Story Archive

A list of all stories live on the site.

1,879 stories found, sorted by total page view count. Total word count: 17,446,815.

• 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)

• 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)
• 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)

• 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)
• 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)
• 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)
• 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 162,812 views 4.5 stars (128 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• Huge changes: Book one by RdyRoger  CockUp Cock 2Gay MuscUp Musc SizeUp Hallow Series  Todd’s love for his straight best friend turns them both into their fantasies of each other—with a little help from an old lady at a Halloween costume shop. Added Apr 2012 Updated Dec 2017 5,887 words 101,763 views 3.7 stars (17 votes)
• Magic cock by Anonymous  CockUp Cock HyCock   Added Apr 1997 3 parts 6,064 words 101,750 views 4.3 stars (10 votes)

• Forced growth by hyperboi  CockUp Pumping Cock HyCock Mental 2Gay MuscUp Musc Nonc   Added Oct 2013 5 parts 6,397 words 99,637 views 4.3 stars (47 votes)
• Teen growth by Chamelion123  MuscUp Musc   Added Jul 2002 7,404 words 97,623 views 3.7 stars (23 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)
• 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)
• 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)
• Morphed muscle tit freaks by TitMorpher  NipCum MusBr MuscUp Musc  Later in the 21st century, the bodybuilding world fragmented into separate interest groups. Traditional contests still took place, but they were less popular in the face of new contests that centered around special fetishes, such as bodybuilders with huge cocks or enormous muscle tits. Added Jan 2011 Updated Jan 2012 3 parts 7,939 words 93,265 views
• 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)

• 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)
• 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)
• 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)
• 17 inches by Unknown  Cock Virgin Inc Bro   Added Mar 2009 3,639 words 81,431 views 4.4 stars (20 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)
• 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)
• Becoming the ultimate man by musclestory  CockUp Cock HyCum MuscUp Musc Voice Giant SizeUp Hairier   Added Aug 2003 4,561 words 74,209 views 4.3 stars (18 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)
• 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 73,791 views 4.5 stars (23 votes)
• 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)
• 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 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)
• 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)
• 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)

• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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 62,787 views 3.7 stars (56 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)
• 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)
• Danny gets big by StudMscl  CockUp Cock 2Gay MuscUp Musc  Danny is unexpectedly given some brown paper packets that are supposed to turn him into everything he wishes he were. He quickly learns that changing your body changes your life in unexpected ways. Added Nov 2003 3 parts 9,501 words 60,821 views 4.5 stars (17 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)

• Basement full of muscleboy gods by Krisiar  CockUp Cock NipCum XAbs XCock Btaur 4Legs XLeg XLimb MuscUp Musc  Wrestler Oliver scores some pills that are supposed to bring on muscle growth, and decides to share them with his best buds after a match. Added May 2011 2,124 words 58,599 views 4.3 stars (12 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• 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)
• Being big by BigBoy  Cock MuscUp Musc   Added Jul 2002 953 words 54,878 views 2.3 stars (22 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)
• 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 52,598 views 4.8 stars (29 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)
• 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)
• 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)
• 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)
• 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)
• 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)

• 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)
• 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)
• 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 48,581 views 4.6 stars (38 votes)
• Side effects by Braun1  AlwHard CockUp Cock MuscUp Musc SizeUp   Added Feb 1997 7 parts 55,668 words 48,039 views 5.0 stars (5 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)
• 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)
• 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)
• Jeff’s story by Muscle Flex  CockUp Cock HyCock MuscUp Musc Lycra  Jeff wants muscles. He wants to be big, and the serum he found will do just that. He gets big all right, and not just his muscles. Added Jul 2002 4 parts 8,109 words 47,240 views 4.2 stars (15 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)
• Biological inheritance by Frank Easky  CockUp Balls HyCock MuscUp Musc SizeUp Witch  Sean discovers he had been magicked into early maturation to prevent his growth. The mage who imparted this information then attempts to set things right. Will Sean grow into his true biological inheritance? Added Jul 2002 5,755 words 46,694 views 4.1 stars (10 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)
• Changes in stages by Writ Bro  CockUp Cock MuscUp Musc Lycra  That box of clothes in the attic of your new rental house? Don’t pass them off to Goodwill just yet. Added Oct 2010 Updated Jun 2011 3 parts 14,283 words 45,659 views 3.7 stars (13 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)
• 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)
• Drug test by Also Known As  CockUp Cock MuscUp Musc SizeUp   Added May 2011 8 parts 16,269 words 45,102 views 4.8 stars (13 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)
• 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)
• 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 44,044 views 4.5 stars (22 votes)
• Shirtbusters by TFWizard  MuscUp Musc SizeUp AgeDiff Inc Dad  Jared, Lance, and Lance’s father Ben discover a way to bust out of their shirts, and they can’t get enough of it. Added Oct 2005 2 parts 6,769 words 43,774 views 4.1 stars (14 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)
• 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)
• 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 43,477 views 4.5 stars (59 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)
• 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)
• 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)
• Enhancement program by BRK  AlwHard CockUp Cock HyCock XAbs XHead XLimb XPec Mcock M/M M/M/M M/M/M/...  The university’s program of offering body enhancement rewards for various kinds of scholastic and athletic achievements is very generous, and students like to have fun with the results. Added Jan 2014 Updated Jun 2018 4 parts 12,215 words 41,862 views 4.6 stars (16 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)
• 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)
• Claves, the midnight marauder by Ziel  CockUp HyCock CumInf HyCum Fant  Claves, the kingdom’s most notorious thief, has been cursed! What was meant as a means to entrap the thief and blow his cover forever backfires spectacularly as Claves ends up enjoying the curse. Now armed with a massive cock, the power to spread the curse to others, and an exhibitionist streak almost as long as his dong, Claves sets out to spread the curse and sow a little mischief and a lot of wild oats. Added Jun 2013 Updated Jan 2015 7 parts 40,994 words 41,431 views 4.1 stars (24 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)
• Freshman dreams by BRK  Cock XAbs XHead XArms XLimb Rep Wings MuscUp Musc SizeUp Fly t/t t/t/t  Even when he’s home sick, Stefan’s ability to dream up new transformations on his schoolmates is a big pain. Make that, especially when he’s home sick. Added Mar 2009 4 parts 3,089 words 40,782 views 4.8 stars (16 votes)
• 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)
• Luke is growing by Coolkid  CockUp HyCock SizeUp   Added Jun 2013 1,246 words 40,667 views 3.7 stars (10 votes)
• Cock medication by Jocktaur Kyle  CockUp Cock HyCock Self   Added Jun 2006 2,097 words 40,597 views 4.7 stars (13 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)
