 stars (5 votes)
• Sk8r dreams by Reaver  CockUp Cock Rep NoShirts Libido Tf Voice AgeDn Race App Retcon Nonc Infect Mind Series  The Maker is an app that gives you the ability to remake the world around you. That means a better house, a hotter body—and it definitely means turning a few guys in your life into happy, hunky skater bois. Added Oct 2003 19 parts 58,830 words 33,591 views 4.2 stars (18 votes)
• The streamer by MuscleNexus  Dumber Mental MuscUp FootUp Voice SocMed  Daniel psyches himself up for his first Twitch livestream. Maybe he should try doing a low-risk midnight dry run with that obscure game he downloaded… Added Jul 2021 1,434 words 3,661 views
• Tying the knot by DracumSum  CockUp CumInf MuscUp Tf Hairier Fur Were  Mike got lost in the woods, during the night of a full moon. He heard a twig snap behind him. And now he’s got a new boyfriend. Added Jan 2021 Updated May 2021 4 parts 19,702 words 9,785 views 4.9 stars (19 votes)
• Oh man by BRK  CockUp Cock Self XCock XArms XLimb Rep MuscUp Musc App Retcon  A simple website called your-body-like-that dot com lets you imagine how you’d look with a whole new body. Only it doesn’t stop at imagination. Added Jul 2010 Updated Nov 2017 5 parts 13,270 words 71,171 views 4.6 stars (22 votes)
• Beefcake by Zero  CockUp Cock MuscUp Musc AssUp Handsomer Taller SizeUp  They say you are what you eat—especially true for magical foodstuffs with growth-inducing powers—and wimpy freshman Bradley is about to take a bite. Added Feb 2021 1,591 words 7,581 views 4.6 stars (7 votes)
• BodyReverence by BRK  Cock XCock MuscUp Musc App M/M M/M/M/...  Kevin finds out about an app that allows its subscribers to touch its handsome, muscular models with a new kind of virtual technology. His buddies are psyched to get in on the touching… but Kevin, who’s been getting more and more admiration for his looks and the body he’s sculpted for himself, realizes he wants to be appreciated with more than just yearning gazes and salacious comments. He wants to be touched. Added Sep 2017 4,670 words 7,214 views 4.7 stars (15 votes)
• About that boy by Richard Jasper  Cock Musc Dialog  Coach Harper gets an earful from Mrs. Johnson about her son Billy's really big classmate, Roger Fernbeck. Added Jan 2020 Updated Feb 2020 655 words 8,367 views 3.1 stars (7 votes)
• The life changing discovery by MuscleAndBulge  CockUp Cock HyCock MuscUp Musc SizeUp Genie  Stew is a short and scrawny teenager. But after he discovers a magical artifact, his life becomes bigger and better. Added Jul 2019 Updated Jun 2021 2 parts 6,218 words 11,065 views 4.8 stars (12 votes)
• Side effects 2000 by Braun1 and Z  AlwHard CockUp Cock HyCock Self MuscUp Musc Worship SizeUp Infect  Mike and Jan begin an odyssey of muscle, growth, transformation, sex, and love. Added Jul 2002 31 parts 126,731 words 32,111 views 4.6 stars (5 votes)
• Visiting home by Wicked  Cock MuscUp Musc SizeUp AgeDiff Inc Dad Infect  Asher spent his entire first semester working out and gaining some serious muscle, but when he returns home for winter break, he doesn’t realize that he’ll be the one amazed by how much someone can change. Added Jan 2016 Updated May 2016 2 parts 6,753 words 31,861 views 4.8 stars (21 votes)
• The accidental wizard by nolanspice  CockUp Cock Rep MuscUp Musc Tf Voice PSD SizeUp AgeDn Race  Ken and Jay’s excursion into alchemy yields astounding results. Added Jan 2006 2 parts 2,926 words 19,467 views
• The Alpha by Ziel  Cock MuscUp Musc Tf 2Animal Hairier Nonc Fur  Harrison’s chance encounter with the creature that has been stalking the campus changes him in ways he’d never thought possible. Added Dec 2017 4,118 words 18,003 views
• Thoros by Ziel and Solumsol  CockUp Cock HyCock HyCum MuscUp Musc BellyUp Tent Images  In the mystic ruins of a secret, forbidden library, Thoros uncovers an exciting find—a small jade box, sealed with a binding rune Thoros knows he can unlock. The rewards inside, however, are not what he expects, and the tendrils unleashed will not stop until Thoros has been given more pleasure than he can handle. Added Jan 2018 4,756 words 23,950 views 4.8 stars (13 votes)
• No reason by Alakazam1988  Cock NipC NipCum MusBr MuscUp Gut Musc SizeUp Xmas  At the gym, Pascal notices that not only is are his pecs getting huge, but his nips are showing under his hoodie more than they should. Added Jan 2017 3,736 words 27,673 views 4.8 stars (15 votes)
• Mega-tit wrestler freaks by TitMorpher  MusBr MuscUp Musc Images Series  There was no practical way to reverse the impact of the Mega Pecs Maker overdose on the wrestling team, or to hide its outcome. Eventually the team was asked to leave the wrestling league. Even though the boys could not compete against other teams at the present time, their devoted coaches carried on with regular practices and business as usual. Added May 2013 3,005 words 31,589 views
• Transform: Teen Truman by Also Known As  Cock Self MuscUp Musc Voice SizeUp Infect Series Series   Added Jan 2014 7,238 words 18,039 views
• Not just imagination by DarkDjin  CockUp Cock MuscUp Musc Sugg AgeDiff Inc Dad  Jampson’s overactive imagination starts to grow his cop dad and his friends...and somehow not only does it become real, but the men are pretty into it. Added Jun 2014 Updated Jul 2014 2 parts 10,894 words 33,902 views 4.6 stars (34 votes)
• Alex and the giant by JB  Giant PSD SizeDn SizeUp  Alex finds himself irresistibly attracted to a man who can change his size at will. Added Jan 2019 4,284 words 12,600 views 4.5 stars (10 votes)
• Centurion of light by Ravine Mountain  CockUp Cock HyCock NipC HyCum NipCum XAbs MuscUp Musc Voice SizeUp Inc Twins Demons Ancient  A great new story in which a centurion, Marcus, and five of his best men are transformed by the god Mars—and charged with a mission. Added May 2014 Updated Jan 2019 12 parts 38,226 words 49,961 views 4.9 stars (47 votes)
• Tit hype by Writ Bro  CockUp Cock MusBr MuscUp  Between jobs? How about £5000 in three weeks to take part in medical trials? Who knows, you might even like the side effects. Added Sep 2020 Updated Jul 2021 5 parts 19,822 words 11,497 views
• Damian and the three muscleteens by hyperboi  CockUp Cock HyCock 2Gay MuscUp Musc AgeDiff Inc Bro Dad Twins Infect   Added Dec 2012 5 parts 8,169 words 49,094 views 4.3 stars (26 votes)
• Best body modification ever by Oneleg Smith  CockUp Cock HyAnus Tf Rubber  Mike meets an unconventional surgeon who specializes in improving your body and making sex better in unexpected ways. Added Mar 2019 1,994 words 12,026 views 4.2 stars (5 votes)
• Brother-in-law by Jock  Cock Musc  Ace, a Marine, meets and becomes enamored of his sister’s fiancé, Josh. A rare (for Metabods) tale with no alterations. Added May 2006 12,744 words 132,909 views 4.7 stars (93 votes)
• Rubber suit surprise! by Peter Johns  CockUp Rubber  A yearning for a bit more rubber in his life is whispered in the ear of someone who can do something about it. Added Jan 2018 1,935 words 17,678 views 5.0 stars (5 votes)
• Simply winning by NCGazza  CockUp Balls Cock HyCock MuscUp Musc Taller Giant PSD SizeUp Hairier Viol  Justin gets his hand on some herbal tea that hopefully will make him into the man he wants to be… if he can hold onto it long enough. Added Mar 2019 3 parts 8,705 words 13,990 views 3.7 stars (9 votes)
• That balloon by RdyRoger  CockUp Balls Cock HyCum 2Gay HyMusc MuscUp Musc Taller SizeUp AgeUp Hairier  Using a magic balloon to blow yourself up bigger is great, but blowing up other people can be even more fun. Added Jul 2019 Updated Aug 2019 4 parts 10,293 words 14,924 views
