Metabods - Stories tagged Muscle Growth - Metabods Erotic Story Archive

Latest update (27 June): • “A marriage of equals” • “The blue smoothie” • “Induced transformation: a brief history” • “Who wants to be a boytaur?”, Part 2 • plus lots more!
Latest post (11 July): Saturday Flashback: July 2016
Next update: 8 August. Submissions welcome.

Flashbacks only through July; next new-stories update will be 8 August. See the news post for more info.

Muscle Growth

When your muscles are growing bigger. Especially relevant if the character doesn’t have much musculature to start with. This can involve muscles being grown conventionally (i.e., hard work at the gym), but usually there’s something more going on that gives the growth a push.

Compare Muscle, which can be just about having big muscles, and Size Growth, which involves getting bigger overall.

Kinds of “Muscle Growth” stories include:

Immobility

Other tags that also fall under the category “Muscle/Strength”: Hyper Strength, Muscle Breast, Muscle Theft, Muscles.

Stories found: 823.

Something missing? We’re always looking to improve the way our stories are tagged. If you know of a story that should be added to this page, please go to the story page and use the tag suggestion feature—the link is directly under the list of tags.

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Newest Chapters: Muscle Growthtap bar to showtap bar to hide

1. A fucking god, Part 2 by Jerkoffcentral Bro CGrow Balls Cock HMusc MGrow Musc Jonathan struggles with a need to get off with a hot guy in person, on the one hand, and the dangers of exposing his freakish body, on the other.

2020-06-27

2. Cursed compression top, Part 3 by Rurik Suit MGrow Symb Tf The compression material finds its latest prey. 2020-06-27

3. Colossal Clothing, Part 2 by QuasarSun Belly CGrow Fat Hair Taller MGrow PSD Grow Spencer heads home from his strange encounter with Alan, Colossal Clothing’s mysterious and hot owner. He has gotten a new t-shirt to bring home, its magic waiting to grant great and fascinating changes to Spencer’s body.

2020-06-27

4. The merger, Part 1 by Richard Jasper CGrow Cock Merg MGrow Musc When wannabe musclebear Rik Farnsworth and sexy twink Ryan Steinmetz finally get together, something surprising ensues!

2020-06-27

5. Muscle blind, Part 1 by Richard Jasper Grad Cock MGrow Musc 2Gay Brandon, Ryan, Bobby, and Roger are college freshmen, sharing a suite. Roger is growing like a rocket but Bobby doesn’t seem to notice, so Brandon and Ryan devise an experiment to open Bobby’s eyes.

2020-06-27

6. The perfect fit, Part 1 by TheSizeKing CGrow Taller Cock HyCock Cum MGrow Musc When someone can grow you to whatever size you want, make sure they know how big you want to be. Otherwise things can go a little overboard.

2020-06-27

7. Matt and his dad, Part 1 by Meddler Incs Dad Cock Hypno MGrow Musc Nonc 2Gay Symb Series When Matt comes home to visit his dad, he is forced into being part of The Crew. 2020-06-27

8. Beta Logan and his big brother, Part 1 by Eric Aaldersen Bro CGrow Grad Balls Cock Cum Pher Strong MGrow Musc Supn Logan has difficulty controlling himself as his older brother Brian becomes a bigger and bigger stud.

2020-06-27

9. Hank has three choices, Parts 1-4 by Clearlyhere CGrow CShr Dom Cock MusBr MGrow Shr 2Gay It starts with Drake lusting after his roommate Hank. The real choice lands with Hank. He has three choices on how to use his toy. Unfortunately, it can exceed recommended usage.

2020-06-27

10. Induced transformation: a brief history, Part 1 by BRK AgeDiff AgeDown Bro CGrow Dad Cock HyCock Cum Infect MGrow Nonc Rep Retcon A father explains to his son that back in his day, they didn’t have any of these fancy-schmancy apps with built-in retcon. Back then, if you changed someone, they changed, and everyone had to just suck it up and deal with it.

2020-06-27

11. The blue smoothie, Part 1 by BRK CGrow Fly Balls Strong Mental MGrow Musc Super Series Yuri, a personal trainer, is already having a rushed and stressful day when he meets his first client, a young nurse who looks like he’s never lifted so much as a paper clip. On top of that, the banana he grabbed from the stash at the gym’s juice bar to make his morning protein shake was blue for some reason.

2020-06-27

12. A marriage of equals, Part 1 by BRK Btaur Cent 4Legs XCock XLeg XLimb MGrow Tf Tobias claims his family won’t let him marry Nick unless he converts to being a boytaur like Tobias. Nick doesn’t quite believe him, but being a boytaur does have its appeal…

2020-06-27

13. One hot summer, Parts 12-14 by BRK Bro Weed CGrow Hair Grad Cock Mental MGrow Musc Nonc Twins Eddie and Brandon come back from the beach to find the twins have made dinner for them all. Eddie should be wondering what they’re up to, but he’s too caught up in his deal with Bran: no clothes for Bran, in exchange for lovemaking Bran would never forget.

2020-06-13

14. Be careful what you wish for, Part 5 by Tereshky AgeDown CGrow Balls Cock Immob MGrow Musc Nonc 2Gay A timid man gets a chance to score a big boost in confidence but is it enough or too much? Meanwhile, it’s clear that Jack is up to something, but what?

2020-06-13

15. Cursed compression top, Part 2 by Rurik Suit MGrow Symb Tf The compression material begins to show its true purpose. 2020-06-13

16. Little for big, Parts 1-4 by Richard Jasper MGrow Musc Do big muscle guys like Brian get into little guys? When the little guy has a giant cock like Roger’s, the answer is hell yeah they do!

2020-06-13

17. Made for each other, Part 1 by Richard Jasper Xmas CGrow Hallow Cock MGrow Musc 2Gay Tksg Blake and Chad, two recent college graduates, meet at Muscles in Motion, the only gym in their small town in the Catskills. Thrown together as workout partners by the sex-on-a-stick straight boy personal trainer who doesn’t have any interest in clients beyond their bust size, Blake and Chad soon they really are Made for Each Other!

