Top-Voted Stories

A list of the stories live on the site voted 4.0+ stars (with 5+ votes).

1,035 stories found. Total word count: 13,425,876.

• 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 16,217 views 5.0 stars (45 votes)
• Bali encounter by LenZelig  Cock Musc Virgin Inc Twins Bi Het  On a trip to Bali, a happily married couple, Pete and Lori, encounter a pair of irresistibly beautiful muscle twins named Wayan and Kadek, and then their family and friends… and things become deliciously complicated. Added Nov 2017 Updated Dec 2017 2 parts 29,433 words 10,022 views 5.0 stars (39 votes)
• 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 23,340 views 5.0 stars (27 votes)
• 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 24,823 views 5.0 stars (50 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 65,974 views 5.0 stars (30 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 19,060 views 5.0 stars (29 votes)
• Abyssus Abbey 2 by Pen Darke  Cock HyCock Prehen Musc Fur Demons Incub Witch Horror Supn Series M/M M/M/M/...  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 Oct 2021 9 parts 65,661 words 9,904 views 5.0 stars (28 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 26,727 views 5.0 stars (25 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 20,477 views 4.9 stars (54 votes)
• 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 14,638 views 4.9 stars (34 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 22,316 views 4.9 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 15,576 views 4.9 stars (29 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 14,351 views 4.9 stars (28 votes)
• 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 34,672 views 4.9 stars (28 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 17,304 views 4.9 stars (53 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 21,622 views 4.9 stars (26 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 41,112 views 4.9 stars (25 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 17,198 views 4.9 stars (25 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 14,239 views 4.9 stars (73 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 34,907 views 4.9 stars (216 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 8,670 views 4.9 stars (40 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 25,140 views 4.9 stars (30 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 122,306 views 4.9 stars (77 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 23,576 views 4.9 stars (25 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 34,525 views 4.9 stars (33 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 53,433 views 4.9 stars (65 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 17,490 views 4.9 stars (29 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 50,168 views 4.9 stars (47 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 57,781 views 4.8 stars (25 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 8,339 views 4.8 stars (25 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 74,699 views 4.8 stars (35 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 14,670 views 4.8 stars (29 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 41,343 views 4.8 stars (48 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 24,554 views 4.8 stars (36 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 34,339 views 4.8 stars (30 votes)
• Cutting through by Peeda  Self XLimb Det Tf Swap  The story of a boy, a knife and a fantasy. Added Dec 2015 Updated May 2016 4 parts 5,776 words 20,905 views 4.8 stars (25 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 92,500 views 4.8 stars (87 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 62,972 views 4.8 stars (29 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 116,767 views 4.8 stars (38 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 61,572 views 4.8 stars (33 votes)
• The power of suggestion by BRK  CockUp Cock XCock Rep MuscUp Musc SizeUp Retcon Sugg Inc Bro Twins Series  On a long bus trip, Jordan can't help using his ability to suggest physical changes on his handsome seatmate, but things soon get out of hand. Added Feb 2009 1,878 words 39,721 views 4.8 stars (33 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 6,059 views 4.8 stars (27 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 36,451 views 4.8 stars (31 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 47,367 views 4.8 stars (29 votes)
• Matched pairs by Jerkoffcentral  CockUp Cock Self MuscUp Musc Virgin Inc Bro Bi M/M  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 53,120 views 4.8 stars (29 votes)
• Touch by BRK  Cock Mental Musc NoShirts Inc Bro  Kevin goes to college where his gift for making guys he likes willing to casually touch him seems to intensify just as he’s moving in with his hunky older brother. Added Mar 2019 Updated Aug 2019 5 parts 31,177 words 18,004 views 4.8 stars (33 votes)
• Tiger troubles by Meddler Incs  CockUp Cock MuscUp Musc Fur  Greg hopes for big muscles from a new experimental growth hormone—only he’s not counting the side effects, or his new brothers in fur, muscle, and cock. Added Dec 2014 Updated Sep 2016 2 parts 5,763 words 23,257 views 4.7 stars (39 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 56,197 views 4.7 stars (38 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 58,417 views 4.7 stars (45 votes)
• 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 43,883 views 4.7 stars (30 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 133,129 views 4.7 stars (93 votes)
• Double trouble by NBCK99  Inc Twins  Caleb is really into how hot identical twins are. His roommate decides to help him out a little. Added May 2015 4,088 words 11,227 views 4.7 stars (29 votes)
• 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 131,986 views 4.7 stars (92 votes)
• Gooed friends by Ziel  CockUp Cock XCock XLimb SizeUp Goo Tent Hallow Shift  The author, prompted to write about multi-limb and keen to indulge in his love for “slime boys,” offers a story rife with gooey fun, cute sappy young love, multi-limbs, consentacles and some mild muscle and junk growth for good measure. Added Jul 2014 Updated Jan 2018 5 parts 38,627 words 39,506 views 4.7 stars (67 votes)
