Top-Voted Stories

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

1,628 stories found Sorted by page views in the last 30 days Total word count: 19,000,065

8k+ 1

Humbled by the himbo by MegaMaker Austin likes to sleep around and his preferred choice of men are the biggest, dumbest, strongest guys he can find. He’s been doing this his whole life adding notches to his belt. His goal is to sleep with a jock from every sport. To him, Riley is three birds with one stone: diver, swimmer, and polo player. What he doesn’t realize is just how different being with Riley will be for him. 9 parts 22k words Added Feb 2024 Updated 2 Mar 2024 8,289 views 4.6 stars (48 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Pec Fucking•Hyper Strength•Immobility•Muscle/Strength•Muscle Worship•Lycra/Spandex•Complete•Set in the Future •M/M

7k+ 2

The Double B Ranch by Absman420 It’s been a while since we checked in with the Budd Brothers from “FanTCMan’s Toys”—let’s visit their Kansas Ranch where transformations and muscle growth are on the agenda. 7 parts 25k words Added Jan 2024 Updated 2 Mar 2024 12k views 4.9 stars (30 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Muscle Worship•Hair Growth/Getting Hairy •M/M

Critical mass by UberPump Bryan is just a High School Senior, ready to get his miserable life over with at this wretched place. No one seems to notice the small, scrawny 5-foot-3 teen, with the exception of the school bully. Albert teases Bryan all the time, his goons joining in. After school, Bryan stumbles upon one of his dad’s latest creations at his Bio Medical Research facility ande decides to take the mysterious serum in hopes of one-upping Albert. Bryan’s life, and body, changes forever. But there are side effects that none of them foreseen... 5,082 words Added Feb 2024 7,430 views 4.9 stars (18 votes) •Cock Growth•Cock Pumping•Huge Balls•Ball Growth•Huge Cock•Cum inflation•Hyper Cum•Public Orgasm•Muscle Growth•Muscle/Strength•Muscle Worship•Man Scent•Increased Libido•Foot Growth•Voice Deepening•Getting Taller•Forced Growth•Size Increase•Inflation•Father/Son•Bisexual•Humiliation•Nonconsensual change•Bodily Fluids •M/M•t/t/t

6k+ 1

Went wrong? by Bigmusclenm Jared can eat huge quantities of food without spoiling his hunky physique. His roommate, Martin, can’t help wondering if that applies to the extra-strength gainer powder he’s gotten his hands on. 5 parts 12k words Added Dec 2023 Updated 2 Mar 2024 16k views 5.0 stars (43 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Hyper Muscle•Immobility•Muscle Breast•Muscle Growth•Butt Growth•Belly Growth•Feeding•Getting Taller•Plausible Size Difference•Size Increase•Inflation •M/M

4k+ 3

Outgrowth by BRK Warin gets a special gift from his boyfriend—one that lets him be much more than just a pretty boy-toy. 2,905 words Added Feb 2024 4,823 views 5.0 stars (6 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Muscle Growth•Muscle Gut•Muscle/Strength•Belly Growth•Gradual Change•Giants•Size Increase•Age Difference•Dom/Sub•Valentine’s Day •M/M

The bodybuilding bulge cum-petition by UberPump What do you get when jealously clouds your judgement?  Well lets find out from Chris and Derek.  Two, well know bodybuilders on the stage for the Bulge Competition.  They've been juicing their cock and balls up over several months and have... so far... blown the competition out of the water.  That is until one massive newbie blows up in front of everyone.  His manly display of virility forces Chris and Derek to find alternative means to grow bigger than him... Their balls will certainly not be outdone by some show off! 5,380 words Added Feb 2024 4,497 views 4.3 stars (8 votes) •Cock Growth•Cock Pumping•Huge Balls•Ball Growth•Huge Cock•Cum inflation•Cum Milking•Always Cumming•Hyper Cum•Public Orgasm•Addiction•Hyper Muscle•Immobility•Muscle Growth•Muscle Worship•Man Scent•Voluptuous Men•Increased Libido•Forced Growth•Inflation•Destruction/Violence•Nonconsensual change•Bodily Fluids•Complete •M/M/M•M/M/M/...

Size of love by Bigmusclenm Lucas is bitter and disillusioned about love. His ex-boyfriend cheated on him and cited Lucas's penis size as the problem. Lucas is proud of his body but still feels rejected and unlovable. He tries to find a date on a dating app without success until he receives a message from Dane, who is interested in him despite his size. 5,179 words Added Feb 2024 4,130 views 5.0 stars (8 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Cum inflation•Hyper Cum•Muscle Breast•Muscle Growth•Butt Growth•Belly Growth•Inflation•Valentine’s Day•Stories with Images •M/M

3k+ 5

Happy birthday! by Musclesaber Commission I did for an anonymous user on Twitter. Dean is running late getting home to see his husband for their birthday, but forgets he still has to get a dessert. He stops at the first shop he sees and finds something that might not only save his butt from his husband, but also his marriage. 2 parts 9,382 words Added Dec 2023 Updated 10 Feb 2024 5,091 views 4.4 stars (10 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Cum inflation•Muscle Growth•Butt Growth•Gradual Change•Getting Taller•Plausible Size Difference•Size Increase •M/M

When Evan started growing—Next installment by JuicyJ Let’s see how Charlie’s been since his wedding  5,226 words Added Feb 2024 3,570 views 5.0 stars (15 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cum•Muscle Growth•Getting Taller•Size Increase•Tongue Growth•Bisexual•Hetero Sex •M/M•M/F

Justin (the bigger the better) by Giant Worshipper A young man starts growing, and growing. He finds he likes it a lot. 15 parts 99k words (#23) Added Nov 2009 435k views 4.3 stars (90 votes) •Cock Growth•Huge Cock•Hyper Cock•Straight to Gay•Hyper Strength•Muscle Breast•Muscle Growth•Muscle Gut•Muscle/Strength•Muscle Worship•Man Scent•Increased Libido•Getting Taller•Giants•Size Increase•First Time/Virgin

Sexi-Phi by BRK Joining a frat turns out to be a big transition for Holden, especially given the way his body is reacting to all his extra-hot house-brothers. 9 parts 56k words (#57) Added Jun 2023 Updated 24 Feb 2024 28k views 5.0 stars (32 votes) •Always Hard•Cock Growth•Huge Balls•Ball Growth•Huge Cock•Self-suck•Hyper Cum•Public Orgasm•Muscle Growth•Always Shirtless•Public Nudity•Increased Libido•Gradual Change•Getting Taller•Incest•Father/Son•Twins•Hyper Pheromones•Christmas •M•M/M

Farmer’s boy by Hairymusclemorphs Working on a farm is never easy. But it won’t take long till you’re big enough to do the heavy lifting. 8,938 words Added Mar 2024 3,026 views 4.9 stars (16 votes) •Cock Growth•Ball Growth•Huge Cock•Man Scent•Voice Deepening•Getting Taller•Plausible Size Difference•Hair Growth/Getting Hairy•Dom/Sub•Complete •M/M

2k+ 14

Can’t ignore the balls by BRK Volunteer for one little study, and suddenly you’re the guy with the giant nuts. 3,009 words Added Feb 2024 2,996 views 4.8 stars (13 votes) •Huge Balls•Huge Cock•Hyper Cum•Increased Libido •M

When Evan started growing by JuicyJ It’s a regular day at work for college senior Clint when all of a sudden a cute co-worker of his starts acting strange.  4 parts 33k words Added Mar 2023 Updated 6 Jan 2024 31k views 4.9 stars (83 votes) •Cock Growth•Muscle Growth•Increased Libido•Getting Taller•Size Increase•Bisexual•Hetero Sex •M•M/M•M/M/M•M/F•M/M/F

Freshman, fresh men by West Your best friend and secret crush is now your roommate during your freshman year of college. Both of your comfort levels with each other change when he emerges from the shower smelling fresher than ever, and also bigger each time. 7 parts 13k words Added Sep 2023 Updated 17 Feb 2024 22k views 4.8 stars (31 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Hyper Strength•Muscle Growth•Muscle/Strength•Always Shirtless•Butt Growth•Getting Taller•Size Increase•Retcon•Christmas•Valentine’s Day•Complete •M/M•M/M/M

The billionaire’s secret by YellowJester A bookstore employee brings a romance book to life in an effort to help a nice customer, only to find out what The Billionaire’s Secret actually is. 1,690 words Added Feb 2024 2,691 views 4.0 stars (5 votes) •Cock Growth•Straight to Gay•Muscle Growth•Getting Handsomer•Getting Taller •M/M

The house by Writ Bro When Harry gets an inheritance he could have never dreamed of, he quickly realises his life is about to change. But the true extent of the changes will truly blow his mind. 13 parts 71k words (#39) Added Jan 2023 Updated 2 Mar 2024 30k views 4.9 stars (50 votes) •Cum Milking•Nipple Emissions•Straight to Gay•Hyper Muscle•Muscle Breast•Muscle Growth•Muscle/Strength•Transformation•Size Increase•Dom/Sub •M•M/M•M/M/M•M/M/M/...

The ring of desire by Laylom_02 Alex stumbles across a magic ring that seems to fulfill any desire he might have. Clearly this can only mean good things, right? 2 parts 2,897 words Added Jan 2024 Updated 17 Feb 2024 5,822 views 5.0 stars (10 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cum•Immobility•Gradual Change•Retcon •M•M/M

ChatBod by BRK Looking for an unusual gift for his lover, Jeff finds an AI imagery site that seems eager to dream up their fantasy versions of each other. 3 parts 9,799 words Added Oct 2023 Updated 17 Feb 2024 9,858 views 4.9 stars (11 votes) •Cock Growth•Cock Shrinking•Huge Cock•Hyper Cock•Extra digits•Multicock•Multiarm•Multilimb•Multitongue•Straight to Gay•Muscle Growth•Stretchy•Gradual Change•Getting Taller•Size Increase•A.I.-Controlled Change•Complete •M/M

Wolfsoul by BRK For the tail end of his senior year, 19-year-old Cam moves to a remote town where all the guys are hairy, buff, and glad to welcome him and his workaholic dad into their close-knit community. Their easy affection and heady hotness almost distract him enough to keep him from wondering how all this could have happened, and what it means for him now that he’s inserted himself into this strange backwoods bastion of ultramale hotness.  3,393 words Added Feb 2024 2,410 views 4.6 stars (9 votes) •Huge Cock•Muscle/Strength•Getting Taller•Hair Growth/Getting Hairy•Werewolves •M/M

Growth drive by Musclesaber Jared is on his way to work when he stops by a shop that gives him everything he could’ve dreamed for how to grow bigger. Is it too good to be true? We will have to wait and see how giving people are towards a growing giant. 3,581 words Added Mar 2024 2,357 views 4.8 stars (16 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Hyper Strength•Muscle Breast•Muscle Growth•Muscle/Strength•Muscle Worship•Butt Growth•Getting Taller•Giants•Plausible Size Difference•Size Increase•Dom/Sub•Stories with Images •M

An unexpected inflation by UberPump 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. 41 parts 99k words (#24) Added Apr 2020 Updated 10 Jun 2023 131k views 4.9 stars (61 votes) •Cock Growth•Cock Pumping•Cockfucking•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Cum Milking•Hyper Cum•Public Orgasm•Addiction•Straight to Gay•Hyper Muscle•Pec Fucking•Immobility•Muscle Growth•Muscle/Strength•Public Nudity•Increased Libido•Breast Expansion•Getting Handsomer•Voice Deepening•Getting Taller•Forced Growth•Size Increase•Inflation•App•Nanotech•Incest•Brothers•Bisexual•Hetero Sex•Nonconsensual change•Bodily Fluids•Dildos/Toys•Infectious •M/M•M/M/M•M/M/F

Above average by Ziel 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. 28 parts 130k words (#11) Added Apr 2013 Updated 8 Dec 2018 284k views 4.6 stars (107 votes) •Cock Growth•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Public Orgasm•Hyper Muscle•Muscle Growth•Muscle/Strength•Public Nudity•Butt Growth•Retcon •M/M•M/M/M•M/M/M/...