2020-06-13

18. Made for each other, Parts 2-9 by Richard Jasper Xmas CGrow Hallow Cock MGrow Musc 2Gay Tksg 2020-06-13

19. Manzeum, Parts 1-3 by Richard Jasper AgeDown CGrow Cock MGrow Musc Roger Funderburk is really pretty damned hunky for a man in his late 50s. But he’s also dealing with the health issues that tend to crop up in late middle age. Then his endocrinologist puts him on a new medication for his type 2 diabetes, one with some unusual side-effects. Or, in Roger’s case, spectacular ones!

2020-06-13

20. Manzeum, Part 4 by Richard Jasper AgeDown CGrow Cock MGrow Musc Roger Funderburk is really pretty damned hunky for a man in his late 50s. But he’s also dealing with the health issues that tend to crop up in late middle age. Then his endocrinologist puts him on a new medication for his type 2 d

diabetes, one with some unusual side-effects. Or, in Roger’s case, spectacular ones!

2020-06-13

21. Manzeum, Parts 5-9 by Richard Jasper AgeDown CGrow Cock MGrow Musc Roger Funderburk is really pretty damned hunky for a man in his late 50s. But he’s also dealing with the health issues that tend to crop up in late middle age. Then his endocrinologist puts him on a new medication for his type 2 diabetes, one with some unusual side-effects. Or, in Roger’s case, spectacular ones!

2020-06-13

22. Me and Mr. K, Part 1 by Richard Jasper AgeDiff MGrow Musc Roger Jolson, the world’s strongest teen, is excited about meeting Ben Kazakian, the World’s Strongest Man, a friend of Roger’s hunky coach, Stan Telatopolous. Their meeting does not go as any of them expected.

2020-06-13

23. Muscle milk, Part 1 by Alakazam1988 CGrow Taller Balls Cock HyCock Cum Immob MusBr MGrow NipC NipCum PSD Grow That new muscle drink in the gym vending machine does wonders for your pecs, though maybe not in the way you expect.

2020-06-13

24. Uncle C, Part 1 by Portowulf AgeDiff AgeUp AgeDown CGrow Virgin MGrow 2Gay Charles finds a trinket at a small store in the city that brings unexpected changes. 2020-06-13

25. The CVN link, Parts 1-2 by BRK CGrow Taller Cock XAbs MGrow Musc Retcon Grow Mike is applying for a new job. Everything’s going great, his potential new boss is a dreamboat, he’s perfect for the position. There’s just one hitch: they need his CVNs. His confusion turns to shock when he finds out from a friend just what the “N” stands for…

2020-06-13

26. Flashmob, Parts 11-12 by BRK Taller Cock XCock MGrow Musc Rep While Zane corrals his Keiths and the Coles in Hawaii, Jake finally fixes Joe’s mess—mostly. 2020-05-30

27. Seeing stars, Part 2 by OneLuckyGuy89 CGrow 2Straight Hair Taller Balls Cock HyCock Infect Merg MGrow Gut Nonc Grow Super Twins Ace and his group, the Hets, are out to turn all gays into straight frat boys. Can the Zodiac boys conquer them?

2020-05-30

Most Viewed: Muscle Growthtap bar to showtap bar to hide

1. Justin (the bigger the better) by Giant Worshipper (15 parts) CGrow Giant Cock HyCock Strong MGrow Musc Grow 2Gay A young man starts growing, and growing. He finds he likes it a lot. Added Nov 2009 • 99.1K words

291,492 views

2. Max’s wish by Bulge101 (11 parts) CGrow Cock Infect MGrow Musc Grow 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 • 24.6K words

242,868 views

3. Above average by Ziel (28 parts) CGrow Cock HyCock Cum HMusc MGrow Musc 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 • 130.4K words

196,317 views

4. Spice by Mr. X and Mad Dog (50 parts) AgeDiff CGrow Dad Hair Grad Cock Scent MGrow Musc Grow 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 • 221.0K words

163,374 views

5. Jason’s big problem by Joven (49 parts) Bro CGrow Taller Balls Cock HyCock Cum MGrow Musc Grow 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 • 114.7K words

138,322 views

6. All good things by Anon Amon (100 parts) Bro CGrow CumInf Balls Cock HyCock Cum Immob Infect MGrow Musc NipCum 2Gay Twins 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 Aug 2019 • 115.4K words

132,605 views

7. Puberty is a bitch by Lover Boy 2 (11 parts) CGrow Grad Cock HyCock MGrow Grow Added Sep 2009 • 14.6K words
127,442 views

8. Mind and body by BRK (16 parts) Hard Bro CGrow Taller Cock Hypno Mind XCock MGrow Musc Grow 2Gay Sugg 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 • 66.2K words

117,956 views

9. Bigger issues by muscl4life (6 parts) Hard CGrow Cock HyCock XAbs MGrow Musc Grow 2Gay 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 • 47.0K words

107,882 views

10. Empire by LenZelig (38 parts) AgeDiff Alien Beast Bi Bro CGrow Dad Virgin Taller Het Cock Mind MGrow Musc Nonc Self Slave Share Grow Space 2Gay Tksg Twins 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 • 347.2K words

105,054 views

11. My son, the superstud by Max Mann AgeDiff Dad MGrow Musc 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 • 3.8K words

98,901 views

12. Huge changes: Book one by RdyRoger CGrow Hallow Cock MGrow Musc Grow 2Gay 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 • 5.9K words

98,817 views

13. My roommate by LenZelig (9 parts) AgeDiff Bi Bro CGrow Dom Dad Virgin Het Cock Mind MGrow Musc Series Bill’s hot adventures with his irresistible sex-god of a roommate, Andy Wang. Added Jul 2002 • Updated Oct 2019 • 113.0K words

94,034 views

14. The dudes by BRK (7 parts) Hard CGrow Cock MGrow Musc Retcon Self Grow Sugg 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 • 15.9K words

93,477 views

15. Teen growth by Chamelion123 MGrow Musc Added Jul 2002 • 7.4K words
93,037 views

16. Baby brother by Shawn D. Stewart Bro CGrow Taller MGrow Musc "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 • 2.9K words

92,521 views

17. Morphed muscle tit freaks by TitMorpher (3 parts) MusBr MGrow Musc NipCum Added Jan 2011 • Updated Jan 2012 • 7.9K words
90,351 views
18. Muscle milk tit freaks by TitMorpher (9 parts) MusBr MGrow Musc NipCum Images Added Sep 2011 • Updated Jun 2012 • 27.1K words
89,495 views