• Tony the muscleboy by muscle16  CockUp Cock Self MuscUp Musc   Added Aug 2005 6 parts 11,492 words 29,225 views 4.3 stars (10 votes)
• You have that effect on me by Krisiar  CockUp Cock NipCum MuscUp Musc M/M  With it being after hours and so hot in the office besides, Danny decides to relax the dress code a bit while he makes his underling, Tim, work late. Added Oct 2011 3,467 words 25,179 views 5.0 stars (9 votes)
• The revisualizer by BRK  AlwHard CockUp Cock HyCock NipC Self NipCum MuscUp Musc SizeUp Hairier Nonc  A set of weird controls at the tiny cable TV broadcasting studio has a lot of increasingly exciting effects on the guy in the picture. Added Oct 2012 Updated Dec 2017 3 parts 10,528 words 34,287 views 4.9 stars (33 votes)
• Metaboi by BRK  AlwHard Cock HyCum XAbs XCock XHead XArms XLimb XPec XTongue Rep Stack MuscUp Taller PSD Retcon Swap Merg Tksg Series  There’s a special clothing store that caters especially to the meta boi. If you’re their kind of customer you already know it—or you’ll soon find out. Added Jun 2010 Updated Nov 2017 8 parts 31,338 words 56,672 views 4.8 stars (16 votes)
• Company guys by FanTCMan  CockUp Cock Mental 2Gay MuscUp Musc Libido Hairier AgeDiff Inc Dad  You can’t even imagine how excited Joey and I were, excited and scared, when Dad said he was going to give us the formula he’d been sampling. We were going to be models for what he called the Company. Added Dec 2002 2 parts 7,919 words 29,199 views 4.7 stars (10 votes)
• Matt and his dad by Meddler Incs  Cock 2Gay MuscUp Musc Inc Dad Nonc Symb Hypno Series  When Matt comes home to visit his dad, he is forced into being part of The Crew. Added Jun 2020 3,343 words 7,083 views
• Being accompanied by a wolf by BeCreative  CockUp Balls Cock Self HyCum MuscUp Musc Worship PSD SizeUp Fur Were  Jared’s work as a lumberjack is usually solitary, but one day he meets a very special companion. Added Jun 2021 4 parts 10,842 words 5,525 views 4.5 stars (6 votes)
• First costume by Cockatrice  NoCock XHead WFoot Crotchhead Det Tf Suit 2Inan Mcock Rubber Merg Andr Cent Hallow  Luke is invited to a special Halloween party, though he does not know yet just how special that party is going to be. Added Oct 2020 6,359 words 3,770 views 4.9 stars (7 votes)
• I want what I want by NCGazza  CockUp Balls Cock HyMusc MuscUp Musc Taller Giant PSD SizeUp Nano Viol  Multitrillionaire Benjamin Kind has Professor Grant Jennings create a DNA altering nanobite to give him the body he’s always wanted. Added Mar 2019 Updated Apr 2019 2 parts 9,243 words 17,117 views 4.5 stars (13 votes)
• A warm feeling inside by Nightingale  CockUp Cock CumInf HyCum XAbs MuscUp Taller PSD SizeUp Retcon  Adrian meets his new roommate, and right from the start he gets a warm feeling inside. Added May 2020 1,846 words 9,449 views 4.3 stars (9 votes)
• The transform center by Zboro  Cock HyCock XBalls XCock XArms XLimb 6Legs Rep Wings Musc Tf Voice 2Animal Scaly Dragon Fly  Seb gets ahold of a business card for a strange place called Transform Center, after hearing a stranger at the gym talk about how big he’d gotten. Can it be for real? And what was all that about fantasy creatures? Added Jul 2017 Updated Sep 2017 7 parts 27,524 words 18,334 views 4.5 stars (11 votes)
• 1313 Raven Lane (revised) by WordShop  CockUp Cock MuscUp Musc SizeUp Hairier Nonc Ghost Hallow  Two young guys find themselves in trouble on Halloween night after a party. They hide in an old house with the reputation of being haunted. We don't believe in haunted houses, now do we? Added Sep 2017 4 parts 11,045 words 23,071 views 4.4 stars (7 votes)
• American giants by Jonathan Banner  CockUp Cock FootUp  Johnny is introduced into a world of big men who are growing enormous cocks. Added Jan 2015 6 parts 26,948 words 41,799 views 4.7 stars (49 votes)
• When I was still human by Richard Jasper  CockUp Cock HyCock HyMusc HyStr MuscUp Musc Taller PSD SizeUp  As a teen Roger was 6 feet tall and 300 pounds of solid muscle. Nearly 30 years later he’s in his early 40s—and he’s never stopped growing, in any dimension: height, weight, strength, dick. Is he still human? Added Nov 2020 3 parts 2,973 words 5,279 views
• Away game by spacevlad  MuscUp Gut Musc PSD SizeUp  College freshman Adam is the smallest guy on the football team. On an away game road trip, he gets paired up to room with Wyatt, the biggest offensive lineman on the team. Adam tries to control himself as they are forced to share a bed, but Wyatt’s massive body is hard to resist. Added Dec 2017 2 parts 6,307 words 21,647 views 4.4 stars (17 votes)
• Dad’s gift by John Y.  CockUp Cock AgeDiff Inc Dad  For Jeff’s 18th birthday, his dad decides to give him something special and close to his heart—a donkey dick. Added Mar 2004 4,994 words 43,679 views 4.6 stars (25 votes)
• The djinn by hyperboi  CockUp Cock HyCock MuscUp Musc Inc Bro Twins Genie   Added Dec 2012 8 parts 14,201 words 32,873 views 4.8 stars (16 votes)
• The minotaur equation by LeatherGryphon  CockUp Cock MuscUp Musc 2Animal Infect Fur Series  After Dale rewrites his DNA to become a hugely muscled, hugely hung minotaur, he discovers he hadn’t thought through his transformation. Added Jul 2014 7 parts 16,439 words 25,962 views 4.7 stars (23 votes)
• Click bate by Dream Big  CockUp Cock HyCock Self AI Pandem  Andy didn’t remember ordering this weird butt and cock pleasuring equipment, but, hey, it looked like it might be fun to play with… Added Nov 2020 Updated Mar 2021 24 parts 19,898 words 14,074 views 4.9 stars (28 votes)
• Aaron’s adventures by phallicphan  Cock XCock  When you possess two huge dicks, how can you avoid using them? Told through a number of mostly standalone tales. Added Jan 2018 4 parts 10,929 words 12,228 views 4.3 stars (7 votes)
• The biggest dick by Ziel  CockUp HyCock Musc  "For this month’s Patreon story, someone suggested I try a story about someone whose cock begins growing, but unlike in other stories, the dude’s elation slowly gives way to apprehension as his schlong exceeds the idyllic porn-star cock and slowly grows into a massive, mega-dong." Added Dec 2014 5,550 words 35,115 views 4.6 stars (38 votes)
• The gene gene by RdyRoger  CockUp Cock MuscUp Musc Worship Handsomer SizeUp Race  When other guys’ spunk transforms you into a totally different, much hotter guy, you learn there are lots of possibilities for fun—if you’re careful. Added Oct 2011 6 parts 32,071 words 56,406 views 4.5 stars (25 votes)
• Grow gravity by Unknown  CockUp HyCock Addict HyMusc MuscUp Musc Giant SizeUp Immort   Added Aug 2003 3,249 words 24,892 views 4.2 stars (11 votes)
• Quarantine weight by Aphon  CockUp Cock HyCock MuscUp BellyUp Grad Hairier Pandem  Quarantine has a way of making the days blur together. After a while, it’s easy to forget what your body used to look like before your favorite Meal Replacement XL shakes. Added Feb 2021 2 parts 1,793 words 5,439 views 4.2 stars (9 votes)
• I wanna get huge by JayPat  MuscUp Musc SizeUp Inc Bro Xmas ValDay Series  “I wanna get huge,” he said. Added Oct 2012 2 parts 21,281 words 50,430 views 4.4 stars (22 votes)
• New slave by MonsterMash62  CockUp Cock Musc Retcon Slave Mind  If you had a magic rock that granted wishes that came true retroactively, would anyone even believe you if you told them? Added Jan 2013 4 parts 3,251 words 22,512 views 4.7 stars (7 votes)
