Infectious

Whatever change happened to you can also be spread to the people you have physical or sexual contact with. Often happens through transmission of semen (specifically, something along the lines of “my cum makes you grow”) or sweat, but can involve methods as innocuous as kissing, or smelling the subject’s potent musk.

  Child of:  Partner-Related Changes. Related tags:  Absorption;Body Swap;Hyper Pheromones;Infectious;Merging;Shared Body.

  Tag Group:  Transformation.

106 stories found Sorted alphabetically Total word count: 2,519,979

A 7

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

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

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 224k views 4.6 stars (147 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

All your wildest dreams by FloralSpaded When Walker has his hot friend Joe over for the night, things get out of hand and all of Walker’s wildest dreams come true. 2 parts 1,496 words Added Jun 2018 17k views 3.1 stars (19 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Infectious

And then he came by Teen Hulk David's dream is interrupted … but only until his next visit to the gym. 2 parts 7,372 words Added May 2002 46k views 4.4 stars (9 votes) •Cock Growth•Huge Cock•Self-suck•Hyper Cum•Muscle Growth•Muscle/Strength•First Time/Virgin•Infectious •M/M

Angelo and Adrian by WordShop Genius Angelo and sweet Adrian are both scarred by their pasts. Angelo has to accept change in his life, and accidentally, without intending it, Adrian is forced to accept a new life for which he is not at all prepared. 9 parts 43k words (#89) Added Oct 2017 Updated 11 May 2018 26k views 4.5 stars (8 votes) •Cock Growth•Muscle Growth•Muscle/Strength•Gradual Change•Hyper Pheromones•Infectious •M/M

At the cafeteria by BRK Jordan meets up with his friends at the cafeteria very late one night before midterms. They end up making a game of passing around Ethan’s ancient-recipe birthday liqueur and telling strange rumors about each other, with some unintended consequences. 3 parts 8,362 words Added Jun 2015 31k views 4.7 stars (43 votes) •Cock Growth•Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Getting Handsomer•Retcon•Suggestion•Infectious•Immortality •M/M•M/M/M

B 8

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

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

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 23k views 5.0 stars (11 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Infectious •M/M

Bigger issues: Ultimate growth by muscl4life 6 parts 32k words Added Nov 2013 45k views 4.4 stars (7 votes) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Muscle Worship•Increased Libido•Size Increase•Infectious

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

Boosted by West Phil has a clumsy moment, and suddenly the school’s Augmented Reality room ends up being so much more. 3 parts 5,429 words Added Aug 2021 Updated 4 Sep 2021 17k views 4.6 stars (23 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Multi-abs•Hyper Muscle•Muscle Growth•Muscle/Strength•Getting Handsomer•Getting Taller•Plausible Size Difference•Size Increase•Tongue Growth•A.I.-Controlled Change•App•Incest•Brothers•Infectious•Complete

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

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/...

C 12

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 46k 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 Change continues by Richard Jasper The Change is unstoppable, spreading rapidly through the gay male population, while those who first experienced it revel in their increasingly wild transformation. 6 parts 6,405 words Added Apr 2020 13k views 4.6 stars (5 votes) •Cock Growth•Huge Cock•Muscle Growth•Getting Taller•Size Increase•Nonconsensual change•Infectious

Changes in Bigby Heights by NBCK99 Alex Stevens has always been shy, being the only boytaur in Bigby Heights, but Jesse helps bring him out of his shell. But after their first encounter, reality seems to shift. 3 parts 5,173 words Added Jun 2010 Updated 26 Sep 2010 25k views 4.7 stars (22 votes) •Always Hard•Cock Growth•Huge Cock•Self-suck•Multi-abs•Multicock•Boytaur•Four Legs•Multiarm•Multilimb•Muscle Growth•Muscle/Strength•Getting Taller•Retcon•Infectious •M/M•M/M/M

Chat transcript: More than plenty by BRK Two guys chatting about extras end up giving each other the works. 2,780 words Added Nov 2014 8,593 views 5.0 stars (7 votes) •Multicock•Multilimb•Replication•Size Increase•Selfcest•Infectious•All Dialog •M/M