• At the cafeteria by BRK  CockUp Cock XCock MuscUp Musc Handsomer Sugg Infect Immort M/M M/M/M  Jordan meets up with his friends at the cafeteria very late one night before midterms. They end up making a game of passing around Ethan’s ancient-recipe birthday liqueur and telling strange rumors about each other, with some unintended consequences. Added Jun 2015 3 parts 8,362 words 24,785 views 4.7 stars (40 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 45,298 views 4.7 stars (33 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 56,120 views 4.7 stars (36 votes)
• Truth to tell by BRK  CockUp Cock MuscUp Musc Sugg  There are way too many temptations involved when the things you say about people around you come true—especially when you fall in lust with the hot guy in the next dorm room. Added Feb 2012 Updated Jun 2018 3 parts 9,610 words 30,703 views 4.7 stars (26 votes)
• 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 30,033 views 4.7 stars (29 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 28,012 views 4.7 stars (32 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 36,976 views 4.7 stars (32 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 62,305 views 4.7 stars (51 votes)
• Fortitude by BRK  CockUp Cock MuscUp Musc SizeUp Space M/M M/M/M/...  A starship full of hot young recruits gets marooned in a strange part of space that seems to have an augmenting effect on the crew, leaving the AI and the unexpectedly immune commander to try to get them free. Added Aug 2009 Updated Mar 2018 3 parts 8,994 words 32,364 views 4.7 stars (35 votes)
• Shift by NBCK99  CockUp Cock HyCock XArms MuscUp Musc PSD  At first there were only a few of those abnormally tall, wildly muscular, huge-cocked, boner-inducing half-naked guys, encountered here and there on a train, in a mall, a demigod amidst the chaff. That was at first. Added Jul 2014 Updated Mar 2016 5 parts 13,636 words 36,124 views 4.7 stars (54 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 50,685 views 4.7 stars (80 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 41,982 views 4.7 stars (49 votes)
• A few minor adjustments by Cris Kane  Cock 2Gay MuscUp Musc SizeUp  Geeky freshman Ryan is given a camera with special selfie-editing options that Instagram hasn’t thought of yet. As Ryan adjusts to his modified body, he then applies the camera’s effects to his jerk of a roommate, leading to all sorts of complications and an unexpected encounter with his roommate’s bro buddy Shiloh. Added Oct 2014 4 parts 19,736 words 29,114 views 4.7 stars (30 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 102,868 views 4.7 stars (35 votes)
• Dr. Engorgio by TheSizeKing  CockUp Balls Cock Self HyCum MuscUp Musc  A doctor known for growing his patients lets his fantasies run wild with a new client, Nick. Added Aug 2019 Updated Sep 2019 6 parts 11,239 words 17,527 views 4.7 stars (29 votes)
• The blue banana by BRK  AlwHard CockUp Cock Self MuscUp Musc SizeUp Sugg Series M/M  Mike unknowingly eats an artifact of the universe. Added Jan 2015 3,507 words 34,245 views 4.7 stars (46 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 94,106 views 4.6 stars (34 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 30,499 views 4.6 stars (42 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 31,402 views 4.6 stars (39 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 43,895 views 4.6 stars (25 votes)
• 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 45,483 views 4.6 stars (33 votes)
• Body game by BRK  CockUp Cock XDig XAbs XCock XLimb Rep MuscUp Musc SizeUp Mcock Series M/M  In an experimental story based on changes generated randomly by a computer program, the already well built Marcus is invited to a warehouse where he and four others play a strange game that, turn by turn, makes their bodies randomly freakier and freakier. Added Aug 2014 13,161 words 28,769 views 4.6 stars (27 votes)
• Enchanted growth by NBCK99  CockUp Balls HyCock MuscUp Musc SizeUp Fant  When Andrelle’s questing companions succeed in finding a magical dagger, he discovers just why the artifact is so desirable. Added Apr 2015 Updated Oct 2015 5 parts 18,345 words 39,723 views 4.6 stars (27 votes)
• Fantastic island by FanTCMan  CockUp Cock HyCock Self Dumber MuscUp Musc Nonc  Gene’s island vacation takes a sudden twist when he meets a handsome stranger and has a drink with him, only to wake up blearily to encounter the man’s muscle giant fuck toy... and his own body is feeling very strange... Added Jul 2014 5,249 words 27,857 views 4.6 stars (32 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 36,628 views 4.6 stars (29 votes)
• 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 34,140 views 4.6 stars (34 votes)
• Collarbone cock by BRK  AlwHard CockUp Cock HyCock Musc Retcon SocMed M/M M/M/M  Nick’s new Picthread page is nothing but pictures of guys whose cocks reach up to their collarbones. Funny thing is, they’re not morphs at all, despite what Nick’s roommate thinks. Or, rather, used to think. Added Apr 2013 2,189 words 30,805 views 4.6 stars (26 votes)
• Threefer by BRK  AlwHard CockUp Cock NipC HyCum NipCum  His lover doesn’t seem to mind, but Quinn decides to try out some pills that are supposed to grow his dick anyway while Diego’s away. The fact that they work is less surprising than the two unexpected side-effects that soon develop. Added Apr 2019 Updated Jan 2021 4 parts 10,753 words 13,281 views 4.6 stars (31 votes)