• Tales of a growing teen by NBCK99  Cock Musc Taller PSD SizeUp  Teen giant Drew outlines the perks and struggles of being larger than life in his blog. Added Dec 2015 2 parts 3,987 words 30,735 views 4.5 stars (8 votes)
• The bet by JayPat  MuscUp Musc SizeUp  A simple operation can turn you into a hunk as hot as the football players you dream about. Do you even ask what the downside is? Added Oct 2012 4 parts 31,784 words 33,268 views 4.7 stars (19 votes)
• Eustace conquers the world by JayPat  CockUp Cock MuscUp Musc Taller Giant SizeUp Viol Dom  Eustace, always the victim, decides to bulk up to avoid getting beaten up. At first he tries working out, but then he uses his smarts to create ways to boost muscle growth. It soon becomes apparent these are much more effective than anticipated. Added Mar 2019 3 parts 23,971 words 14,487 views 4.6 stars (12 votes)
• Big men on campus by Aardvark and Cris Kane  HyMusc MuscUp Musc Handsomer SizeUp Viol  The Alpha Alpha Alpha fraternity recruits a prospective pledge who will need a few adjustments to fit in. Added Oct 2014 22,377 words 26,013 views 4.6 stars (14 votes)
• A thing called curiosity by papermoon  Balls Cock HyCum NipCum MusBr MuscUp Musc Tf SizeUp Merg  Out for a jog, 19-year-old Cameron decides to investigate an abandoned house that holds some unexpected secrets. Added Jan 2014 6,529 words 38,047 views 4.4 stars (20 votes)
• Twelve steps back by FanTCMan  CockUp Balls Cock Addict Mental 2Gay MuscUp Musc Worship Libido Handsomer  Ian pursued working out as a way of chasing off his inner demons. Then he heard about a serum that seemed to make you not just bigger, but enhanced everything about you that was masculine and sexy. And if it made you horny too, well, that was fine by him. Added Nov 2003 Updated Mar 2018 9 parts 33,235 words 24,727 views 4.7 stars (13 votes)
• Antony Smith by Locky  CockUp Balls Cock HyCum FootUp Grad Taller Giant SizeUp   Added Dec 2004 3 parts 3,474 words 29,148 views 3.7 stars (10 votes)
• Brandon’s bro by FanTCMan  CockUp Cock MuscUp Musc Hairier Inc Bro  Brandon initiates his brother onto a secret society of guys who are being made more and more muscular, hung, and sexy. Added Jan 2017 4 parts 8,692 words 21,285 views 4.6 stars (21 votes)
• Lockdown gym by BRK  AlwHard CockUp Cock Rep 2Gay MuscUp Musc Worship NoShirts Handsomer Grad Taller AgeDiff Inc Bro Twins Pandem  When Ed clears out his garage, his neighbor’s hunky college-age sons suggest converting the space to a lockdown gym for guys like them who want to maintain and can’t work out anywhere else. Despite the risk of distraction, Ed agrees, though the effect on his daily life turns out to be even greater than he expected. Added Apr 2021 3,110 words 5,805 views 4.7 stars (13 votes)
• The cum factory by UberPump  CockUp Balls Cock HyCum Het  A young man and his wife expand the boundaries of what it means to be a cum factory. The young stud, forced to drink the mysterious protein shake over and over again, finds it erotic to see his balls swell as a side effect. This eggs his girl to force him to drink more and push his balls to their limits. Added Jan 2021 1,465 words 5,206 views
• My new favorite app, Cockr by Clearlyhere  CockDn NoCock Cock Musc AssUp Det App Dom Swap Series  John is out of money and finds out about new app where his huge endowment could make him some serious cash. Added Jun 2017 Updated Sep 2017 5 parts 13,713 words 29,813 views 4.7 stars (28 votes)
• Adventures of a selfsucker by willy8  CockUp Cock Self Bi Het  Silas loves going down on his own big cock, and while the intense experience of autofellatio doesn’t help him with his girlfriend it does bring him closer to his handsome roommate Ben. Added Jul 2015 Updated Jul 2017 16 parts 42,450 words 34,290 views 4.2 stars (19 votes)
• Another nerd story by Sithspawn  CockUp Cock HyStr MuscUp Musc Taller SizeUp Nano  Ollie is your typical nerd who asks his neighbour for help dealing with the local bully. Tom offers some advice that leads to an encounter he'll never forget. Added Apr 2020 Updated May 2020 2 parts 9,072 words 10,132 views 4.6 stars (8 votes)
• Muscle milk by Seth Peterson  MusBr MuscUp Musc SizeUp Hairier  Travis is a bit skeptical about a new muscle supplement he buys ... but the results quickly make him change his mind. Added Jun 2016 2,012 words 24,734 views 4.4 stars (9 votes)
• Don’t cum by LordTronimator  HyCum Nonc Infect Horror  A world doomed by those who find themselves unable to stop cumming once they start, recounted by an innocent victim. Added Sep 2020 1,471 words 5,367 views
• Practice by Massim0  CockUp Balls Cock HyCock Self HyCum  Andrew is tired and covered in mud after cleaning up his team’s sodden footie pitch after a long, sodden practice. All he wants is to slough off the muck in the team’s dilapidated showers… and, all right, maybe sneak in a secret wank while he’s at it. While he’s in the changing rooms alone, though, he comes across a most unexpected piece of equipment. Added Apr 2018 Updated Jun 2018 6 parts 14,382 words 28,586 views 4.5 stars (40 votes)
• The blue pumpkin by BRK  AlwHard CockUp Cock HyCock HyCum XArms XLimb XTongue Rep MuscUp Musc Str Taller Mcock Inc Twins Merg Supn Hallow Series  Dominic is sure his blue pumpkin jack-o’-lantern will be a hit. What he doesn’t know is what will be brought forth when he lights the candle within… Added Oct 2020 6 parts 8,774 words 4,952 views 5.0 stars (14 votes)
• Figurines by RdyRoger  CockUp Balls Cock HyCum MuscUp Musc Libido Handsomer SizeDn SizeUp Race Hairier TongueGr  A pair of bracelets let the wearer gain the proportions and attributes of any figurine you pick up. Once you understand that, you start to realize there are some very well-built figurines out there... Added Feb 2009 4 parts 9,284 words 25,764 views 4.6 stars (18 votes)
• Incubus by CentaurQuinn  CockUp Wings HyMusc MuscUp Tf Taller Infl Infect Incub Supn Immort Shift  Ken discovers his friend with benefits is more than he seems, and might be a solution to a problem at work. Added Oct 2020 2,534 words 5,881 views 4.8 stars (27 votes)
• Blessing or curse by Ultra GMan  CockUp Balls Cock Self MuscUp  John has something a lot of guys would kill for: a cock that gets bigger when you have certain kinds of sex. But that’s not all it’s cracked up to be… and the change isn’t always for the better. Added Jan 2012 Updated Apr 2012 18 parts 50,288 words 57,578 views 4.8 stars (25 votes)
• Hyper active imagination by Ziel  CockUp HyCock MuscUp Musc Taller Giant SizeUp Fur Xmas ValDay  James’s attention wanders sometimes, usually in the direction of making the person he’s staring at not just hotter but impossibly muscled and unbelievably hyper-donged. It’s so vivid, it’s almost like it’s real... Added Oct 2013 Updated Mar 2018 4 parts 17,127 words 45,634 views 4.5 stars (22 votes)
• The jock bully by JayPat  Cock MuscUp Musc Taller PSD SizeUp Viol Dom Series  The once small and skinny Josh is now huge—nearly seven feet of muscle and power. But the guy he’s crushing on isn’t out, so Josh tries intimidation to get Rob to confront what he wants. Meanwhile, Josh’s brother also wants to get huge, and there’s a guy on his mind, too. Added Jun 2019 Updated Jul 2019 2 parts 13,397 words 10,776 views 4.6 stars (13 votes)
• Kenji by Dream Big  CockUp Cock HyCock Self HyCum MuscUp Musc Taller SizeUp Race Nano  The new stock guy at work, Kenji, is Sam’s pure fantasy—cute, tall, muscled, cheeky, and packing—and Kenji seems just as appreciative. There’s a secret about how Kenji got that way, though, which Sam accidentally discovers the hard way. Added Feb 2019 Updated Mar 2019 6 parts 19,054 words 16,224 views 4.9 stars (14 votes)