Spice by Mr. X and Mad Dog In this epic story, the transformative powers of a certain substance are tested by a couple of very horny guys. 50 parts 221k words (#4) Added Oct 2009 Updated 9 Nov 2019 236k views 4.4 stars (62 votes) •Cock Growth•Huge Cock•Other Mental Changes•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle Theft•Muscle/Strength•Muscle Worship•Man Scent•Foot Growth•Gradual Change•Transformation•Voice Deepening•Getting Taller•Size Increase•Hair Growth/Getting Hairy•Age Difference•Incest•Father/Son•Supernatural•Gay Pride•Alcohol •M/M•M/M/M

A little more by BRK A lonely barista makes friends with three sexy brothers, leading to a drunken night of fun where he gets a chance to make a few changes in his life. 3,282 words Added Feb 2024 2,149 views 5.0 stars (5 votes) •Cock Growth•Huge Balls•Huge Cock•Nipple Emissions•Extra digits•Multi-abs•Multicock•Boytaur•Four Legs•Multileg•Multilimb•Multitorso•Muscle Growth•Increased Libido•Getting Handsomer•Getting Taller•Tongue Growth•Suggestion•Incest•Brothers•Merging•Complete •M/M/M/...

All good things by Anon Amon 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. 111 parts 132k words (#9) Added Feb 2017 Updated 29 Oct 2022 223k views 4.6 stars (146 votes) •Cock Growth•Cockfucking•Huge Balls•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Nipple Emissions•Straight to Gay•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle/Strength•Giants•Size Increase•Incest•Brothers•Twins•Infectious•Pagan gods•Complete •M/M•M/M/M

1k+ 19

Max’s wish by Bulge101 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. 11 parts 25k words Added Aug 2011 Updated 2 Nov 2011 313k views 4.6 stars (83 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Infectious •M/M•M/M/M

Jason’s big problem by Joven 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. 49 parts 115k words (#18) Added Oct 2013 Updated 24 Nov 2017 212k views 4.5 stars (79 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•Incest•Brothers •t/t•t/t/t

My roommate (complete) by LenZelig 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.”) 29 parts 223k words (#3) Added Jul 2002 Updated 19 Jun 2021 163k views 4.5 stars (25 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Age Difference•First Time/Virgin•Incest•Brothers•Father/Son•Bisexual•Hetero Sex•Dom/Sub•Witch/Warlock/Wizard•Gay Pride•Mind Control•Complete •M/M•M/M/M•M/M/M/...•t/t•M/t•M/F•M/M/F

Mind and body by BRK 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. 16 parts 66k words (#46) Added Jun 2012 Updated 28 Jul 2017 162k views 4.7 stars (103 votes) •Always Hard•Cock Growth•Huge Cock•Multicock•Straight to Gay•Muscle Growth•Muscle/Strength•Always Shirtless•Getting Taller•Size Increase•App•Suggestion•Incest•Brothers•Hypnosis•Mind Control •t/t•t/t/t•t/t/t...

The alpha touch by Caliburn Young engineer Max has a good deed rewarded with a mysterious rune now tattooed to his wrist. Bestowed with the power to change the body of the men he touches, Max’s life and his friends’ change quite a bit. 15 parts 61k words (#49) Added Jan 2022 Updated 4 Nov 2023 90k views 4.9 stars (212 votes) •Cock Growth•Huge Balls•Huge Cock•Straight to Gay•Muscle Growth•Butt Growth•Increased Libido•Gradual Change•Voice Deepening•Getting Taller•Size Increase•Hair Growth/Getting Hairy•Suggestion•Hetero Sex•Dom/Sub•Nonconsensual change •M/M•M/F

The quest for size by Musclesaber Daladon is on his way home from one of the worst days he’s ever had when he stumbles upon a cart vendor with potions, clothes, and other goods. Daladon is in for a surprise when he sees what some of these goods are capable of. 3 parts 19k words Added Sep 2023 Updated 27 Jan 2024 11k views 4.7 stars (13 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Hyper Muscle•Immobility•Muscle Growth•Muscle/Strength•Muscle Worship•Pointy Ears•Butt Growth•Belly Growth•Getting Taller•Giants•Plausible Size Difference•Size Decrease•Size Increase•Getting Fatter•Inflation•Anthro/Furry•Dragons•Orcs•Fantasy Realm•Medieval(ish) •M/M/M/...

The right blend by BRK In this sequel to “One Hot Summer,” Thad returns to Colorado, still in Zac’s upgraded, hyper-hung body. When he finds he’s no longer able to morph himself back into what he’s supposed to look like, his only hope is his sexy and capable second-in-command, Aleksei. 21 parts 61k words (#48) Added Mar 2023 Updated 24 Feb 2024 21k views 5.0 stars (9 votes) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Multicock•Multiarm•Multilimb•Multipec•Multitongue•Replication•Stacking•Muscle Growth•Muscle/Strength•Always Shirtless•Pointy Ears•Increased Libido•Getting Handsomer•Transformation•Getting Taller•Plausible Size Difference•Size Decrease•Size Increase•Race/Ethnicity Change•Retcon•Incest•Brothers•Nonconsensual change•Body Swap•Cannabis •M/M•M/M/M•M/M/M/...

One more drop by MegaMaker A college water polo player, Rain, is having trouble keeping up with expectations after a lackluster swim season. Afraid of getting cut from his team, he finds a mystery serum that improve his performance. To his surprise it works and his improved performance gets the approval of his entire team and his coach and really attracts the attention of his friend River. Will the attention go his head? Will his team and coach find out? And… will there be any side effects caused by the use of the serum? 16 parts 48k words (#76) Added Mar 2023 Updated 20 May 2023 61k views 4.9 stars (61 votes) •Always Hard•Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Always Cumming•Hyper Cum•Public Orgasm•Multi-abs•Addiction•Straight to Gay•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle/Strength•Muscle Worship•Always Shirtless•Public Nudity•Man Scent•Butt Growth•Increased Libido•Gradual Change•Voice Deepening•Getting Taller•Forced Growth•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Lycra/Spandex•Complete •M/M

Chuck, the size thief by spacevlad Chuck, a middling-sized construction worker who wishes he were bigger, finds a way to grow huge. 16 parts 42k words (#94) Added Jun 2017 Updated 22 Dec 2017 122k views 4.6 stars (32 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Getting Dumber•Other Mental Changes•Muscle Growth•Muscle Gut•Muscle Theft•Muscle/Strength•Belly Growth•Voice Deepening•Giants•Plausible Size Difference•Size Decrease•Size Increase•Hair Growth/Getting Hairy•Getting Fatter•Inflation•Nanotech•Destruction/Violence•Nonconsensual change•Nonconsensual sex•Absorption •M/M

Think bigger by MaxMorphs Mild-mannered Kyle gains an unexpected power over his hunky friends after they all enjoy a magic show during a fateful vacation in Vegas. 24 parts 57k words (#54) Added Jun 2022 Updated 20 May 2023 99k views 4.9 stars (113 votes) •Cock Growth•Huge Cock•Hyper Cum•Getting Dumber•Straight to Gay•Immobility•Muscle Growth•Muscle Gut•Muscle/Strength•Getting Taller•Size Increase•Suggestion•Dom/Sub•Hypnosis•Complete•Stories with Images •M/M

Playing with FanTCMan’s toys by Absman420 The Budd Brothers and their muscle adventures. 12 parts 54k words (#63) Added Jan 2024 3,131 views 4.9 stars (9 votes) •Cock Growth•Straight to Gay•Muscle Growth•Muscle Worship•Hair Growth/Getting Hairy•Incest•Brothers•Complete •M/M•M/M/M•M/M/M/...

The big college roommate by MaxMorphs A story about a big ex-jock who turns himself into an actual whale! 3,856 words Added Jan 2024 5,227 views 4.5 stars (11 votes) •Cock Growth•Multicock•Belly Growth•Size Increase•Hair Growth/Getting Hairy•Getting Fatter•Vore •M/M

University notes by brazboy Being a new student at a mixed university presents new challenges and opportunities to a normal and naïve lad—such as the interaction with youthful and handsome Dairy Bulls. 6 parts 11k words Added Jan 2024 Updated 2 Mar 2024 2,692 views 4.8 stars (5 votes) •Cock Growth•Huge Cock•Hyper Cock•Cum Milking•Muscle Growth•Getting Taller•Incest•Brothers•Anthro/Furry•Complete •M/M

Puberty is a bitch by Lover Boy 2 Brad thought he was done with puberty, so he’s perplexed and a bit alarmed by a new wave of growth that keeps hitting him at just the wrong moment. 11 parts 15k words Added Sep 2009 172k views 4.2 stars (30 votes) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Gradual Change•Size Increase •t/t

My chronicles by growerdom I chronicle my growing life, dealing with my new abilities, and you’re there every step of the way.  2 parts 4,018 words Added Dec 2023 Updated 30 Dec 2023 11k views 4.6 stars (18 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Public Orgasm•Dom to Sub•Straight to Gay•Hyper Muscle•Pec Fucking•Hyper Strength•Immobility•Muscle Growth•Muscle Gut•Muscle Theft•Muscle/Strength•Muscle Worship•Man Scent•Voluptuous Men•Butt Growth•Belly Growth•Increased Libido•Getting Handsomer•Gradual Change•Transformation•Voice Deepening•Getting Taller•Giants•Forced Growth•Plausible Size Difference•Size Decrease•Size Increase•Hair Growth/Getting Hairy•Getting Fatter•Father/Son•Dom/Sub•Nonconsensual change•Hyper Pheromones •M

Frat crisis by BRK Jacob returns to his frat after a week away to find it stinking of sex and full of guys a lot bigger than he remembered them being. 2 parts 5,217 words Added Jun 2022 Updated 2 Dec 2023 19k views 4.8 stars (35 votes) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cum•Straight to Gay•Pec Fucking•Muscle Growth•Muscle/Strength•Increased Libido•Getting Handsomer•Gradual Change•Voice Deepening•Hair Growth/Getting Hairy•Nonconsensual change•Infectious•Complete •M/M•M/M/M•M/M/M/...

Medicine show by Fafhrd and Longbow9 Underendowed College student Terry comes in contact with a mysterious “extension cream” that turns out to be the real thing. Soon, he and his male and female friends are transforming themselves, and some are unable to stop. 174 parts 250k words (#2) Added Feb 2012 Updated 22 Feb 2014 215k views 4.5 stars (25 votes) •Cock Growth•Ball Growth•Huge Cock•Hyper Cock•Self-suck•First Time/Virgin•Bisexual•Hetero Sex•Lycra/Spandex•Infectious •M•M/M•M/F•M/F/F•M/M/F

Best buds by Richard Jasper John and James, one straight, one gay, are freshman roommates. They bond over bodybuilding… and succeed beyond their wildest imaginings. 9 parts 13k words Added Feb 2020 16k views 5.0 stars (10 votes) •Huge Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Gradual Change•Hair Growth/Getting Hairy •M/M

An airplane parasite by SomeMuscleGuy After bumping into the wrong person at the airport, Michael is infected with a parasite that was on its way to be destroyed. This parasite only has one goal in mind: Growth. Massive Growth. 4,977 words Added Oct 2022 28k views 4.8 stars (31 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Multi-abs•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Butt Growth•Foot Growth•Transformation•Voice Deepening•Getting Taller•Giants•Size Increase•Destruction/Violence•Nonconsensual change•Infectious•Aliens•Symbiotes •M

<1k 1583

Bull’s strength by muscl4life 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. 28 parts 88k words (#28) Added Jul 2018 Updated 6 Oct 2018 92k views 4.8 stars (45 votes) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Multi-abs•Multicock•Muscle Growth•Muscle/Strength•Muscle Worship•Transformation•Getting Taller•Plausible Size Difference•Size Increase•Age Difference•Bestiality•Incest•Father/Son•Destruction/Violence•Infectious•Flying •M/M•M/M/M•M/M/M/...