19. Changing Nick by BRK (16 parts) Hard Cock Merg XAbs XArm XCock XHead XLeg XLimb XPec MGrow Musc Nonc Rep Retcon Grow Stack 2Gay 3Legs 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 • 59.1K words

86,093 views

20. Forced growth by hyperboi (5 parts) CGrow Cock HyCock MGrow Musc Nonc Added Oct 2013 • 6.4K words
85,673 views

21. The brothers by FanTCMan (8 parts) Addict Hard Bro CGrow Hair Grad Cock MGrow Musc 2Gay Cory Callahan and his three sibs participate in a secret program, resulting in more muscles, body hair, cock size, and horniness. Added Mar 2003 • 22.6K words

81,805 views

22. Lumberjacked by Krisiar (4 parts) Addict CGrow Hair Cock HyCock XAbs MGrow Musc NipCum Self 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 • 12.1K words

74,528 views

23. More than expected by LennoxBear (5 parts) CGrow Virgin Hair Balls Cock Infect MusBr MGrow Musc NipCum Nonc Added Jul 2002 • 20.4K words
72,757 views
24. Becoming the ultimate man by musclestory Hair MGrow Musc Added Aug 2003 • 4.6K words
69,390 views
25. True muscle god by mf81 (3 parts) CGrow Viol Balls Cock MGrow Musc Added Mar 2006 • Updated Feb 2011 • 7.7K words
69,085 views

26. Oh man by BRK (5 parts) CGrow Cock XArm XCock XLimb MGrow Musc Rep Retcon Self 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 • 13.3K words

66,411 views

27. Supermen by Also Known As (9 parts) CGrow Virgin Fly HyCock Pher XCock MGrow Musc 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 • Updated Sep 2018 • 76.8K words

65,627 views

28. The salt by RdyRoger (9 parts) Bro CGrow Taller Grad Cock MGrow Musc Grow 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 • 35.8K words

64,280 views

29. The hulk pill by JayPat (5 parts) Cock Infect MGrow Musc Nano Grow The only thing weirder than your buddy Boz offering you a “hulk pill” would be for it to actually work. Added Oct 2012 • 29.5K words

63,179 views

30. Brad’s big change by FanTCMan (5 parts) MGrow Musc Added Dec 2002 • 16.5K words
61,184 views

Most Viewed Last 7 Days: Muscle Growthtap bar to showtap bar to hide

1. Best birthday ever by TheSizeKing (5 parts) CGrow Balls Cock HyCock MGrow Self Zac is already above average. But when his birthday comes around, he gets everything he wishes for and then some. Added Feb 2020 • 14.9K words

1,894 views

2. Morphogenic steroids by RdyRoger (4 parts) CGrow Hair Taller Grad Balls Cock Infect MGrow Musc PSD Self Grow Rod’s dad is working on a new technology that makes small things bigger and big things huge, with incredible implications for food supplies and beyond—only it only lasts for five hours. Rod figures being bigger for five hours… that would be pretty awesome. Added Oct 2019 • 15.3K words

1,203 views

3. Custom tailoring by BRK (2 parts) MGrow Musc Grow Danny takes on a modeling gig that involves a little custom tailoring, and not just of the clothes he’ll be wearing for the shoot. Added Sep 2016 • 6.7K words

946 views

4. The perfect fit by TheSizeKing CGrow Taller Cock HyCock Cum MGrow Musc When someone can grow you to whatever size you want, make sure they know how big you want to be. Otherwise things can go a little overboard. Added Jun 2020 • 3.2K words

902 views

5. A fucking god by Jerkoffcentral (2 parts) Bro CGrow Balls Cock HMusc MGrow Musc 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 • 5.3K words

852 views

6. Summer research by spacevlad (12 parts) Viol Dumb Hair Giant Cock MGrow Musc PSD Grow 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 • 28.5K words

788 views

7. The professor of reality by RdyRoger (2 parts) CGrow Cock MGrow Musc PSD Grow Max’s friend’s boss, the Professor, has been experimenting with making changes to reality, but when he tries to solve Max’s problems with his undersized equipment things get a little out of hand. Added Dec 2017 • 9.5K words

709 views

8. Beta Logan and his big brother by Eric Aaldersen Bro CGrow Grad Balls Cock Cum Pher Strong MGrow Musc Supn Logan has difficulty controlling himself as his older brother Brian becomes a bigger and bigger stud. Added Jun 2020 • 6.4K words

670 views

9. Jason’s big problem by Joven (49 parts) Bro CGrow Taller Balls Cock HyCock Cum MGrow Musc Grow 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 • 114.7K words

643 views

10. Skin tight by Dream Big (22 parts) AI CGrow Taller Grad Balls Cock HyCock Pher HyTongue MGrow Musc Nano PSD Self Grow 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 Sep 2019 • 36.9K words

595 views

11. Justin (the bigger the better) by Giant Worshipper (15 parts) CGrow Giant Cock HyCock Strong MGrow Musc Grow 2Gay A young man starts growing, and growing. He finds he likes it a lot. Added Nov 2009 • 99.1K words

536 views

12. The Muscles Tech Hotel by TonnyGiant (6 parts) Giant Cock MGrow Musc PSD Grow Deciding to take a vacation, Luke happens across a listing for a hotel where the employees and the guests all seem to be gorgeous muscle giants. He registers immediately, wanting to be among men like that, but secretly yearning even more desperately to be just like them. Added Nov 2017 • Updated Dec 2017 • 22.7K words

502 views

13. The blue smoothie by BRK CGrow Fly Balls Strong Mental MGrow Musc Super Series Yuri, a personal trainer, is already having a rushed and stressful day when he meets his first client, a young nurse who looks like he’s never lifted so much as a paper clip. On top of that, the banana he grabbed from the stash at the gym’s juice bar to make his morning protein shake was blue for some reason. Added Jun 2020 • 3.2K words

445 views

14. Transform: New Blood by Also Known As (47 parts) Hard CGrow Virgin Fly Cock Infect Scent XCock MGrow Musc Self Grow 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 • 188.4K words