• Bound together by NBCK99  XCock XArms XLimb MuscUp Musc SizeUp  When you have the ability to "push" people to be bigger and hotter, and not a lot of self-control, a really cute repairman can be a challenge—especially if things don’t go quite the way they’re supposed to. Added Jan 2016 4,818 words 12,864 views 4.6 stars (33 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 84,034 views 4.6 stars (25 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 24,373 views 4.6 stars (31 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 35,367 views 4.6 stars (38 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 38,094 views 4.6 stars (30 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 58,508 views 4.6 stars (45 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 48,746 views 4.6 stars (38 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 34,485 views 4.6 stars (29 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 27,340 views 4.5 stars (31 votes)
• 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 163,959 views 4.5 stars (128 votes)
• Magnetic magic by Squidy  CockUp Cock MuscUp Musc  Josh discovers his new roommate, Jack, has a powerful effect on him—especially his cock. Added Dec 2014 Updated Sep 2016 6 parts 13,223 words 43,560 views 4.5 stars (59 votes)
• The Black Knights by Meddler Incs  MuscUp Musc Symb Series  Once you join the infamous college team known as the Black Knights, there are only three things that matter: lifting, fucking, and football. Added Aug 2016 Updated May 2017 4 parts 6,479 words 18,879 views 4.5 stars (26 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 30,678 views 4.5 stars (28 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 265,492 views 4.5 stars (71 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 36,985 views 4.5 stars (29 votes)
• Above average by Ziel  CockUp Cock HyCock HyCum PublicOrg HyMusc MuscUp Musc Nude AssUp Retcon M/M M/M/M M/M/M/...  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 224,573 views 4.5 stars (89 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 38,042 views 4.5 stars (37 votes)

• Toil & trouble by BRK  XArms XLimb Rep Witch  After a series of threatening texts, P.I. Jordan Coffey wakes up different—and not alone. Added Oct 2016 Updated Nov 2018 3 parts 16,531 words 8,154 views 5.0 stars (20 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 19,567 views 5.0 stars (18 votes)
• The forge by mf81  CockUp Cock HyCum MuscUp Musc  Paul meets Derrick, mysterious blacksmith that invites him up to his place up in the woods called The Forge. What he finds there will change life in ways he couldn’t imagine. Added Oct 2018 3 parts 7,122 words 8,927 views 5.0 stars (18 votes)
• Side effects by TheSizeKing  CockUp Cock HyCock HyCum MuscUp Musc  Stephen went to the doctor for typical flu symptoms, but the medication he was given began to give him some unexpected side effects. Added Sep 2020 Updated Oct 2020 2 parts 5,424 words 13,138 views 5.0 stars (18 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 14,100 views 5.0 stars (18 votes)
• Alpha Dave goes camping by Eric Aaldersen  Musc Virgin Supn Series  A special breed of men walks secretly among us. On a camping trip with his latest twunky conquest, one of these men, a muscle alpha named Dave, senses still more hotties nearby, ripe for his attentions and his bottomless supply of spunk. Added Dec 2019 8,226 words 6,476 views 5.0 stars (17 votes)
• Out of control by Sammas6  CockUp Balls Cock HyCock  Toby and Matt are young men working on an experimental plant-growth formula out of Tony’s garage. It doesn’t work on the plants, but Matt finds another use for it. Added May 2021 5 parts 8,975 words 6,668 views 5.0 stars (15 votes)
• The pendant by Bulge101  CockUp Cock 2Gay MuscUp Musc   Added Jun 2012 Updated Jul 2012 3 parts 4,654 words 38,012 views 5.0 stars (15 votes)
• Trade by Alakazam1988  CockUp Cock HyCock  Discovering the ability to trade a part of your body for part of another naturally leads to experimentation with inches of cock, and with just how far you can transform someone who really wants it. Added Feb 2017 3 parts 3,360 words 14,711 views 5.0 stars (15 votes)
• Alpha Luke goes camping by Eric Aaldersen  Cock Musc Virgin Supn Series  Budding Alpha Luke takes his twink buddies into the woods for a weekend of exploration. Added Jan 2020 12,421 words 5,975 views 5.0 stars (14 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 5,157 views 5.0 stars (14 votes)
• Jock Pussy Syndrome Information Video #1 by SC Walker  2Gay MuscUp Tf  A video that details the symptoms and treatment for the mysterious new disease affecting athletic men: Jock Pussy Syndrome. Added Oct 2020 1,728 words 3,855 views 5.0 stars (14 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 5,133 views 5.0 stars (13 votes)
• 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 11,532 views 5.0 stars (13 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 22,526 views 5.0 stars (13 votes)
• Take me, change me by NBCK99  CockUp Cock MuscUp Musc Virgin Dom  When John Truman finally gets intimate with Scott, his hot teammate, John’s body suddenly changes into Scott’s deepest fantasy. Added May 2016 4,033 words 17,103 views 5.0 stars (13 votes)
• Alpha Dave returns home by Eric Aaldersen  Cock Musc Supn Series  Alpha Dave returns home and remembers the alpha who made him. Added Feb 2020 7,790 words 3,849 views 5.0 stars (12 votes)
• The blue daiquiri by BRK  CockUp Cock XCock XHead XArms XLimb MuscUp Musc Handsomer Taller Series M/M  Another artifact of the universe makes an appearance, this time at a loft party to celebrate the pilot Henry scripted, Ice City, going to series. If only Henry were having as much success figuring out his feelings for his sweet but ordinary-looking roommate, Gavin. Added Oct 2017 9,647 words 8,387 views 5.0 stars (12 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 17,205 views 5.0 stars (12 votes)
• Definition of a grower by Luke B.  CockUp Cock  Kyle is pretty sure people don’t understand the magnitude of what he means when he says he’s “a grower”. Added Apr 2013 2 parts 4,221 words 23,703 views 5.0 stars (12 votes)
• Finding Mark by nightwolf285  CockUp Cock MuscUp Musc SizeUp  Turning 16 means lots of changes for Mark. The one he’s not expecting is the ability to change his own body. Added Oct 2010 11 parts 28,620 words 37,039 views 5.0 stars (12 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 13,985 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 6,417 views 5.0 stars (12 votes)