• Loading... by Ziel  CockUp Balls Cock HyCock HyMusc Immob MuscUp Musc  Russel is feeling embarrassingly puny his first day trying to work out at the gym, but with a little determination, a few simple exercises, and his friend’s gag gift—a “Loading muscles…” workout tank and an “Enhance” brand jock strap to go with it—things start to turn around pretty rapidly. Added Feb 2019 7,139 words 16,102 views 4.6 stars (19 votes)
• Matched pairs by Jerkoffcentral  CockUp Cock Self MuscUp Musc Virgin Inc Bro Bi  Peter becomes infected, not just with growth, but with a need for more strength and size. Added Oct 2013 Updated Jun 2016 14 parts 42,000 words 52,597 views 4.8 stars (29 votes)
• The cabin by HugeEndowments  Balls Cock HyCock Self HyCum Worship  A story about two friends and some excessive sizes. Added Mar 2021 2 parts 9,239 words 5,167 views 5.0 stars (10 votes)
• The cock dungeon by LordTronimator  AlwHard Balls Cock CumMilking Herm Cage Nonc  A group of boys awaken within a dark, strange dungeon, completely butt naked and sporting boners that seem to refuse to go away. They hope to find any other prisoners and an escape before succumbing to the strange location’s influence. Added Jun 2020 Updated Aug 2020 4 parts 9,222 words 6,380 views 4.0 stars (6 votes)
• Web cam abuse by Tereshky  CockUp Cock NipCum MusBr MuscUp Musc BellyUp Taller PSD SizeUp Infl  Two enterprising college jocks think they can pay their way through school by showing off their ripped bods as part of a web cam business. When a company comes along offering them a ton of money for an hour’s work, they learn that when an opportunity sounds too good to be true, you should always read the fine print. Stretch Studios isn’t kidding when they say they’re not responsible for any “alterations” to their employees. Added Sep 2020 4,260 words 7,376 views 4.6 stars (7 votes)
• Hunky stripper Derek by Amouri  Cock PublicOrg Nude  A hot and horny male stripper entertains and dances at a private party fully nude and hard. Added Aug 2021 774 words 1,695 views
• Spin the bottle by EdIam  Cock 2Gay Inc Dad Dom  Matty lives in a pretty homophobic area with pretty homophobic friends, but maybe a magically-enhanced game of spin the bottle can help loosen them up? Added Aug 2021 9,825 words 2,143 views 3.8 stars (5 votes)
• Comeuppance by JJJJohnson  CockUp Balls Cock HyCock MuscUp Musc Giant SizeUp Bro Twins  No more than one tablespoon each, huh? Suuuuuure! Added May 2006 4,071 words 40,084 views 4.6 stars (19 votes)
• Mustering up by Krisiar  CockUp Balls HyCock NipCum XAbs XLimb 2Gay MuscUp Musc Retcon Sugg  Jonas finds a terrible-smelling cologne that unexpectedly makes anything he says come true. Naturally he exploits this to make him and his friends hotter and more hung, but he soon loses control and takes things to extremes. Added Jul 2011 2 parts 5,992 words 55,734 views 4.4 stars (19 votes)
• Best buds by Richard Jasper  Cock 2Gay MuscUp Musc Grad Hairier  John and James, one straight, one gay, are freshman roommates. They bond over bodybuilding… and succeed beyond their wildest imaginings. Added Feb 2020 9 parts 13,438 words 8,316 views
• The lawyer by Nick Gallo  Cock MuscUp Musc M/M NS  Joe is eager to start work at a new firm. There’s just one odd thing about the place: almost everyone else seems a lot bigger than him. Added Jun 2015 2 parts 3,039 words 11,677 views 4.4 stars (5 votes)
• A Christmas wish by Buck Reams  CockUp Balls Cock NipC HyCum NipCum MuscUp Musc Tf SizeUp Hairier Nonc Infect Xmas  Writing out your fantasies can have practical consequences, if you do it on a scrap of paper you forgot came from a magical tome. Added Dec 2019 1,975 words 11,145 views 4.8 stars (16 votes)
• A most unusual curse by BeefyBullGuy  Cock 2Cock CockBody Tf Nonc Absorb  Jackson’s misadventures in a Asian shrine to cock lead to an unexpected curse. Added Mar 2018 3 parts 6,032 words 16,057 views 4.9 stars (14 votes)
• Angelo and Adrian by WordShop  CockUp MuscUp Musc Grad HyPher Infect M/M  Genius Angelo and sweet Adrian are both scarred by their pasts. Angelo has to accept change in his life, and accidentally, without intending it, Adrian is forced to accept a new life for which he is not at all prepared. Added Oct 2017 Updated May 2018 9 parts 43,220 words 20,907 views 4.4 stars (7 votes)
• The berries down by the creek by Krisiar  CockUp HyCock Prehen NipCum XAbs MuscUp Musc SizeUp  Jack hangs out with his friend and crush, Kurt, which leads to an encounter with a bush sporting some unusual berries. Added May 2011 3,567 words 47,455 views 4.3 stars (10 votes)
• Grow lamp by Dream Big  CockUp Cockfuck Cock HyCock Self MuscUp Musc Taller SizeUp Series  The old lamp and light bulb Jeremy found at a flea market turn out to have some unexpected side-effects—effects that Jeremy’s lifelong best friend Tom can’t fail to notice. Added Jun 2018 10 parts 14,030 words 27,776 views 4.7 stars (32 votes)
• Augmentations by Also Known As  CockUp Cock MuscUp Musc Worship Scent Handsomer SizeUp Future Series  Pursuing a fantasy, a successful man hires an erotic partner who’s been augmented, but the kinds of pleasures his new lover can share with him are far beyond anything he’d imagined. Added Jan 2014 18 parts 98,808 words 34,941 views 4.1 stars (9 votes)
• Brad’s big change by FanTCMan  MuscUp Musc Handsomer   Added Dec 2002 5 parts 16,500 words 64,838 views 4.6 stars (24 votes)
• My brother was a teenage muscle freak! by Pump Culture  MuscUp Musc Inc Bro  This is a story of how my muscle fetish first got started and how my brother turned himself into a true muscle freak. Added Nov 2020 3,084 words 5,566 views 4.8 stars (5 votes)
• They’re really sensitive now by spacevlad  MuscUp Musc Giant PSD SizeUp Fatter  Burly musclebear daddy Josh gets his nipples pierced, which makes them extra sensitive...and leads to some BIG unexpected benefits! Added Nov 2016 Updated Apr 2017 2 parts 5,742 words 19,328 views 4.5 stars (12 votes)
• An officer’s odyssey by Alexander Wolf  Cock Musc  Late in his patrol, Alex responds to a call about an abandoned truck near some treacherous caverns—only to find a very large being named Hephaestion looking for a way out of the prison to which he was consigned by the Fates. Added Jun 2015 3,474 words 9,364 views 4.3 stars (13 votes)
• Ruler of the universe by John Cahill  CockUp Cock MuscUp Musc Giant SizeUp Hairier  Jeff, a perfectly ordinary teenager with a perfectly ordinary body, starts growing right in the middle of a perfectly ordinary schoolday. At first he’s embarrassed, but the more out of control the growth becomes, the less he cares. Added Jun 2015 5,140 words 21,869 views 4.3 stars (11 votes)
• Frank’s gym by Writ Bro  CockUp Cock MusBr MuscUp Musc Dom Slave  Alec finds out more about what it means to be one of Frank’s bitches—and having his growth under Frank’s control. Added May 2014 Updated Mar 2015 7 parts 22,108 words 48,580 views 4.6 stars (38 votes)
• Harvard man by JayPat  Mental MuscUp Musc Taller  Luke’s barely into his first week at Harvard, and he’s already figured out what he’s going to be studying—muscle. Added Mar 2020 2 parts 17,469 words 7,314 views 5.0 stars (8 votes)
• Are you sure by Dream Big  CockUp Balls Cock Self HyCum MuscUp Musc Handsomer Taller SizeUp Race Bi Het  Suddenly awash with money, Bill takes the plunge and follows the stories of secretly augmented men and women to a remote lab where they promise to fix everything he doesn’t like about his body. Added Nov 2019 5 parts 6,234 words 9,844 views