404 views

15. Hank has three choices by Clearlyhere (4 parts) CGrow CShr Dom Cock MusBr MGrow Shr 2Gay It starts with Drake lusting after his roommate Hank. The real choice lands with Hank. He has three choices on how to use his toy. Unfortunately, it can exceed recommended usage. Added Jun 2020 • 4.7K words

398 views

16. The prince and the glove by Josef Howard MGrow Musc Charlie is visited by the embodiment of his own erotic fantasies. Added Jul 2002 • 5.4K words
397 views

17. Public relations by Maximilian (18 parts) CGrow Viol Hair Taller Giant Cock HyCock Cum MGrow Gut Musc PSD Bond Shr Grow 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 • 125.0K words

388 views

18. Above average by Ziel (28 parts) CGrow Cock HyCock Cum HMusc MGrow Musc 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 • 130.4K words

380 views

19. Transform: House calls by Also Known As Cock XCock MGrow Musc Grow Series Series Newly Transformed young men revel in their new bodies and the undreamt-of pleasures awaiting them. Added Jan 2014 • 6.8K words

376 views

20. All good things by Anon Amon (100 parts) Bro CGrow CumInf Balls Cock HyCock Cum Immob Infect MGrow Musc NipCum 2Gay Twins 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 Aug 2019 • 115.4K words

370 views

21. Colossal Clothing by QuasarSun (2 parts) Belly CGrow Fat Hair Taller MGrow PSD Grow Spencer is just your average post-college graduate, down on his luck and working a dead-end job when he runs across a magical clothing store that gives him a new job, a new perspective, and a lot more. Added May 2020 • Updated Jun 2020 • 3.7K words

364 views

22. Matt and his dad by Meddler Incs Dad Cock Hypno MGrow Musc Nonc 2Gay Symb Series When Matt comes home to visit his dad, he is forced into being part of The Crew. Added Jun 2020 • 3.3K words

356 views

23. Transform: Muscle City by Also Known As (21 parts) Hard CGrow Cock Infect XCock MGrow Musc Grow 2Gay 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 • 120.0K words

337 views

24. Tank the bouncer by spacevlad (18 parts) Viol Fat Giant Scent MGrow Gut Musc Nonc PSD Rape Grow 2Gay 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 • 35.0K words

325 views

25. Induced transformation: a brief history by BRK AgeDiff AgeDown Bro CGrow Dad Cock HyCock Cum Infect MGrow Nonc Rep Retcon A father explains to his son that back in his day, they didn’t have any of these fancy-schmancy apps with built-in retcon. Back then, if you changed someone, they changed, and everyone had to just suck it up and deal with it. Added Jun 2020 • 2.2K words

322 views

26. Max’s wish by Bulge101 (11 parts) CGrow Cock Infect MGrow Musc Grow 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 • 24.6K words

296 views

27. Cursed compression top by Rurik (3 parts) Suit MGrow Symb Tf A cursed compression top will transform its wearer beyond his wildest dreams. Added May 2020 • Updated Jun 2020 • 3.1K words

284 views

28. Chuck, the size thief by spacevlad (16 parts) Absorb Viol Fat Giant MGrow Gut MTheft Musc Nonc PSD Grow Chuck, a middling-sized construction worker who wishes he were bigger, finds a way to grow huge. Added Jun 2017 • Updated Dec 2017 • 42.1K words

254 views

29. Bull’s strength by muscl4life (28 parts) AgeDiff Hard Beast CGrow Viol Dad Fly Taller Balls Cock HyCock Infect XAbs XCock MGrow Musc PSD Grow Tf 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 • 88.4K words

242 views

30. Spice by Mr. X and Mad Dog (50 parts) AgeDiff CGrow Dad Hair Grad Cock Scent MGrow Musc Grow 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 • 221.0K words

239 views

Highest Rated: Muscle Growthtap bar to showtap bar to hide

1. grUV by quickquezzed CGrow Cock HyCock MGrow Musc Self Grow 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 • 5.9K words

29,536 views

2. The brothers by FanTCMan (8 parts) Addict Hard Bro CGrow Hair Grad Cock MGrow Musc 2Gay Cory Callahan and his three sibs participate in a secret program, resulting in more muscles, body hair, cock size, and horniness. Added Mar 2003 • 22.6K words

81,805 views

3. Mind and body by BRK (16 parts) Hard Bro CGrow Taller Cock Hypno Mind XCock MGrow Musc Grow 2Gay Sugg 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 • 66.2K words

117,956 views

4. Alpha House by NBCK99 (3 parts) CGrow Cock Pher MGrow Musc 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 • 11.9K words

46,975 views

5. All good things by Anon Amon (100 parts) Bro CGrow CumInf Balls Cock HyCock Cum Immob Infect MGrow Musc NipCum 2Gay Twins 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 Aug 2019 • 115.4K words

132,605 views

6. Jason’s big problem by Joven (49 parts) Bro CGrow Taller Balls Cock HyCock Cum MGrow Musc Grow 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 • 114.7K words

138,322 views

7. My roommate by LenZelig (9 parts) AgeDiff Bi Bro CGrow Dom Dad Virgin Het Cock Mind MGrow Musc Series Bill’s hot adventures with his irresistible sex-god of a roommate, Andy Wang. Added Jul 2002 • Updated Oct 2019 • 113.0K words

94,034 views

8. Centurion of light by Ravine Mountain (12 parts) CGrow Demons Cock HyCock Cum XAbs MGrow Musc NipC NipCum Grow Twins 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 • 38.2K words

45,912 views

9. Toy story by LenZelig (2 parts) AgeDiff Andr Dad MGrow Musc Space Twins 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 • 6.9K words

21,741 views

10. Max’s wish by Bulge101 (11 parts) CGrow Cock Infect MGrow Musc Grow 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 • 24.6K words

242,868 views

11. Bottom mega-alfa by Jerkoffcentral (8 parts) CGrow Dom Hair Cock MGrow Musc Nonc Grow 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 • 21.5K words

55,576 views

12. Magnetic magic by Squidy (6 parts) CGrow Cock MGrow Musc Josh discovers his new roommate, Jack, has a powerful effect on him—especially his cock. Added Dec 2014 • Updated Sep 2016 • 13.2K words