• Needham High Mavericks by BRK  CockUp XCock Rep MuscUp Musc Grad  Motivating the team has been taken up a notch. Added Aug 2005 Updated Oct 2018 4 parts 14,488 words 16,555 views 5.0 stars (12 votes)
• Secret Santa by BRK  CockUp Cock XAbs XArms XLeg XLimb 3Legs Rep MuscUp Musc NoShirts Inc Bro Xmas Series  Joe’s crew at his new firehouse are destined to become very important to him, but the extent to which he’s more and more heart-thuddingly attracted to his handsome, well-muscled workmates worries him more than a little. Added Dec 2016 3 parts 15,182 words 12,591 views 5.0 stars (12 votes)
• Alpha Coach and Mike by Eric Aaldersen  Balls Cock Musc Virgin Supn Series  Alpha Mike remembers the alpha who made him—his super-hot high school hockey coach! Added Apr 2020 7,300 words 5,344 views 5.0 stars (11 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 4,989 views 5.0 stars (11 votes)
• The G by Braun1  CockUp Cock HyCock MuscUp Musc Hypno  Working at the gym in a small town you get to admire the local muscle on the sly. But when someone comes along who’s muscled to the point of being inhuman, all bets are off. Added Mar 2013 6 parts 43,307 words 26,861 views 5.0 stars (11 votes)
• Graduation party by Jefftaur  XAbs XCock Btaur 4Legs XArms XLeg XLimb MuscUp Musc  Steve and the rest of his friends have a huge graduation dance party. It’s already a blast even before the “novelty cup challenge” starts the guys chugging some special boytaur-making beer. Added Mar 2009 3 parts 3,455 words 12,598 views 5.0 stars (11 votes)
• A handful of Lukes by NBCK99  Rep  It was pretty clear his new roommate Luke was hiding something, but coming home to find Luke embracing ... another Luke? ... was not what he expected. Added Jun 2016 3,123 words 5,226 views 5.0 stars (11 votes)
• The little spoon by Ziel  SizeDn  "September’s Patreon topic was shrinking. I really need to work with some shrinking stuff more often. I love playing around with different sizes, and if I had spent time at each size this would have turned into a novel instead of a short story." Added Nov 2014 5,605 words 13,334 views 5.0 stars (11 votes)
• Pholus reborn by Absman420  CockUp Cock MuscUp Taller SizeUp Weed  A man inherits an elixir that transforms him into one of the old gods. Added Oct 2020 8,534 words 4,986 views 5.0 stars (11 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 12,771 views 5.0 stars (11 votes)
• 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 6,772 views 5.0 stars (10 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 6,682 views 5.0 stars (10 votes)
• Alpha Luke saves the party by Eric Aaldersen  Cock Musc Bi Supn Series  Luke’s homecoming party escapades include romps in a change room, a hot tub, a friend’s bedroom, and a sauna! Added Feb 2020 8,757 words 4,087 views 5.0 stars (10 votes)
• The best instructions are those that are clearly stated by Ziel  CockUp Balls Cock HyCock HyCum Infect  Marty talks his super smart friend into whipping him up a special potion that will help with his little problem. Added Jun 2016 5,194 words 16,716 views 5.0 stars (10 votes)
• Beta Danny’s day at the park by Eric Aaldersen  CockUp Balls Cock HyCum HyStr MuscUp Musc Grad HyPher Supn Series  Danny asks Luke to do some roleplaying with him when they’re in public and it has super sexy consequences. Added Dec 2020 3,893 words 4,596 views 5.0 stars (10 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 20,303 views 5.0 stars (10 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 5,336 views 5.0 stars (10 votes)
• My quarantine get in shape plan by Dream Big  CockUp MuscUp Musc Scent Grad Pandem  Stuck at home during the quarantine, Terry orders a used weight machine, figuring he’ll use the time to lose weight and tone up. His motivation doesn’t really hit, though, until he starts spending time with his hunky neighbor, Sebastian. Added Aug 2020 Updated Oct 2020 24 parts 17,396 words 7,850 views 5.0 stars (10 votes)
• Peter and the magic forest by Shamash  CockUp Balls Cock HyCum MusBr MuscUp SizeUp Fant  Peter takes a shortcut through the “Cursed Woods”, rumored to be full of wild beasts. Little does he know that this detour will bring him into contact with the inhumanly sexy, horny denizens of the Woods and leave him permanently transformed… Added Apr 2020 2,371 words 5,185 views 5.0 stars (10 votes)
• Simon says by BRK  CockUp Cock HyCock XDig XAbs XCock XArms XLimb Musc Taller SizeUp Sugg  My goofy, fun-loving shop owner loves staging these ridiculous competitions with us, but this latest one is definitely the craziest. Added May 2013 Updated Jun 2017 2 parts 7,732 words 18,479 views 5.0 stars (10 votes)
• The source: a Henry Himura mystery by Proteus  CockUp Cock Dumber MuscUp Musc Grad PSD Hairier  Henry is hired to track down a missing young man named Samuel Roth. The trail leads him to a gym and a mysterious serum called Hard-T. Added Aug 2013 11 parts 15,896 words 18,984 views 5.0 stars (10 votes)
• SpoogeQuest by BRK  CockUp Balls Cock XCock Rep MuscUp Musc PSD SizeUp Witch Fant  After pissing off his game-developer ex, Vlad finds himself inside an open-world gay erotic fantasy game where everything about him is up to 11—and, unless he undertakes a perilous quest, further changes will await him. Added Sep 2019 4,829 words 6,863 views 5.0 stars (10 votes)
• There’s something about Billy by Ziel  CockUp Balls Cock HyCock XBalls XCock Infect  Billy seems like perfectly normal, good-looking guy from the waist up. But there’s something going on inside Billy’s weird, super-baggy pants, and Duke and Kevin were determined to find out what it was. Added Feb 2017 5,442 words 13,309 views 5.0 stars (10 votes)
• Triple trouble by Tommyhawk  Rep  An accident turns lab assistant Val into Val-1, Val-2, and Val-3. Added Jan 2006 4,871 words 7,601 views 5.0 stars (10 votes)