• C is for… by King Dave  CockUp Cock 2Gay MuscUp Musc Grad AgeDn  Owen decides to order some custom health supplements online. He never expected them to have these kinds of side effects. Added Feb 2021 Updated Mar 2021 4 parts 8,701 words 12,485 views 4.9 stars (10 votes)
• The new associate by Tym Greene  CockUp Cock HyCock MuscUp Musc Nude SizeUp TongueGr Dad Fur M/M M/M/M  Zhu is looking forward to his first day a new architectural firm, sure the way he grows—and makes other people grow just from being around him—will make things very interesting. Added May 2015 Updated Dec 2020 3 parts 12,564 words 35,065 views
• Joined by BRK  CockUp Cock XDig XCock XHead XTongue XTorso Rep MuscUp Musc Taller SizeUp Nonc Merg  Dylan wakes up kissing an incredibly beautiful man he’s never met before, and finds that he’s more connected to this man than any lover he’s ever had. Added Sep 2017 Updated Feb 2021 5 parts 22,816 words 12,338 views 4.8 stars (17 votes)
• Wish list by Neltharion5  CockUp Cock MuscUp Musc SizeUp Retcon Dom Genie Fant Supn  Two men rub a lamp at the same time and have to wish for each other, and, completely unaware of what they’re doing, go a little overboard. Added Aug 2016 4,051 words 17,619 views 4.5 stars (15 votes)
• Alpha master god king by MaleHypnoDomination and Mr. GreyMan  MuscUp Musc Dom Genie Mind  An unassuming househusband accidentally becomes the God-King of the world. Added May 2016 2 parts 7,650 words 20,211 views 2.7 stars (31 votes)
• The Change by Richard Jasper  CockUp Cock MuscUp Musc Taller SizeUp Series  A skinny researcher’s muscle growth experiments on himself make for impressive changes. Then he tries them out on his friend, who’s already muscular. Added Feb 2009 4 parts 6,368 words 25,448 views
• The pills by LordTronimator  AlwHard CockUp Balls Cock HyCock HyCum  An 18-year-old college student, Thomas, orders some pills online that promise to help him with his small problem. When they don't work fast enough for him, he decides to down the whole bottle—and gets more than he bargained for. Added Apr 2020 Updated May 2020 12 parts 16,260 words 15,173 views 4.8 stars (17 votes)
• Aiden and Andrew by JB  Musc PSD SizeUp Vore  Two roommates have some fun, inside and out. Added May 2019 3,441 words 8,918 views 5.0 stars (7 votes)
• Blessed by the moon by Saaruu  HyCock HyCum MuscUp Tf SizeUp Fur Were  Ritzy gets back from work, exhausted. He gazes at the moon, which somehow feels… different from usual. His roommate comes back home and they both enjoy a nice adult film when the werewolf in Ritzy decides to go wild. Really wild. And big. Added Sep 2018 3,700 words 12,811 views 4.0 stars (5 votes)
• Big Dick Energy by Ziel  CockUp Balls Cock HyCock Self HyCum  Steven needs a serious pick-me-up if he is going to survive a day of classes on next to no sleep. Fortunately, there’s a store near campus that ought to carry just what he needs—an aptly named drink known as “Big Dick Energy”. Added Mar 2020 3,309 words 10,338 views 4.7 stars (9 votes)
• Let’s make a bet by Seth Peterson  Fem MusBr MuscUp Gut Musc BellyUp Grad Taller PSD Dom  My boyfriend has always had some exceptional monster pecs! And over the years, they just got bigger and bigger… and so did he! My man cannot stop growing, and I love every inch of his expanding, heaving frame! Come check out the perfect swelling journey that is my big alpha boyfriend! Added May 2019 3 parts 10,394 words 13,103 views 4.2 stars (9 votes)
• The power of bondage by Writ Bro  Cock MusBr MuscUp Musc Dom Hum Bond Slave  A curious sub encounters a strict BDSM master who sees a lot of potential in the young man’s currently ordinary appearance. Added Aug 2016 Updated Mar 2018 9 parts 16,340 words 27,009 views 4.6 stars (18 votes)
• Werewolf High by BRK  AlwHard CockUp Cock HyCock XDig XCock XArms XLimb Rep MuscUp Musc SizeUp Inc Twins Were  The star of a teen werewolf show has a nagging sense that something weird is happening to the show’s extremely muscular, hung, and horny cast and crew, but he can’t quite put his finger on what it is. Added Jul 2014 Updated Dec 2015 3 parts 12,574 words 30,458 views 4.5 stars (28 votes)
• All Hallows’ revelry by Element53  CockUp Cock MuscUp Musc Taller PSD SizeUp Supn Hallow  Jake is invited to a Halloween bonfire by a hunky stranger, and he quickly learns how much fun a little revelry can be. Added Oct 2020 5,277 words 4,489 views 4.6 stars (5 votes)
• The four jocks: Horny teens by hyperboi  CockUp Balls Cock HyCock NipCum XCock Btaur 4Legs XArms Rep MuscUp Musc Taller SizeUp Inc Bro Series   Added Apr 2014 3 parts 7,484 words 29,022 views 4.7 stars (7 votes)
• Coming of age by Also Known As  CockUp Balls Cock Self HyCum MuscUp Musc Taller SizeUp HairDecr Inc  Jerry’s teenaged nephew comes to visit him in San Francisco, and turns out to be very huge, very beautiful and very uninhibited. Added Feb 2019 4 parts 12,660 words 17,027 views 5.0 stars (12 votes)
• Just between fiends by Cumguts  HyCock CumInf HyCum MusBr HyAnus Volup Demons  Regular buff guy Dean is met with an unwanted guest (or two) over breakfast. Things get considerably stickier when he tries to get rid of them. Added Nov 2020 3,422 words 5,113 views 4.6 stars (8 votes)
• The salt: the gym bunny by RdyRoger  CockUp Balls Cock HyCum Mental MuscUp Musc Worship Libido Handsomer Voice PSD SizeUp Hairier Nonc Bond Series   Added Jun 2010 6 parts 14,393 words 9,756 views
• Toy story by LenZelig  MuscUp Musc AgeDiff Inc Dad Twins Andr Space  During a storm Bob stumbles across a strange webpage offering something called “The Ultimate Sex Machine”. Intrigued, he clicks “order”, expecting maybe a sophisticated sex toy. Instead he gets Randy, a hunk-shaped machine dedicated to ensuring that Bob experiences ultimate sexual possibilities from now on and willing to reshape reality to make it happen. Added Jul 2002 2 parts 6,947 words 24,613 views 5.0 stars (50 votes)
• grUV by quickquezzed  CockUp Cock HyCock Self MuscUp Musc SizeUp  Friends go out clubbing by the water and make a hunky new friend, Brad, who likes to swim and looks great in just a red speedo. Brad has a secret that he hadn’t planned to show his new friend, but things soon get pleasantly out of hand. Added Nov 2017 5,910 words 34,668 views 4.9 stars (215 votes)
• Attil|a|rt by LAComplex  CockUp Cock MuscUp Musc Taller Giant SizeUp Viol  The 15-foot phenomenon Attila pays a visit to the world-famous Michelangelo’s David statue, having decided to offer to the world a new reference for manliness and virility. Added Mar 2019 7,032 words 7,932 views
• The clockwork dial by RdyRoger  CockUp Cock MuscUp Musc Libido Grad AgeDn Hairier  A man finds what looks like a beat-up old pocket watch, but when he gets it working again he finds its intricate dials and mechanisms are actually designed to make other guys incrementally—like his roommate Gabe, for example. Added Apr 2012 3,603 words 20,705 views 4.7 stars (16 votes)
• Family trouble by HandsomeLitleBoy  CockUp Balls Cock HyCum MuscUp Taller Inc Bro Twins  Max starts to notice some strange behavior from his big brother Brad—behavior that involves ungodly amounts of cum. Added Oct 2020 2 parts 2,454 words 6,552 views 4.7 stars (7 votes)