Another nerd story by Sithspawn 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. 2 parts 9,072 words Added Apr 2020 Updated 16 May 2020 19k views 4.7 stars (11 votes) •Cock Growth•Huge Cock•Hyper Strength•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•Nanotech •M/M

His brother drains his manhood by Ballmeat A younger brother drains his big, strong, overconfident older brother of his cock, balls and muscle. 2,593 words Added Jan 2018 70k views 4.4 stars (49 votes) •Cock Growth•Cock Shrinking•Cock Theft•Dom to Sub•Straight to Gay•Muscle Growth•Muscle Theft•Muscle/Strength•Incest•Brothers•Dom/Sub•Humiliation•Nonconsensual change •M/M

Forced growth by hyperboi Tyler wakes up trapped in a room where everything seems geared toward forcing him to become bigger, stronger, and sexier. 5 parts 6,397 words Added Oct 2013 132k views 4.4 stars (54 votes) •Cock Growth•Cock Pumping•Huge Cock•Hyper Cock•Other Mental Changes•Straight to Gay•Muscle Growth•Muscle/Strength•Forced Growth•Nonconsensual change •M

Cave of worshippers by SomeMuscleGuy After a strange workout session with his friend Ben, Mike wakes up restrained in a cave, surrounded by cultists who want to make him their muscle god. 8,219 words Added Jan 2023 16k views 4.6 stars (16 votes) •Always Hard•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Multi-abs•Addiction•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle Worship•Butt Growth•Increased Libido•Foot Growth•Transformation•Voice Deepening•Getting Taller•Forced Growth•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Dom/Sub•Nonconsensual change•Restraints•Absorption•Complete •M/M

A real man by DoubleCream A douchey gym bro wakes up in another world, in another body. 6 parts 30k words Added Jan 2021 Updated 4 Mar 2023 38k views 4.9 stars (63 votes) •Cock Shrinking•Huge Balls•Huge Cock•Addiction•Straight to Gay•Muscle/Strength•Muscle Worship•Man Scent•Increased Libido•Male Pregnancy•Plausible Size Difference•Size Decrease•Hairless•First Time/Virgin•Cock Cage•Dom/Sub•Nonconsensual change•Hyper Pheromones•Mind Control •M/M

Miracle Grow Boys (Revised) by Bulklore Aiden and Jack are two new soccer recruits desperate to fit into a team of hung studs at their college. They resort to mysterious pills promising growth, but in ignoring the warnings they accidentally trigger more than they can handle. An old story revised by the author under a new name. 2 parts 11k words Added Jan 2024 Updated 13 Jan 2024 9,055 views 5.0 stars (34 votes) •Cock Growth•Huge Cock•Self-suck•Muscle Growth•Increased Libido •M/M

Unboxing Viktor by BRK In a not-so-distant future, Christian receives a gift that reminds him of the hot neighbor he has a crush on. 3,316 words Added Feb 2024 901 views 5.0 stars (9 votes) •Huge Cock•Multicock•Multiarm•Multilimb•Multipec•Transformation•Getting Taller•Mouthcock•Androids/Cyborgs•Complete•Set in the Future •M/M

Too big by NBCK99 Would a constantly growing cock really be so great? One man tells his story and explains how his condition has affected his life. 2,883 words Added Jan 2024 4,540 views 4.8 stars (18 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Other Mental Changes•Public Nudity•Increased Libido•Gradual Change•Complete •M•M/M•M/M/M

Reality Pack by Thorn What happens when the program you’re working on for school has a downloadable mod? You investigate it of course! 15 parts 79k words (#34) Added Nov 2020 Updated 27 Feb 2021 56k views 4.9 stars (42 votes) •Cock Growth•Huge Cock•Pec Fucking•Muscle Breast•Muscle Growth•Muscle/Strength•Butt Growth•Belly Growth•Gradual Change•Getting Taller•Plausible Size Difference•Hair Growth/Getting Hairy•App•Age Difference•First Time/Virgin•Incest•Brothers•Father/Son•Valentine’s Day •M/M•M/M/M

The procedure by UberPump Jerry finds out about a special, experimental procedure to make his cock and balls bigger. To pursue his life with a much bigger cock than his 8.5 inches of glory, he makes an appointment with Dr. Meyers. The procedure proceeds without a hitch, giving Jerry a much, much larger cock. However, Jerry is never satisfied. To him, “There’s no such thing as... too big”… right? 5,112 words Added Jan 2024 4,177 views 4.9 stars (19 votes) •Cock Growth•Cock Pumping•Huge Balls•Ball Growth•Huge Cock•Increased Libido•Forced Growth•Inflation •M/M•NS

Tips welcome by TheSizeKing Mark decides to try a sex new toy he found online for his live stream. But when more tips start rolling in from his viewers, he finds that the toy offers more than just sexual pleasure. 4,432 words Added Oct 2020 12k views 5.0 stars (13 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Getting Taller•Size Increase•Social Media •M

The leave-behind by BRK The young manager of a Vermont B&B finds an extremely unusual, and unexpectedly erotic, item has been left behind by a departed guest. 6 parts 22k words Added Aug 2014 Updated 10 Feb 2024 18k views 4.6 stars (18 votes) •Extra digits•Multilimb•Straight to Gay•Muscle/Strength•Muscle Worship•Detachable •M/M

Coach’s big surprise (Revised) by SomeMuscleGuy and MuscleMike Josh is struggling to keep up with the rest of his college wrestling team, and he’s afraid he will not make the cut. Luckily, a former student of his teacher, Coach Smith, is sent a package that’ll make them both become the men they’ve always dreamed of becoming—and more. 5 parts 18k words Added May 2023 Updated 29 Jul 2023 52k views 4.8 stars (32 votes) •Always Hard•Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Self-suck•Public Orgasm•Addiction•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle/Strength•Muscle Worship•Public Nudity•Increased Libido•Transformation•Voice Deepening•Getting Taller•Giants•Size Increase•Hair Growth/Getting Hairy•Destruction/Violence•Infectious•Complete •M/M•M/M/M

A.I. by Corwin Tim’s homemade A.I. software decides to help him get huge. 11 parts 31k words Added Dec 2013 76k views 4.8 stars (44 votes) •Huge Cock•Cum Milking•Addiction•Hyper Muscle•Muscle Growth•Muscle/Strength•Muscle Worship•Gradual Change•Plausible Size Difference•Size Increase•A.I.-Controlled Change•Destruction/Violence•Restraints•Androids/Cyborgs•Complete •M/M

Big changes by Ziel 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. 15 parts 79k words (#35) Added Dec 2013 Updated 16 Dec 2023 103k views 4.7 stars (29 votes) •Cock Growth•Huge Balls•Ball Growth•Hyper Cock•Hyper Cum•Incest•Twins•Dildos/Toys•Christmas•Easter•Gay Pride•Halloween•New Year’s Eve•Valentine’s Day•Stories with Images •M/M•M/M/M

Bigger issues by muscl4life 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? 6 parts 47k words (#78) Added Dec 2013 141k views 4.0 stars (24 votes) •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Multi-abs•Straight to Gay•Muscle Growth•Muscle/Strength•Muscle Worship•Size Increase •M/M

Stadium brew by BRK Three cousins at a football game down some concession-stand beer, and before long they’re in a deserted men’s room getting bigger and hairier and hornier for each other. 2 parts 11k words Added Nov 2023 Updated 13 Jan 2024 12k views 5.0 stars (41 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Public Orgasm•Straight to Gay•Muscle Growth•Increased Libido•Getting Taller•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Incest•Alcohol •M/M/M•M/M/M/...

A fucking god by Jerkoffcentral A teenager is both exasperated and incredibly turned on by how his body and everything about it seems to be getting freakier and freakier. 4 parts 11k words Added Mar 2019 Updated 8 Jul 2023 53k views 4.7 stars (43 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Cum inflation•Hyper Cum•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Muscle Worship•Gradual Change•Size Increase•Incest•Brothers •M/M

Failed revenge by GiantGuy A high school senior concocts a serum to get revenge on his longtime bully, but it doesn’t quite go to plan. 1,944 words Added May 2003 31k views 4.2 stars (5 votes) •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle/Strength•Plausible Size Difference•Size Increase •M/M

Growth school by Writ Bro 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. 12 parts 56k words (#59) Added Jun 2018 Updated 11 May 2019 63k views 4.6 stars (23 votes) •Cock Growth•Huge Cock•Pec Fucking•Muscle Breast•Muscle Growth•Muscle/Strength•Dom/Sub•Restraints•Sex-Slave•Lycra/Spandex •M/M•M/M/M

Coming of age by Also Known As Jerry’s nephew comes to visit him in San Francisco, and turns out to be very huge, very beautiful and very uninhibited. 4 parts 13k words Added Feb 2019 26k views 5.0 stars (18 votes) •Cock Growth•Huge Balls•Huge Cock•Self-suck•Hyper Cum•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•Hairless•Incest •M/t

Jon the growing stepdad by spacevlad Austin’s mother passes away, leaving behind a special gift. Austin uses this gift to give his stepdad, Jon, a new direction and motivation. Jon is eager to impress his stepson. 15 parts 61k words (#50) Added Oct 2022 Updated 10 Dec 2022 36k views 4.6 stars (32 votes) •Huge Cock•Muscle Growth•Muscle Gut•Muscle Worship•Man Scent•Belly Growth•Feeding•Gradual Change•Getting Taller•Plausible Size Difference•Size Increase•Suggestion•Father/Son•Dom/Sub•Humiliation•Christmas•New Year’s Eve•Valentine’s Day•Complete •M/M

The boarder by Mikeytron Atticus’s family has decided to rent the spare bedroom in their house. The new boarder turns out to be the sexiest hunk Atticus has ever seen. His life is about to change in a big way. A slow-boil coming-of-age muscle-growth romance set in the My Best Friend’s Muscles universe. 18 parts 86k words (#30) Added Feb 2023 Updated 24 Jun 2023 51k views 4.9 stars (141 votes) •Cock Growth•Cock Pumping•Huge Cock•Hyper Muscle•Immobility•Muscle Growth•Muscle Gut•Muscle/Strength•Muscle Worship•Man Scent•Belly Growth•Feeding•Getting Handsomer•Gradual Change•Voice Deepening•Plausible Size Difference•Christmas•Thanksgiving•Valentine’s Day•Complete•Alcohol •M/M•M/M/M•M/M/M/...

Casey’s mancock by BRK Undersized college student Casey develops a sudden need for a cock just big enough for people to know it’s there. And between his own skills and his unwitting roommate’s, he knows just how to make it happen. 13 parts 48k words (#74) Added Jul 2022 Updated 25 Mar 2023 45k views 4.9 stars (77 votes) •Always Hard•Cock Growth•Huge Cock•Self-suck•Hyper Cum•Public Orgasm•Pec Fucking•Muscle Growth•Always Shirtless•Public Nudity•Increased Libido•Getting Handsomer•Gradual Change•Getting Taller•Forced Growth•Plausible Size Difference•Size Increase•App•Nonconsensual change•Hyper Pheromones•Infectious•Hypnosis•Mind Control •M/M•M/M/M•M/M/M/...

The book of desires by SomeMuscleGuy After stealing a corrupted book at the gym, Michael is left growing uncontrollably by a Symbiotic Demon that only wants to swell its victims with the most size possible. But even the demon underestimates just how gigantic Michael wants to become. 7,676 words Added Dec 2022 20k views 4.9 stars (9 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Public Orgasm•Multi-abs•Addiction•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle Worship•Public Nudity•Butt Growth•Foot Growth•Transformation•Voice Deepening•Getting Taller•Giants•Size Increase•Destruction/Violence•Nonconsensual change•Infectious•Aliens•Symbiotes•Complete•Stories with Images •M

Containment breach by SomeMuscleGuy After Kalos experiences a suit malfunction while working with a Radioactive Material at work, he is left growing at a quickening rate to sizes that nobody ever thought was possible, and its contaminated effects are spreading too fast to be stopped. 11k words Added Mar 2023 17k views 4.7 stars (17 votes) •Always Hard•Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Self-suck•Cum Milking•Always Cumming•Hyper Cum•Nipple Emissions•Public Orgasm•Extra digits•Multi-abs•Multiarm•Addiction•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle Gut•Muscle Worship•Public Nudity•Butt Growth•Belly Growth•Increased Libido•Transformation•Voice Deepening•Getting Taller•Giants•Forced Growth•Size Increase•Hair Growth/Getting Hairy•Nonconsensual change•Rubber/Latex•Infectious•Complete •M

Conner’s massive reveal by MegaMaker Isaac and Connor have been dating for years and recently graduated college. Connor wants this relationship to last for the rest of their lives. In order to do that he must reveal what he truly is to his lover. He’s afraid Isaac won’t want to be with him anymore but when Isaac finds out he falls in love with Connor all over again. 6,512 words Added Feb 2023 14k views 4.3 stars (9 votes) •Always Hard•Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Always Cumming•Hyper Cum•Public Orgasm•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle/Strength•Muscle Worship•Public Nudity•Man Scent•Butt Growth•Increased Libido•Gradual Change•Voice Deepening•Getting Taller•Giants•Forced Growth•Size Increase•Shapeshifting•Complete •M/M

The locker room thief by CockTFBoi Riley, a personal trainer, heads into the gym to get ready for his first client of the day. Things take a strange turn when his client, Ethan, suggests a new exercise regimen. 3,234 words Added Jan 2021 19k views 4.9 stars (12 votes) •Cock Growth•Cock Shrinking•Cock Theft•Muscle Growth•Muscle Theft•Getting Taller•Size Decrease•Size Increase •M/M

The Body Builder by Greggrth 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… 16 parts 58k words (#53) Added Dec 2020 Updated 12 Aug 2023 69k views 4.9 stars (66 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Cum inflation•Hyper Muscle•Immobility•Muscle Growth•Stretchy•Forced Growth•Size Increase•Lycra/Spandex•Rubber/Latex•Superhero/Supervillain •M/M•M/M/M