• Twinning: The college years by BRK  AlwHard CockUp Cock HyCock Self XDig XAbs XCock XTongue Rep MuscUp Musc NoShirts Taller SizeUp TongueGr StPat Series M/M M/M/M/...  At college, Will attracts the attention of a sexy, Irish hockey player who pushes all Will’s buttons—but now that he’s in this new world Will isn’t sure he can share all of himself with his slowly growing admirer. Added Mar 2017 Updated Oct 2021 8 parts 36,967 words 20,145 views 5.0 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 25,354 views 5.0 stars (10 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 14,507 views 5.0 stars (9 votes)
• Birthday bonus by john smith  CockUp Cock 2Gay Libido Virgin  In a world where magic is real, Jeremy's enchanted birthday gifts are put to immediate use. Added Jan 2006 4,359 words 19,707 views 5.0 stars (9 votes)
• The blue paramour by BRK  CockUp Cock HyCock Self XAbs XCock XHead XArms XLimb 3Legs Stack PointyEars Taller Retcon Sugg Ogres Series  Quint, a high-end sex-line agent, likes to explore his callers’ secret fantasies with them. But things go a little differently after a lunch that happened to include a certain artifact of the universe. Added Aug 2019 5,132 words 5,301 views 5.0 stars (9 votes)
• The fan by Also Known As  CockUp Cock MuscUp Musc Taller PSD SizeUp  A short story about a muscle growth author who meets a fan who can fulfill his fantasies. Added Mar 2019 4,203 words 8,397 views 5.0 stars (9 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 7,448 views 5.0 stars (9 votes)
• Harvest by borednhony  CockUp CumMilking Mental Nude  In the not so distant future, a fertility crisis has caused extreme actions to be taken by governments worldwide. This is where we find Del, the latest in the line of remaining fertile men entering the extraction facility. It’s a limited contract as far as Del knows, but something untoward seems to be lurking in the workings of the facility. Added Apr 2021 2,808 words 3,519 views 5.0 stars (9 votes)
• Irresistible by Jefftaur and Mr Arbitrary  WFoot Genie  Brandon has a thus-far unrequited crush on his friend Ethan. A wish gives him the chance to push things forward, but the results aren't what he expected! Added Feb 2019 8 parts 29,914 words 4,095 views 5.0 stars (9 votes)
• Morning body by BRK  CockUp Cock Self Rep Wings Grad Taller Fly  An intense capacity for imagination makes real the things others only dream of. Added Nov 2003 2 parts 8,240 words 19,910 views 5.0 stars (9 votes)
• Remodel by BRK  XCock XArms XLeg XLimb 3Legs XPec Stack  On a modeling shoot in Brazil, Reese finds himself uncovering his body’s hidden potential—which apparently includes some unexpected extras. Added Mar 2020 Updated Sep 2020 2 parts 5,049 words 3,715 views 5.0 stars (9 votes)
• The Servonyx exclusion by BRK  CockUp XArms XLimb MuscUp SizeUp AgeDiff Nonc Andr  Uncovering some corporate skulduggery leads to dire consequences for Beck. Nearly killed in a suspicious crash, he soon finds himself halfway around the world trapped in a physically enhanced pleasure humaniform… in the keeping of a handsome Russian plutocrat. Pleasure is easy to unlock in this new existence, but escape and revenge will be a lot harder to manage. Added Jul 2018 Updated Nov 2018 3 parts 13,885 words 7,952 views 5.0 stars (9 votes)
• Tips welcome by TheSizeKing  CockUp Cock HyCock HyCum MuscUp Taller SizeUp SocMed  Mark decides to try a sex new toy he found online for his live stream. But when more tips start rolling in from his viewers, he finds that the toy offers more than just sexual pleasure. Added Oct 2020 4,432 words 6,830 views 5.0 stars (9 votes)
• Tuesday by BRK  XDig XAbs XCock XArms XLimb XPec Rep Str Inc Twins Swap  My best bud Kev and I have a secret. Okay, it’s a really badly kept secret—I grow extras. But when Kev starts to change too, we soon find out there are lots of secrets at my school. Added May 2003 Updated May 2021 7 parts 13,431 words 25,676 views 5.0 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 50,681 views 5.0 stars (9 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 4,148 views 5.0 stars (9 votes)
• Alpha Luke passes on the lore by Eric Aaldersen  CockUp Balls Cock MuscUp Musc Grad Supn Series  Luke and Brian’s story finally reaches its climax and afterwards things get positively mystical. Added May 2020 4,887 words 3,842 views 5.0 stars (8 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 32,093 views 5.0 stars (8 votes)
• Book of Adam by World Muscle  MuscUp Musc Taller SizeUp  The story of Adam begins with a young man who just wants to have confidence in himself and his body. Little did he know that wishes are a powerful thing. Added Nov 2020 Updated Feb 2021 2 parts 6,775 words 8,508 views 5.0 stars (8 votes)
• Business affair by Also Known As  CockUp Cock MuscUp Musc  Terry wasn’t gay. He wasn’t, he wasn’t, he wasn’t. So why was even the thought of his new co-worker, John Smith, getting him so hot? Can he survive the upcoming business meeting without blowing… his cool? Added Jan 2014 2 parts 6,276 words 13,394 views 5.0 stars (8 votes)
• Cumming of age by Bobby  Cock  Bobby’s startlingly huge cock had left him inexperienced with sex even at 18, until a side job painting a neighbor’s house led to an unexpected breakthrough. Added Mar 2016 4,217 words 10,902 views 5.0 stars (8 votes)
• It was one of those weekends by Zeke  CockUp Pumping Cock Weed  A meat pumper’s dream weekend! Added Apr 2020 5,656 words 4,321 views 5.0 stars (8 votes)
• MissinGRO by Ziel  Cock XBalls XCock XArms XLimb AssUp PSD SizeUp  Javier discovers to his delight that encountering the infamous Pokémon glitch Missingno can have unanticipated real-world effects. Added Mar 2017 5,534 words 9,377 views 5.0 stars (8 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 11,955 views 5.0 stars (8 votes)
• Orientation by Cris Kane  MFSwap 2Gay MuscUp MuscDn Musc Tf AgeUp M/M  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 13,717 views 5.0 stars (8 votes)
• Safe sex by LuckyMuscle  Cock Musc Tf SizeDn 2Inan Rubber   Added May 2006 3,528 words 15,725 views 5.0 stars (8 votes)
• Tales from the dark city by Ogrebear  CockUp Cock CumInf Mental 2Gay MuscUp Musc PointyEars Tf PSD SizeUp Race Hairier Viol Dom Hum Bond Demons Orcs Fant Mind  A human cutpurse escapes his pursuers, finding safety in, of all places, an orc buck bar. You can figure out what happens next. Added Jun 2005 7 parts 45,822 words 19,123 views 5.0 stars (8 votes)