• 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)
• King size by BRK  AlwHard CockUp Cock Self Witch  King Rafe is subjected to a curse that will cause him, or rather a certain part of him, to become a monster, and his lover and mage-advisor Will is understandably conflicted about this turn of events. Added Aug 2006 Updated Feb 2020 6 parts 14,497 words 40,105 views 4.3 stars (12 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)

• 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)
• 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)
• 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 39,592 views 4.6 stars (27 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 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 39,501 views 4.8 stars (33 votes)
• Cock boy conversions by CockTFBoi  2Cock XCock 2Gay Tf Nonc  A gift of wish-power to a horny teen leads to some hot guys at school being turned into cock-creatures. Added Mar 2014 19 parts 14,199 words 39,397 views 3.8 stars (8 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 39,299 views 4.7 stars (67 votes)
• Josh’s genie by Anarchy A  Cock MuscUp Musc SizeUp Genie  Bullied teen swimmer Josh uses the unexpected acquisition of a genie to try improving things at school, one daily wish at a time. Added Oct 2015 Updated Jan 2016 4 parts 8,133 words 39,220 views 4.8 stars (6 votes)
• Grow and get huge by Massiveboy  MuscUp Musc Taller Hairier   Added Jul 2002 1,112 words 39,014 views 4.2 stars (13 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)
• Hung like a... by IamYurNayboor  Cock   Added Nov 2010 Updated Dec 2010 684 words 38,871 views 2.3 stars (12 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)
• 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)
• 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)
• Grandfather’s gift by Joseph  CockUp HyCock NipCum SizeUp   Added May 2012 2,983 words 38,462 views 3.1 stars (12 votes)
• Joey’s genie by RdyRoger  CockUp Cock MuscUp Musc PointyEars Genie  Now that he has a genie at his command, Joey is going to go enjoy the world, decides to give his friend Rob a few gifts before he leaves. Added Feb 2009 Updated Apr 2012 5,218 words 38,455 views 4.8 stars (9 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)
• Stop staring at me by BRK  AlwHard CockUp Cock HyCum XDig XCock XPec MuscUp Musc Tf SizeUp  Those glasses with the funny settings on the side are a lot of fun and very addicting. Added Jul 2006 1,991 words 38,398 views 4.8 stars (8 votes)
• 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)
• 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)
• The pendant by Bulge101  CockUp Cock 2Gay MuscUp Musc   Added Jun 2012 Updated Jul 2012 3 parts 4,654 words 37,889 views 5.0 stars (15 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)
• 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 37,492 views 4.6 stars (30 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)
• 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)
• 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 36,911 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)
• 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)
• Mega pecs maker dosing accident by TitMorpher  MusBr MuscUp Musc Images Series   Added Apr 2013 1,505 words 36,721 views
• 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)
• Dude cums and cums and cums by Justusboys  HyCum   Added Apr 2011 2,827 words 36,685 views 4.6 stars (19 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)
• 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)
• 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 36,499 views 4.4 stars (7 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)
• 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 36,048 views 4.7 stars (54 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)
• 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)
• Alex’s gift by Will Bowden  Inc Bro Shift  A teen discovers his shapeshifting ability, which seems to be tied to the horniness of other guys. Added Apr 2003 3 parts 4,345 words 35,716 views 4.6 stars (13 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)
• 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 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
• 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)
• 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)
• 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)
• 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)
• My big fat gay story by Your Name Here  CockUp Cock MuscUp Musc Handsomer  Henry has Jake over for dinner, and dessert might have a li’l extra kick to it. Added Jul 2006 1,183 words 34,645 views 3.6 stars (5 votes)
• The shirtless club by BRK  Cock Musc NoShirts Inc Bro Twins  A cute, well-built teenager and his twin friends make a pact to keep their shirts off at all costs. Added Jul 1997 Updated Jul 2010 2 parts 7,620 words 34,527 views 4.6 stars (13 votes)
• Matt grows up by Unknown  MuscUp Musc  Matt gets bullied by the bigger guys in school until he grows up—very, very suddenly. Added Jul 2002 2 parts 4,133 words 34,392 views 3.9 stars (9 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 34,319 views 4.4 stars (23 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 34,306 views 4.9 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)
• 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)
• 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 34,213 views 4.6 stars (29 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)
• 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 34,087 views 4.7 stars (46 votes)
• 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)
• 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)
• 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)
• 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)
• 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
• Dragon’s Horde: Waking up huge by STrRedWolf  CockUp HyCock XHead XArms XLimb MuscUp Musc Fur Alcohol Series  After a night drinking at a very unusual bar, a panther and a cougar wake up with bodies that are bursting with size, limbs, tails, balls, and cock—especially cock. Added Sep 2012 2 parts 2,577 words 33,916 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)
• U4ia gym by StevePwrBear  CockUp Cock HyCock Self MuscUp Musc SizeUp Fly  The impressively-muscled owner of the gym Steve works out at is starting to take a personal interest in his progress. Added Dec 2003 10 parts 38,596 words 33,678 views
• 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)
• 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)
• Project Cerulean MX by The Pecman  Cock MuscUp Musc Tf SizeDn SizeUp  After Michael and Joey discover a secret base in the desert, they start to undergo some changes that are both unsetting and exciting. Added Jun 2010 Updated May 2017 17 parts 54,138 words 33,368 views 4.3 stars (9 votes)
• Growing boys at UMich by iciss  CockUp Cock 2Gay MuscUp Musc Handsomer Infect  Those football jocks in the UMIch gym are about to get a whole lot hotter. Added Jan 2007 4 parts 7,144 words 33,339 views 4.7 stars (19 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)
• 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 worship by piotrpjs  MuscUp Musc Worship   Added Jan 2006 2,484 words 32,881 views
• 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)
• Worshipping Allan by BeefFan  Cock MuscUp Musc  Allan found out that worship makes him grow—so he’s sought out his biggest fan. Added May 2014 5,648 words 32,763 views 4.8 stars (14 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)
• Hulk by WBHunk  MuscUp Gut Musc Viol  An early encounter with a huge, muscular man presages transformations yet to come. Added Jul 2002 5 parts 8,751 words 32,535 views 4.3 stars (8 votes)
• Misdirected by BRK  AlwHard CockUp Cock Self SizeUp Inc Bro  Ben doesn’t realize at first exactly why his annoying older brother’s secret rituals to make himself bigger and stronger are going wrong, only that he feels pretty strange himself lately. Added Oct 2009 6 parts 5,664 words 32,405 views 4.7 stars (19 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 32,289 views 4.7 stars (35 votes)
• Giant by Joey  Balls Cock 2Cock CockBody HyCock HyCum  A giant what? Need you ask? Added Oct 2005 3,579 words 32,193 views 4.1 stars (8 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)
• Chris olympus by FanTCMan  CockUp 2Gay MuscUp Musc Hairier AgeDiff Inc Dad   Added Dec 2002 3 parts 9,167 words 32,108 views 4.4 stars (16 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 31,973 views 5.0 stars (6 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 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)