Little brother gets big by pkak2k12 You (a muscle stud) are home alone with your 20-year-old younger brother (Joey). After a good fap in the shower you hear a crash coming from downstairs. What is he doing? 1,596 words Added Jul 2022 19k views 5.0 stars (13 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle Worship•Getting Taller•Plausible Size Difference•Size Increase•Incest•Brothers •M/M

The brothers by FanTCMan Cory Callahan and his three sibs participate in a secret program, resulting in more muscles, body hair, cock size, and horniness. 8 parts 23k words Added Mar 2003 115k views 4.8 stars (95 votes) •Always Hard•Cock Growth•Huge Cock•Addiction•Straight to Gay•Muscle Growth•Muscle/Strength•Gradual Change•Hair Growth/Getting Hairy•Incest•Brothers •t/t•M/t

The hulk pill by JayPat The only thing weirder than your buddy Boz offering you a “hulk pill” would be for it to actually work. 5 parts 29k words Added Oct 2012 98k views 4.7 stars (29 votes) •Cock Growth•Huge Cock•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Size Increase•Nanotech•Destruction/Violence•Infectious•Complete •t/t

Alpha product series by Chet Boner 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! 19 parts 23k words Added May 2017 Updated 11 May 2019 89k views 4.3 stars (43 votes) •Cock Growth•Huge Balls•Hyper Cum•Nipple Emissions•Muscle Growth•Muscle/Strength•Age Difference•Incest•Brothers•Father/Son•Stories with Images •M/M•M/M/M

Hard body by Also Known As 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. 16 parts 83k words (#31) Added Oct 2016 Updated 6 Aug 2022 92k views 4.5 stars (103 votes) •Cock Growth•Huge Balls•Huge Cock•Prehensile Cock•Muscle Growth•Muscle/Strength•Muscle Worship•Transformation•Size Increase•Dom/Sub •M/M•M/M/M

The dudes by BRK 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. 7 parts 16k words Added Mar 2010 Updated 2 Mar 2016 128k views 4.7 stars (48 votes) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Self-suck•Hyper Cum•Public Orgasm•Multi-abs•Straight to Gay•Muscle Growth•Muscle/Strength•Increased Libido•Getting Handsomer•Plausible Size Difference•Size Increase•Tongue Growth•Retcon•Suggestion•Brothers•Hyper Pheromones •t/t•t/t/t•t/t/t...

Baby brother by Shawn D. Stewart "Kev, did you see a glass here?” “Whoa, man, was that yours? Sorry… I was really thirsty…” “You drank it!?” Aaaaand off we go! 2,879 words Added Mar 2003 126k views 4.5 stars (42 votes) •Cock Growth•Muscle Growth•Muscle/Strength•Getting Taller•Incest•Brothers

Parasitic paradise by SomeMuscleGuy After over a year of committing himself to a healthier lifestyle, Kyle finds himself down on his luck about his physical progress. Wanting to cheer him up, his boyfriend, Dom, surprises him with a ritual that is meant to help them grow. What neither realizes is that the being they summoned doesn't just want to see them grow. It wants them to see them ascend. 3 parts 13k words Added Oct 2023 Updated 16 Dec 2023 15k views 4.8 stars (15 votes) •Always Hard•Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Always Cumming•Public Orgasm•Addiction•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle Worship•Increased Libido•Foot Growth•Gradual Change•Voice Deepening•Getting Taller•Giants•Size Increase•Dom/Sub•Infectious•Aliens•Symbiotes•Tentacle•Demons•Complete •M/M•M/M/M

Airport muscle by Richard Jasper When you have a really long layover, having a sleeping cube comes in handy! 5 parts 5,889 words Added Jan 2020 14k views 4.2 stars (6 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Transformation•Shapeshifting •M/M

Evolving friendship by Yoru Preston and David were bros for life until David began taking a secretive treatment that has made him bigger, stronger, and more aggressive. Preston wants to save their friendship, but David has changed and may have to force Preston to accept that. 3,861 words Added Oct 2020 12k views 4.7 stars (33 votes) •Cock Growth•Cock Shrinking•Straight to Gay•Muscle/Strength•Man Scent•Dom/Sub•Humiliation •M/M

Second puberty by JayPat 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. 15 parts 91k words (#26) Added Sep 2012 81k views 4.8 stars (33 votes) •Cock Growth•Huge Cock•Hyper Strength•Muscle Growth•Muscle/Strength•Increased Libido•Size Increase•Bisexual•Destruction/Violence•Hyper Pheromones

Loading... by Ziel Russel is feeling embarrassingly puny his first day trying to work out at the gym, but with a little determination, a few simple exercises, and his friend’s gag gift—a “Loading muscles…” workout tank and an “Enhance” brand jock strap to go with it—things start to turn around pretty rapidly. 7,139 words Added Feb 2019 23k views 4.6 stars (21 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Muscle•Immobility•Muscle Growth•Muscle/Strength •M/M/M

Becoming the ultimate man by musclestory When a man’s ultimate dream becomes his ultimate reality. 4,565 words Added Aug 2003 93k views 4.3 stars (24 votes) •Cock Growth•Huge Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Voice Deepening•Giants•Size Increase•Hair Growth/Getting Hairy •t

Ben gets huge by spacevlad 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. 8 parts 18k words Added Jun 2016 74k views 4.3 stars (43 votes) •Hyper Cum•Muscle Growth•Muscle Gut•Muscle/Strength•Man Scent•Giants•Plausible Size Difference•Size Increase •M/M

Hog nog by Bulklore A young personal trainer named Todd is invited to the annual holiday party for the gym’s staff and clients, but quickly his discipline is tested as cups of infamous ‘hog nog’ are passed around during a party game. 5,400 words Added Jan 2024 2,441 views 4.7 stars (6 votes) •Belly Growth•Feeding•Forced Growth•Getting Fatter•Christmas •M/M

Changing Nick by BRK 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. 18 parts 70k words (#42) Added May 2013 Updated 16 Jul 2022 117k views 4.7 stars (39 votes) •Always Hard•Cock Growth•Huge Cock•Nipcocks•Multi-abs•Multicock•Multihead•Lots of Legs•Multiarm•Multileg•Multilimb•Three Legs•Multipec•Multitorso•Replication•Stacking•Straight to Gay•Muscle Growth•Muscle/Strength•Always Shirtless•Increased Libido•Getting Handsomer•Getting Taller•Size Increase•Tongue Growth•App•Retcon•Selfcest•Nonconsensual change•Merging•Witch/Warlock/Wizard•Invisibility •M/M•M/M/M•M/M/M/...

I, phone by BRK Will’s new fringe-brand phone has some strange features, including a joke setting to exaggerate a bit when you ask it about you. 2,465 words Added Jun 2022 7,617 views 4.2 stars (11 votes) •Cock Growth•Huge Cock•Multi-abs•Multicock•Muscle Growth•Getting Taller•App•Retcon•Suggestion•Complete •M/M/M

Moocows by Meddler Incs Cody's world is turned upside down when he is faced with a twisted coach and his followers. 11 parts 22k words Added Jan 2017 Updated 23 Sep 2023 46k views 4.9 stars (41 votes) •Huge Cock•Cum Milking•Nipple Emissions•Muscle Breast•Muscle Growth•Muscle/Strength•Increased Libido•Gradual Change•Human to Animal/Anthro•Hair Growth/Getting Hairy•Nonconsensual change•Hypnosis•Mind Control•Complete •M/M/M/...

One hot summer by BRK 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. 54 parts 119k words (#17) Added Jun 2019 Updated 25 Jun 2022 72k views 4.9 stars (54 votes) •Always Hard•Cock Growth•Huge Cock•Self-suck•Replication•Other Mental Changes•Muscle Growth•Muscle/Strength•Always Shirtless•Increased Libido•Gradual Change•Voice Deepening•Getting Taller•Giants•Plausible Size Difference•Size Decrease•Size Increase•Hair Growth/Getting Hairy•Incest•Brothers•Twins•Selfcest•Nonconsensual change•Body Swap•Shared Body•Fourth of July•Gay Pride•Complete•Cannabis •M•M/M•M/M/M•M/M/M/...

Unequal exchange by Fallon Ives Jacob gets more (and less) than he bargained for when a late-night hookup with a guy from out of town takes a turn for the strange. No part of him will ever be the same. 9 parts 21k words Added Nov 2021 Updated 12 Feb 2022 32k views 4.6 stars (16 votes) •Cock Growth•Cut to Uncut•Cock Shrinking•Cock Theft•Huge Balls•Huge Cock•Hyper Cum•Muscle Worship•Man Scent•Belly Growth•Increased Libido•Gradual Change•Transformation•Getting Taller•Plausible Size Difference•Size Decrease•Size Increase•Getting Fatter•Tongue Growth•Dom/Sub•Humiliation•Nonconsensual change•Sex-Slave•Supernatural •M/M•M/M/M

No nut for you by Musclesaber Joey has almost made it through No Nut November without breaking his determination. With his big balls aching for release he calls his friend Brian, who has a good way for him to find some release without losing NNN. 2 parts 8,269 words Added Nov 2023 Updated 9 Dec 2023 9,881 views 4.8 stars (9 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Muscle•Pec Fucking•Hyper Strength•Muscle Growth•Muscle Gut•Muscle/Strength•Muscle Worship•Butt Growth•Belly Growth•Getting Taller•Giants•Plausible Size Difference•Size Increase •M/M

Bull brothers by brazboy Caio and André live together in their family farm, burdened by the loans inherited from their parents. Caio supports both of them selling his milk, but his younger brother still wants to contribute, even if he has to do it behind his elder’s back. 3 parts 12k words Added Nov 2021 Updated 27 Nov 2021 18k views 4.8 stars (13 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Cum Milking•Hyper Cum•Nipple Emissions•Hyper Muscle•Muscle Breast•Muscle Growth•Incest•Brothers •M/M

Ad man by FanTCMan 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. 8,642 words Added Dec 2003 87k views 4.9 stars (56 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Straight to Gay•Hyper Muscle•Muscle Growth•Muscle/Strength•Hair Growth/Getting Hairy•Nonconsensual change•Infectious •M/M

Summer research by spacevlad 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. 12 parts 29k words Added Oct 2017 Updated 22 Dec 2017 56k views 4.8 stars (29 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Getting Dumber•Other Mental Changes•Straight to Gay•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle Gut•Muscle/Strength•Man Scent•Belly Growth•Getting Taller•Giants•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Destruction/Violence•Sex-Slave•Fourth of July •M/M

Patient zero by SomeMuscleGuy After exploring a crashed meteorite, Tim and Kyle are left growing uncontrollably. The hornier they get, the larger they grow. But what happens when growth itself makes them horny? 3 parts 13k words Added Nov 2022 Updated 3 Dec 2022 27k views 4.7 stars (20 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Always Cumming•Hyper Cum•Public Orgasm•Multi-abs•Addiction•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Public Nudity•Butt Growth•Increased Libido•Foot Growth•Transformation•Voice Deepening•Getting Taller•Giants•Plausible Size Difference•Size Increase•Nonconsensual change•Infectious•Complete •M/M

Basically a god by CurlyJin What do you do when the kid you bullied in high school becomes a god? 9 parts 31k words Added Jul 2016 Updated 15 Jun 2019 83k views 4.2 stars (24 votes) •Cock Growth•Huge Balls•Hyper Cock•Hyper Cum•Getting Taller•Giants•Size Increase•Bisexual•Hetero Sex•Lycra/Spandex•Space Travel•Superhero/Supervillain•Flying•X-Ray Vision •M/M

Alien gym bro by SuperBlimp A mysterious and enormous stud shows up at Jessie’s gym, but there’s something not quite human about the hulking gorgeous man.  4,413 words Added Nov 2023 6,344 views 4.5 stars (11 votes) •Huge Cock•Cum inflation•Replication•Muscle Growth•Male Pregnancy•Transformation•Size Increase•Inflation•Nonconsensual change•Aliens •M/M•M/M/M

Mirror, mirror on the wall by Double-U That new mirror in his cocky, built roommate’s bathroom has some unexpected features. 2,188 words Added Feb 2019 11k views 4.7 stars (24 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength •M/M

The bodyguards by MaxMorphs Two already huge and beautiful brothers apply for a job guarding a man who might be able to help them get even bigger. 9 parts 22k words Added Apr 2021 Updated 21 Aug 2021 49k views 4.8 stars (47 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Nipcocks•Hyper Cum•Nipple Emissions•Multicock•Hyper Muscle•Muscle Growth•Muscle Gut•Muscle/Strength•Belly Growth•Gradual Change•Plausible Size Difference•Size Increase•Inflation•Incest•Brothers•Twins •M/M•M/M/M

Sean goes to prison by Joven 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. 18 parts 28k words Added Aug 2017 Updated 18 Dec 2021 54k views 4.8 stars (44 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Cum Milking•Straight to Gay•Muscle Growth•Size Increase•Nonconsensual change•Restraints •M/M•M/M/M/...