41,185 views

13. True muscle god by mf81 (3 parts) CGrow Viol Balls Cock MGrow Musc Added Mar 2006 • Updated Feb 2011 • 7.7K words
69,085 views

14. The revisualizer by BRK (3 parts) Hard CGrow Hair Cock HyCock MGrow Musc NipC NipCum Nonc Self Grow 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 • 10.5K words

29,547 views

15. Flashmob by BRK (12 parts) Taller Cock XCock MGrow Musc Rep 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 • 50.4K words

27,397 views

16. Spice by Mr. X and Mad Dog (50 parts) AgeDiff CGrow Dad Hair Grad Cock Scent MGrow Musc Grow 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 • 221.0K words

163,374 views

17. Tiger troubles by Meddler Incs (2 parts) Fur CGrow Cock MGrow Musc 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 • 5.8K words

21,151 views

18. Best birthday ever by TheSizeKing (5 parts) CGrow Balls Cock HyCock MGrow Self Zac is already above average. But when his birthday comes around, he gets everything he wishes for and then some. Added Feb 2020 • 14.9K words

11,200 views

19. Empire by LenZelig (38 parts) AgeDiff Alien Beast Bi Bro CGrow Dad Virgin Taller Het Cock Mind MGrow Musc Nonc Self Slave Share Grow Space 2Gay Tksg Twins 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 • 347.2K words

105,054 views

20. Public relations by Maximilian (18 parts) CGrow Viol Hair Taller Giant Cock HyCock Cum MGrow Gut Musc PSD Bond Shr Grow 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 • 125.0K words

48,304 views

21. Not just imagination by DarkDjin (2 parts) AgeDiff CGrow Dad Cock MGrow Musc Sugg 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 • 10.9K words

29,895 views

22. Fortitude by BRK (3 parts) CGrow Cock MGrow Musc Grow Space 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 • 9.0K words

30,829 views

23. Grow lamp by Dream Big (10 parts) CGrow Taller Cock HyCock MGrow Musc Self Grow 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 • 14.0K words

23,338 views

24. They came from outer space by WordShop (4 parts) Bro CGrow Hair Balls Cock MGrow Musc 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 • 12.6K words

16,677 views

25. Hey, buddy by Dream Big (9 parts) CGrow Grad Cock MGrow Musc Grow Tf Ben’s high school crush, Charlie, resurfaces in his life after a mysterious incident at sea left him with a strange tattoo and a propensity for slow, inexplicable growth. Added Oct 2019 • Updated May 2020 • 11.1K words

11,293 views

26. From the files of the Magic Misuse Office by BRK (4 parts) CGrow Cock Merg XArm XCock XHead XLimb MGrow Rep SocMed 2Gay Tf Twins High-ranking magilegal investigator Liam O’Brien reports on a YouTube video in which twin college students have an illicitly magical effect on anyone watching. Added Sep 2017 • Updated Jul 2018 • 13.9K words

10,188 views

27. Sean goes to prison by Joven (17 parts) CGrow Balls Cock MGrow Nonc Bond Grow 2Gay 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 • 25.3K words

30,691 views

28. Second puberty by JayPat (15 parts) Bi CGrow Viol Cock Pher MGrow Musc Grow 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 • 91.5K words

50,785 views

29. Walker by BRK CGrow Cock XArm XCock XLimb MGrow Musc When you have a student who’s cursed with being irresistibly sexy and literally can’t wear shirts (because they evaporate off of him), you should probably just ignore him. Assuming that’s possible. Which? It isn’t. Added Nov 2013 • 2.8K words

11,501 views

30. Old buds, new bods by CubGuySC Fur MGrow Musc Added Jul 2006 • 5.2K words
20,213 views

Longest: Muscle Growthtap bar to showtap bar to hide

1. Empire by LenZelig (38 parts) AgeDiff Alien Beast Bi Bro CGrow Dad Virgin Taller Het Cock Mind MGrow Musc Nonc Self Slave Share Grow Space 2Gay Tksg Twins 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 • 347.2K words

105,054 views

2. Spice by Mr. X and Mad Dog (50 parts) AgeDiff CGrow Dad Hair Grad Cock Scent MGrow Musc Grow 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 • 221.0K words

163,374 views

3. Transform: New Blood by Also Known As (47 parts) Hard CGrow Virgin Fly Cock Infect Scent XCock MGrow Musc Self Grow 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 • 188.4K words

28,415 views

4. Transform by Also Known As (35 parts) CGrow Fly Cock Pher Infect XCock MGrow Musc Series The sequel to Supermen. Added Oct 2002 • Updated Sep 2018 • 131.9K words

38,505 views

5. Above average by Ziel (28 parts) CGrow Cock HyCock Cum HMusc MGrow Musc 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 • 130.4K words

196,317 views

6. Side effects 2000 by Braun1 and Z (31 parts) Hard CGrow Cock HyCock Infect MGrow Musc Self Grow Mike and Jan begin an odyssey of muscle, growth, transformation, sex, and love. Added Jul 2002 • Updated Sep 2018 • 126.7K words

26,267 views

7. Public relations by Maximilian (18 parts) CGrow Viol Hair Taller Giant Cock HyCock Cum MGrow Gut Musc PSD Bond Shr Grow 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 • 125.0K words

48,304 views

8. Transform: Muscle City by Also Known As (21 parts) Hard CGrow Cock Infect XCock MGrow Musc Grow 2Gay 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 • 120.0K words

16,810 views

9. All good things by Anon Amon (100 parts) Bro CGrow CumInf Balls Cock HyCock Cum Immob Infect MGrow Musc NipCum 2Gay Twins 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 Aug 2019 • 115.4K words

132,605 views

10. Jason’s big problem by Joven (49 parts) Bro CGrow Taller Balls Cock HyCock Cum MGrow Musc Grow 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 • 114.7K words

138,322 views

11. My roommate by LenZelig (9 parts) AgeDiff Bi Bro CGrow Dom Dad Virgin Het Cock Mind MGrow Musc Series Bill’s hot adventures with his irresistible sex-god of a roommate, Andy Wang. Added Jul 2002 • Updated Oct 2019 • 113.0K words