A Christmas wish by Buck Reams Writing out your fantasies can have practical consequences, if you do it on a scrap of paper you forgot came from a magical tome. 1,975 words Added Dec 2019 20k views 4.8 stars (22 votes) •Cock Growth•Huge Balls•Huge Cock•Nipcocks•Hyper Cum•Nipple Emissions•Muscle Growth•Muscle/Strength•Transformation•Size Increase•Hair Growth/Getting Hairy•Nonconsensual change•Infectious•Christmas •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 43k 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

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 53k 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

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

Contamination by RdyRoger After his dick came in contact with an experimental substance, high schooler Vincent starts slowly getting bigger… first in his crotch and then other places, too. Thomas, a tall, handsome jock, likes teasing him about it at every opportunity. 6,135 words Added Jul 2019 27k views 4.6 stars (21 votes) •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle/Strength•Gradual Change•Getting Taller•Size Increase•Hair Growth/Getting Hairy•Infectious •t/t

Crotchmania by Alex Anders A lucky porn star gets to partake of the newest fad. 1,672 words Added Aug 2021 4,812 views 4.5 stars (2 votes) •Crotchhead•Transformation•Mouthcock•Infectious

Curse room by BRK As the landlord’s son, Joey gets to deal with abandoned apartments and whatever might be in them. Usually it’s just junk; but the guy that skipped on unit 12E was deeply weird, and the way he’d looked at Joey before was more than a little scary. 2,828 words Added Apr 2022 7,313 views 4.5 stars (12 votes) •Cock Growth•Huge Balls•Huge Cock•Multi-abs•Multiarm•Multilimb•Muscle Growth•Getting Taller•Plausible Size Difference•Infectious •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 18k 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

D 2

Damian and the three muscleteens by hyperboi 5 parts 8,170 words Added Dec 2012 58k views 4.3 stars (28 votes) •Cock Growth•Huge Cock•Hyper Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Age Difference•Incest•Brothers•Father/Son•Twins•Infectious

Don’t cum by LordTronimator A world doomed by those who find themselves unable to stop cumming once they start, recounted by an innocent victim. 1,471 words Added Sep 2020 11k views 4.0 stars (5 votes) •Hyper Cum•Nonconsensual change•Infectious•Horror

E 2

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 61k 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/...

The expedition by BRK An archaeologist and his research assistant, joined at the last minute by a jock desperate to boost his GPA, embark on a preliminary exploration of a mysterious Aegean island. 16 parts 37k words Added Jul 2021 Updated 1 Oct 2022 19k views 4.9 stars (16 votes) •Always Hard•Cock Growth•Huge Cock•Multicock•Multihead•Boytaur•Four Legs•Lots of Legs•Multiarm•Multileg•Multilimb•Three Legs•Multitongue•Replication•Stacking•Hyper Strength•Muscle Growth•Muscle/Strength•Always Shirtless•Increased Libido•Getting Taller•Giants•Plausible Size Difference•Size Decrease•Size Increase•Tongue Growth•Age Difference•Selfcest•Infectious•Merging•Shared Body•Centaurs•Pagan gods •M/M•M/M/M

F 2

Field agent by BRK Special agents Adkins and Barber interview a rancher in relation to their current case. There’s something odd about the handsome Latino, though—starting with the fact that he won’t get down off his horse. 2 parts 5,236 words Added Apr 2020 Updated 14 Nov 2020 12k views 4.8 stars (22 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Multicock•Boytaur•Four Legs•Multiarm•Multileg•Multilimb•Replication•Muscle Growth•Public Nudity•Size Increase•Incest•Twins•Selfcest•Infectious•Centaurs •M/M•M/M/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 20k 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/...