The tailor by screamingmoist A trip to an exclusive tailor ends in more than a new wardrobe. 4,618 words Added Jan 2024 3,400 views 4.2 stars (6 votes) •Huge Cock•Cock Body•Straight to Gay•Muscle Growth•Butt Growth •M/M

Unexpected side effects by WBHunk Jay discovers a virus that seems to have a transformative effect on the body. It just needs to be tested on a human subject… 2 parts 2,776 words Added Feb 2003 20k views 4.6 stars (12 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Transformation•Shapeshifting •M/M

What a little confidence can do by TheSizeKing Cory and Ian have been friends for years. They ended up going to separate colleges, and met up four years later. Both guys had gone through a lot of changes, but Cory had an extra surprise in store… 4 parts 12k words Added Feb 2020 27k views 5.0 stars (27 votes) •Cock Growth•Cock Shrinking•Cock Theft•Huge Balls•Huge Cock•Muscle Growth•Muscle Theft•Getting Taller•Size Increase•Dom/Sub •M/M

It’s never enough by K. Theeunknown All Trent wants is companionship, until his inner size queen takes him down a deep rabbit hole. Will he ever be able to clean up the nearly uncontrollable mess he’s made? 3 parts 6,734 words Added Jan 2023 Updated 11 Mar 2023 24k views 4.8 stars (35 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Nipple Emissions•Addiction•Straight to Gay•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle Gut•Butt Growth•Getting Taller•Forced Growth•Size Decrease•Size Increase•Hyper Anus •M/M

Slim + Tiny by Harvey Church Pete attends a family reunion planning to remind his cousins how much bigger he is. He wasn’t expecting to find two giant meatheads in their place, hungry to somehow grow even bigger... 4,121 words Added Jul 2023 6,938 views 5.0 stars (13 votes) •Cock Growth•Cock Theft•Huge Cock•Hyper Cock•Hyper Cum•Other Mental Changes•Muscle Growth•Muscle Theft•Muscle/Strength•Public Nudity•Plausible Size Difference•Nonconsensual change •M/M/M

Tank the bouncer by spacevlad 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. 18 parts 35k words Added Jun 2016 Updated 19 Aug 2016 66k views 4.0 stars (34 votes) •Straight to Gay•Muscle Growth•Muscle Gut•Muscle/Strength•Man Scent•Giants•Plausible Size Difference•Size Increase•Getting Fatter•Destruction/Violence•Nonconsensual change•Nonconsensual sex •M/M

When you wish for a bigger cock by UberPump Be careful what you wish for... you may just end up with exactly what you wanted and then some!  Our character wishes upon a falling star that his cock would grow big enough that he could self-suck.  His wording was not specific enough, as his cock grows much, much bigger, forcing his throat to take it all. 2,654 words Added Aug 2023 7,938 views 4.9 stars (19 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Cum Milking•Hyper Cum•Man Scent•Increased Libido•Voice Deepening•Forced Growth•Inflation •M

Doms and Subs by CockTFBoi Kevin brings home a strange card game to play with his husbands. As the three of them begin playing, some of their neighbors start changing to fit the cards being played and the throuple become hornier and hornier the longer they play. 3 parts 13k words Added Nov 2023 Updated 23 Dec 2023 7,649 views 4.6 stars (10 votes) •Always Hard•Cock Growth•Cock Shrinking•Cock Theft•Cockless•Human to Cock•Cum Milking•Always Cumming•Nipple Emissions•Hermaphrodite•Transgender•Addiction•Dom to Sub•Muscle Breast•Muscle Growth•Man Scent•Butt Growth•Increased Libido•Detachable•Transformation•Hair Growth/Getting Hairy•Hairless•Mouthcock•Dom/Sub•Nonconsensual change•Bodily Fluids•Dildos/Toys•Complete •M/M•M/M/M•M/M/M/...

Supermen by Also Known As 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. 9 parts 77k words (#37) Added Oct 2002 90k views 4.2 stars (18 votes) •Cock Growth•Hyper Cock•Multicock•Muscle Growth•Muscle/Strength•Muscle Worship•Getting Handsomer•First Time/Virgin•Hyper Pheromones•Flying

Nightmare at the Pump House Gym by UberPump A bodybuilder encounters a strange man at the local gym who forces him to experience his deepest desires first-hand. The growth is intoxicating, but there’s a price to pay he doesn’t see coming. 7 parts 27k words Added Oct 2020 Updated 8 Jul 2023 42k views 4.8 stars (16 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Public Orgasm•Hyper Muscle•Pec Fucking•Immobility•Muscle Growth•Muscle/Strength•Forced Growth•Halloween •M•M/M•M/M/M•M/F

Roommate juice by TheSizeKing Jacob, a nerdy and skinny college student, gets randomly assigned to live with a transfer student his junior year. Braden, the transfer, makes quite an entrance on move-in day.  1,640 words Added Dec 2023 8,317 views 4.5 stars (14 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Muscle Growth•Muscle/Strength•Muscle Worship•Man Scent•Butt Growth•Voice Deepening•Getting Taller•Plausible Size Difference•Size Increase•Dom/Sub •M/M

The pump by UberPump A young man and his wife find themselves at the mercy of a cock pump.  He's already quite big at 9 inches long, but how much bigger can he go and will they find a limit to his size? 2 parts 7,269 words Added Jan 2023 Updated 1 Apr 2023 14k views 4.6 stars (17 votes) •Cock Growth•Cock Pumping•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Cum Milking•Hyper Cum•Addiction•Increased Libido•Forced Growth•Inflation•Bisexual•Hetero Sex •M/F•M/F/F

Graham by Giant Worshipper and westone tiny 10 parts 55k words (#61) Added Nov 2009 Updated 31 Dec 2010 100k views 4.6 stars (24 votes) •Size Increase

Dormitory hex by Harvey Church This freshman hasn’t been able to keep his eyes off his new RA’s package. He can only imagine all the things he would do if he was that hung. Is he ready to handle a cock that massive? 1,004 words Added Jul 2023 7,141 views 5.0 stars (12 votes) •Cock Growth•Cock Theft•Hyper Cock•Hyper Cum•Nonconsensual change•Stories with Images •M

A close encounter by King Dave Evan is not alone in his apartment. Something that wants to study him. Is that all that it wants? 3 parts 7,234 words Added Dec 2021 Updated 8 Jan 2022 11k views 4.8 stars (23 votes) •Cock Growth•Muscle Growth•Butt Growth•Getting Handsomer•Voice Deepening•Hair Growth/Getting Hairy•First Time/Virgin•Aliens•Shapeshifting •M/M

Room for more by BRK You don’t always get all the facts when you become roommates with someone. Like, for example, whether they have an insatiable hunger for extra-long cocks, like the one you’re secretly hiding in your pants. 2,284 words Added Apr 2022 7,406 views 4.8 stars (15 votes) •Cock Growth•Huge Cock•Self-suck•Hyper Cum •M•M/M/M

Incubus dreams by JJ Staxx Blake is stuck in a bathroom at the gaming hub with a problem that’s only getting bigger. 15 parts 18k words Added Apr 2023 Updated 2 Sep 2023 17k views 4.9 stars (23 votes) •Cock Growth•Huge Cock•Nonconsensual change•Incubus/Succubus•Witch/Warlock/Wizard•Stories with Images •M/M

Alpha by CharitysSongbird 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. 14k words Added Aug 2018 46k views 4.7 stars (14 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Muscle Growth•Muscle/Strength•Transformation•Getting Taller•Size Increase•Dom/Sub•Anthro/Furry•Werewolves •M/M

Cursed to swell with cum by BigManBigBelly Max, like so many others, is powerless to resist Damien’s charm and blessed to be stretched open by his enormous meat. But his seed proves more potent than Max could have imagined… And possibly more than he can handle. 2,974 words Added Mar 2022 17k views 4.3 stars (10 votes) •Cum inflation•Cum Milking•Hyper Cum•Nipple Emissions•Immobility•Belly Growth•Size Increase•Getting Fatter•Infectious•Supernatural •M/M

Damien by bulkscribe 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. 5 parts 16k words Added Aug 2020 Updated 12 Dec 2020 36k views 5.0 stars (19 votes) •Muscle Growth•Belly Growth•Getting Taller•Giants•Plausible Size Difference•Size Increase•Getting Fatter

Andy finds Cockr gives and takes away by Clearlyhere 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. 5 parts 14k words Added Oct 2017 Updated 1 Jun 2019 37k views 4.7 stars (42 votes) •Cock Growth•Cock Shrinking•Huge Cock•Muscle Breast•Muscle Growth•Muscle/Strength•App•Dom/Sub •M/M•M/M

Supersized by Musclesaber After an experiment gone wrong, Max unexpectedly grows into a giant. After being saved by his superhero crush, Amplified, the pair tries to get the giant man’s growth under control. 2 parts 5,286 words Added Nov 2020 14k views 5.0 stars (8 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Muscle Growth•Belly Growth•Getting Taller•Giants•Superhero/Supervillain •M/M

Mimbo drops by Absman420 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. 2 parts 14k words Added Jul 2011 58k views 4.7 stars (34 votes) •Cock Growth•Huge Cock•Getting Dumber•Straight to Gay•Muscle Growth•Muscle/Strength•Transformation•Nonconsensual change•Nonconsensual sex•Mind Control •M/M

Unexpected growth spurt by rusalko 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. 6 parts 11k words Added Dec 2012 Updated 3 Feb 2017 64k views 5.0 stars (18 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Plausible Size Difference•Size Increase •M/M

Adam’s first growth spurt by MDS 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. 2,350 words Added Nov 2016 56k views 4.3 stars (15 votes) •Huge Cock•Muscle Growth•Muscle/Strength•Giants•Size Increase•Incest•Brothers

My son, the superstud by Max Mann 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. 3,842 words Added Oct 2003 117k views 4.0 stars (36 votes) •Cock Growth•Huge Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Age Difference•Incest•Father/Son •M

Enlargement by Boston Guy A medical engineer develops nanotechnology that could cure the world of multiple diseases. But his true motivation is not so noble. 5 parts 15k words Added May 2013 60k views 4.6 stars (29 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Increased Libido•Gradual Change•Transformation•Size Increase•Nanotech•Nonconsensual change•Infectious•Hyper Anus •M/M•M/M/M•M/M/M/...