• 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
• Alex by Jcry123  CockUp Cock MuscUp Musc  A young guy decides to try out a gift from a random stranger that might making him bigger. Added Nov 2011 1,545 words 31,282 views 4.1 stars (8 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)
• Gaston: an intimidating specimen by Greg  Musc   Added May 2006 4 parts 17,189 words 31,093 views 4.2 stars (11 votes)
• Naked morph for ps2 by Male Enhancer  CockUp Cock MuscUp Musc SizeUp Inc Bro  Three brothers play a video game that has a direct effect on the people playing it. Added Jun 2013 4 parts 3,180 words 31,004 views 4.5 stars (24 votes)
• Doctor’s orders by Luke B.  CockUp Cock MuscUp Musc  When Andrew has to see a doctor after pulling a groin muscle, he can’t help but notice the physician’s immense equipment—and the doctor can’t help but notice Andrew’s interest. Added Jun 2005 4,569 words 30,847 views 4.6 stars (19 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)
• 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)
• 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)
• 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 30,653 views 4.6 stars (26 votes)
• Jim’s shot by FanTCMan  CockUp Cock MuscUp Musc Hairier Nonc Dialog  Jim isn’t sure he wants to get any bigger—he’s already so muscled and so hung he attracts too much attention. But his doctor knows best. And once the shot’s in him, Jim knows being strong and hung is the only way to be. Added Dec 2002 2 parts 3,437 words 30,638 views 4.7 stars (15 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 30,609 views 4.7 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 30,458 views 4.5 stars (28 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)

• Random acts of muscle by Mad Dog  CockUp Balls Cock Mental 2Gay MuscUp Musc BellyUp SizeUp AgeUp Race Hairier Retcon Nonc Xmas  Three stories involving Steve, a muscle-loving guy who can alter reality. Added Aug 2009 Updated Dec 2010 3 parts 11,204 words 29,979 views
• Sonic growth by Guhbone and UnknownGentrifier  CockUp Cock MuscUp Musc Taller SizeUp   Added Aug 2012 9 parts 7,592 words 29,845 views 3.8 stars (6 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 29,813 views 4.7 stars (28 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)
• Coffee coffee by NBCK99  AlwHard CockUp Cock Mental 2Gay MuscUp Musc Libido Taller SizeUp  The employees at the campus’s hottest coffee shop seem to be getting sexier… and so are the customers. Added Dec 2010 2 parts 5,251 words 29,682 views 4.8 stars (22 votes)
• First big date by Peterbilt  CockUp Cock PublicOrg Musc AgeDiff Virgin  Ben’s story of his relationship with young Jason covers many years, including getting the deets of Jason’s first big date. Added Dec 2007 3 parts 36,548 words 29,635 views 4.9 stars (20 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)
• Getting more than you bargained for by Tereshky  CockUp Balls Cock HyCock XArms XLimb XPec Stack MuscUp Musc Taller Giant SizeUp  Most people do their growing before the pose-down, but this bodybuilding competition is not what it seems. Added Jan 2013 2 parts 3,922 words 29,532 views 4.5 stars (11 votes)
• The orphanage by JayPat  Cock HyStr MuscUp Musc Voice SizeUp Viol  They told the orphans they were getting “vitamin shots”. What happened instead was a group of abandoned teens experiencing wild, sudden growth, one by one, and no one knew what would happen next. Added Sep 2012 12 parts 78,194 words 29,520 views 4.8 stars (12 votes)
• Gay centaur by Josh Dugan  Cent  This centaur is a real-life Mister, not a myth. Added Nov 1996 2 parts 3,598 words 29,509 views 4.5 stars (8 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)
• Fred’s odyssey by RdyRoger  CockUp Cock MuscUp Musc Worship  After saving the life of a magic-user on a tropical beach, skinny Fred suddenly finds his dreams of size and endowment coming true—not only for him but for his friends, too. Added Jul 2002 6 parts 25,375 words 29,237 views 4.7 stars (9 votes)
• 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)
• 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)
• 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)
• 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)
• 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 28,995 views 4.7 stars (30 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)
• Growing boy by Massiveboy  MuscUp Musc   Added Jul 2002 699 words 28,844 views 2.8 stars (8 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 28,652 views 4.6 stars (27 votes)
• A perfect revenge by FanTCMan  CockUp Cock 2Gay MuscUp Musc Handsomer Hairier   Added Jun 2002 Updated Mar 2014 8,078 words 28,617 views 4.3 stars (17 votes)
• 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)
• I need to borrow your cock by BRK  CockUp Cock Self XCock Det Retcon Sugg  Joey promised a really hot guy he could suck both his dicks. Only he just has the one, so he really needs to borrow his roommate’s. Don’t worry, he’ll return it. Added Jun 2012 Updated Feb 2020 4 parts 14,604 words 28,467 views 4.5 stars (22 votes)
• Carolina cock by Max Mann  CockUp Pumping Balls Cock HyCock  A paean to two of North Carolina's most famous sports stars. Added Nov 2003 2,779 words 28,441 views 4.7 stars (13 votes)
• Uncontrolled changes by blackjacket  Cock MuscUp Musc Nonc  After a hazy encounter with a strange man at the bar the night before, Andrew finds himself unable to stop the self-stimulation that’s making him grow. Added Jun 2014 Updated Jul 2014 2 parts 1,687 words 28,250 views 4.4 stars (37 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)
• 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)
• The four jocks by BRK  CockUp Cock XLimb Rep MuscUp Musc Tf Series M/M M/M/M/...  A game than asks really peculiar questions leads a group of four young jocks through a series of progressively more exciting transformations. Added Sep 2009 4,470 words 28,119 views 4.8 stars (10 votes)
• Greg and Jesse by BRK  CockUp Cock XCock XHead XArms XLeg XLimb XPec Rep Stack Bro Merg Weed t/t t/t/t  Greg and Jesse are already pretty close. But the addition of a little premium weed combined with a video chat session makes them even closer. Added Mar 2009 Updated Jan 2018 3 parts 6,991 words 28,086 views 4.6 stars (19 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)
• 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)
• 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)
• 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 27,714 views 4.6 stars (32 votes)
• 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)
• 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)
• A new world order by Kowalski  MuscUp Musc Bi Het  The archive was missing the bulk of this classic hetero muscle story, so I’ve restored the lost Parts for those who are interested. Added Mar 2004 Updated May 2016 28 parts 49,586 words 27,553 views 2.6 stars (7 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 27,539 views 4.9 stars (22 votes)
• Jake: hand-drawn giant by spacevlad  Cock Gut Musc SizeUp Infect  Drawing massive, muscle-hunk football stars seems like a safe enough hobby—but what if your drawing takes on a life of its own? Added Sep 2009 7 parts 11,792 words 27,488 views 4.7 stars (7 votes)
• Big time! by Tyblair  SizeDn   Added Jul 2002 3 parts 4,777 words 27,399 views 4.3 stars (9 votes)
• An app for that by BRK  CockUp Cock XCock XHead XArms XLimb Rep Musc App Retcon M/M  That funny new phone app makes it look like you have two of whatever the camera is pointed at, but there's more to the algorithm than trick photography. Added Nov 2011 2,178 words 27,253 views 4.3 stars (12 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)
• 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)
• Brent and Jax by BRK  CockUp Cock HyCock XCock Retcon Sugg X-Ray M/M  Jax comes back from vacation extremely jazzed about something that happened to him, leading to a very strange conversation with his buddy Brent about how all the guys on campus seem to be changing lately. Added Mar 2013 Updated Apr 2018 2 parts 8,234 words 27,017 views 4.6 stars (16 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)
• 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)
• 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)
• Acting out by Cris Kane  CockUp Cock MuscUp Musc  A straight actor preparing to audition for a gay role receives help getting into character from his gay friend and a couple of magic rings, but their mind-altering effects lead to unexpected outcomes for Quinn and Damon alike. Added Aug 2014 3 parts 24,612 words 26,835 views 4.5 stars (16 votes)