• Growing relationship by Alakazam1988  CockUp Balls Cock HyCock MuscUp Musc Grad  Shortly after finding the love of his life, Connor has these strange shivers now and then. First, he tries to deny everything, but the truth can’t hide for long. Connor’s cock grows with each shiver. Year after year after year. Added Nov 2018 4 parts 10,893 words 13,833 views 5.0 stars (12 votes)
• Induced transformation: a brief history by BRK  CockUp Cock HyCock HyCum Rep MuscUp AgeDn App Retcon AgeDiff Inc Bro Dad Nonc Infect Dialog  A father explains to his son that back in his day, they didn’t have any of these fancy-schmancy apps with built-in retcon. Back then, if you changed someone, they changed, and everyone had to just suck it up and deal with it. Added Jun 2020 2,248 words 6,254 views 5.0 stars (12 votes)
• Hard to hide by BRK  CockUp Cock HyCock MuscUp Musc Grad Taller SizeDn SizeUp Merg Share M/M  Jooyong is working his uncle’s demolition site when he encounters a man in need of protection, but it’s more complicated than your average plea for help. For one thing, the man who needs help is not an ordinary man. And the kind of help he needs is something Jooyong isn’t even a little prepared for. Added Jun 2017 Updated Jul 2019 7 parts 20,225 words 18,362 views 4.8 stars (13 votes)
• Mandemic by Ziel  CockUp Balls Cock HyCock HyCum Immob  When the cock-growing virus breaks free, even quarantining may not be enough. Added Apr 2020 2,374 words 8,916 views 5.0 stars (7 votes)
• Gym parasite by Aphon  CockUp Balls Cock HyCock 2Gay Nonc Infect  When a failed experimental piece of parasite goop finds itself in a gym, it must spread itself quickly or die. Its means of transmission has some huge side effects, whether you like it or not… Added Dec 2019 1,711 words 11,193 views 4.5 stars (16 votes)
• Alpha House by NBCK99  CockUp Cock MuscUp Musc HyPher  A collection of young guys take part in a reality series where the action includes everyone spinning a wheel and getting random body changes. Added Mar 2015 Updated May 2015 3 parts 11,941 words 50,498 views 4.7 stars (80 votes)
• Grrrroooowwwwing by Kaelan  CockUp Balls Cock HyCock HyCum MuscUp Nonc  Kevin finds Bryan on Tinder, but doesn’t realize that he’s a special man who can help him realize his dream to continuously grow bigggggeeerr… Added Jan 2018 Updated Mar 2018 3 parts 6,272 words 28,185 views 4.4 stars (19 votes)
• Burst by BRK  CockUp Cock XCock Rep Mental HyStr MuscUp Musc NoShirts Str Handsomer Tf Taller SizeUp Alien Xmas  In a sealed-off underground bunker, exposure to a tear in the fabric of space-time created by an illegal energy experiment is producing some interesting changes in the men trapped inside. And on top of everything else, it’s Christmas, and there’s no way they’ll ever see home again… Added Dec 2020 3 parts 11,494 words 5,754 views 4.7 stars (10 votes)
• Evolving friendship by Yoru  CockUp CockDn 2Gay Musc Scent Dom Hum  Preston and David were bros for life until David began taking a secretive treatment that has made him bigger, stronger, and more aggressive. Preston wants to save their friendship, but David has changed and may have to force Preston to accept that. Added Oct 2020 3,861 words 5,487 views 4.7 stars (19 votes)
• Supersized by Musclesaber  CockUp Balls Cock HyCock CumInf HyCum MuscUp BellyUp Taller Giant Super  After an experiment gone wrong, Max unexpectedly grows into a giant. After being saved by his superhero crush, Amplified, the pair tries to get the giant man’s growth under control. Added Nov 2020 2 parts 5,286 words 6,817 views 5.0 stars (7 votes)
• What’s it like by Richard Jasper  CockUp Cock HyMusc HyStr MuscUp Musc Taller SizeUp Hairier AgeDiff  “What’s it like” to be the world’s biggest, strongest, most muscular 17-year-old? To make hairy, bearded powerlifting muscle daddies look like little boys? To be the object of worship of all of your classmates? To have, well, you’ll have to read the rest to find out, won’t you? Added Jan 2021 1,441 words 5,548 views
• Beyond ascension by lazlostrange  HyStr Musc Taller PSD SizeUp Super Fly  It has long been accepted by natural belief that no man could possess divine gifts. But what could happen when one particular man becomes an exemption? Added Jul 2021 1,530 words 2,448 views
• Christmas wish by Riu  CockUp Cock HyCock 2Gay MuscUp Musc Sugg Inc Bro Xmas  Two grown-up brothers follow their childhood tradition of waiting up for Santa. Only this time, after a few shots of special whiskey, a different kind of Christmas wish is granted. Added Dec 2016 3,925 words 20,955 views 4.9 stars (21 votes)
• Curious cats by FanTCMan  CockUp Cock MuscUp Musc Hairier Nonc   Added Nov 2002 8,423 words 28,990 views 4.9 stars (13 votes)
• Green gassy giant growth by JKL  CockUp MFSwap Mental MuscUp BellyUp Mpreg Tf Voice Giant SizeUp Infl  Heyden is out checking on his crops when a strange meteor shoots by, leaving change in its wake. Added Apr 2020 1,494 words 6,581 views 4.4 stars (5 votes)
• Peen genie by Ziel  CockUp HyCock MuscUp Musc SizeUp Genie  Scrawny little theater nerd finds a real, live genie of the lamp! When it comes to wishing go big or go home. Added Oct 2015 6,558 words 25,018 views 4.2 stars (6 votes)
• Biggest man of them all by muscl4life  Cock HyStr MuscUp Musc  A short story on the life of the biggest man ever, who just happened to be short. Added Nov 2013 Updated Dec 2013 7,673 words 21,438 views 4.7 stars (7 votes)
• The guinea pig by JayPat  CockUp Cock MuscUp Musc Taller SizeUp Viol Nonc  Jeff and Zach score some unconventional workout juice, but since they don’t know its effects they decide to try it out on Jeff’s skinny, picked-on brother, Nate. Added Feb 2019 5,711 words 13,736 views 4.3 stars (12 votes)
• The Latin twins by RdyRoger  CockUp CockDn Balls Cock 2Gay MuscUp Musc Grad Taller SizeDn SizeUp Race Sugg Inc Bro Dom  A man is gifted by "the watchers" to make changes to himself and others that will last for 24 hours. Two of his escapades are detailed in this story. Added Apr 2012 2 parts 7,238 words 34,191 views 4.6 stars (8 votes)
• Say cheese and grow by hyperboi  CockUp Cock Self MuscUp Musc Grad Inc Bro  When Greg and his friends take a picture of themselves using a creepy camera, the resulting image shows them wildly transformed in different ways. They just think it’s a weird glitch, until it slowly starts becoming true. Added Nov 2013 13 parts 29,433 words 33,518 views 4.7 stars (23 votes)
• Bodymorphchat by BRK  XAbs XCock Btaur XArms XLeg XLimb Rep Str Tf Dialog M/M M/M/M  Conversations in this chat room are just like any other, with one exception: your screen name eventually becomes literally true. Added Nov 2004 1,920 words 20,179 views 5.0 stars (10 votes)
• The new job by hyperboi  CockUp Cock HyCock HyMusc MuscUp Musc Grad SizeUp Inc Bro  Out-of-work engineer Jake takes a job at an isolated mansion, where he’s overpaid for just guarding a gate and letting through mysterious trucks. He and his coworkers are getting slowly bigger and hornier, too, and all this seems really great except for a certain nagging doubt—and a terrifying warning from the hugest of his fellow guards. Added Aug 2014 8 parts 20,447 words 31,203 views 4.6 stars (39 votes)
• Vision space by BRK  CockUp Cock HyCock HyMusc MuscUp Musc Tf Taller Giant SizeDn SizeUp AgeDiff Alien Space Future  Sent to explore an unknown, derelict spaceship in search of usable technology, a young marine unexpectedly discovers three sexy inhabitants, guardians of a secret no one could have imagined. Added Jun 2021 6,302 words 3,936 views 5.0 stars (9 votes)