94,034 views

12. Big is better by XH4M (32 parts) Demons Virgin Cock Hypno MGrow Musc NipC Pete and Sam experience epic growth, unexpected adventures, and sweet romance. Added Oct 2003 • 111.5K words

59,570 views

13. Seducers by Also Known As (31 parts) CGrow Fly Cock HyCock Pher XCock MGrow Musc Series The sequel to Supermen and Transform. Added Aug 2003 • Updated Sep 2018 • 108.0K words

36,302 views

14. Mariposa honeymoon: A six-pack story by Cris Kane (19 parts) Belly CGrow CShr Dumb Hair Cock Mental MGrow Musc Race Series Their flamboyant best-man Pierce gives strait-laced newlyweds Derek and Charles a mysterious six-pack to liven up their Cancun honeymoon. Added Dec 2018 • Updated Feb 2019 • 105.8K words

9,803 views

15. Justin (the bigger the better) by Giant Worshipper (15 parts) CGrow Giant Cock HyCock Strong MGrow Musc Grow 2Gay A young man starts growing, and growing. He finds he likes it a lot. Added Nov 2009 • 99.1K words

291,492 views

16. Augmentations by Also Known As (18 parts) CGrow Cock Scent MGrow Musc Grow 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 • 98.8K words

29,951 views

17. Second puberty by JayPat (15 parts) Bi CGrow Viol Cock Pher MGrow Musc Grow 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 • 91.5K words

50,785 views

18. Bull’s strength by muscl4life (28 parts) AgeDiff Hard Beast CGrow Viol Dad Fly Taller Balls Cock HyCock Infect XAbs XCock MGrow Musc PSD Grow Tf 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 • 88.4K words

44,510 views

19. Transform: The college years by Also Known As (12 parts) CGrow Fly Cock Infect Scent XCock MGrow Musc Grow Series Series The sexy teens affected by the Transform ability wreak even more havoc at college with their amazing and irresistible growth-at-will double-hung dream bods. Added Jan 2014 • 80.1K words

13,774 views

20. The orphanage by JayPat (12 parts) Viol Cock Strong MGrow Musc Grow 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 • 78.2K words

25,631 views

21. Supermen by Also Known As (9 parts) CGrow Virgin Fly HyCock Pher XCock MGrow Musc 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 • Updated Sep 2018 • 76.8K words

65,627 views

22. Hard body by Also Known As (14 parts) CGrow Dom Balls Cock MGrow Musc Grow Tf 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 • 75.3K words

56,493 views

23. My roommate: The next generation by LenZelig (5 parts) AgeDiff Bi Bro CGrow Dad Het Cock MGrow Musc Series The folks from My Roommate are raising a new crop of offspring. They are not Andy Wang or his son, but they are not your normal youngsters either. Bill Foster Junior tells the story of how they grew into manhood. Added Nov 2019 • Updated Apr 2020 • 74.0K words

7,025 views

24. Love/shift by BRK (11 parts) AgeDiff Dad Hair Grad Scent MGrow Musc Grow Supn Tf Wbear Series 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 • 68.1K words

28,756 views

25. Mind and body by BRK (16 parts) Hard Bro CGrow Taller Cock Hypno Mind XCock MGrow Musc Grow 2Gay Sugg 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 • 66.2K words

117,956 views

26. Project William by Also Known As (20 parts) MGrow Musc 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 • 64.6K words

22,805 views

27. Changing Nick by BRK (16 parts) Hard Cock Merg XAbs XArm XCock XHead XLeg XLimb XPec MGrow Musc Nonc Rep Retcon Grow Stack 2Gay 3Legs 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 • 59.1K words

86,093 views

28. Growth school by Writ Bro (12 parts) CGrow Dom Cock MusBr MGrow Musc Bond Slave 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 • 55.8K words

38,930 views

29. Side effects by Braun1 (7 parts) Hard CGrow Cock MGrow Musc Grow Added Feb 1997 • Updated Sep 2018 • 55.6K words
45,054 views

30. Project Cerulean MX by The Pecman (17 parts) Cock MGrow Musc Shr Grow Tf 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 • 54.1K words

31,053 views

Complete story list for Muscle Growth:

1

10th anniversary by Richard Jasper CGrow Cock MGrow Musc George and Joseph reflect on when they met and what it was like growing into horse-cocked super studs. Added Jan 2020 • 1.3K words

6,201 views

1313 Raven Lane (revised) by WordShop (4 parts) CGrow Hair Ghost Hallow Cock MGrow Musc Nonc Grow 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 • 11.0K words

20,341 views

1313 raven lane (a halloween story) by WordShop (4 parts) MGrow Musc Supn Added Nov 2002 • 11.1K words
18,170 views

A

A.I. by Corwin (11 parts) AI Andr Cock Mind MGrow Musc Bond Tim’s homemade A.I. software decides to help him get huge. Added Dec 2013 • 30.6K words
32,700 views

Above average by Ziel (28 parts) CGrow Cock HyCock Cum HMusc MGrow Musc 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 • 130.4K words

196,317 views

The accidental wizard by nolanspice (2 parts) AgeDown MGrow Musc PSD Rep Grow Tf Added Jan 2006 • 2.9K words
16,113 views

Acting out by Cris Kane (3 parts) CGrow Cock MGrow 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 • 24.6K words

23,149 views

Ad man by FanTCMan CGrow Hair Cock HyCock Cum Infect MGrow Musc Nonc 2Gay Added Dec 2003 • 8.6K words
55,163 views

Adam’s first growth spurt by MDS Bro Giant Cock MGrow Musc Grow 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 • 2.4K words

30,266 views

Addiction by Hatman Cock MGrow PSD Added May 2010 • 1.9K words
20,402 views
Administrator by FanTCMan CGrow Dumb Cock MGrow Musc Added Apr 2003 • 1.8K words
19,874 views

Admiring the changes by Josh Barrett MGrow 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 • 2.0K words

21,021 views

The adventures of Rex by Richard Jasper (6 parts) CGrow Demons Fant Cock MGrow Musc Ogres Race Grow Tf Series MLB Player Rex Chastain is dragooned into the service of a wizard but a magical transformation goes somewhat awry. Added Feb 2020 • 3.9K words