• Freshman dorm by OMGhi2U  CockUp Cock MuscUp Musc  Alex’s roommate seems hot enough to start with. And then his pecs start getting bigger. Added Sep 2010 4 parts 12,435 words 26,778 views
• Your wish is my command by Coolkid  MuscUp Musc SizeUp Het Genie   Added Feb 2013 1,210 words 26,776 views 2.4 stars (17 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 26,751 views 5.0 stars (11 votes)
• Ice ice baby by David  CockUp Cock HyCock Virgin  A well-hung rap star has an encounter with a couple of very devoted fans. Added May 1997 7 parts 24,275 words 26,659 views 4.2 stars (6 votes)
• Growing problems by Joushy  Cock MuscUp Musc   Added Mar 2012 2,821 words 26,571 views 3.8 stars (9 votes)
• Frat hunting by hyperboi  CockUp HyCock MuscUp Musc Sugg Inc Bro Twins  A pair of twins with the ability to alter themselves and the world around them have some fun tailoring one of the frats to meet their needs. Added Jul 2013 Updated Aug 2013 1,543 words 26,552 views 4.5 stars (17 votes)
• My wife’s lover by Comment  Cock   Added Apr 2003 3,721 words 26,522 views
• Big little rich boy by Richard Jasper  MuscUp Musc Taller SizeUp  Sometimes family drama makes you realize what matters—and who. Added May 2003 Updated Feb 2020 8 parts 7,077 words 26,478 views 4.6 stars (11 votes)
• Daemos island by Charles Westfall  CockUp Cock MuscUp Musc Libido SizeUp AgeDiff Inc Dad Twins Viol  A Polish scientist and explorer, Ferdinand Rolcek, discovers a hidden island where the lost secrets of the Daemos, alien pioneers of masculine beauty and sexuality far beyond anything known to humanity, are finally revealed to him; and what he learns makes him never want to leave again. Don’t worry, he won’t be lonely. Added Feb 2003 6 parts 14,639 words 26,377 views 3.2 stars (20 votes)
• Family values by FanTCMan  Cock 2Gay MuscUp Musc Hairier Inc Bro  Visiting his brothers in California leads to surprise after surprise, starting with their being much bigger than they had been before... Added Jul 2014 1,448 words 26,353 views 3.9 stars (30 votes)
• Werequeer by Anonymous  CockUp Balls HyCock HyCum Tf AgeDiff Inc Dad  A dad helps his son through his first transformation into a WereQueer. Added Apr 2004 2,426 words 26,349 views 4.9 stars (16 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)
• Support line by BRK  AlwHard CockUp Cock HyCock Self XCock XArms XLimb XTorso Rep Det App Infect Dialog  Customers interacting with the reps at the Metabods Support Line tend not to get the service they’re expecting—though it is always above and beyond. Added Feb 2012 Updated Mar 2021 4 parts 12,557 words 26,088 views 4.8 stars (13 votes)
• Project William by Also Known As  MuscUp Musc Handsomer  Horny teen Jackson encounters a guy who seems like he’s the god of sweet, muscular, carnal masculine hotness, and that means big changes for Jackson and his friends. Added Oct 2002 20 parts 64,637 words 26,076 views 4.6 stars (13 votes)
• Hugecock diary by Anonymous  CockUp Cock Self HyCum Virgin   Added Dec 2003 13 parts 10,948 words 26,031 views 4.9 stars (7 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 26,014 views 4.6 stars (14 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)
• Games by BRK  CockUp Cock XDig XAbs XCock Btaur 4Legs XLimb Rep SizeUp Nonc M/M M/M/M M/M/M/...  Dave totally forgot that when he got his new powers, and started granting all his buds three wishes, he let me keep the third one secret. And that secret wish just happens to be the ability to fuck around with Dave’s wishes. There was so much fun to be had with that particular capability. Added Sep 2003 2 parts 3,389 words 25,923 views 4.8 stars (13 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)
• Gym class hero by Tigerjay  Cock MuscUp Musc  Mason Hatchett, an overweight, out-of-shape, 18-year-old student, ends up in the senior athletics gym class against his will. Mr. Tyler, the athletics coordinator, has a... proposal... for alternative participation that Mason finds it very hard to pass up. All he has to do is test an experimental drug. What could go wrong with that? Added Aug 2009 Updated Jul 2017 2 parts 6,283 words 25,779 views 3.9 stars (12 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)
• Uncle Matt’s farm by StevePwrBear  MuscUp Musc SizeUp Hypno  Steve visits his uncle’s farm and discovers something unexpected about his heritage. Winner of Metabods 2005 Meta Story Contest. Added Jun 2005 3 parts 17,841 words 25,746 views 4.6 stars (8 votes)
• Alt-world by BRK  CockUp Cock HyCock XArms XLimb Rep Musc PSD SizeUp Inc Twins M/M  The alternate reality was constructed so the guys fell within broad parameters. Except they were a little skewed toward the exceptional. And something in the software seemed to like outliers... Added Jul 2011 2 parts 5,265 words 25,586 views 4.9 stars (14 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 25,580 views 5.0 stars (9 votes)
• King size by Max Mann  Cock MuscUp Musc  Jonathan, a young wizard, uncovers a poison plot against his friend, the beautiful king Gavin. Unfortunately, the potion to stop it may have some side-effects on the monarch. Added Jan 2013 5,656 words 25,509 views
• Too big by freakyhugemuscles  Immob MuscUp Musc   Added Mar 2005 2,477 words 25,477 views 4.4 stars (8 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
• A blessing or a curse by richard handy  CockUp Balls HyCock MusBr SizeUp  For the crime of desecration, forgotten Egyptian gods decide to punish Andy... though in a way he might also enjoy. Added May 2015 1,915 words 25,317 views 3.4 stars (25 votes)
• Rock and roll by BRK  CockUp HyCock XAbs XCock XHead XLimb Taller SizeUp Mcock Sugg  When you make a wish on a magic rock to be able to change people, make sure you make yourself aware of the effects. Added Sep 2010 3 parts 3,097 words 25,261 views 4.7 stars (16 votes)
• The dorm revised by RdyRoger  CockUp Cock MuscUp Musc SizeUp  New roommates Alex and Anthony meet and discover a shared love of muscle and a connection that has a profound affect on them both. Added Feb 2011 4 parts 18,483 words 25,253 views 4.6 stars (7 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)
• Demon brand jeans by alwaysmyway  Wings MuscUp Musc Inc Bro Hallow Fly  Shopping for creepy Halloween costumes at the last minute is probably not a good idea. Added Aug 2012 6,033 words 25,148 views 4.5 stars (21 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)
• Wanting more by Jacob Crowd  Balls   Added Oct 2011 1,512 words 25,016 views 2.7 stars (10 votes)
• InfiniPUMP by Never-the-less  NipC NipCum XCock Mcock   Added Jul 2012 12 parts 10,463 words 24,997 views
• 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)
• Morph cam by BRK  Cock 2Gay MuscUp Musc  A 3-D website that lets you morph digital hunks on cam is really, really realistic. Added May 2011 1,732 words 24,912 views 4.6 stars (7 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)
• Brother dear by MsclGuy  Musc Inc Bro   Added Jul 2002 766 words 24,803 views 3.9 stars (8 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 24,756 views 4.9 stars (30 votes)
• Failed revenge by GiantGuy  CockUp Balls Cock MuscUp Musc PSD SizeUp   Added May 2003 1,941 words 24,744 views
• 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)
• 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)
• 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)
• 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 24,604 views 4.7 stars (40 votes)
• Shrine of the giant cock by Sean  CockUp HyCock Bi Het   Added Sep 2012 3 parts 4,587 words 24,518 views
• Transformation in the boundary waters by Krisiar  CockUp HyCock XLimb MuscUp Musc SizeUp Fant   Added May 2011 1,742 words 24,457 views
• How I got my footlong cock by BRK  CockUp Cock  Just because that email looks like spam, that doesn’t mean it’s not for real. Added Jun 2004 2,663 words 24,411 views 4.6 stars (8 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)
• The curse of the pink thong by WIP Topping  CockDn Musc Tf Hairier Mind Series  Max makes homophobic comments in the locker room and gets cursed. Will he learn to embrace the havoc that the curse wreaks on his body? Added Sep 2016 6,790 words 24,046 views 4.3 stars (10 votes)
• Blood lust by muscl4life  CockUp Cock HyCock MuscUp Musc SizeUp Inc Twins Nonc Vamp Were Hallow  The vampire Drago plots his revenge against his twin brother, Draco, and Kevin, Danny, and Greg get caught in the middle. Added Nov 2013 Updated Dec 2013 3 parts 9,393 words 24,045 views 4.4 stars (8 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)