G 6

Geno-type by Ziel While on a camping trip, Tyler makes a half-assed wish on a shooting star. Not only does he get his wish, but it begins to affect those around him as well. Maybe he should have been more specific? An ongoing saga of hyper growth and the weird social situations it results in. 34 parts 144k words (#7) Added Dec 2012 Updated 3 Feb 2016 104k views 4.3 stars (26 votes) •Cock Growth•Cockfucking•Huge Cock•Hyper Cock•Infectious •t/t•t/t/t

The good freak by Also Known As Kevin Peters is a cheerful, very fit young man who happens to be getting bigger and hotter in every way, much to the bemusement (and secret arousal) of his doctor. Soon the guys around him are growing too, and Dr. Donaldson discovers even he’s not immune... 33 parts 34k words Added Nov 2002 50k views 4.9 stars (25 votes) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Gradual Change•Getting Taller•Size Increase•Infectious•April Fool’s Day •M/M•M/M/M•t/t•t/t/t•M/t

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

Growing pains by Anonymous 4 parts 4,674 words Added Jul 2002 24k views 4.4 stars (5 votes) •Cock Growth•Muscle Growth•Muscle/Strength•Infectious

Gym maniac over his head by MuscularEmperor Alexander discovers that the sweat and sperm of bodybuilders affects his own body, which begins a dangerous and destructive obsession. 3,322 words Added Jan 2020 16k views 3.6 stars (19 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Muscle•Muscle Growth•Muscle/Strength•Size Increase•Destruction/Violence•Nonconsensual change•Nonconsensual sex•Infectious

Gym parasite by Aphon When a failed experimental piece of parasite goop finds itself in a gym, it must spread itself quickly or die. Its means of transmission has some huge side effects, whether you like it or not… 1,711 words Added Dec 2019 22k views 4.7 stars (26 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Straight to Gay•Nonconsensual change•Infectious •M/M

H 5

Huge changes: Book two by RdyRoger Jason and Todd decide to help Mason, not suspecting that Mason will get an extra helping of wishes, or that Mason’s fantasies of love and growth will start affecting more than just his partners. 2 parts 9,859 words Added Dec 2017 20k views 4.9 stars (9 votes) •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle/Strength•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Nonconsensual change•Infectious

Hulk hunter by JayPat Hunter has dedicated his life to tracking and neutralizing the hundreds of huge-growing hulks that have been terrorizing small towns for twenty years now, and he’s damn good at what he does. But when he gets to his latest sighting, he finds things aren’t going the way they usually do. 2 parts 11k words Added Sep 2018 22k views 4.6 stars (16 votes) •Cock Growth•Huge Cock•Hyper Cock•Multi-abs•Muscle Growth•Muscle/Strength•Transformation•Giants•Size Increase•Destruction/Violence•Nonconsensual change•Infectious •M/M

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

The hulk pill: Contagion by Azerreza Awakened by his brother Mike, David got the surprise of his life when he discovered that his big brother was now... really big: 8 feet tall and probably several tons of muscle. Unfortunately he did not know more about what had happened to him, so he met his friends at the mall as planned. But during the day, he noticed that his clothes seemed to be getting tighter and tighter, including the new ones he had just bought that morning... David was unknowingly one of the first to be infected with what would quickly become a pandemic. 4 parts 16k words Added Jul 2022 Updated 24 Sep 2022 20k views 4.8 stars (10 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cum•Muscle Growth•Increased Libido•Transformation•Voice Deepening•Getting Taller•Plausible Size Difference•Size Increase•Nanotech•Destruction/Violence•Nonconsensual change•Infectious •M

The hulk pill: Contagion 2 by Azerreza Having just been beaten up by his usual bully, Matt thought that this day couldn’t have started any worse. Especially since he had to meet his buddies, David and Ben at the mall. But he had absolutely no idea that this day would change everything and that, on the contrary, it would be the best day of his life... 6 parts 23k words Added Jan 2023 Updated 4 Feb 2023 9,439 views 4.8 stars (6 votes) •Hyper Cum•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Increased Libido•Voice Deepening•Size Increase•Nanotech•Destruction/Violence•Infectious •t/t