3,504 views

Aftermath by Richard Jasper MGrow Musc Recently widowed, Roger decides to join the gym and get big. Added Jan 2020 • Updated Feb 2020 • 3.9K words
3,200 views

Against protocol by BRK CGrow Dig Cock Cum XArm XLimb MGrow The mods they give to MetaMorph’s in-house scientists to beta-test are supposed to wear off after two weeks, but Jackson’s mods are inexplicably persistent… and they’re starting to pile up. Added Nov 2019 • 2.4K words

3,420 views

Ah! my god by Josh Arima Infl MGrow Musc Added Jun 2005 • 4.3K words
25,138 views

Airport muscle by Richard Jasper (5 parts) CGrow Cock MGrow Musc Shift Tf When you have a really long layover, having a sleeping cube comes in handy! Added Jan 2020 • Updated Feb 2020 • 5.9K words

4,318 views

Aisle 13 by Richard Jasper (7 parts) MGrow Musc A random encounter at the grocery store prompts big Jake to recruit a passel of wannabe muscleboys. Added Jan 2020 • Updated Feb 2020 • 8.3K words

2,872 views

Alex by Jcry123 Cock MGrow Musc A young guy decides to try out a gift from a random stranger that might making him bigger. Added Nov 2011 • 1.5K words
28,500 views

Alex in Wonderland by Anarchy A (3 parts) CGrow Balls Cock HyCock Cum HMusc MGrow Musc Shr Grow 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 • 6.2K words

33,239 views

Alien implants (revised) by WordShop (2 parts) CGrow Hair Cock MGrow Musc 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 • 3.1K words

15,034 views

Alien tormentors by James Fourlegs Alien Cock XArm XCock XLeg XLimb MGrow Musc Rep Unseen aliens juice the daylights out of their captives. Added Dec 2004 • 1.0K words

16,913 views

All good things by Anon Amon (100 parts) Bro CGrow CumInf Balls Cock HyCock Cum Immob Infect MGrow Musc NipCum 2Gay Twins 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 Aug 2019 • 115.4K words

132,605 views

All or nothing by Double-U MGrow Musc Grow Take a step into Allan Rader’s thoughts and explore a strange new casino that hasn’t opened up to the public yet. Will Allan get some BIG returns? Added Sep 2016 • 2.2K words

9,803 views

All your wildest dreams by FloralSpaded (2 parts) CGrow Cock Infect MGrow Musc When Walker has his hot friend Joe over for the night, things get out of hand and all of Walker’s wildest dreams come true. Added Jun 2018 • 1.5K words

10,562 views

Alpha by CharitysSongbird Fur CGrow Dom Taller Balls Cock HyCock MGrow Musc Self Grow Tf 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 • 14.3K words

22,719 views

Alpha House by NBCK99 (3 parts) CGrow Cock Pher MGrow Musc 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 • 11.9K words

46,975 views

Alpha Luke grows his circle by Eric Aaldersen Bro Balls Cock MGrow Musc Supn Series Now fully aware of his alphahood, Luke breeds some more betas hoping to make Brian an alpha like him. Luke and Mike finally bond as they were meant to. Added Mar 2020 • 9.0K words

3,883 views

Alpha Luke passes on the lore by Eric Aaldersen CGrow Grad Balls Cock MGrow Musc Supn Series Luke and Brian’s story finally reaches its climax and afterwards things get positively mystical. Added May 2020 • 4.9K words

1,728 views

Alpha male by Josef Howard (5 parts) MGrow 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 • 15.1K words

30,978 views

Alpha master god king by MaleHypnoDomination and Mr. GreyMan Dom Mind MGrow Musc An unassuming househusband accidentally becomes the God-King of the world. Added May 2016 • 7.6K words

17,008 views

Alpha Mike and his alpha bro by Eric Aaldersen Bro CGrow Grad Balls Cock MGrow Musc Supn Series Meet Alpha Mike, Luke’s older brother, on the day that he discovers that his little bro is an alpha, too! Added Mar 2020 • 5.4K words

4,009 views

Alpha product series by Chet Boner (18 parts) AgeDiff Bro CGrow Dad Balls Cum MGrow Musc NipCum 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 • 22.7K words

54,202 views

The Alpha by Ziel Fur Hair Cock 2Anim MGrow Musc Nonc Tf 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 • 4.1K words

14,253 views

Altered by Dream Big (5 parts) CGrow Hair Taller Cock 2Anim Pher MGrow Musc Nonc Bond Grow 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 May 2020 • 9.5K words

10,773 views

Amplifications by Also Known As (5 parts) Cock MGrow Musc Grow Series Added Jan 2014 • 22.6K words
18,011 views

And then he came by Teen Hulk (2 parts) CGrow Virgin Cock Cum Infect MGrow Musc Self David's dream is interrupted … but only until his next visit to the gym. Added May 2002 • 7.4K words

32,481 views

Andy finds Cockr gives and takes away by Clearlyhere (5 parts) CGrow CShr Dom Cock MusBr MGrow Musc 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 • 14.0K words

22,734 views

Angelo and Adrian by WordShop (8 parts) CGrow Grad Pher Infect MGrow Musc 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 • 42.9K words

18,667 views

Another nerd story by Sithspawn (2 parts) CGrow Taller Cock Strong MGrow Musc Nano Grow Ollie is your typical nerd who asks his neighbour for help dealing with the local bully. Tom offers some advice that leads to an encounter he'll never forget. Added Apr 2020 • Updated May 2020 • 9.1K words

5,723 views

Anything to grow by Big Bull Trainer Dumb Immob MGrow Musc Grow Tf 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 • 7.8K words

28,566 views

The apartment by BRK CGrow Taller Cock Mental MGrow Retcon Sometimes what you need in a new apartment has more to do with what’s missing in your life. Added Apr 2020 • 3.4K words

4,212 views

An app for the ages by Seth Peterson Fem CGrow Dumb Hair Taller Cock MusBr MGrow Musc 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 • 3.1K words

14,646 views

The application by SuperWaffle (8 parts) Fur MGrow Musc Grow 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 • 44.5K words

34,789 views

Are you sure by Dream Big (5 parts) Bi CGrow Taller Het Balls Cock Cum MGrow Musc Race Self Grow Suddenly awash with money, Bill takes the plunge and follows the stories of secretly augmented men and women to a remote lab where they promise to fix everything he doesn’t like about his body. Added Nov 2019 • 6.2K words