• Ultimate muscle by Ultra-Muscle  Cock MuscUp Musc AgeDiff Inc Dad  Philip gets injected with what he wants most—something that will make him a big muscle man like his dad. Added Dec 2013 1,418 words 24,023 views 3.6 stars (7 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)
• Delivery by BRK  CockUp Cock MuscUp Musc Taller SizeUp M/M  A pizza delivery guy thinks he’s hot shit—and he is. But he hasn’t met the guy who’s been getting hotter and hotter his whole life. Added Mar 2003 2,905 words 23,960 views 4.4 stars (8 votes)
• Admiring the changes by Josh Barrett  MuscUp Musc  After months of hardly any progress at the gym, Alex finds a strange stone that makes him into what he’s always wanted to be. Added Jun 2014 1,973 words 23,952 views 4.5 stars (20 votes)
• 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)
• Arthur, the young titan by TonnyGiant  Musc Giant SizeUp Viol Dom  This is the story of how I met Arthur, and how he became a giant, and how he dominated everything and everyone ... and how he won my heart in respect and worship. And today I can say, we love each other. Added Dec 2016 Updated Feb 2017 6 parts 12,165 words 23,871 views 4.4 stars (36 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)
• 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)
• 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)
• The cyclist by Corwin  CockUp Cock MuscUp Musc  That jogger Scott started noticing on his bike runs has been getting hotter and more muscled. After getting to know each another on the trail Mark decides to share his secret. Added Dec 2013 11 parts 29,802 words 23,658 views 4.8 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)
• 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 23,644 views 5.0 stars (12 votes)
• The cake by Orion  CockUp Balls HyCock MuscUp Musc Taller PSD SizeUp Hairier  Matt is an average college student, frustrated with his below average body. But that is unexpectedly about to change, thanks to a little bit of magic. Added Feb 2017 4,757 words 23,619 views 3.8 stars (6 votes)
• Four-legged Ivan by Josh Dugan  CockUp Cock XCock LegWh 4Legs Llegs XArms XLeg XLimb 6Legs Rep WFoot MuscUp Det SizeUp Mcock Cent Xmas Alcohol Series Series  Let’s just say that four-legged Ivan is… multitalented. And he likes to share his experiences with his best friend (and himself). Added Jul 2016 Updated Oct 2018 12 parts 15,004 words 23,494 views 4.7 stars (23 votes)
• Transforming roommate’s dick by CThotguy  CockUp Cock  Step 1: Slip a cake of cock-transforming soap into the shower stall just before your hunky roommate needs to rinse off. Step 2: Stand back and enjoy the show. Added Nov 2003 2,271 words 23,433 views 4.6 stars (7 votes)
• Jackpot by Max Mann  CockUp Cock 2Gay MuscUp Musc SizeUp  Winning the jackpot means something different at this resort hotel where all the guests and staff start to transform before Tracy’s eyes into impossibly sculpted and phenomenally hung dream men. Added Feb 2009 3,913 words 23,412 views 4.6 stars (8 votes)
• The engineer by Galpha567  NipC NipCum XCock Mcock Bond  A captive in a hidden lab is made to experience wonderful augmentations to his body by a phallically-obsessed engineer. Added Jan 2013 Updated Dec 2013 2 parts 7,147 words 23,355 views 4.7 stars (24 votes)
• 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)
• Prototype by FanTCMan  CockUp Cock MuscUp Musc Worship Grad Hairier  Rocky starts working out to distract attention from his embarrassing donkey dick, only to make himself a spectacle that way too. Once he hits college he catches the eye of student teacher Jake, who sees possibilities for Rocky... Added Jun 2005 12 parts 15,992 words 23,232 views 4.6 stars (8 votes)
• Al’s new toy by Altoid Lover  Musc Mind   Added Aug 2012 4 parts 2,395 words 23,218 views 3.6 stars (5 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)
• 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 23,179 views 4.7 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 23,165 views 5.0 stars (27 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)
• 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)
• 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)
• 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)
• Growth experiment by Anarchy A  CockUp Cock HyCum MuscUp Musc  Scrawny Edward awakens to find himself the subject of an experiment designed to help him grow a little bigger, except the procedure proves far more effective than anyone could have anticipated. Added Jun 2015 1,815 words 23,043 views 4.2 stars (19 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)
• Grow lamp 2: Peter principle by Dream Big  CockUp Cock Musc Taller HyPher Series  Peter Chang, now taller, thickly muscled, and prodigiously hung thanks to Jeremy and Tom’s impossible grow lamp, now must get used to the attention his new body draws… and the unexpected after-effects of his exposure to the lamp’s mysterious growth magic. Added Jul 2018 Updated Nov 2018 15 parts 23,683 words 22,980 views 4.5 stars (18 votes)
• Flexing out of clothes by Manning  MuscUp Musc   Added Jul 2002 1,254 words 22,891 views
• Cafe Darwin by Dreammaker  CockUp HyCock XLimb MuscUp Musc  A few short scenes set at a café where the drinks do more than just perk you up. Added Mar 2012 Updated Feb 2013 4 parts 1,754 words 22,878 views
• Doubling up by BRK  AlwHard XAbs XCock XHead XArms XLimb XPec XTorso Stack Inc Twins Merg M/M M/M/M M/M/M/...  All the dorm rooms in Bryce’s building are being combined with another, and everyone’s doubling up. What isn’t immediately apparent is that it isn’t the rooms that are being merged—it’s the roommates. Added Jun 2013 Updated May 2015 3 parts 7,007 words 22,838 views 4.8 stars (16 votes)
• Administrator by FanTCMan  CockUp Cock Dumber MuscUp Musc   Added Apr 2003 1,784 words 22,806 views 4.2 stars (9 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)
• Late bloomer by Jay Emm  Cock MuscUp Musc  Paul and Chet are trying to sort out the changes brought about by the growth gem, when a stranger appears to tell them about new and unexpected possibilities. Added May 2014 Updated Jul 2014 2 parts 5,900 words 22,744 views 4.7 stars (9 votes)
• Morphling by Apollo's Meat  CockUp HyCock HyCum MuscUp Musc Tf  A freshman college student takes home hot, freaky Seth, and later puzzles over what Seth called him: "morphling". Added Feb 2014 Updated Mar 2014 2 parts 3,693 words 22,635 views 4.8 stars (8 votes)
• Dig’s island by BRK  CockUp Cock XArms Wings MuscUp Musc Taller SizeUp Inc Bro Fly 19th Cent M/M/M/...  Shipwrecked on a remote island, four brothers grow up to be incredibly close—and that’s before they encounter a secret power on the island that transforms them each in different ways. Added Mar 2005 4 parts 3,757 words 22,575 views 4.3 stars (7 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)
• Walk to class by iciss  CockUp Cock PublicOrg 2Gay MuscUp Musc Handsomer Nonc  When you can grow guys as you pass until they can’t resist each other, it’s tough to hold back even if you’re running late. Added Mar 2009 2 parts 3,194 words 22,481 views 4.6 stars (14 votes)
• The four jocks continued by Josh Dugan  Cock XLimb Rep Series  This turned out to be one really great wish. Added Sep 2009 2,390 words 22,432 views
• Extremes by BRK  AlwHard HyCum NipCum XDig XAbs XCock XHead Llegs XArms XLeg XLimb XPec Stack Det M/M  Imagining yourself as being hotter, more hung, and possessed of extras sometimes is just a phase, but other times it can spiral to extremes. Added Feb 2012 Updated Oct 2018 2 parts 10,844 words 22,396 views 4.8 stars (14 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)
• 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)
• Tim’s adventure by WordShop  CockUp Cock HyCum MuscUp Musc Libido Grad SizeUp Hairier Virgin  Tim finds romance becomes a little more complicated when muscle growth and hypermasculity is involved. Added Jan 2018 Updated Feb 2018 5 parts 34,729 words 22,007 views 4.4 stars (14 votes)
• Ten ways to get big and strong by BRK  CockUp Cock MuscUp Musc SizeUp Inc Bro  Cam and his band-geek buddies have a good laugh at a silly new poster in the gym listing ten ways to get big and strong, but when they sneak in after school and start writing in their own suggestions, things start to get a little weird. Added Jun 2016 Updated Sep 2016 4 parts 13,105 words 21,994 views 4.7 stars (18 votes)
• A whole new Dave by MuslLuvr  CockUp Balls Cock HyCum MuscUp Musc PSD SizeUp Hairier   Added Jul 2009 1,336 words 21,927 views
• 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)
• The curse by muscl4life  Cock 2Gay MuscUp Musc Tf   Added May 2014 2,443 words 21,811 views 4.3 stars (7 votes)