• Aiden and Andrew by JB  Musc PSD SizeUp Vore  Two roommates have some fun, inside and out. Added May 2019 3,441 words 9,090 views 5.0 stars (7 votes)
• Alpha Dave and Alpha Luke reunite by Eric Aaldersen  Cock Musc Supn Series  After their epic camping encounter this summer, Luke and Dave reunite and Dave tells Luke what it really means to be an alpha. Added Feb 2020 6,565 words 3,743 views 5.0 stars (7 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 35,231 views 5.0 stars (7 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 4,292 views 5.0 stars (7 votes)
• The changing by NBCK99  Cock XLimb MuscUp Musc  After an encounter with an ancient book of Irish poetry that sure seems a lot like a spell grimoire, three friends discover they’ve set something in motion that will change everything—for themselves and, before long, for everyone else as well. Added Jun 2016 2 parts 5,286 words 7,485 views 5.0 stars (7 votes)
• Charlie and Frankie’s exciting new experience by Charlie Frazer  CockUp Tf Rubber  Two friends go into a strange store that turns out to offer latex monster cocks, complete with a demonstration from the shopguy of exactly how well they function. Added Feb 2018 1,331 words 7,632 views 5.0 stars (7 votes)
• Dogboys by Douglas Benjamin  2Animal Dom Fur  Richard and Toby’s usual training for subs is augmented with a new pill that turns out to have an unexpected potency. Added Jan 2015 2,897 words 16,668 views 5.0 stars (7 votes)
• The four jocks: The loft by BRK  CockUp Cock XCock XLimb MuscUp Musc Taller SizeUp Series M/M M/M/M/...  A quartet of very attractive clothing and fitness models sharing a loft try the transformation game during a power blackout, and are soon filled with awe at what they’re doing to themselves and each other as they play. Added Dec 2013 2 parts 9,337 words 12,996 views 5.0 stars (7 votes)
• The interrogator by ed  Cock 2Gay Musc Worship Voice Dom Nonc Mind  I’m a consultant for local law enforcement, with a unique ability to get the info they need. Added Jun 2021 3,187 words 2,255 views 5.0 stars (7 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 9,135 views 5.0 stars (7 votes)
• Me two by BRK  XCock XHead XLeg XLimb 3Legs XPec Rep Inc Twins Merg  Chris has some time off from his celluloid heroics as an A-list movie star and is going through fan mail when he finds a joke twin-making machine. Amused, he tries it out, with… unexpected results. Added Jan 2021 2,725 words 1,942 views 5.0 stars (7 votes)
• Muscle service station by Josef Howard  Balls Cock MuscUp Musc SizeUp Fur   Added Jul 2002 4,771 words 19,954 views 5.0 stars (7 votes)
• The new alphas go camping by Eric Aaldersen  CockUp Balls Musc Grad Supn Series  New alphas Brian, Jamie, and Jordan all enjoy fireside fucks with their lead alpha, Luke, after Luke passes on the Lore. But not before Luke and Brian bond as alphas for the first time! Added May 2020 5,376 words 2,716 views 5.0 stars (7 votes)
• Penis juice by Josh Dugan  CockUp Cock  One of the best drinks ever to come on the market is introduced at the local gas station. Added Nov 2003 931 words 13,487 views 5.0 stars (7 votes)
• The power of suggestion: Wetbar by BRK  CockUp Balls Cock HyCum PublicOrg XAbs XCock Rep Mental MuscUp Musc Libido Handsomer Tf PSD SizeUp AgeDn Mcock Retcon Sugg Bro Twins Series  A night out at the bar leads to a series of changes to a very happy young clubgoer. Added Feb 2009 2,751 words 20,097 views 5.0 stars (7 votes)
• Quinquetra by BRK  CockUp Cock MuscUp Grad Taller Retcon Supn  Exploring his workaholic husband’s ancestral house on his own, Wes encounters a strange symbol and a dreamlike man who seems closely connected to it. Added Oct 2020 2 parts 10,789 words 3,988 views 5.0 stars (7 votes)
• Stretchy summer’s day by Josh Dugan  Musc Str  The cool thing is that all this is really happening; it's not some digitally generated special effect. Added Sep 1997 1,611 words 10,322 views 5.0 stars (7 votes)
• Stuff in the cellar by Charles Westfall  CockUp Cock HyCum MuscUp Musc PointyEars SizeUp  Richard is already good-looking and abnormally hung when he discovers some alien equipment in the cellar of his new house—including a vat of goo that transforms him into someone even hotter and more hung. And there’s no way Richard’s keeping his new gifts to himself. Added Jul 2002 4 parts 15,260 words 17,926 views 5.0 stars (7 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 6,993 views 5.0 stars (7 votes)
• Toil and trouble by Ziel  Cock HyCock XCock XArms XLimb MuscUp Musc SizeUp Hallow  Wyatt and Jordan wander off the path at a haunted house and encounter a witch brewing up something just for them. Added Oct 2017 4,030 words 9,064 views 5.0 stars (7 votes)
• The trainer by Also Known As  AlwHard CockUp Cock MuscUp Musc SizeUp   Added Jan 2014 7 parts 22,349 words 19,289 views 5.0 stars (7 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 45,181 views 5.0 stars (7 votes)
• A tune up by Dream Big  AlwHard CockUp Balls Cock Self MuscUp Musc  Jay’s new boyfriend is younger and hunkier than he is, making him feel unworthy. Kim coaxes him into a workout regime and hooks him up with a friend’s experimental workout supplement, and before long Jay is catching up to his boyfriend—a lot faster than he should be. Added Mar 2019 4 parts 8,646 words 10,289 views 5.0 stars (7 votes)
• Under his wing by Richard Jasper  MuscUp Musc Taller  Frank Jones, 40, is a (gay) widower, recently out of the landscaping business and taking on a new career as a personal trainer. He’s delighted with his new neighbors, a divorcee and her 14-year-old son. The relationship that develops among the three of them is not one any of them would have expected! Just FYI: This one has a lot of muscle growth but is (unlike the author’s usual fare) a sad one. Added Jan 2021 10 parts 9,913 words 2,099 views 5.0 stars (7 votes)