• Enhanced muscle and futuristic porn by Marquis de Rent  CockUp Cock HyCock FTM Immob MuscUp Musc Tf PSD SizeUp Nano Space Future  In a futuristic space convoy, a young doctor builds his career on groundbreaking male enhancements. Added Sep 2016 5 parts 25,251 words 26,209 views 4.5 stars (24 votes)
• .hack//swap by Ziel  CockUp Cock MuscUp MuscDn Musc PSD SizeDn SizeUp  Thomas wants to prove his wrestling skills to his best friend, but there’s one major problem. Thomas is a runt! It doesn’t matter how skillful he is if he can’t even budge his titanic pal. That’s where his latest creation comes into play. Now armed with a way to even the playing field, Thomas and his pal gear up for some friendly competition and lot more than either of them bargained for. Added Apr 2018 9,026 words 17,038 views 4.1 stars (14 votes)
• Speedo transformation by bruce  CockUp Cock MuscUp Musc Tf Symb  That castmate in your high school play with the hot cock, great body, and perfect ass has a secret: special Speedos. And he’s very willing to share. Added Feb 2009 2,096 words 52,742 views 3.8 stars (14 votes)
• Failed revenge by GiantGuy  CockUp Balls Cock MuscUp Musc PSD SizeUp   Added May 2003 1,941 words 24,744 views
• The perfect fit by TheSizeKing  CockUp Balls Cock HyCock HyCum MuscUp Musc Taller Pride  When someone can grow you to whatever size you want, make sure they know how big you want to be. Otherwise things can go a little overboard. Added Jun 2020 Updated Aug 2020 5 parts 14,385 words 17,523 views 4.7 stars (20 votes)
• Honey and cum by Ro_burrr  CockUp Cock MuscUp Musc Taller SizeUp Hairier Virgin Het  Anna helps her husband with his “small problem”, with (un)foreseeable consequences. Added Jan 2021 5,649 words 5,275 views 4.9 stars (9 votes)
• OmniGro by Whatinsomnia and Ziel  CockUp Cock HyCock NipCum MuscUp Musc AssUp SizeUp  Dissatisfied with the speed at which the current OTC dick growing serum works, Eli, a brilliant scientist in his own right, sets out to make his own super-powered serum. Eli wastes no time in breaking in the new concoction on himself and his boyfriend. The results speak for themselves and their new product revolutionizes the world as they know it. Added Mar 2016 3 parts 45,143 words 20,614 views 4.7 stars (7 votes)
• Be careful what you download by Tereshky  CockUp Cock HyCock MuscUp Musc Nude SocMed  Tim Ryan learns a lesson about using Instagram filters. Pick to the wrong one and it might change more than your pics. Added Dec 2019 3,438 words 11,724 views 4.4 stars (15 votes)
• The cock blog by TheSizeKing  CockUp Balls Cock HyCock Self HyCum Grad  Patrick was just your average 25 year old guy. He’s just got one secret: he has the world’s biggest dick, and it seems to be getting bigger. Added Aug 2020 Updated Oct 2020 5 parts 8,685 words 9,295 views 4.4 stars (10 votes)
• Flashmob by BRK  Cock XCock Rep MuscUp Musc NoShirts Taller M/M M/M/M  Jacob receives a strange camera that has an unexpected effect when he takes a picture of his hunky roommate, Keith, with whom he’s become increasingly smitten. Added Mar 2015 Updated May 2020 12 parts 50,403 words 30,343 views 4.6 stars (42 votes)
• Navy experiment by BRK  CockUp Cock XDig XAbs XCock XArms XLimb 3Legs Mental MuscUp Musc Libido PSD  The new protocol of vaccinations on the U.S.S. Tulsa developed by Dr. Tosk had very deliberate side-effect: your body is affected by whoever you lust for. Tosk plans for the sailors to start lusting after his impressive form—but who does Tosk lust for? Added Mar 2010 4 parts 5,764 words 38,625 views 4.4 stars (14 votes)
• Payback by muscl4life  CockUp Cock HyCock MuscUp MuscDn Musc Giant PSD SizeUp Nonc  After being betrayed by his bodybuilder boyfriend, Leo stumbles on an acquaintance with a wizard who claims to want to help him get even. Added Jun 2018 2 parts 9,659 words 17,859 views 4.3 stars (10 votes)
• Ah! my god by Josh Arima  CockUp Cock Rep MuscUp Musc Tf Infl   Added Jun 2005 4,325 words 27,926 views 4.5 stars (8 votes)
• Changr pill party by matt1008  CockUp Cock HyCock MuscUp Musc SizeDn SizeUp Infl App  Campus alpha-male Nick plans an unusual party for his buddies, having got hold of a round of Changr pills that produce temporary, unknown, and not always desirable transformations. Added Jul 2015 6 parts 10,718 words 34,318 views 4.4 stars (23 votes)
• Raiders basketball by VanderAnder  CockUp Cock Self Bi Het  Trying out for the school basketball team involves more than being really good at basketball. Added Apr 2013 24 parts 27,394 words 28,020 views 4.8 stars (13 votes)
• When you grow upon a star by OneLuckyGuy89  CockUp Cock MuscUp Musc Voice Taller SizeUp Hairier Nonc  When Aladdin Lindstrum makes a wish on a star, strange things begin happening to him, his roommates, and his boyfriend. Added Jul 2019 Updated May 2021 3 parts 10,213 words 12,436 views 4.0 stars (6 votes)
• Hey, buddy by Dream Big  CockUp Cock Self MuscUp Musc Grad Tf Giant PSD SizeUp  Ben’s high school crush, Charlie, resurfaces in his life after a mysterious incident at sea left him with a strange tattoo and a propensity for slow, inexplicable growth. Added Oct 2019 Updated Aug 2020 15 parts 15,491 words 16,895 views 4.9 stars (22 votes)
• Transform: Morning wood by Also Known As  Cock XCock MuscUp Musc SizeUp Infect Series Series   Added Jan 2014 8,923 words 9,676 views
• FertiliGro by BeastCZ  AlwHard CockUp Cock Addict 2Gay MuscUp Musc Hairier Bi Het  FertiliGro, a new fertility supplement, promises improved virility and sexual experience in men—though people don’t realize just how much the little capsules will change their life. Added Feb 2020 2 parts 1,729 words 8,242 views 4.4 stars (5 votes)
• Too big by freakyhugemuscles  Immob MuscUp Musc   Added Mar 2005 2,477 words 25,477 views 4.4 stars (8 votes)
• Vacation by muscle.growth  CockUp Cock MuscUp Musc AgeDiff Dad  Just a simple vacation sleepover with Matt, Alan, and Alan’s dad working on something weird in his basement lab. Added Feb 2009 1,860 words 16,939 views 4.7 stars (9 votes)
• You and I by BRK and Jockmorphr  AlwHard CockUp Cock NipC NipCum XAbs XCock XHead XArms XLimb XPec XTorso Rep Stack MuscUp Musc Handsomer TongueGr Mcock Infect Merg  When two lovers with the power to transform each other reunite after a separation, the results can be explosive. Added Oct 2011 Updated Feb 2019 4 parts 11,942 words 36,650 views 4.8 stars (11 votes)
• Orientation by Cris Kane  MFSwap 2Gay MuscUp MuscDn Musc Tf AgeUp  After a welcoming party, freshman roommates discover that life is different at college—and so are they. Added Apr 2019 4 parts 20,127 words 13,296 views 5.0 stars (7 votes)
• And then he came by Teen Hulk  CockUp Cock Self HyCum MuscUp Musc Virgin Infect  David's dream is interrupted … but only until his next visit to the gym. Added May 2002 2 parts 7,372 words 36,736 views 4.4 stars (8 votes)
• Bar wishes by NerdyCorgi  Merg  There’s a new bar in town, and Eric believes that this will be the place that he’ll get to hook up with someone and, in the long run, form a relationship with. Little did he know that if you wish upon a bar’s private room, even fantasies can come to life. Added Aug 2021 3,174 words 1,232 views
• Drawn together by Johnny29  Cock MuscUp Musc  Mike and John were instantly compatible as friends, lovers, and workout buddies, especially since both yearned for superhero-like bodies. Good thing the mysterious offer to help them achieve their dreams came to both of them together. Added Sep 2012 7 parts 13,924 words 23,165 views 5.0 stars (27 votes)