I 6

In the sack by Neltharion5 Brian finds a magical backpack that uses magazines as fuel to transform him. Soon, he realizes that his enhancements are sexually contagious, making his sex partners hotter. What else will he discover about the magic sack? 3,526 words Added Mar 2017 13k views 4.5 stars (8 votes) •Huge Cock•Muscle Growth•Muscle/Strength•Infectious

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 (34 votes) •Cock Growth•Wings•Hyper Muscle•Muscle Growth•Transformation•Getting Taller•Inflation•Infectious•Incubus/Succubus•Supernatural•Immortality•Shapeshifting •M/M

Incubus garage by Quick Master An incubus of the lower realms aims to corrupt all of the men working at a greasy local garage into incubi. 3 parts 15k words Added Dec 2021 Updated 1 Jan 2022 14k views 5.0 stars (5 votes) •Cock Growth•Huge Balls•Huge Cock•Nipple Emissions•Multicock•Straight to Gay•Muscle Breast•Muscle Growth•Muscle/Strength•Increased Libido•Transformation•Getting Taller•Plausible Size Difference•Size Increase•Human to Animal/Anthro•Tongue Growth•Hyper Pheromones•Infectious•Demons•Incubus/Succubus•Supernatural •M/M•M/M/M•M/M/M/...

Induced transformation: a brief history by BRK A father explains to his son that back in his day, they didn’t have any of these fancy-schmancy apps with built-in retcon. Back then, if you changed someone, they changed, and everyone had to just suck it up and deal with it. 2,248 words Added Jun 2020 13k views 4.9 stars (17 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Replication•Muscle Growth•Age Regression•App•Retcon•Age Difference•Incest•Brothers•Father/Son•Selfcest•Nonconsensual change•Infectious•All Dialog•Complete •M/M•M/M/M/...

Interview with the King of Dust by Betonhaus Jason Ramstaff, also known as the King of Dust, explains the strange growth effects of the extraterrestrial substance known as Dust—complete with a demonstration of exactly how he passes its effects on to others. 3,267 words Added Feb 2021 6,709 views 4.5 stars (4 votes) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Plausible Size Difference•Size Increase•Nanotech•Dom/Sub•Infectious

It’s magic by TylerGermany 2 parts 2,094 words Added Apr 2014 12k views •Transformation•Infectious

J 3

Jake: hand-drawn giant by spacevlad Drawing massive, muscle-hunk football stars seems like a safe enough hobby—but what if your drawing takes on a life of its own? 7 parts 12k words Added Sep 2009 32k views 4.8 stars (8 votes) •Huge Cock•Muscle Gut•Muscle/Strength•Size Increase•Infectious •M/M

Jizzer by Ziel Ethan drags his roommate Walt off to the woods on the outskirts of town to search for their mutual friend. 2,426 words Added Oct 2021 12k views 4.3 stars (9 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Immobility•Muscle Growth•Muscle/Strength•Giants•Size Increase•Infectious•Horror •M/M

The journal by Braun1 An ordinary college guy finds himself changing after a steamy encounter with a hunk named Brad, and decides to start documenting everything that’s happening to him. 11 parts 30k words Added Feb 2003 29k views 4.8 stars (14 votes) •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Hair Growth/Getting Hairy•Infectious •M/M

M 7

Male scent by Frank Easky Apprentice magician Sean’s potion exceeds his expectations, causing his personal musk to spread muscle growth to those who smell it. 2 parts 14k words Added Jul 2002 62k views 4.1 stars (17 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Muscle Growth•Muscle/Strength•Man Scent•Getting Taller•Giants•Size Increase•Age Regression•Hair Growth/Getting Hairy•Incest•Brothers•Twins•Hyper Pheromones•Infectious

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 314k views 4.6 stars (83 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Infectious •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

The minotaur equation by LeatherGryphon After Dale rewrites his DNA to become a hugely muscled, hugely hung minotaur, he discovers he hadn’t thought through his transformation. 7 parts 16k words Added Jul 2014 33k views 4.7 stars (26 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Human to Animal/Anthro•Infectious•Anthro/Furry •M/M