Transform by Also Known As 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. 35 parts 132k words (#8) Added Oct 2002 59k views 5.0 stars (11 votes) •Cock Growth•Ball Growth•Huge Cock•Prehensile Cock•Multicock•Muscle Growth•Muscle/Strength•Muscle Worship•Voice Deepening•Hyper Pheromones•Infectious•Flying •M/M•M/M/M

Suggestion box by BRK Ray’s job is to go through the suggestion box at his landmark menswear store. What he’s not expecting is that one of the cards has a suggestion for him. 2,663 words Added May 2020 9,547 views 4.4 stars (14 votes) •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Retcon•Suggestion•Complete •M/M•M/M/M

Bending the straight boys by iciss 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. 2 parts 11k words Added Jan 2008 74k views 4.7 stars (39 votes) •Cock Growth•Huge Cock•Public Orgasm•Straight to Gay•Muscle Growth•Muscle/Strength•Getting Handsomer•First Time/Virgin•Incest•Brothers•Twins•Nonconsensual change•Infectious •M/M•M/M/M

Irresistible immobility by SomeMuscleGuy and BawlzyS James awakens to find himself strapped to a table in an ominous room with a masked, muscular man who has more than enough candy to share. This candy has some massive side effects, whether James wants it or not. 7,662 words Added Oct 2022 17k views 4.8 stars (18 votes) •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Multi-abs•Addiction•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle Worship•Transformation•Voice Deepening•Getting Taller•Giants•Forced Growth•Size Increase•Destruction/Violence•Nonconsensual change•Restraints•Halloween•Complete•Stories with Images •M/M

Adventures of an Ivy League himbo by iHeywood This is a story all about how Liam Montgomery became the best himbo ever while a student at an Ivy League university. 2 parts 5,749 words Added Jun 2022 12k views 4.9 stars (18 votes) •Huge Cock•Hyper Cock•Nipcocks•Hyper Cum•Nipple Emissions•Multicock•Male Pregnancy•Incest•Father/Son•Set in the Future•Hyper Anus •M/M•M/M/M

Kenji by Dream Big The new stock guy at work, Kenji, is Sam’s pure fantasy—cute, tall, muscled, cheeky, and packing—and Kenji seems just as appreciative. There’s a secret about how Kenji got that way, though, which Sam accidentally discovers the hard way. 6 parts 19k words Added Feb 2019 Updated 2 Mar 2019 24k views 4.9 stars (17 votes) •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•Race/Ethnicity Change•Nanotech •M/M

Daddy’s little boy by TonnyGiant Jimmie returns home from college for the summer to rediscover just how drawn he is to his massive, muscle bear stepfather. 2 parts 4,961 words Added Sep 2018 Updated 11 May 2019 34k views 4.7 stars (13 votes) •Huge Cock•Muscle Gut•Muscle/Strength•Plausible Size Difference•Age Difference•Incest•Father/Son•Dom/Sub •M/M

The salt by RdyRoger 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. 9 parts 36k words Added Jun 2010 87k views 4.8 stars (22 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Muscle Worship•Increased Libido•Gradual Change•Getting Taller•Size Increase•Tongue Growth•Incest•Brothers

Cursed cocks by CockTFBoi Marcus is having a horny night in the dorm when an inadvertent wish by his roommate sends him on a path to a new life. 8 parts 25k words Added Aug 2020 26k views 4.0 stars (8 votes) •Cock Growth•Cock Shrinking•Cum inflation•Hyper Cum•Public Orgasm•Female to Male•Addiction•Straight to Gay•Muscle Growth•Man Scent•Increased Libido•Gradual Change•Hair Growth/Getting Hairy•Hairless•Nonconsensual change•Hyper Pheromones •M•M/M•M/M/M/...•M/F

The phallus god of destiny by UberPump Benjamin has been possessed by a Japanese demon called an Oni, one who possesses the power to create the desires of those whom it possesses.   He has the desire to get what he wants—a bigger cock, a bigger body, and much bigger pecs.  Once he's fulfilled the divine duty of cock fucking the statue, he's imbued with great power to turn anyone into hyper muscled, big, dicked followers... only he must fulfil his duties as a newly-grown deity or face the consequences that, if unused, power must be stored somewhere. 5,280 words Added Jul 2023 8,368 views 4.8 stars (9 votes) •Cock Growth•Cockfucking•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Cum Milking•Always Cumming•Hyper Cum•Nipple Emissions•Hyper Muscle•Muscle Breast•Muscle Growth•Muscle/Strength•Muscle Worship•Public Nudity•Voluptuous Men•Increased Libido•Getting Handsomer•Voice Deepening•Forced Growth•Size Increase•Inflation•Bisexual•Absorption•Hyper Pheromones•Djin/Jinn/Genie•Supernatural•Possession •M•M/M

Addiction by Hatman “… I gotta have more! I need more! Give… me… MORE!” pleads our young scientist. 1,916 words Added May 2010 40k views 4.2 stars (14 votes) •Cock Growth•Huge Cock•Cum inflation•Hyper Cum•Stretchy•Hyper Anus

The swimming hole by JayPat 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… 8 parts 43k words (#90) Added Sep 2018 32k views 4.9 stars (13 votes) •Muscle Growth•Muscle/Strength•Giants•Size Increase•Destruction/Violence•Nonconsensual change•Complete •t/t

Red pills by MaxMorphs 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.) 19 parts 54k words (#65) Added Jan 2017 Updated 27 Mar 2021 59k views 4.7 stars (21 votes) •Cock Growth•Huge Cock•Hyper Cock•Addiction•Hyper Muscle•Immobility•Muscle Growth•Muscle Gut•Muscle/Strength•Getting Taller•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy •M/M•M/M/M

Alpha fitness by Genetonic High school nerd Jeff keeps getting bullied by muscle jock Travis… until he has a lucky encounter with the new ‘Alpha’ brand clothing line. 2,712 words Added Mar 2021 20k views 4.5 stars (11 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Foot Growth•Getting Taller•Size Increase•Hair Growth/Getting Hairy•Humiliation

More than expected by LennoxBear 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. 5 parts 20k words Added Jul 2002 98k views 4.3 stars (22 votes) •Cock Growth•Huge Balls•Huge Cock•Cum Milking•Nipple Emissions•Straight to Gay•Muscle Breast•Muscle Growth•Muscle/Strength•Hair Growth/Getting Hairy•First Time/Virgin•Nonconsensual change•Infectious •M/M

It was one of those weekends by Zeke A meat pumper’s dream weekend! 5,656 words Added Apr 2020 8,467 views 5.0 stars (12 votes) •Cock Growth•Cock Pumping•Huge Cock•Cannabis •M/M

Modern rites by red_king 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. 16 parts 47k words (#79) Added Dec 2018 Updated 4 Jun 2022 38k views 4.7 stars (38 votes) •Cock Growth•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Pec Fucking•Muscle Breast•Muscle Growth•Butt Growth•Getting Handsomer•Transformation•Plausible Size Difference•Size Increase•Destruction/Violence•Restraints•Pagan gods•Supernatural•Immortality•Hyper Anus •M/M•M/M/M

Drunk on cum by Musclesaber Commission for an anonymous twitter user. After finding a magic spell to make his balls grow bigger, Afonso wants to test out his new equipment on his boyfriend Gus, only to find there might be a few side effects that they didn’t expect. 4,358 words Added Oct 2023 9,474 views 4.7 stars (13 votes) •Cock Growth•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Hyper Muscle•Immobility•Muscle Growth•Muscle/Strength•Stretchy•Belly Growth•Getting Taller•Giants•Plausible Size Difference•Size Increase •M/M

Alex’s gift by Will Bowden A teen discovers his shapeshifting ability, which seems to be tied to the horniness of other guys. 3 parts 4,345 words Added Apr 2003 41k views 4.6 stars (17 votes) •Incest•Brothers•Shapeshifting •t/t

Untamable by ZeroZeroNull A very drunk guy gets back home after his birthday party only to find a strange gift waiting for him… 3,533 words Added Nov 2019 11k views 4.8 stars (8 votes) •Cock Growth•Self-suck•Muscle Growth•Man Scent•Size Increase•Human to Animal/Anthro•Anthro/Furry •M

Compromised by BRK Ordered to recontain a damaged, wildly radioactive experiment, Warin experiences disaster when his state-of the-art hazmat suit is suddenly breached in mid-operation. 2,490 words Added Dec 2023 5,484 views 4.8 stars (8 votes) •Always Hard•Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Public Orgasm•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle/Strength•Public Nudity•Giants•Forced Growth•Size Increase•Nonconsensual change •M

The need to obey by Musiker 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. 10 parts 56k words (#58) Added May 2019 Updated 20 Nov 2021 37k views 4.8 stars (25 votes) •Cock Shrinking•Huge Balls•Huge Cock•Nipcocks•Nosecock•Multicock•Multiarm•Multilimb•Gender Swap•Other Mental Changes•Straight to Gay•Muscle/Strength•Crotchhead•Body Parts in Strange Places•Stretchy•Butt Growth•Belly Growth•Foot Growth•Getting Taller•Giants•Plausible Size Difference•Size Decrease•Size Increase•Hair Growth/Getting Hairy•Hyper Tongue•Suggestion•Bisexual•Hetero Sex•Cock Cage•Dom/Sub•Sex-Slave•Rubber/Latex•Immortality •M/M•M/M/M

So much cum by Delinqual 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. 2,165 words Added May 2012 137k views 4.4 stars (22 votes) •Hyper Cum

The Vale by CockTFBoi When Kurt inherits a remote mansion from his uncle, he decides to spend the summer there with his friends. Andy and Oliver join him at the start of the summer to explore the house, but the place is surrounded by a huge valley located deep in the wilderness far from civilization. As strange events begin to unfold, the trio must figure out what is happening to them. 5 parts 34k words Added May 2023 Updated 30 Sep 2023 11k views 4.9 stars (16 votes) •Always Hard•Cock Growth•Cut to Uncut•Cock Shrinking•Cock Theft•Cockless•Huge Balls•Ball Growth•Human to Cock•Cum inflation•Cum Milking•Always Cumming•Hyper Cum•Boytaur•Four Legs•Butch-to-Fem•Muscle Growth•Always Shirtless•Public Nudity•Pointy Ears•Voluptuous Men•Butt Growth•Increased Libido•Gradual Change•Transformation•Size Decrease•Human to Inanimate•Hairless•Getting Fatter•Cock Cage•Dom/Sub•Nonconsensual sex•Restraints•Dildos/Toys•Anthro/Furry•Orcs•Werewolves •M•M/M•M/M/M•M/M/M/...

Magic throat by Harvey Church A size-obsessed Alpha male moves to Dallas for a new job. While searching for some new bottoms to dominate, he finds Perry, an over-eager bottom that brags about his “Magic Throat”. Seems like there’s more to that claim than anticipated. 7,506 words Added May 2022 15k views 5.0 stars (36 votes) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle Worship•Getting Taller•Plausible Size Difference•Size Decrease•Dom/Sub •M/M

Costumemania: The sticky super suits by Redouan Robin and Sven are two nerdy friends working at an office. They both love superheroes but are too invested in their office life to take the hobby further. But something is about to change this as they receive two costumes to wear for an upcoming event. 15 parts 57k words (#56) Added Aug 2020 Updated 22 Oct 2022 24k views 4.9 stars (13 votes) •Cock Growth•Gender Swap•Straight to Gay•Hyper Strength•Muscle Growth•Muscle Worship•Man Scent•Getting Taller•Size Increase•Dom/Sub•Nonconsensual change•Lycra/Spandex•Witch/Warlock/Wizard•Superhero/Supervillain•Flying •M/M•M/M/M

The swelling exposure by Lionel E. Linklander When a young man finds cock growth pills to impress his boyfriend Jimmy, he gets carried away. The result is his small member growing and getting bigger and bigger in public. And Jimmy is enjoying every minute of the growth… 4,274 words Added Aug 2023 9,182 views 4.6 stars (11 votes) •Cock Growth•Cock Pumping•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Cum inflation•Cum Milking•Hyper Cum•Muscle Growth•Muscle Worship•Public Nudity•Man Scent•Belly Growth•Feeding•Gradual Change•Forced Growth•Inflation•Dom/Sub •M/M

Dad’s water balloon by PumpedBalloon Your step-dad is home alone with you for the week and on the first day, you and he discover a new bond through some exploration. You discover what it's like to feel a man in your mouth as he gets bigger in more ways than one. 3,858 words Added May 2023 6,854 views 5.0 stars (14 votes) •Huge Balls•Huge Cock•Man Scent•Belly Growth•Inflation•First Time/Virgin•Father/Son •M/M

Ever growing by MaxMorphs 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. 4,842 words Added Sep 2016 40k views 4.1 stars (14 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Bisexual•Hetero Sex

The swimming hole: legacy by Azerreza When Nick moves to a new city he hears rumours that it had once been partially destroyed by muscular titans. Not believing it at first, he decides to ignore them. But sometimes… rumours aren’t really rumours! And if it were true that there was a way to grow like that, could he use it to seduce the secret love of his life? 3 parts 35k words Added Aug 2021 Updated 18 Sep 2021 21k views 4.8 stars (11 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Public Orgasm•Multi-abs•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Increased Libido•Gradual Change•Voice Deepening•Getting Taller•Plausible Size Difference•Size Increase•First Time/Virgin •M/M

A Tale of Two Brothers: Donnie & Marco by Artotter92 Two brothers end up the unwilling subjects of their father’s science experiments, with some pretty extreme results. 3,937 words Added Jan 2023 10k views 4.1 stars (14 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Muscle•Muscle Breast•Muscle Growth•Muscle/Strength•Butt Growth•Increased Libido•Gradual Change•Transformation•Voice Deepening•Forced Growth•Size Increase•Age Progression•Hair Growth/Getting Hairy•Incest•Brothers•Stories with Images •M/M

Kyle’s himbo transformation by Joven Kyle goes on vacation with some friends, then starts to experience a few sudden and unexplained changes. 14 parts 19k words Added Nov 2021 Updated 25 Dec 2021 33k views 4.8 stars (25 votes) •Cock Growth•Huge Balls•Huge Cock•Self-suck•Straight to Gay•Pec Fucking•Muscle Growth•Butt Growth•Gradual Change•Dom/Sub•Nonconsensual change •M/M•M/M/M