• Magic eye by RdyRoger  CockUp CockDn Balls Cock HyCock MuscUp Musc Taller SizeDn SizeUp Lycra  Once he found out the secret of magic growing things suddenly seemed really easy for Al, until the day he was startled by Turner while he was staring deep into his hot friend, Tony. Added Aug 2019 Updated Sep 2019 7 parts 20,700 words 13,931 views 4.8 stars (14 votes)
• WYRD: What You Really Desire by RDR  NipCum MusBr MuscUp Volup AssUp  Marco is sick of being a small guy, doing what he can to fix the issue. When hope seems lost, a pop up appears on his computer asking what he really wants as if it were going to give it to him. But what does Marco really want? Added Apr 2021 1,478 words 3,802 views 4.7 stars (6 votes)
• Rigsaw by Thorn  BellyUp Fatter Infl  Men have been going missing without a trace. Only those who go missing knows what truly happens, and what types of traps they have to undergo for some misdeeds in their past. Added Jun 2021 3,898 words 2,255 views
• Mysterious kidnapping by Joven  CockUp Balls Cock MuscUp Musc AssUp  Jared and Derek are traveling abroad when they’re suddenly kidnapped and secreted away in an isolated room… naked. They naturally become aware of each other’s junk, though Derek isn’t too pleased by Jared’s attention. But the situation with their equipment only gets more intense… Added Feb 2018 Updated Apr 2018 13 parts 22,924 words 23,338 views 4.9 stars (15 votes)
• Porn can be healthy by Egi  CockUp Cock HyCock HyCum Infect  Zack is a healthy, horny young man who, like any other boy, likes to look at porn. Always one for novelty, Zack comes across the perfect website for him and his needs! Added May 2017 2 parts 8,693 words 22,131 views 4.9 stars (30 votes)
• Mutation by BRK  CockUp Cock HyCock XCock 4Legs XArms XLeg XLimb 3Legs XPec Rep Stack  Everyone in Portia, Alaska has been grown thicker and stronger and made irresistibly beautiful, but none more than the teens in the high school. Geek genius Mr. Lewis tries to roll back the most extreme changes in Mr. Casey’s class as a test case, but the trial doesn’t go anywhere near as planned. Added Jun 2010 Updated Jul 2018 4 parts 9,583 words 66,548 views 4.9 stars (17 votes)
• The Myostatin Kid by Richard Jasper  CockUp Cock HyStr MuscUp Musc Taller SizeUp  Johnny is one of those genetic freaks who lacks the gene for myostatin, the protein that regulates muscle growth. Without it, there’s nothing to tell the body to stop growing muscle! Added Nov 2020 4 parts 3,568 words 5,562 views 4.4 stars (5 votes)
• The escape by hyperboi  CockUp Cock HyCock Self 2Gay MuscUp Musc Inc Bro Twins Nonc Alien  Sam and his brother find themselves taken in their sleep and trapped in some strange warehouse-like space, along with all the other teens in their community. Not only is there no way out, but something is happening to them all... Added Dec 2014 3,492 words 20,927 views 4.7 stars (21 votes)
• META jocks by BRK and Jockmorphr  CockUp Balls Cock NipC NipCum XAbs XCock XHead XLimb XPec Rep Stack MuscUp Musc Scent SizeUp Retcon Sugg  Two members of a select fraternity full of superhot, multilimbed guys semi-obliviously compare notes on how their powerful cum promotes changes in their bodies—and, it turns out, each other’s. Added Aug 2009 4 parts 7,269 words 35,954 views 4.4 stars (14 votes)
• Alpha Luke releases the beast by Eric Aaldersen  Cock HyCum HyStr Musc Virgin HyPher Supn Series  Luke thinks back to his first sexual encounter with a beta—in the back of a school bus! Added May 2020 4,905 words 4,433 views 4.7 stars (11 votes)
• Colossal Clothing by QuasarSun  CockUp MuscUp BellyUp Taller PSD SizeUp Hairier Fatter  Spencer is just your average post-college graduate, down on his luck and working a dead-end job when he runs across a magical clothing store that gives him a new job, a new perspective, and a lot more. Added May 2020 Updated Jun 2020 2 parts 3,666 words 7,325 views 4.3 stars (13 votes)
• Lazarus by muscl4life  CockUp Cock MuscUp Musc Giant PSD SizeUp  A rogue bio-engineer discovers a way to infuse young men with the strength of the sun. Added Apr 2018 3 parts 21,555 words 15,749 views 4.6 stars (16 votes)
• Pollination by Absman420  CockUp Balls Cock MuscUp Musc Alien  The beginning of the most erotic alien invasion/muscle growth story… ever! Added Oct 2020 5,867 words 4,964 views 4.9 stars (14 votes)
• Alpha Luke grows his circle by Eric Aaldersen  Balls Cock MuscUp Musc Inc Bro Supn Series  Now fully aware of his alphahood, Luke breeds some more betas hoping to make Brian an alpha like him. Luke and Mike finally bond as they were meant to. Added Mar 2020 8,980 words 6,532 views 5.0 stars (10 votes)
• Green legacy by JayPat  MuscUp Musc SizeUp Viol Slave  Billy, the tough loner kid, has a secret ability to grow suddenly, hugely bigger. He decides to share his secret with Sam, and Sam has no idea why. Added Oct 2012 10 parts 52,094 words 23,962 views 4.1 stars (9 votes)
• Twin studs by Anonymous  Cock XCock XArms XLimb AgeDiff Virgin Inc Bro Dad Twins   Added Jul 2014 3 parts 42,539 words 12,399 views 4.0 stars (22 votes)
• Cult of the Muscle Beast by SuperWaffle  CockUp Cock MuscUp Musc Worship SizeUp  Horny twunk dancer and cum factory Branson is thrilled to learn that the man of his wet dreams, the huge muscle god Maximilian, has engaged his services for a private session. What Branson doesn’t expect is the effect his cum has on Maximilian—or what that means for Branson’s future. Added Aug 2020 19,638 words 6,912 views 4.5 stars (8 votes)
• Orc night at the Eagle by spacevlad  MuscUp Gut Musc PSD SizeUp Orcs  Scott gets a gag gift from his roommate—orc tusks—and enjoys them more than he ever could have expected, as he turns into a massive, sex-crazed orc on a night at the bar. Added Mar 2019 3,710 words 8,223 views 4.1 stars (10 votes)
• Chad gets collared by Portowulf  Dumber 2Gay Virgin Slave Mind  Roommates Rohan and Chad find an alternative use to a failed experimental device. Added May 2020 2,027 words 4,459 views
• Curt’s Olympic bid by Portowulf  2Gay BellyUp Fatter Hum Nonc  Curt thought his dreams of competing in the Olympics were over before a mysterious coach promises to make him huge. Added Sep 2020 1,377 words 3,618 views
• Four for the game by Clearlyhere  CockUp CockDn Cock MuscUp Musc Handsomer SizeUp Inc Bro Swap  Four jocks play a body changing game. Added Feb 2017 2,962 words 16,525 views 4.5 stars (19 votes)
• The giant bully by Ace  MuscUp Musc Taller SizeUp  Sometimes the roles get reversed, when the bully is the nerd and the victim has the muscle. Added Oct 2018 Updated Feb 2019 3 parts 2,145 words 13,620 views 3.9 stars (7 votes)
• The magician by The Gecko Rose  CockUp HyCock XCock Str Det Hypno  Rich doesn’t believe in magic, until a little-known Vegas stage magician with some remarkable purple paste shows him and his two eager friends (not to mention an audience of very interested guys) exactly what magic can make possible. Added Jul 2015 Updated Apr 2018 8 parts 11,972 words 21,158 views 4.9 stars (13 votes)
• Metachange by LordTronimator  CockUp Balls Cock HyCock HyCum 4Legs XArms XLeg XLimb App Inc Bro Hum Nonc  Bullied 18-year old high school student Nathan just wants to spend his time in class doodling. But he’s always mocked for what he does. So what happens when a mysterious app suddenly shows up on his phone and promises to change things? Added May 2020 Updated Jun 2020 5 parts 8,689 words 5,999 views 4.6 stars (11 votes)
• This town’s not big enough by Ziel  CockUp Cock HyCock