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

Morphogenic steroids by RdyRoger Rod’s dad is working on a new technology that makes small things bigger and big things huge, with incredible implications for food supplies and beyond—only it only lasts for five hours. Rod figures being bigger for five hours… that would be pretty awesome. 4 parts 15k words Added Oct 2019 25k views 4.5 stars (13 votes) •Cock Growth•Huge Balls•Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•Increased Libido•Gradual Change•Getting Taller•Plausible Size Difference•Size Increase•Hair Growth/Getting Hairy•Infectious

Moving forward by West When Brandon’s life takes an unexpected turn, his new roommate turns it around once again. 1,334 words Added Feb 2022 5,485 views 4.6 stars (9 votes) •Cock Growth•Huge Cock•Multicock•Straight to Gay•Muscle Growth•Getting Taller•Suggestion•Infectious •M/M

N 3

The new guy by Also Known As A new employee causes pleasant though potentially cum-plicated problems. 8 parts 39k words Added Jun 2019 Updated 24 Jun 2023 41k views 4.8 stars (44 votes) •Always Hard•Cock Growth•Huge Cock•Hyper Cum•Addiction•Muscle Growth•Muscle/Strength•Getting Handsomer•Nonconsensual change•Infectious •M/M•M/M/M

New normal by brazboy Pedro is a Brazilian university student who returned to live with his roommates after one and a half years living with his family during the pandemics, but everything is not the same. His roommates Carlos and Henrique will not tell him what exactly has changed, wanting him to see it with his own two eyes. 5,662 words Added Jun 2021 13k views 4.7 stars (17 votes) •Cock Growth•Cockfucking•Huge Cock•Hyper Cock•Hyper Cum•Nipple Emissions•Muscle Breast•Muscle Growth•Getting Taller•Plausible Size Difference•Size Increase•Infectious•Set during the Pandemic •M/M•M/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

O 1

Omega cursed: An alpha touch side story by Caliburn Best friends Ryan and Sam finally get to enjoy a much-anticipated camping trip. However, Sam has being acting odd ever since they crossed paths with that man in the gas station. Maybe the weird tattoo that suddenly appeared on Sam’s buttcheek has something to do with it. 8,604 words Added Jun 2022 13k views 4.7 stars (23 votes) •Cock Growth•Huge Balls•Huge Cock•Addiction•Straight to Gay•Muscle Growth•Muscle/Strength•Man Scent•Increased Libido•Foot Growth•Getting Handsomer•Gradual Change•Voice Deepening•Getting Taller•Size Increase•Hair Growth/Getting Hairy•Nonconsensual change•Nonconsensual sex•Hyper Pheromones•Infectious •M/M

P 3

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

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

Porn can be healthy by Egi Zack is a healthy, horny young man who, like any other boy, likes to look at porn. Always one for novelty, Zack comes across the perfect website for him and his needs! 2 parts 8,693 words Added May 2017 Updated 19 May 2017 29k views 4.9 stars (45 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Social Media•Infectious •M

Q 1

Quarantined by MuscleNexus Devon is excited to hear his lover is returning from his overseas deployment early, after escaping the outbreak of a strange virus that put the rest of his team in quarantine. Only, Scott doesn’t seem to be quite himself… 1,870 words Added Aug 2018 11k views 4.9 stars (15 votes) •Muscle Growth•Muscle/Strength•Nonconsensual change•Infectious

R 2

The radiation zone by SomeMuscleGuy After going off the beaten path to explore an abandoned military base, Alex is involved in an incident that leaves him contaminated with radioactive material, and he won’t stop growing until he escapes. 3,606 words Added Aug 2022 15k views 4.7 stars (26 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Hyper Muscle•Hyper Strength•Immobility•Muscle Growth•Muscle/Strength•Butt Growth•Increased Libido•Foot Growth•Gradual Change•Transformation•Voice Deepening•Getting Taller•Giants•Size Increase•Nonconsensual change•Infectious •M

Resolutions: King factory by BRK The manager of a small, forgotten factory gets a sudden visit from the son of the conglomerate that owns his plant. Not only is he taking over, it seems, but he’s insistent on maximizing profit—even to the point of reviving production on that one sweetener everyone knows is a joke. 2 parts 6,615 words Added Mar 2022 5,493 views 3.6 stars (9 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Increased Libido•Infectious•Complete •M/M