The pills by LordTronimator An 18-year-old college student, Thomas, orders some pills online that promise to help him with his small problem. When they don't work fast enough for him, he decides to down the whole bottle—and gets more than he bargained for. 12 parts 16k words Added Apr 2020 Updated 16 May 2020 24k views 4.7 stars (21 votes) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Cum Milking•Hyper Cum•Public Orgasm•Public Nudity•Increased Libido•Nonconsensual change•Restraints•Horror •t/t

The elevator ride by BRK Another long, boring elevator ride… and you’ve resisted messing with your coworkers for so long. 3 parts 5,689 words Added Feb 2020 Updated 12 Mar 2022 17k views 4.5 stars (36 votes) •Cock Growth•Huge Cock•Self-suck•Extra digits•Multicock•Multiarm•Multilimb•Replication•Muscle Growth•Muscle/Strength•Always Shirtless•Getting Handsomer•Getting Taller•Tongue Growth•Retcon•Suggestion•Selfcest•Bisexual•Gay Pride•Shapeshifting•X-Ray Vision•All Dialog•Complete •M/M•M/M/M

Daddy’s boy by Seth Peterson What happens when a cocky, overly narcissistic businessman oversteps courtesy? Why, muscle-growing, mind-altering, submission-inducing karma, of course! 2,534 words Added Jun 2018 34k views 4.8 stars (14 votes) •Cock Growth•Huge Cock•Nipple Emissions•Getting Dumber•Straight to Gay•Muscle Breast•Muscle Growth•Muscle/Strength•Hair Growth/Getting Hairy•Dom/Sub•Humiliation •M/M

Barbaric times by alwaysmyway Hockey star Brett is seething with anger and bitterness after his rival has taken his leadership of the team and his girl, when a strange voice offers to show him the barbarian path to revenge. 3,449 words Added Aug 2012 24k views 4.1 stars (8 votes) •Cock Growth•Huge Cock•Other Mental Changes•Muscle Growth•Muscle/Strength•Size Increase•Hair Growth/Getting Hairy•Destruction/Violence•Nonconsensual sex•Supernatural •t•t/t

Drawn together by Johnny29 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. 7 parts 14k words Added Sep 2012 33k views 5.0 stars (43 votes) •Cock Growth•Huge Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Increased Libido•Getting Handsomer•Getting Taller•Size Increase•Hairless •M/M

Under control by MaxMorphs 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. 5 parts 22k words Added Apr 2020 Updated 8 Aug 2020 40k views 4.9 stars (34 votes) •Cock Growth•Huge Balls•Huge Cock•Nipple Emissions•Muscle Growth•Muscle/Strength•Butt Growth•Gradual Change•Getting Taller•Size Increase •M/M

Nobody’s perfect by Also Known As A psychologist prepares himself to meet the subject whose response to the enhancement drug was so intense that just to be near him is to risk erotic overload… a man known only as Twenty-Five. 9 parts 54k words (#66) Added Feb 2022 Updated 8 Jul 2023 36k views 4.9 stars (32 votes) •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Increased Libido•Getting Handsomer•Transformation•Voice Deepening•Getting Taller•Plausible Size Difference•Size Increase•Hyper Pheromones•Infectious•Metabods 25 •M/M

Bulking by Proteus Sometimes, when people have a crush on their hunky roommate, they act on it by secretly trying to make the guy progressively hotter. 6 parts 7,143 words Added Mar 2013 54k views 4.5 stars (21 votes) •Muscle Growth•Muscle Gut•Muscle/Strength•Butt Growth•Gradual Change•Hair Growth/Getting Hairy •M/M

The filling by UberPump Jason has a knack for pumping his cock and balls up with air or water, reveling in the increased size before cumming it out of him. When he attends a Halloween costume party, his drunken behavior leads him to explore his personal limits at the pool. However, once he begins he can’t stop, only attracting the attention of the muscleheads around him. 4,045 words Added Oct 2020 20k views 4.8 stars (13 votes) •Cock Growth•Cock Pumping•Cock Vore•Huge Balls•Ball Growth•Hyper Cock•Hyper Cum•Immobility•Humiliation•Nonconsensual change•Halloween •M/M/M

The next big thing by Ziel Johnny, a young model/actor trying to make it in Hollywood, always knew he was destined to be The Next Big Thing.  2 parts 2,909 words Added May 2023 Updated 6 Jan 2024 10k views 5.0 stars (6 votes) •Cock Growth•Muscle Growth•Getting Handsomer•Gradual Change•Getting Taller•Size Increase •M

The secret repository by BRK Angelo and Justin explore a seemingly abandoned bunker where they discover a much bigger secret than they could ever have imagined. 2,324 words Added Jun 2019 9,314 views 4.6 stars (13 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Complete •M/M

Abyssus Abbey by Pen Darke Welcome to Abyssus Abbey… a place where monks study and summon demons in an attempt to prevent the Apocalypse. The demons are in the walls, listening to your words, your thoughts, your desires, and if you fall prey to any of the Twelve Temptations, you may find yourself changed in ways you may not have expected. The Abbey has always drawn and doomed those who seek power and knowledge, and if you’re lucky, you might find something else there: a change in your outlook, a surprising ability, a friend where no friend was expected, and even romance. But all pleasures come with a price, and sooner or later the devil will have his due. Come in. Join the damned. 17 parts 125k words (#14) Added Feb 2020 Updated 16 May 2020 28k views 4.9 stars (70 votes) •Self-suck•Multicock•Straight to Gay•Muscle Growth•Muscle/Strength•Belly Growth•Transformation•Size Increase•Anthro/Scaly•Demons•Incubus/Succubus•Ogres•Satyrs•Witch/Warlock/Wizard•Fantasy Realm•Horror•Pagan gods•Supernatural •M/M•M/M/M

Another big morning by Thatbadwriter It never fails. You’re sitting there on the living room floor with your cereal trying to watch some TV, when your dad comes down and decides Saturday morning is the perfect time to start growing and getting himself off. And then your horny brother comes home… 1,226 words Added Nov 2020 26k views 4.2 stars (5 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Giants•Size Increase•Incest•Brothers•Father/Son•Destruction/Violence•Complete •M

Gaining roommates by MaxMorphs Ben’s enormous gut seems like it can’t get any bigger. Does that sound like a challenge to you? 5,341 words Added May 2020 23k views 4.4 stars (13 votes) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Getting Taller•Size Increase•Getting Fatter•Vore •M/M

Just a little bigger by Dream Big 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. 15 parts 31k words Added Dec 2019 Updated 7 Mar 2020 34k views 4.7 stars (18 votes) •Cock Growth•Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•Increased Libido•Breast Expansion•Gradual Change•Transformation•Getting Taller•Bisexual•Hetero Sex •M/M•M/F•M/M/F

Let’s play a game by Musclesaber Four men wake up in spandex body suit with a familiar board game laid out in front of them, only to mind a masked man willing to fulfill their wildest dreams if they're willing to play. 1,999 words Added Nov 2023 5,629 views 4.5 stars (14 votes) •Cock Growth•Muscle Growth•Butt Growth•Forced Growth•Size Increase•Stories with Images •M/M•M/M/M/...

No reason by MaxMorphs 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. 3 parts 12k words Added Jan 2017 Updated 5 Nov 2022 48k views 4.8 stars (26 votes) •Huge Cock•Nipcocks•Nipple Emissions•Muscle Breast•Muscle Growth•Muscle Gut•Muscle/Strength•Belly Growth•Size Increase•Christmas •M/M

Bear’s den by Pfefferooney 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. 3 parts 9,022 words Added Mar 2019 Updated 11 May 2019 37k views 4.8 stars (14 votes) •Cock Growth•Cockfucking•Huge Balls•Huge Cock•Hyper Cock•Nipple Emissions•Muscle Growth•Muscle/Strength•Belly Growth•Size Increase•Hair Growth/Getting Hairy•Infectious •M/M

5D Super User: Brandon by pkak2k12 Brandon finds out he has an unexpected gift the second he becomes 18. 11 parts 23k words Added Jan 2023 Updated 18 Mar 2023 29k views 4.9 stars (69 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Muscle Growth•Muscle/Strength•Muscle Worship•Gradual Change•Getting Taller•Size Increase•Retcon•Incest•Bisexual •t/t

My best friend’s muscles by Mikeytron A group of horny gay researchers develop a new compound that allows unprecedented muscle growth. 5 parts 17k words Added Sep 2021 Updated 13 Nov 2021 35k views 4.8 stars (65 votes) •Hyper Muscle•Muscle Growth•Muscle Gut•Muscle/Strength•Gradual Change•Complete •M/M

Sunday night at the bear bar by Tym Greene When four fellows driving home from a fishing trip run out of gas in the little town of Arkadios, they find that the local tavern is a bit...unusual. 5,665 words Added Jan 2024 1,353 views 5.0 stars (7 votes) •Self-suck•Transformation•Age Progression•Human to Animal/Anthro•Incest•Brothers•Father/Son•Anthro/Furry•Alcohol •M/M•M/M/M

The beefening by Benjamin Skipper Spencer's roommates have been growing into huge hulking beasts, focused on working out, having sex… and now, turning Spence into one of them! 2,274 words Added Feb 2018 54k views 4.4 stars (36 votes) •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle Gut•Muscle/Strength•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Dom/Sub•Nonconsensual change •M/M•M/M/M

Be careful what you wish for by Tereshky “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. 9 parts 42k words (#92) Added Feb 2020 Updated 19 Jun 2021 56k views 4.8 stars (19 votes) •Cock Growth•Huge Balls•Huge Cock•Straight to Gay•Immobility•Muscle Growth•Muscle/Strength•Age Regression•Nonconsensual change •M/M

Diner by BRK Clint tries out a diner near his new house, but ends up with more than he bargained for. 3,976 words Added Oct 2023 6,722 views 4.3 stars (12 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Public Orgasm•Pec Fucking•Hyper Strength•Muscle Growth•Increased Libido•Foot Growth•Gradual Change•Transformation•Getting Taller•Giants•Forced Growth•Plausible Size Difference•Size Increase•Destruction/Violence•Nonconsensual change•Complete •M

Just between fiends by Cumguts Regular buff guy Dean is met with an unwanted guest (or two) over breakfast. Things get considerably stickier when he tries to get rid of them. 3,422 words Added Nov 2020 11k views 4.6 stars (11 votes) •Hyper Cock•Cum inflation•Hyper Cum•Muscle Breast•Voluptuous Men•Demons•Hyper Anus •M/M•M/M/M

Bull’s gene by Opin Dean goes on a date with Henry, a huge professor, whose strength exceeds every expectation. 8 parts 12k words Added Aug 2020 Updated 15 Oct 2022 42k views 4.7 stars (25 votes) •Always Hard•Huge Cock•Hyper Cock•Always Cumming•Hyper Cum•Nipple Emissions•Public Orgasm•Hyper Strength•Muscle Growth•Muscle Gut•Muscle/Strength•Muscle Worship•Getting Taller•Giants•Plausible Size Difference•Size Increase •M/M

Transform: Muscle City by Also Known As 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. 21 parts 120k words (#15) Added Jan 2014 47k views 4.1 stars (17 votes) •Always Hard•Cock Growth•Huge Cock•Multicock•Straight to Gay•Muscle Growth•Muscle/Strength•Muscle Worship•Getting Handsomer•Size Increase•Infectious •M/M•M/M/M

Incubus by CentaurQuinn Ken discovers his friend with benefits is more than he seems, and might be a solution to a problem at work. 2,534 words Added Oct 2020 13k views 4.8 stars (33 votes) •Cock Growth•Wings•Hyper Muscle•Muscle Growth•Transformation•Getting Taller•Inflation•Infectious•Incubus/Succubus•Supernatural•Immortality•Shapeshifting •M/M

The legend of Ben by TreborNawoc When Ben found out the things he could do with his body, he became very popular with all of his randy dormmates. 3 parts 5,841 words Added Jul 2021 Updated 7 May 2022 16k views 5.0 stars (205 votes) •Cock Growth•Cock Vore•Huge Cock•Hyper Cock•Prehensile Cock•Self-suck•Hyper Cum•Public Orgasm•Multicock•Multihead•Multiarm•Multilimb•Replication•Body Parts in Strange Places•Stretchy•Inflation•Mouthcock•Selfcest•Shapeshifting •M/M/M/...