• Craterville by BRK  CockUp Cock XCock XLimb Rep Musc Tf SizeUp M/M M/M/M  When everyone in town has some kind of power that half the time they aren’t even aware of, the guy whose power is to tell with everyone else’s power is might feel like he’s got the short end of the stick. Sometimes, though, there are ways to make it work for you. Added Mar 2009 3,363 words 21,796 views 4.7 stars (13 votes)
• Big by Joe Bell  MuscUp Musc   Added Jul 2002 923 words 21,767 views
• The construction worker by Peterbilt  CockUp Cock Musc AgeDiff Virgin Inc Dad  A troubled young hardhat named Jordan is helped through a series of self-discoveries by Joe, a father-figure who comes to mean more and more to Jordan. Added Sep 2015 22,148 words 21,759 views 4.8 stars (12 votes)
• Boys will be boys by FanTCMan  MuscUp Musc   Added Aug 2002 1,823 words 21,748 views 4.0 stars (13 votes)
• Old buds, new bods by CubGuySC  CockUp Cock MuscUp Musc 2Animal Hairier Fur  Ryan recounts a life-changing episode (hair, teeth and growth included). Added Jul 2006 5,188 words 21,725 views 4.9 stars (15 votes)
• Becoming the adult store hunk by LeMapp  Suit Swap   Added Apr 2003 1,173 words 21,716 views 4.4 stars (7 votes)
• A new life by ChangeRedhawk  Cock Musc SizeDn SizeUp Fant  Arik and Ana, a pair of fae, are assigned to “reclaim” Jason, who is unaware of his heritage. Added Mar 2006 2,067 words 21,670 views 4.1 stars (9 votes)
• New model by BRK  CockUp Cock HyCock Sugg  New roommates Jacob and Barry reveal their secret desires to each other—which, thanks to a certain suggestion ability, creates a few wild changes. Added Dec 2012 2,243 words 21,668 views 3.8 stars (6 votes)
• Genetics by joushy123  CockUp Balls Cock HyCock MuscUp Musc   Added Dec 2012 2,066 words 21,654 views 4.7 stars (7 votes)
• Zack by Mlock  CockUp Balls Cock CumInf MuscUp Musc Libido Tf PSD SizeUp  Zack and his boyfriend try out a Brazilian-made concoction. Added Sep 2009 1,385 words 21,652 views 3.3 stars (12 votes)
• 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)
• A Christmas miracle by Unknown  MuscUp Musc Xmas  What’s Santa packing as a Christmas gift for scrawny Tim? In Tim’s dreams, it’s muscle, for starters. Added Jun 2002 2 parts 2,160 words 21,624 views 4.8 stars (6 votes)
• The seed of Aiden by cirquedublue  CockUp Cock HyCum MuscUp Musc Taller SizeUp  Overweight college freshman gets a helping hand (and pills—and lotion) from his hot roommate. Added Feb 2007 2,706 words 21,597 views
• Clothes make the man by Frank Easky  MuscUp Musc Taller   Added Jul 2002 12,291 words 21,546 views 4.5 stars (6 votes)
• No reason boner by Egi  CockUp Self Grad  While slogging through high school, Quinn becomes inconvenienced by something that happens to every teenager. However, this problem is much more serious for him, and maybe isn’t actually a problem at all. Added Jun 2017 Updated Mar 2018 8 parts 13,863 words 21,493 views 4.9 stars (20 votes)
• Muscle evolution by muscl4life  Cock CumInf MuscUp Musc Dom   Added May 2014 2,521 words 21,492 views
• 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)
• A new coffee by Linkin  MuscUp Musc SizeUp  Jake comes home to the sight of Mike's amazing transformation. Mike wants the same thing for Jake, but then gets more than he bargained for. Added Feb 2013 Updated Jan 2017 2 parts 6,039 words 21,366 views 3.6 stars (5 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)
• 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)
• Changes in Bigby Heights by NBCK99  AlwHard CockUp Cock Self XAbs XCock Btaur 4Legs XArms XLimb MuscUp Musc Taller Retcon Infect  Alex Stevens has always been shy, being the only boytaur in Bigby Heights, but Jesse helps bring him out of his shell. But after their first encounter, reality seems to shift. Added Jun 2010 Updated Sep 2010 3 parts 5,173 words 21,257 views 4.7 stars (20 votes)
• Cycle one by Absman420  Cock Musc Lycra  Sam is a writer whose hobby is bodybuilding. His new gym is owned by a guy named Coach, who goes the extra mile to make sure “his boys” get the gains they need. Added Jan 2013 8 parts 8,889 words 21,219 views 4.8 stars (9 votes)
• Boston by Marzart69  Cock MuscUp Musc SizeUp   Added Jul 2002 8,358 words 21,208 views
• 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 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)
• Biggest by Also Known As  AlwHard Cock MuscUp Musc   Added Jan 2014 2 parts 9,229 words 21,074 views 4.5 stars (6 votes)
• Training Tony by BRK  CockUp Cock 2Cock HyCock XCock 2Gay Musc  A magnetically sexy young Italian man is about to enter a new life as a firefighter, except he and his devoted friends are sidetracked by the disappearance of his friend Frankie. Added May 2014 2 parts 8,640 words 21,052 views 4.4 stars (25 votes)
• Power geek by muscl4life  AlwHard HyStr MuscUp Musc SizeUp Witch   Added Mar 2014 2 parts 6,467 words 21,044 views 3.3 stars (7 votes)
• Sugar packets by RdyRoger  CockUp Cock MuscUp Musc   Added Jul 2002 4 parts 11,543 words 21,043 views 5.0 stars (5 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 21,011 views 5.0 stars (6 votes)
• Ray of light by dymondbolt  CockUp Cock HyCock Musc Tf Hypno  Ray’s chance encounter at a new club with a sexy-voiced man just before the magic show becomes even more interesting when he turns out to be the magician. And he might need a volunteer from the audience. Added Jan 2012 6,666 words 21,006 views 4.8 stars (5 votes)
• The pills by Hexxian  CockUp Balls Cock Self HyCum MuscUp Musc SizeUp  Even when you’ve accepted that you’re small and won’t get any bigger, you might still try the pills from the random email spam. What could happen? Added Jan 2013 2,927 words 20,958 views 4.5 stars (8 votes)
• 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)
• 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)
• 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 touch by TylerGermany  CockUp Cock MuscUp Musc Nano  Nick is dosed with nanobots that allow him to grow and shrink others with just a touch. Added Mar 2014 Updated Apr 2014 2 parts 10,780 words 20,891 views
• 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)
• 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)
• The pills left behind by RdyRoger  CockUp Cock MuscUp Musc   Added Feb 2011 2 parts 6,631 words 20,785 views
• 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)
• Growing guy by Massiveboy  MuscUp Musc   Added Jul 2002 2,179 words 20,773 views 3.9 stars (9 votes)
• The cock-off by Armie Lingo  CockUp Balls Cock HyCock HyCum Musc   Added Oct 2005 3 parts 5,295 words 20,763 views 5.0 stars (6 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 20,750 views 4.8 stars (25 votes)
• 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)
• Baxter prep by BRK  MuscUp Musc SizeUp M/M t/t  A candid interview with the man who admitted dosing the stars of his reality TV show, Baxter Prep, with serums that altered their bodies—without their knowledge. Added May 2011 2,040 words 20,693 views 4.1 stars (15 votes)
• Onion Hill Manor by William Allen  CockUp Cock HyCock XArms XLeg XLimb 2Gay Immob MuscUp Musc Handsomer Tf Giant SizeDn SizeUp  Unremarkable twenty-something gets a new job working at a strange mansion alongside a team of beefy, muscle hunks. Added Oct 2017 Updated Dec 2017 5 parts 25,642 words 20,664 views 4.9 stars (17 votes)
• Castaway by Nikison  Balls Cock HyCock HyCum  Having fallen overboard, a man washes ashore on an island. The natives make a big impression on him. Added Sep 2011 2 parts 3,776 words 20,650 views 3.7 stars (7 votes)
• Big Frank by Unknown  MuscUp Musc   Added Jul 2002 4 parts 3,544 words 20,626 views 4.2 stars (6 votes)
• The lawnmower boy by Anonymous  CockUp Cock MuscUp Musc AgeDiff   Added Jul 2006 6,172 words 20,622 views 4.7 stars (7 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)
• Michael and jim by Your Name Here  CockUp Cock MuscUp Musc Hairier Inc Bro   Added Jul 2006 1,317 words 20,544 views 2.9 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)
• Cocksville by Erik Maskot  CockUp Cock HyCock SizeUp  A young man with a 2-incher desperately seeks help. But the medicine he starts taking doesn't seem to be doing anything... (another case of exceeding the recommended dosage!) Added Oct 2002 4 parts 4,959 words 20,530 views 4.3 stars (7 votes)
• 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)
• Growing pains by Anonymous  CockUp MuscUp Musc Infect   Added Jul 2002 4 parts 4,674 words 20,516 views 4.4 stars (5 votes)
• Can’t help growing you by BRK  CockUp Cock Sugg M/M  Texting with his unseen lover is always hot and heavy, especially the way he takes his descriptions so literally. Added Dec 2012 1,309 words 20,505 views 4.0 stars (11 votes)