S 10

Sam and Bolt by MaxMorphs Sam’s father, Bolt, shares with his size-hungry son the secrets of becoming truly huge. 11 parts 48k words (#75) Added Sep 2016 Updated 23 Dec 2016 82k views 3.9 stars (57 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Nipcocks•Self-suck•Cum inflation•Hyper Cum•Nipple Emissions•Getting Taller•Size Increase•Hair Growth/Getting Hairy•Age Difference•Incest•Father/Son•Infectious •M•M/M•M/M/M/...

Santa’s big surprise by Silverfox Dad Jeremy has not only been obsessed with Santa, he's seen him and knows he's real. So when a friend at the gym gives him a muscle-growth supplement meant to give him confidence enough to talk to his beautiful bodybuilder crush Marco, Jeremy decides instead to give Santa a gift of his own. 3 parts 7,594 words Added Jan 2017 19k views 4.9 stars (12 votes) •Muscle Growth•Muscle/Strength•Size Increase•Infectious•Christmas •M/M

Sebastian by TreborNawoc Sebastian’s experiment to transform himself into a multi-hunk worked, and then some! He can’t wait to show off the results to his best friend, Gavin. 4 parts 8,673 words Added Dec 2021 Updated 19 Nov 2022 13k views 5.0 stars (186 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Extra Mouths•Multi-abs•Multi-balls•Multicock•Boytaur•Four Legs•Lots of Legs•Multiarm•Multileg•Multilimb•Three Legs•Multitorso•Muscle Growth•Increased Libido•Transformation•Getting Taller•Plausible Size Difference•Size Increase•Tongue Growth•First Time/Virgin•Infectious •M/M

Seeing stars by OneLuckyGuy89 12 young, muscular and beautiful men have begun protecting Starlight City. Adam Berry has been having weird dreams lately and has a feeling that his life is about to change. 2 parts 8,520 words Added Mar 2020 Updated 30 May 2020 12k views 4.3 stars (7 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Gay to Straight•Muscle Growth•Muscle Gut•Getting Taller•Size Increase•Hair Growth/Getting Hairy•Incest•Twins•Nonconsensual change•Infectious•Merging•Superhero/Supervillain

Side effects 2000 by Braun1 and Z Mike and Jan begin an odyssey of muscle, growth, transformation, sex, and love. 31 parts 127k words (#12) Added Jul 2002 40k views 4.8 stars (8 votes) •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Self-suck•Muscle Growth•Muscle/Strength•Muscle Worship•Size Increase•Infectious

Sk8r dreams by Reaver The Maker is an app that gives you the ability to remake the world around you. That means a better house, a hotter body—and it definitely means turning a few guys in your life into happy, hunky skater bois. 19 parts 59k words (#52) Added Oct 2003 44k views 4.1 stars (19 votes) •Cock Growth•Ball Growth•Huge Cock•Replication•Always Shirtless•Increased Libido•Transformation•Voice Deepening•Age Regression•Race/Ethnicity Change•App•Retcon•Selfcest•Nonconsensual change•Infectious•Mind Control

SNU-5|VU by DracumSum Nathan and Nick have to complete a biochem project on the metahumans caused by the failed SNU-5 nanobot project—only they don’t know any, and the brief random encounter Nathan had at a bus stop the other day won’t help them. Or will it? 6,053 words Added Feb 2022 9,141 views 4.7 stars (7 votes) •Cock Growth•Cut to Uncut•Huge Balls•Huge Cock•Hyper Muscle•Muscle Growth•Increased Libido•Foot Growth•Gradual Change•Transformation•Getting Taller•Giants•Plausible Size Difference•Size Increase•Hairless•Nanotech•Infectious•Set in the Future•Hyper Anus •M/M