5,887 views

At the cafeteria by BRK (3 parts) CGrow Cock Immort Infect XCock MGrow Musc Sugg 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 • 8.4K words

22,001 views

Attil|a|rt by LAComplex CGrow Viol Taller Giant Cock MGrow Musc Grow The 15-foot phenomenon Attila pays a visit to the world-famous Michelangelo’s David statue, having decided to offer to the world a new reference for manliness and virility. Added Mar 2019 • 7.0K words

5,352 views

Augmentations by Also Known As (18 parts) CGrow Cock Scent MGrow Musc Grow 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 • 98.8K words

29,951 views

The awakening (muscl4life) by muscl4life (2 parts) CGrow Fant Cock MGrow Musc Added Nov 2013 • Updated Dec 2013 • 10.3K words
14,157 views

Away game by spacevlad (2 parts) MGrow Gut Musc PSD Grow 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 • 6.3K words

17,286 views

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Baby brother by Shawn D. Stewart Bro CGrow Taller MGrow Musc "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 • 2.9K words

92,521 views

Bait and tackle by Ziel CGrow CShr Hum MGrow MTheft Shr Grow Super Series Sapp continues his size-draining activities. This time against the speed and power of a hero called Linebacker. Added Apr 2020 • 5.4K words

3,424 views

The band by BRK (2 parts) Cock HyCock XArm XLimb MGrow PSD Rep Grow Sugg Eager to improve his personal appearance for the sake of the band he’s fronting, Ryan finds a solution that involves dramatically changing how he looks. Now he just has to keep the weird parts of it secret from his friends and roommate. Added May 2002 • 7.5K words

15,158 views

Bara juice by Smokey Digsby Fur CGrow Cock MGrow Musc Baxter, a limpy junkyard poodle, starts taking supplements to enhance his body. What he gets, however, is a unexpected change during a very important date with the guy of his dreams. Added Aug 2017 • 2.6K words

9,405 views

Basement full of muscleboy gods by Krisiar Btaur CGrow 4Legs Cock XAbs XCock XLeg XLimb MGrow Musc NipCum 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 • 2.1K words

55,403 views

Baxter prep by BRK MGrow Musc Grow 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 • 2.0K words

19,511 views

Be careful what you download by Tereshky CGrow Cock HyCock MGrow Musc Nude SocMed Tim Ryan learns a lesson about using Instagram filters. Pick to the wrong one and it might change more than your pics. Added Dec 2019 • 3.4K words

7,896 views

Be careful what you wish for by Tereshky (5 parts) AgeDown CGrow Balls Cock Immob MGrow Musc Nonc 2Gay “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 2020 • 21.7K words

18,586 views

Bear’s den by Pfefferooney (3 parts) Belly CGrow Hair Balls Cock HyCock Infect MGrow Musc NipCum Grow 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 • 9.0K words

15,745 views

The becoming by Musclebuff (2 parts) MGrow Musc Added Oct 2002 • 6.0K words
12,656 views

Becoming a muscle god by Corwin CGrow Dom Giant Cock MGrow Musc Grow 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 • 3.1K words

16,851 views

Becoming the ultimate man by musclestory Hair MGrow Musc Added Aug 2003 • 4.6K words
69,390 views

The beefening by Benjamin Skipper CGrow Dom Hair Balls Cock MGrow Gut Musc Nonc PSD Grow 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 • 2.3K words

28,742 views

Being big by BigBoy Cock MGrow Musc Added Jul 2002 • 1.0K words
53,022 views
The belt by Marc MGrow Musc Added Jul 2002 • 1.5K words
10,600 views

Ben gets huge by spacevlad (8 parts) Giant Cum Scent MGrow Gut Musc PSD Grow 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 • 17.8K words

40,048 views

Bending the straight boys by iciss (2 parts) Bro CGrow Virgin Cock MGrow Musc 2Gay Twins 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 • 11.1K words

49,561 views

The Benefactor by Proteus (10 parts) Hard CGrow Taller Balls Cock Immob MGrow Gut Musc Nonc PSD Grow Supn The Benefactor bestows favor on those he deems worthy, whether they like it or not. Added Jan 2020 • Updated Apr 2020 • 10.3K words

13,023 views

Ben’s escapades by Kaelan (9 parts) Bro CGrow Grad Balls Cock HyCock Cum MGrow Musc NipCum Self 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 • 33.6K words

34,331 views

The berries down by the creek by Krisiar CGrow HyCock XAbs MGrow Musc NipCum Grow Jack hangs out with his friend and crush, Kurt, which leads to an encounter with a bush sporting some unusual berries. Added May 2011 • 3.6K words

43,683 views

Best birthday ever by TheSizeKing (5 parts) CGrow Balls Cock HyCock MGrow Self Zac is already above average. But when his birthday comes around, he gets everything he wishes for and then some. Added Feb 2020 • 14.9K words

11,200 views

Best buds by Richard Jasper (9 parts) Hair Grad Cock MGrow Musc 2Gay John and James, one straight, one gay, are freshman roommates. They bond over bodybuilding… and succeed beyond their wildest imaginings. Added Feb 2020 • 13.4K words

4,890 views

Best wishes and regards by Lemur MGrow Musc Added Jul 2002 • 2.2K words
11,302 views

The bet by JayPat (4 parts) MGrow Musc Grow 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 • 31.8K words

27,948 views

Bet you can’t have just one by Ziel CGrow Giant Balls Cock HyCock MGrow Musc Grow Vincent was given pretty clear instructions with the new growth supplement his pal invented: “Only take one pill.” Added May 2017 • 5.6K words

21,671 views

Beta Logan and his big brother by Eric Aaldersen Bro CGrow Grad Balls Cock Cum Pher Strong MGrow Musc Supn Logan has difficulty controlling himself as his older brother Brian becomes a bigger and bigger stud. Added Jun 2020 • 6.4K words

3,750 views

Beyond Olympia by Richard Jasper HMusc MGrow Musc What happens when you're so freaking big the other Olympia competitors howl “unfair, unfair”?! Added Feb 2020 • 1.5K words