• An uneven exchange by Mr Arbitrary  WFoot  Max tries to indulge his foot fetish in secret, but his boyfriend James catches him and makes an unusual exchange. Added May 2018 1,545 words 3,515 views 5.0 stars (7 votes)
• What happened by Dream Big  CockUp Cock MuscUp Musc Libido Tf Bi  When Daniel meets up after college graduation with his high school friends Chris and Jane for a beach vacation, it turns out Chris has some important news: first, he’s into both of them, and second, he’s got access to his family’s secret body transformation serum, and he’s willing to share. Added Nov 2019 2 parts 8,209 words 6,817 views 5.0 stars (7 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 8,486 views 5.0 stars (6 votes)
• Chat transcript: More than plenty by BRK  XCock XLimb Rep SizeUp Infect Dialog M/M  Two guys chatting about extras end up giving each other the works. Added Nov 2014 2,780 words 6,445 views 5.0 stars (6 votes)
• The cock-off by Armie Lingo  CockUp Balls Cock HyCock HyCum Musc   Added Oct 2005 3 parts 5,295 words 20,861 views 5.0 stars (6 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 1,591 views 5.0 stars (6 votes)
• Come to me by Richard Jasper  MuscUp Grad  Eric is a hot, young skimpy stud—what nowadays we’d call a twunk. Then he starts hearing a voice in his head. Eat big, lift big, get big! He follows the voice’s advice—with results more spectacular than he could have imagined! Added Apr 2020 10 parts 12,348 words 6,108 views 5.0 stars (6 votes)
• Coupon code: littlest by Ziel  CockDn  El decides to abuse a coupon code that promises to take “20% off”. He keeps stacking the coupon until there’s nearly nothing left! Added May 2020 7,522 words 3,579 views 5.0 stars (6 votes)
• Giant problems by aquila  HyCock HyCum Tf Taller Giant PSD SizeUp Viol  Caught up in a science experiment gone wrong, John finds himself at odds with his former boss and employer, leading to some giant problems. Added Jun 2019 3 parts 7,372 words 9,556 views 5.0 stars (6 votes)
• Go fuck yourself by Atokamematoke  Det  An unnamed man makes use of his strange abilities to penetrate himself, while observing the whole act at the same time. Added May 2016 1,020 words 6,307 views 5.0 stars (6 votes)
• Hold your tongue by Squeeshka and UnknownGentrifier  CockUp Cock NipC HyCum NipCum XCock Mcock   Added Jun 2012 7 parts 11,048 words 19,755 views 5.0 stars (6 votes)
• How it’s done by phallicphan  Musc Virgin Inc Bro Cent  College centaur shows his younger brother how to breed. Added Oct 2017 4,189 words 7,759 views 5.0 stars (6 votes)
• Incremental curse by BRK  SizeDn Witch  Jared’s non-wizarding friend Lee accidentally triggers a booby-trap of a magician’s tome, causing him to shrink to the size of his own equipment. Added Jan 2012 Updated Apr 2017 3 parts 8,206 words 20,025 views 5.0 stars (6 votes)
• The interview by TreborNawoc  CockUp Cock XAbs XCock XArms XLeg XLimb Taller PSD Virgin Cent M/M  Brad is nervous about his job interview at MultiTours Resort, but the more he sees on site the more he likes—and they seem to like him, too. Added Oct 2021 2,166 words 964 views 5.0 stars (6 votes)
• Lucas by Jefftaur  XCock Btaur 4Legs XLeg XLimb  If this is The Boy from Ipanema, then no wonder. Added Jul 2009 2,236 words 8,661 views 5.0 stars (6 votes)
• My bodyguard by Richard Jasper  CockUp Cock HyStr MuscUp Musc Grad  “Worthless” Worthington High School sophomores Roger Jensen and Nick Delios bond when the latter saves the former’s scrawny ass from the class bully, Ralphie Peters. Their burgeoning affection and academic accomplishments are only exceeded by their ridiculous muscle growth. Added Aug 2020 4 parts 10,166 words 3,185 views 5.0 stars (6 votes)
• The permanent steroid by RdyRoger  CockUp Cock MuscUp Musc Taller SizeUp  Rod’s only joking about a permanent steroid that gives you your dream body and a better life along with it, but his eccentric inventor friend, the Professor, takes the idea seriously anyway. Added Oct 2019 2 parts 5,855 words 8,607 views 5.0 stars (6 votes)
• Ramón the developer by BRK  CockUp Cock NipC HyCum NipCum XCock XArms XLimb XPec Rep Stack 2Gay MuscUp Musc Taller SizeUp Series M/M M/M/M  Ramón is used to having lusty, eyes-only encounters with the hot and hunky guys in his office, but today everything seems so much more intense, and a little eye-fucking isn’t going to be enough. Added Aug 2018 4,544 words 7,560 views 5.0 stars (6 votes)
• Shrinking for Sean by Blue Blue  SizeDn  Sean was super excited about the idea of me using the shrinking serum to become smaller than him so we could screw like that—and I was even more into it than he was. Added Jun 2003 2,694 words 21,122 views 5.0 stars (6 votes)
• Small problems by The Obsessive-Compulsive  CockUp Balls Cock HyCock HyCum Libido  College freshman Curt has certain inadequacies he’d like to correct. (Hint: Remember the “Better Living through Chemistry” meme?) Added Sep 2009 7 parts 9,668 words 32,166 views 5.0 stars (6 votes)
• Social dickstancing by Ziel  CockUp Balls Cock HyCock MuscUp Taller SizeUp Pandem  Dallas hunkers down for some self-quarantine with the goal of using his newfound free time to really bulk up, though he never would have imagined just how much he could grow! His new size brings new issues for him and his neighbor. Added May 2020 4,594 words 6,138 views 5.0 stars (6 votes)
• Summer breeze by Dave  CockUp Cock Tf Alien  Swim hunk Mike is asked to employ his recently improved body and unstoppable libido in the service of intergalactic peace. Added Jun 2012 5,170 words 10,998 views 5.0 stars (6 votes)
• Twinmaster by BRK  CockUp Cock XCock Rep MuscUp Musc  You can get lots of strange stuff on eBay—even a Twinner 3000. And if you’re obsessed with twins, you might just buy it even if there’s no chance in hell it could possibly work. Added Mar 2004 4 parts 3,500 words 8,074 views 5.0 stars (6 votes)
• All your feet on the table by James Fourlegs  Btaur 4Legs XLeg XLimb WFoot  The whole thing with wristfeet is really quite involved. Added May 2002 735 words 8,128 views 5.0 stars (5 votes)