• The greenhouse effect by Godzilla  CockUp Balls Cock Plants  While being tutored in horticulture by Tenji, college runner Aaron mistakes a vial for his iced tea… Added Feb 2006 2,398 words 20,492 views
• Student body president by BRK  CockUp Cock Self XCock MuscUp Musc Str SizeUp Witch  Being a warlock at school can be a pain—especially if everybody knows. Added Sep 2004 2,906 words 20,480 views
• The reunion by Aphon  CockUp Balls Cock HyCock MuscUp Musc SizeUp Hairier Nonc  Sam meets up with his high school crush who ends up having more in plan for him than he thought... how big is too big? Added Apr 2017 2 parts 3,342 words 20,474 views 4.5 stars (12 votes)
• I knew I had to stop by BRK  CockUp Cock Self  That lotion that made my cock grow felt really good, and it’s really hard to stop using it—especially when it gets big enough to suck. Added Jan 2006 1,428 words 20,441 views 4.7 stars (15 votes)
• Examination by BRK  Mcock M/M  A hunky new patient at the clinic is a little shy when it comes to what happens to his tongue when he gets turned on. Added Mar 2011 Updated Jun 2018 3 parts 7,153 words 20,394 views 4.6 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)
• Dragon’s Horde: Waking up long by STrRedWolf  XDig XAbs XHead XArms XLimb XPec Rep Stack Herm Str Nano Merg Fur Scaly Dragon Alcohol Series  A new series of adventures involving the Dragon’s Horde club, as anthro folks of all sorts and situations—judges, cops, mechanics, and more—find their way to the club and its transforming drinks. Added Aug 2013 Updated Oct 2014 7 parts 19,808 words 20,323 views 3.6 stars (7 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)
• Amplifications by Also Known As  Cock MuscUp Musc SizeUp Series   Added Jan 2014 5 parts 22,602 words 20,289 views
• The cock by BRK  Cock 2Cock M/M  Waking up after sex with Steve is a little disorienting. He’s lying on top of his lover from the night before—because he’s now Steve’s cock. Added Oct 1997 2 parts 3,263 words 20,289 views 4.6 stars (7 votes)
• Middle Eastern muscle worship by TitMorpher  MusBr MuscUp Musc   Added Dec 2013 2,611 words 20,256 views
• The challenge by BRK  CockUp Cock MuscUp Musc M/M M/M/M/...  A crop of fraternity pledges are given a unique challenge: to create the perfect man out of a set of randomly assigned abilities. Added Sep 2010 2,956 words 20,255 views 4.9 stars (11 votes)
• Nick by Anonymous  Cock Musc Inc Bro   Added Apr 2003 1,846 words 20,241 views
• 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)
• Stupid cupid by baboonfan  CockUp Cock Wings Mental 2Gay MuscUp Musc Scent BellyUp Tf SizeUp Hairier Nonc Bond Vamp Were Fant  A flat tire causes Jerry to miss a job interview. Fortunately Eros, the love god, is hiring, as he eventually discovers when he knocks on a strange door for help. Added Sep 2009 8 parts 12,571 words 20,216 views 4.0 stars (5 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)
• Friendship by muscl4life  Cock MuscUp Musc SizeUp   Added Nov 2014 4,143 words 20,202 views 4.5 stars (6 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)
• Sucker by pornwright  CockUp CockDn Cock Mental MuscUp MuscDn Musc Tf SizeDn SizeUp Bi Nonc Rape  Toulouse has a great body and a magnificent cock, but with each enthusiastic blowjob from Henry, the transfer of cum makes Lou less, and Henry more. Added Feb 2009 7 parts 4,551 words 20,144 views
• 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)
• The boost by Cris Kane  Dumber 2Gay MuscUp Musc  The mysterious boost in a health club’s smoothies causes fast and dramatic changes. Added Jul 2015 2 parts 12,889 words 20,109 views 4.9 stars (8 votes)
• Professor Magnus’s transformation class by BRK  CockUp Cock XCock XArms XLeg XLimb 3Legs MuscUp Musc Taller SizeUp Witch Series  The hot students in Professor Magnus's transformation class know that working with him will be life-changing—not to mention body-changing. Added Dec 2010 Updated Jun 2018 2 parts 7,180 words 20,105 views 4.8 stars (6 votes)
• The smell of lust by Seth Peterson  Cock 2Gay MuscUp Libido Tf SizeUp Hairier Nonc HyPher Fur Scaly Dragon M/M  I did a thing!! Okay, I accidentally bathed myself in extremely potent, gay-causing, transformative pheromone juice. But it’s all good, right?? Added Jun 2016 11,127 words 20,100 views 4.2 stars (13 votes)
• Casey’s machine by FanTCMan  MuscUp Musc   Added Aug 2002 4,566 words 20,058 views 4.9 stars (7 votes)
• Journal of a scientist by Shawn D. Stewart  CockUp HyCock MuscUp Musc  Dr. Mike Hays documents the effects of the nanotechnology he designed to make himself bigger and stronger. Added Jun 2011 2 parts 3,235 words 20,036 views 4.0 stars (5 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)

• The lamp by Neltharion5  CockUp Balls Cock MuscUp Musc Genie  An archaeologist, an oil lamp (with requisite genie), and three wishes. Added Apr 2003 6,399 words 19,988 views 4.8 stars (5 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)
• I wish by TJ  CockUp Balls MuscUp Musc Genie   Added Jul 2002 1,407 words 19,970 views 3.6 stars (5 votes)
• 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)
• 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 19,948 views 5.0 stars (6 votes)
• Manscapes by FanTCMan  MuscUp Musc Hairier   Added Jul 2002 7 parts 14,338 words 19,936 views 4.9 stars (7 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)
• Wishing well by Ziel  Giant SizeUp  Unhappy with his small, slim body, Ken tosses a coin in a wishing well and wishes he were bigger. He ends up becoming bigger, all right—much, much, much bigger. Added Jul 2015 2,854 words 19,881 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)
• The perfect man by Seth Peterson  MuscUp Musc FootUp SizeUp Hairier Fur  Finding out what your friend thinks is hot can lead to some amazing and unexpected results. Added Feb 2016 1,907 words 19,870 views
• 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 19,864 views 5.0 stars (7 votes)
• Muscle service station by Josef Howard  Balls Cock MuscUp Musc SizeUp Fur   Added Jul 2002 4,771 words 19,832 views 5.0 stars (7 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 19,831 views 5.0 stars (9 votes)
• The suitcase by J Reynolds  2Straight Mental 2Gay Swap Images   Added Jul 2006 4 parts 14,491 words 19,720 views 4.6 stars (8 votes)
• College days by MuscleMike23  CockUp Cock XAbs MuscUp Musc  A mishap in chem lab leads to Mike’s size dreams coming true. Added Mar 2005 2 parts 1,974 words 19,688 views
• For lovers of huge cocks by Unknown  Cock HyCum   Added Mar 2003 3,060 words 19,660 views 4.4 stars (13 votes)
• 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)
• Hold your tongue by Squeeshka and UnknownGentrifier  CockUp Cock NipC HyCum NipCum XCock Mcock   Added Jun 2012 7 parts 11,048 words 19,604 views 5.0 stars (6 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 19,598 views 5.0 stars (9 votes)
• Brother’s closet by Josh Dugan  Llegs XLeg XLimb Rep Det Inc Bro  A handsome athletic older brother offers somewhat more than expected. Added May 2002 962 words 19,534 views 4.0 stars (5 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)
• The doctor’s delight by FanTCMan  MuscUp Musc Hairier  Tyler's new doctor has a plan for his growth. Added Aug 2002 5 parts 6,439 words 19,506 views
• Cuuuurse! by Ziel  Cock XCock XArms XLimb MuscUp Musc TongueGr Scaly Naga  Boyfriends Alex and Reuben are subjected to a curse that grows them into long-tongued double-cocked muscular naga. Ask them if they mind. Added Oct 2014 7,618 words 19,469 views 4.6 stars (12 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
• Revamped by Double-U  CockUp Cock MuscUp Musc SizeUp Hairier  Two new friends, an athlete and a nerd, find themselves testing out a mysterious piece of technology that has the ability to upgrade bodies into masculine perfection. Added Aug 2016 5,087 words 19,422 views 4.4 stars (31 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)
• 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 19,398 views 5.0 stars (5 votes)
• Alien tormentors by James Fourlegs  Cock XCock XArms XLeg XLimb Rep MuscUp Musc Alien  Unseen aliens juice the daylights out of their captives. Added Dec 2004 1,004 words 19,383 views 4.3 stars (6 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)
• The bear’s cub by CurlyJin  Cock HyCock Musc PSD Virgin  A giant man calling himself Bear takes in a young man just entering a nearby college. Added Jul 2016 Updated Aug 2016 3 parts 11,777 words 19,300 views 3.9 stars (9 votes)
• Third eye growth by think.big  Cock MuscUp Musc  Daniel has some fun using his paranormal gift to remotely "push" an underendowed bodybuilder into a form they both find much more exciting. Added Jun 2015 Updated Oct 2015 3 parts 4,195 words 19,231 views