The spectacular growing saga by West A collection of brief stories about guys discovering their dream bodies in various ways. 8 parts 12k words Added Mar 2022 Updated 20 May 2023 18k views 4.6 stars (17 votes) •Cock Growth•Cut to Uncut•Cock Shrinking•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Prehensile Cock•Cum inflation•Hyper Cum•Nipple Emissions•Multi-abs•Multi-balls•Multicock•Multiarm•Multipec•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle Theft•Muscle/Strength•Increased Libido•Getting Taller•Forced Growth•Size Decrease•Size Increase•A.I.-Controlled Change•Retcon•Suggestion•Incest•Brothers•Twins•Triplets•Hyper Pheromones•Infectious•Androids/Cyborgs •M/M•M/M/M

Support line by BRK Customers interacting with the reps at the Metabods Support Line tend not to get the service they’re expecting—though it is always above and beyond. 4 parts 13k words Added Feb 2012 Updated 20 Mar 2021 30k views 4.8 stars (13 votes) •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Self-suck•Multicock•Multiarm•Multilimb•Multitorso•Replication•Detachable•App•Selfcest•Infectious•All Dialog •M/M

Sweat it out by Egi Working out is hard enough when you're scrawny and shy. Sometimes you need a partner to help fill you out with some unconventional methods. 2 parts 8,184 words Added Jun 2017 17k views 4.8 stars (13 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Man Scent•Infectious •M/M

T 22

Tales of Atlantis by 10tacles (Updated text, 30 January) Devin washes ashore on the legendary isle of Atlantis, and quickly finds himself in the company of a handsome local. But it would seem the stories of Atlantis’s wonders omitted a number of lurid details... 12k words Added Jan 2023 8,222 views 4.8 stars (18 votes) •Cock Growth•Cock Vore•Cockfucking•Huge Balls•Ball Growth•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Public Orgasm•Multi-balls•Multicock•Always Shirtless•Public Nudity•Male Pregnancy•Giants•Infectious•Goo People•Anthro/Furry•Fantasy Realm•Immortality•Stories with Images •M/M

There’s something about Billy by Ziel Billy seems like perfectly normal, good-looking guy from the waist up. But there’s something going on inside Billy’s weird, super-baggy pants, and Duke and Kevin were determined to find out what it was. 5,442 words Added Feb 2017 17k views 5.0 stars (12 votes) •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Multi-balls•Multicock•Infectious

Toonifying video call by Demonized When a cartoon dick pic starts turning people into hot animated furries, just imagine what a video call could do! 1,296 words Added Aug 2023 3,170 views 4.0 stars (2 votes) •Cock Growth•Ball Growth•Muscle Growth•Butt Growth•Increased Libido•Transformation•Human to Animal/Anthro•Infectious•Anthro/Furry•Complete •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

Transform: After math by Also Known As 9,418 words Added Jan 2014 11k views 4.8 stars (4 votes) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

Transform: Auto upgrade by Also Known As Hank has a bit of car trouble far from home, but lucks out and encounters an automotive oasis whose burly mechanics will eagerly service his every need.  10k words Added Jan 2014 12k views 5.0 stars (6 votes) •Huge Cock•Muscle Growth•Muscle/Strength•Man Scent•Size Increase•Infectious •M/M•M/M/M/...

Transform: Bully boy by Also Known As Sometimes a homophobic bully picks on the wrong guy. 12k words Added Jan 2014 16k views 3.6 stars (5 votes) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

Transform: Coffee and cream by Also Known As 3,172 words Added Jan 2014 11k views 5.0 stars (3 votes) •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Infectious

Transform: Coffee break by Also Known As Marcus’s favorite espresso dude at the coffee shop looks a little different today. 9,093 words Added Jan 2014 11k views 5.0 stars (3 votes) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

Transform: Daniel by Also Known As 4,735 words Added Jan 2014 12k views 4.5 stars (2 votes) •Huge Cock•Muscle Growth•Muscle/Strength•Infectious

Transform: Fine art by Also Known As 6,999 words Added Jan 2014 7,877 views 5.0 stars (2 votes) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