• The antique lamp by DimethylCoconut  Rep  There are two facts about me that one should know before I tell this story: I had always had fantasies about cloning—I would date myself, and I am also a collector. The story I am going to tell is about how these two things combined and made me who I am today. Added Mar 2021 3,023 words 1,162 views 5.0 stars (5 votes)
• Centaur professor by James Fourlegs  4Legs XArms XLeg XLimb Rep Str Det Cent  This learned descendant of the famous teaching centaur Chiron passes on more than just wisdom. Added Mar 1998 2 parts 4,113 words 17,411 views 5.0 stars (5 votes)
• Cody and Todd by klj  CockUp Cock CumInf 2Gay Libido  Little green pills lead to roommate fun. Added Jun 2005 2,654 words 13,548 views 5.0 stars (5 votes)
• Colt chronicles: Case law by Neltharion5  CockUp Cock MuscUp Musc Series   Added Sep 2009 5,627 words 16,600 views 5.0 stars (5 votes)
• Crotchhead town by Cockatrice  Crotchhead Tf  When the only affordable roomshare he can find is in Crotchhead Town, Chris finds he’s more intrigued than he expected. Added Mar 2020 4,344 words 2,729 views 5.0 stars (5 votes)
• Double dream feat by Ziel  CockUp Balls Cock HyCock Rep  Aidan awakes from a surprisingly realistic dream to find things aren't quite how he remembered them. For starters, his dingy dorm room has been replaced with a reasonably sized apartment… an apartment he seems to share with his best friend. But stranger things are in store for Aidan as the morning unfurls. Added Jun 2018 4,723 words 6,804 views 5.0 stars (5 votes)
• Feet of magic by Brad Mercury  XCock XLimb  A one-on-one with this handsome magician becomes many on many. Added May 2002 1,474 words 7,840 views 5.0 stars (5 votes)
• The fugitive by Cris Kane  Cock Mental 2Gay Tf AgeDn Dom Slave Mind  One dark and stormy night, a desperate man pays a visit to a shop which he heard can do amazing things. Added Oct 2019 7,458 words 5,088 views 5.0 stars (5 votes)
• Gamble Labs by Moi Auci  CockUp Cock 2Cock HyCock Tf Series  A college guy goes looking for his missing special friend, a journey that takes him to an odd sperm donation lab and an unexpected transformation. Added Mar 2020 2,715 words 5,235 views 5.0 stars (5 votes)
• The jeans by Jefftaur  XCock 4Legs XLeg XLimb  Josh gets his hands on a pair of trick jeans and decides they’ll work better on someone half-asleep—like his buddy, Ty, who’d look really hot with extra feet. Added Aug 2013 579 words 7,775 views 5.0 stars (5 votes)
• My friend Jon by Martin Boyar  4Legs XLeg XLimb 6Legs  Ever had one of those friends who can do anything? Added Sep 2004 1,427 words 7,062 views 5.0 stars (5 votes)
• My high school god by Peterbilt  Musc  Real life story about the author and another student when we were in high school. Added Feb 2017 2 parts 11,014 words 8,913 views 5.0 stars (5 votes)
• The other side by BRK  CockUp Cock HyCock Wings Musc PSD Space Cent Merm Future  Avery, a randy cargohauler, is piloting his navship through the dimensions between the point A and point B when an unexpected breach sends him into a surreal expanse… where a well-built, winged figure takes a less-than-angelic interest in him. Added Mar 2021 6,407 words 2,124 views 5.0 stars (5 votes)
• Rapeenzel by Ziel  CockUp Cvore Balls Cock HyCock Prehen HyCum NoShirts Mediev M/M  Ziel got to thinking about old fairy tales and thought, “You know what these stories need? More gay sex and macro-dongs!” So he threw in a touch of cutesy fluff and some soft CV elements. Lots of sappy romance and monstrous dongs ensued. Added Sep 2015 6,583 words 19,544 views 5.0 stars (5 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 17,913 views 5.0 stars (5 votes)
• Side effects by Braun1  AlwHard CockUp Cock MuscUp Musc SizeUp   Added Feb 1997 7 parts 55,668 words 48,169 views 5.0 stars (5 votes)
• Stanley’s cup by Ziel  CockUp Balls Cock HyCock MuscUp SizeUp  Jason has always wanted to play on the hockey team. It’s been his dream ever since he was a little kid. Unfortunately, his size and stature didn’t lend themselves to athletic endeavors. It seems he’s destined to live out his days helping the team from the sideline… not that that isn’t without its own perks. Added Oct 2020 5,959 words 5,275 views 5.0 stars (5 votes)
• Stretch by Josh Dugan  Str  OMG can this guy stretch. Added Jun 1997 986 words 10,992 views 5.0 stars (5 votes)
• Sugar packets by RdyRoger  CockUp Cock MuscUp Musc   Added Jul 2002 4 parts 11,543 words 21,160 views 5.0 stars (5 votes)
• Tim’s obsession by GulliverWB  SizeDn  Tim is a lot taller than his boyfriend Jeff, but that’s about to change. Added Jun 2002 5,084 words 15,710 views 5.0 stars (5 votes)
• Transform: Phone sex by Also Known As  CockUp Cock XCock MuscUp Musc SizeUp Infect Series Series   Added Jan 2014 5,573 words 8,676 views 5.0 stars (5 votes)
• Trying on my first rubber suit by James Rubberman  CockUp Balls Cock HyCum Rubber  A young man who just wanted to feel rubber against his skin from the waist down tries out a very nice-feeling suit, only to get more of an experience than he bargained for. Added Dec 2018 1,897 words 8,593 views 5.0 stars (5 votes)
• Vlogger by Sithspawn  Grad Tf Super Fly X-Ray Dialog  An anonymous guy begins to notice strange changes in his body and starts a video blog to document what’s happening. Added Mar 2021 12 parts 21,599 words 3,517 views 5.0 stars (5 votes)
• What I learned on my vacation by BRK  XCock XLimb Str  (Hint: it involves extra limbs and stuff.) Added Jan 2006 2 parts 2,038 words 10,542 views 5.0 stars (5 votes)
• A whole new world by MarcusB00  CockUp Cock HyCum HyStr MuscUp Musc Viol Alien  Two siblings, looking for a profit, break into an abandoned facility for potential treasure. Along the way they accidentally open a portal and get sucked in, and one of them get woken up by young dude with muscle powers in a new world. Added Nov 2020 Updated Jun 2021 3 parts 10,278 words 6,525 views 5.0 stars (5 votes)
• X-Dream Makeover by Cris Kane  Dumber Mental MuscUp Tf AgeUp Series  Rich from selling his tech stocks, David hopes to improve his love life with a makeover from a mysterious shop in Chinatown. Added Sep 2018 4 parts 15,543 words 8,000 views 5.0 stars (5 votes)