• The trainer by Also Known As  AlwHard CockUp Cock MuscUp Musc SizeUp   Added Jan 2014 7 parts 22,349 words 19,188 views 5.0 stars (7 votes)
• Juiced by Ziel  CockDn MuscUp Musc Nonc Series  Kent’s roommate gets him to try out a hot new supplement. The muscles quickly stack on, but they come with a price. Added May 2016 4,177 words 19,168 views
• Wishmaker by BRK  Cock XCock MuscUp Musc SizeUp  Sure, making other guys’ wishes come true is great. But the powers that be don’t seem to realize what a drag it is for everyone else’s fantasies to come true except your own. Added Jan 2013 2 parts 3,879 words 19,151 views
• Titan by Also Known As  MuscUp Musc Series  I had purchased time with Augments before but this was my first time with a Grower. Added Oct 2002 Updated Jan 2012 8 parts 16,182 words 19,099 views
• Muscle for master by Mad Dog  Balls Cock HyCum MuscUp Musc Dom Hum  It’s time for huge muscle man Randy to please his master… Added Aug 2009 2,769 words 19,087 views
• Randy’s morph by FanTCMan  CockUp Cock MuscUp Musc Handsomer   Added Jul 2002 4,199 words 19,066 views 4.4 stars (7 votes)
• The hike by JayPat  MuscUp Musc SizeUp  When a bunch of teens go out into the woods by the lake for a long hiking trip, it becomes a growth experience for them (and not in the figurative sense). Added Sep 2012 6 parts 19,182 words 18,997 views 4.8 stars (9 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)
• The night he came by Charles Westfall  CockUp HyCock Self HyCum MuscUp Musc SizeUp Nano Alien  Thomas encounters alien visitors with equipment even bigger than his. Added Jul 2002 7,839 words 18,981 views
• Smitch swaps by smitch69  Suit Nonc Swap Share  Six short tales about assuming a different identity. Added Apr 2006 6 parts 2,814 words 18,971 views
• The exam by BRAD  Cock Musc Taller SizeUp Dialog  Steve visits the doctor for help dealing with his constantly increasing height, though his physician seems more interested in the side effects relating to Steve’s sensitivity and sexual arousal. Added Jan 2012 1,406 words 18,967 views
• By design by paul shearon  Cock MuscUp Musc   Added Nov 2011 2 parts 5,563 words 18,949 views 4.6 stars (7 votes)
• Scott by VladBath  MuscUp Musc Worship   Added Jul 2002 12 parts 18,243 words 18,928 views 4.0 stars (6 votes)
• They came from outer space by WordShop  CockUp Balls Cock MuscUp Musc Hairier Plants Inc Bro  Playing with meteors can have strange side effects. Two young brothers living near a military base find themselves changing from exposure to meteorite dust. Added Oct 2017 Updated Nov 2017 4 parts 12,642 words 18,923 views 4.9 stars (20 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 18,908 views 5.0 stars (8 votes)
• A devil of a deal by Unknown  MuscUp Musc   Added Jun 2002 1,461 words 18,904 views
• 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 18,873 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  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 Feb 2019 7 parts 31,239 words 18,873 views 5.0 stars (10 votes)
• Extreme reality game by Libra  CockUp Cock NipC XCock HairDecr  Jacob downloads a game that allows him to change reality. He’s particularly intrigued by the variety of options relating to his junk. Added Aug 2011 3 parts 3,946 words 18,871 views 4.0 stars (6 votes)
• Morphed muscle glute freaks by TitMorpher  MuscUp Musc  Some bodybuilding fans go for the extreme glutes, and these muscleheads are willing to deliver. Added Jan 2013 4 parts 3,463 words 18,850 views
• Changing clothes by Sean Innicioni  XLimb Str Tf   Added May 2011 2,838 words 18,832 views
• Dana gets wired by FanTCMan  MuscUp Musc Voice   Added Jul 2002 3 parts 11,472 words 18,814 views 4.1 stars (7 votes)
• Cop boots by CatLuvr  Swap   Added Jun 2003 2,235 words 18,769 views 4.8 stars (5 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 18,752 views 4.5 stars (26 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)
• Patient zero by BRK  Cock SizeUp  The changes started with Andy. Added Dec 2010 1,844 words 18,631 views 4.6 stars (7 votes)
• The priapus club by Max Mann  CockUp Cock HyCock   Added May 2002 3,169 words 18,624 views 4.6 stars (7 votes)
• School for studs by Josef Howard  HyCum 2Gay MuscUp Musc Virgin  Eldon agrees to hand himself over the so-called School for Studs for three years, knowing that the sex they’ll arrange for him with the sexy well-to-do will be worth the commitment. What he doesn’t expect is the expect the other Studs will have on him. Added Feb 2017 Updated Mar 2017 8 parts 17,252 words 18,591 views 4.9 stars (12 votes)
• More than advertised by LookinToGrow  CockUp Cock MuscUp Musc PSD SizeUp  Two men meet at the gym one day, and both hope to become even bigger and stronger then they once were. Added Jan 2017 Updated Nov 2018 4 parts 4,732 words 18,574 views 4.9 stars (7 votes)
• Big project by muscl4life  Cock MuscUp Musc SizeUp   Added Nov 2013 Updated Dec 2013 5,273 words 18,572 views
• Surgery by Clearlyhere  Balls Cock 2Gay MuscUp  Derrick submits to a procedure that may solve his … little problem. Added Jan 2012 3,258 words 18,473 views 4.0 stars (6 votes)
• Thrift shop vitamins by RdyRoger  CockUp Cock MuscUp Musc  Those cheap vitamins I found at the thrift store changed my life. I can’t go back… and I’m not sure I’d want to. Added Nov 2013 5,924 words 18,467 views 4.6 stars (10 votes)
• Gym story by Kisho Nakamura  CockUp Cock CumInf MuscUp Musc HyAnus  Alex decides to join a gym. One of the trainers there provides him with something that may aid in his development. Added Jul 2009 4,464 words 18,431 views
• 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 18,380 views 5.0 stars (10 votes)
• Huginex by Unknown  Cock MuscUp Musc   Added Jul 2002 2,426 words 18,367 views
• 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)
• 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 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)
• Drink by Also Known As  Cock Self MuscUp Musc  A certain bar offers drinks with a secret and special kind of potency… just ask for “Rex”. Added Jan 2014 3 parts 18,838 words 18,300 views 4.9 stars (8 votes)
• The madagascar charm by Reuben  CockUp Cock MuscUp Musc SizeDn   Added Dec 2002 5 parts 10,797 words 18,300 views 4.8 stars (9 votes)
• 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)
• A mutual desire by Clearlyhere  Cock Musc Swap  Aaron and Frank each want what the other has, but Frank's desire is a little more literal. Added Sep 2012 1,130 words 18,242 views 4.5 stars (8 votes)
• Gym fantasy by Richard Jasper  MuscUp Musc  A few chance encounters at the gym build a connection between a pair of hot, growing guys. Added Feb 2009 5 parts 3,472 words 18,216 views 3.8 stars (6 votes)
• Huge loads by Ziel  CockUp Balls Cock HyCock HyCum  It seems like dirty clothes aren’t the only huge loads at this laundromat. Added May 2017 5,282 words 18,208 views 4.5 stars (6 votes)
• Alien implants (revised) by WordShop  CockUp Cock MuscUp Musc Hairier Symb  Three twenty-year-old military brats have a close encounter that leaves behind unexpected surprises for them all. How do three young guys deal with something that they cannot even begin to explain or understand? Not to mention the very strange dreams… Added Nov 2017 2 parts 3,079 words 18,061 views 3.6 stars (14 votes)
• 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
• Last resort by Also Known As  CockUp Cock MuscUp Musc SizeUp  Our narrator finds himself whisked off to a mysterious resort where everything seems perfectly designed to cater to his every fantasy—especially the all-male staff. But reality keeps changing around him, and he has no idea how or why. Added Jan 2014 8 parts 27,579 words 18,019 views 4.5 stars (13 votes)
• 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
• Triggrow by Diablo11d  CockUp Balls Cock Self HyCum MuscUp Musc SizeUp   Added Oct 2005 2 parts 4,908 words 18,003 views
• My man by hyperboi  Cock 2Gay Musc Mind  Straight jock Brian is okay with his muscle queen roommate, Kevin, affably resisting Kevin’s playful advances. Kevin, however, has some ideas about how to give Brian a change of attitude. Added Mar 2016 6,077 words 17,894 views 4.9 stars (8 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 17,877 views 4.8 stars (33 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)
• My friend Lenny by Reuben  Cock Taller Giant PSD SizeUp  Lenny keeps getting taller, transforming his life over and over again as he grows and grows. Added May 2003 10 parts 15,876 words 17,844 views
• Stuff in the cellar by Charles Westfall  CockUp Cock HyCum MuscUp Musc PointyEars SizeUp  Richard is already good-looking and abnormally hung when he disc