Transform: Friends in need by Also Known As Franklin refuses to let his best friend Albert induct him into the Muscle Club, despite the awesomeness of Albert’s body and the control over it he’s gained. Albert agrees to leave him alone. But Franklin is feeling these bursts of powerful arousal coursing through him as they’re playing video games together, and he knows Albert’s doing it on purpose… 6,594 words Added Jan 2014 12k views 5.0 stars (7 votes) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious •M/M

Transform: Morning wood by Also Known As 8,923 words Added Jan 2014 15k views 5.0 stars (5 votes) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

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 48k 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

Transform: Muscle club by Also Known As 9,869 words Added Jan 2014 17k views 5.0 stars (4 votes) •Huge Cock•Self-suck•Hyper Cum•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

Transform: New Blood by Also Known As The formula Carlos developed, Transform, has made him and his friends into veritable gods. Soon their numbers will be growing, thanks in part to a video featuring a guy known only as Self-Suck Sam. 47 parts 188k words (#5) Added Jan 2014 45k views 4.2 stars (5 votes) •Always Hard•Cock Growth•Huge Cock•Self-suck•Multicock•Muscle Growth•Muscle/Strength•Muscle Worship•Man Scent•Increased Libido•Voice Deepening•Size Increase•First Time/Virgin•Infectious•Flying

Transform: Phone sex by Also Known As Converting a guy to be one of the Transformed is easy enough in person. But what about over the phone? 5,573 words Added Jan 2014 13k views 5.0 stars (6 votes) •Cock Growth•Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious •M/M•M/M/M

Transform: Promises, promises by Also Known As 2 parts 17k words Added Jan 2014 11k views 5.0 stars (2 votes) •Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

Transform: Teacher’s pet by Also Known As As students go, Raul is pretty cocky, and with good reason—even at detention with Mr. Titus and the rest of the Muscle Club. 8,100 words Added Jan 2014 13k views 5.0 stars (6 votes) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

Transform: Teen Truman by Also Known As 7,238 words Added Jan 2014 24k views 5.0 stars (4 votes) •Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•Voice Deepening•Size Increase•Infectious

Transform: The athletic supporter by Also Known As 10k words Added Jan 2014 12k views 4.0 stars (1 vote) •Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious

Transform: The college years by Also Known As The sexy teens affected by the Transform ability wreak even more havoc at college with their amazing and irresistible growth-at-will double-hung dream bods. 12 parts 80k words (#34) Added Jan 2014 24k views 4.8 stars (16 votes) •Cock Growth•Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Muscle Worship•Man Scent•Size Increase•Infectious•Flying •M/M•M/M/M

U 2

Unbound Beast Inc. by an0n12 Jeff is working out late at night and encounters Ian who has substantially grown since he last saw him; Ian decides to be cocky and show off/seduce Jeff not taking into account the how effective the drug he's taking would be when he cums. Will it be too much for Ian or will he let his arrogance and lust get the better of him? 4,024 words Added Mar 2017 14k views 4.4 stars (18 votes) •Huge Cock•Muscle Growth•Muscle/Strength•Infectious

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 132k 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

V 1

Visiting home by Wicked Asher spent his entire first semester working out and gaining some serious muscle, but when he returns home for winter break, he doesn’t realize that he’ll be the one amazed by how much someone can change. 2 parts 6,753 words Added Jan 2016 Updated 11 May 2016 42k views 4.8 stars (29 votes) •Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Age Difference•Incest•Father/Son•Infectious •M/M

Y 1

You and I by BRK and Jockmorphr When two lovers with the power to transform each other reunite after a separation, the results can be explosive. 4 parts 12k words Added Oct 2011 Updated 16 Feb 2019 43k views 4.8 stars (14 votes) •Always Hard•Cock Growth•Huge Cock•Nipcocks•Nipple Emissions•Multi-abs•Multicock•Multihead•Multiarm•Multilimb•Multipec•Multitorso•Replication•Stacking•Muscle Growth•Muscle/Strength•Getting Handsomer•Tongue Growth•Mouthcock•Selfcest•Infectious•Merging •M/M•M/M/M•M/M/M/...

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