Twelve steps back by FanTCMan 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. 9 parts 33k words Added Nov 2003 Updated 30 Mar 2018 34k views 4.8 stars (22 votes) •Cock Growth•Huge Balls•Huge Cock•Addiction•Other Mental Changes•Straight to Gay•Muscle Growth•Muscle/Strength•Muscle Worship•Increased Libido•Getting Handsomer •M/M

Jock bros by John Perrot Derek convinces his friend Matt to get ‘jocked up’. They never imagined the growth that would follow… 4,800 words Added Feb 2021 30k views 4.7 stars (42 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Muscle Growth•Muscle/Strength•Belly Growth•Gradual Change•Getting Taller•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Complete •t/t

Blood lust by muscl4life The vampire Drago plots his revenge against his twin brother, Draco, and Kevin, Danny, and Greg get caught in the middle. 3 parts 9,393 words Added Nov 2013 29k views 4.4 stars (8 votes) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Size Increase•Incest•Twins•Nonconsensual change•Vampires•Werewolves•Halloween •M/M

Titanification by JayPat 8 parts 30k words Added Oct 2012 41k views 4.5 stars (12 votes) •Huge Cock•Hyper Strength•Muscle Growth•Muscle Theft•Muscle/Strength•Muscle Worship•Giants•Size Increase•Destruction/Violence

Twinmaster by BRK You can get lots of strange stuff on eBay—even a Twinner 3000. And if you’re obsessed with twins, you might just buy it even if there’s no chance in hell it could possibly work. 4 parts 3,500 words Added Mar 2004 10k views 4.9 stars (12 votes) •Cock Growth•Huge Cock•Multicock•Replication•Muscle Growth•Muscle/Strength•Selfcest•Complete •M/M•M/M/M

Little bro by Ziel 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. 5,382 words Added Apr 2017 46k views 4.7 stars (19 votes) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Giants•Size Increase•Incest•Brothers

The biggest so far by MaxMorphs I’ve always been fascinated by big penises, ever since I can remember. And so it happened that after finding my first legendary dick, the titanic cocks just kept coming. It almost felt like I was destined to find and pleasure them. My luck is limitless. And so, apparently, are some guys’ dicks. Here are some stories of guys I’ve been with. 7 parts 7,872 words Added May 2022 Updated 27 May 2023 19k views 4.8 stars (28 votes) •Cock Growth•Cock Pumping•Huge Cock•Hyper Cock •M/M

The acolytes by Richard Jasper It all started with an arm-wrestling contest. Blond surfer god Mike Schnelling, 5’10”, 175 lbs., wanted to take me on. Which was fine but I had 50 lbs. on him, all muscle. We never could have imagined how it would all turn out! 7 parts 8,050 words Added Aug 2020 24k views 4.5 stars (11 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•Hair Growth/Getting Hairy •M/M

An app for the ages by Seth Peterson 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? 3,147 words Added Dec 2018 37k views 4.9 stars (24 votes) •Cock Growth•Huge Cock•Butch-to-Fem•Getting Dumber•Straight to Gay•Muscle Breast•Muscle Growth•Muscle/Strength•Getting Taller•Hair Growth/Getting Hairy•App•Nonconsensual change •M/M

Crafting my cousin by Fallon Ives Yusef’s cousin Hadi introduces him to a new game with a surprisingly detailed character creator. Might as well go wild with it, right? When Hadi hacks the game, however, changes made to their characters start to have strange effects on the real world. 7,243 words Added Feb 2022 9,800 views 4.5 stars (6 votes) •Cock Growth•Cock Theft•Muscle Growth•Transformation•Getting Taller•Plausible Size Difference•Size Decrease•Size Increase•Race/Ethnicity Change•Getting Fatter•App•Orcs•Fantasy Realm •M/M

That’s a really huge cock, bro by Luke B. Just a down and dirty story about one jock stud finding out his muscle-bound jock buddy is hung like a mule—and growing. 3,726 words Added Nov 2016 51k views 4.8 stars (46 votes) •Cock Growth•Huge Cock•Hyper Cock•Straight to Gay•Muscle Growth•Muscle/Strength•All Dialog •M/M

The trainer by Also Known As Needing a new trainer, Thomas finds onewho can push him to the next level, and then some. 7 parts 22k words Added Jan 2014 25k views 5.0 stars (13 votes) •Always Hard•Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase •M/M

Bottom mega-alfa by Jerkoffcentral 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. 8 parts 22k words Added Nov 2014 Updated 22 Dec 2017 75k views 4.7 stars (60 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Hair Growth/Getting Hairy•Dom/Sub•Nonconsensual change•Werewolves •M/M

Young Buck by Proteus Buck’s admiration for the size and beauty of the gym’s hottest, most arrogant stud, Nate, will be all the greater when he possesses those qualities for himself. 1,375 words Added Feb 2022 13k views 4.7 stars (9 votes) •Cock Growth•Cock Shrinking•Cock Theft•Muscle Growth•Muscle Theft•Muscle/Strength•Size Decrease•Size Increase•Age Progression•Age Regression•Dom/Sub•Nonconsensual change•Metabods 25 •M/M

Musclove, Texas by Max Mann 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). 9 parts 26k words Added Sep 2004 73k views 4.8 stars (51 votes) •Cock Growth•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Age Difference•First Time/Virgin•Incest•Brothers•Father/Son•Twins•Restraints

Novus homo by BRK An FBI agent interrogates an uncommonly attractive young man caught hiding during a trafficking raid. Is he a victim, a coconspirator, or something else entirely? 4 parts 8,483 words Added Jan 2024 4,202 views 4.7 stars (26 votes) •Huge Cock•Replication•Hyper Strength•Muscle Growth•Muscle/Strength•Getting Handsomer•Getting Taller•Nanotech•Age Difference•Nonconsensual change•Complete •M/M

Musky morning by screamingmoist A young man who constantly laments that there aren’t enough “real men” gets more than he bargained for. 4,691 words Added Nov 2022 9,762 views 4.7 stars (7 votes) •Cock Growth•Straight to Gay•Muscle Growth•Muscle Gut•Belly Growth•Transformation•Age Progression•Hair Growth/Getting Hairy•Retcon•Complete •M/M

Sugar packets by RdyRoger Envious of other guys who can grow muscle like it’s nothing, David decides to try some sugar packets left behind by some beachgoing studs. 4 parts 12k words Added Jul 2002 27k views 5.0 stars (6 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength •M/M

No strings attached by muscl4life Donny walks in on his roommate, Sebastian, in the midst of his efforts to make himself bigger. 3 parts 39k words (#97) Added May 2014 53k views 4.5 stars (26 votes) •Cock Growth•Huge Cock•Hyper Cock•Cum inflation•Muscle Growth•Muscle/Strength•Size Increase•Incest•Brothers•Twins•Hypnosis •M/M

The best instructions are those that are clearly stated by Ziel Marty talks his super smart friend into whipping him up a special potion that will help with his little problem. 5,194 words Added Jun 2016 22k views 5.0 stars (11 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Infectious •M/M

The breakthrough by Gigantic Mr.B One lapse in concentration sets off an unstoppable chain of events for an 18-year-old lab intern, Ben. 5 parts 18k words Added Apr 2022 Updated 10 Sep 2022 33k views 4.8 stars (42 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cum•Hyper Muscle•Hyper Strength•Muscle Growth•Butt Growth•Gradual Change•Getting Taller•Size Increase•Infectious •M/M

Growing boys at UMich by iciss Those football jocks in the UMIch gym are about to get a whole lot hotter. 4 parts 7,144 words Added Jan 2007 42k views 4.7 stars (21 votes) •Cock Growth•Huge Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Getting Handsomer•Infectious •M/M

Cool bracelet, bro by BRK 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. 6 parts 20k words Added Feb 2014 Updated 3 Jun 2023 74k views 4.5 stars (53 votes) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Multi-abs•Multi-balls•Multicock•Multihead•Multiarm•Multileg•Multilimb•Three Legs•Multipec•Multitongue•Stacking•Muscle Growth•Muscle/Strength•Retcon•Suggestion•Incest•Brothers •M/M/M•t/t•t/t/t

Grow lamp by Dream Big 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. 10 parts 14k words Added Jun 2018 Updated 29 Jun 2018 36k views 4.7 stars (35 votes) •Cock Growth•Cockfucking•Huge Cock•Hyper Cock•Self-suck•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase •M/M

Coach Barker by Argenti Coach Travis Barker has a special gift, and when he shares this gift with Adam, change begins to unfold around them. 9 parts 19k words Added May 2019 Updated 15 Jun 2019 42k views 4.9 stars (34 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Straight to Gay•Muscle Growth•Muscle/Strength•Getting Taller•Giants•Plausible Size Difference•Size Increase•Infectious •M/t

The cum factory by UberPump A young man and his wife expand the boundaries of what it means to be a cum factory. The young stud, forced to drink the mysterious protein shake over and over again, finds it erotic to see his balls swell as a side effect. This eggs his girl to force him to drink more and push his balls to their limits. 1,465 words Added Jan 2021 13k views 4.5 stars (8 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cum•Hetero Sex

Pup frat by Newbie Pup At the behest of an old friend, Jack joins a frat and finds the initiation to be wilder than his growing- pup-filled dreams. 10k words Added Mar 2023 9,740 views 4.9 stars (30 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Cum inflation•Other Mental Changes•Muscle Growth•Muscle Gut•Muscle/Strength•Muscle Worship•Always Shirtless•Belly Growth•Gradual Change•Transformation•Getting Taller•Plausible Size Difference•Hair Growth/Getting Hairy•Getting Fatter•Inflation•Complete •M/M•M/M/M

My new favorite app, Cockr by Clearlyhere John is out of money and finds out about new app where his huge endowment could make him some serious cash. 5 parts 14k words Added Jun 2017 Updated 15 Sep 2017 38k views 4.7 stars (32 votes) •Cock Shrinking•Cockless•Huge Cock•Muscle/Strength•Butt Growth•Detachable•App•Dom/Sub•Body Swap

Ascension Escape Games by SomeMuscleGuy Welcome to Ascension Escape Games where you have two hours to escape the largest Escape Room in the world—alone! But be careful, if you aren’t quick enough, you may just grow too large before you can find a way out. 6,147 words Added Oct 2022 13k views 4.8 stars (16 votes) •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Hyper Cum•Multi-abs•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Butt Growth•Foot Growth•Transformation•Voice Deepening•Getting Taller•Giants•Size Increase•Destruction/Violence•Nonconsensual change •M

Jolias and Max: The cock rings by Azerreza and Madmutter When Jolias ordered what he thought a simple sex toy for him and his boyfriend Max, just for fun, he had no clue that this ring had many more features and that it would change their lives… 5 parts 34k words Added Sep 2021 Updated 10 Jun 2023 23k views 4.6 stars (17 votes) •Cock Growth•Hyper Cum•Public Orgasm•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Muscle Worship•Increased Libido•App•Lycra/Spandex•Superhero/Supervillain •M/M

NAUGHTY by Ziel Parker has been dreading returning home for the holidays. His asshole older brother will be there, and that can only spell more misery... unless Parker gets some help from a different kind of Christmas Spirit. 8,792 words Added Dec 2023 4,213 views 4.9 stars (7 votes) •Cock Shrinking•Cock Theft•Huge Balls•Ball Growth•Huge Cock•Cock Body•Hyper Cock•Muscle Growth•Brothers•Nonconsensual change•Supernatural•Christmas •M/M

Resolutions by BRK Ray intercepts a seemingly magical book of fill-in-the-blank New Year’s resolutions his boss, Danny, had ordered, and starts making plans for improving Danny’s too-boring sex life. 13 parts 71k words (#41) Added Jan 2021 Updated 12 Feb 2022 38k views 4.9 stars (36 votes) •Cock Growth•Huge Balls•Huge Cock•Self-suck•Hyper Cum•Other Mental Changes•Hyper Muscle•Muscle Growth•Muscle/Strength•Increased Libido•Size Decrease•Size Increase•Tongue Growth•Retcon•Suggestion•Nonconsensual change•New Year’s Eve•Complete •M•M/M•M/M/M•M/M/M/...

The cam show by LordTronimator A furry streamer decides to host a very special show as he decides to showcase a lotion that he found, that promises to increase the size of one’s penis. Things start out well enough before taking a very messy turn. 2,552 words Added May 2020 8,668 views 4.9 stars (8 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Social Media•Anthro/Furry •M/M•M/M/M

Naked by Also Known As 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. 10 parts 39k words (#99) Added Jun 2016 51k views 4.6 stars (37 votes) •Cock Growth•Huge Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Public Nudity•Plausible Size Difference•Size Increase •M/M

New feature on COCKR by Clearlyhere Greg and Alex have been dating for a while. Greg has really pushed Alex in his sexual repertoire. Neither had imagined they’d ever go so far. 2 parts 4,293 words Added Dec 2023 Updated 30 Dec 2023 3,041 views 4.7 stars (14 votes) •Cock Growth•Cock Shrinking