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.
Absorption; Body Swap; Hyper Pheromones; Merging; Shared Body.
Partner-Related Changes. Top Stories: “Max’s wish”; “Medicine show”; “All good things”; “Geno-type”; “More than expected”; “The hulk pill”; “Ad man”; “Sam and Bolt”; “Bull’s strength”; “Damian and the three muscleteens”. Recently Updated: “Interview with the King of Dust”.
73 stories found.
by Ad man FanTCMan CGrow Hair Cock HyCock Cum Infect MGrow Musc Nonc 2Gay Powerful ad exec Tucker needs the help of one of his reps, an amateur bodybuilder named Larry, to break into the sports and fitness market. Larry takes the initiative and offers to help a potential client test their new supplement, and the results aren't what Tucker or Larry expect. Added Dec 2003 8,642 words 60,789 views 5.0 stars (26 votes) by All good things Anon Amon Bro CGrow CumInf Balls Cock HyCock Cum Immob Infect MGrow Musc NipCum 2Gay Twins After the discovery of an ancient artifact, life is changed forever for a group of college students who have bigger things to worry about than getting ready to start classes. Added Feb 2017 Updated Oct 2020 104 parts 119,339 words 150,954 views 4.5 stars (119 votes) by All your wildest dreams FloralSpaded CGrow Cock Infect MGrow Musc When Walker has his hot friend Joe over for the night, things get out of hand and all of Walker’s wildest dreams come true. Added Jun 2018 2 parts 1,496 words 12,073 views 3.1 stars (19 votes) by And then he came Teen Hulk CGrow Virgin Cock Cum Infect MGrow Musc Self David's dream is interrupted … but only until his next visit to the gym. Added May 2002 2 parts 7,372 words 34,946 views 4.4 stars (7 votes) by Angelo and Adrian WordShop CGrow Grad Pher Infect MGrow Musc Genius Angelo and sweet Adrian are both scarred by their pasts. Angelo has to accept change in his life, and accidentally, without intending it, Adrian is forced to accept a new life for which he is not at all prepared. Added Oct 2017 Updated May 2018 9 parts 43,220 words 19,883 views 4.4 stars (7 votes) by At the cafeteria BRK CGrow VGL Cock Immort Infect XCock MGrow Musc Sugg Jordan meets up with his friends at the cafeteria very late one night before midterms. They end up making a game of passing around Ethan’s ancient-recipe birthday liqueur and telling strange rumors about each other, with some unintended consequences. Added Jun 2015 3 parts 8,362 words 23,411 views 4.7 stars (39 votes) by Bear’s den Pfefferooney Belly CGrow Hair Balls Cock HyCock Infect MGrow Musc NipCum Grow David is a small university student and he wants nothing more than to be, and be with, an enormous man. On a fateful day, he stumbles upon someone who can make his dream come true. Added Mar 2019 Updated May 2019 3 parts 9,022 words 19,070 views 4.9 stars (9 votes) by The best instructions are those that are clearly stated Ziel CGrow Balls Cock HyCock Cum Infect Marty talks his super smart friend into whipping him up a special potion that will help with his little problem. Added Jun 2016 5,194 words 15,249 views 5.0 stars (9 votes) by Bigger issues: Ultimate growth muscl4life CGrow Cock HyCock Infect MGrow Worship Musc Grow Series Added Nov 2013 Updated Dec 2013 6 parts 31,808 words 34,110 views 4.3 stars (6 votes) by Bull’s strength muscl4life AgeDiff Hard Beast CGrow Viol Dad Fly Taller Balls Cock HyCock Infect XAbs XCock MGrow Worship Musc PSD Grow Tf On a quiet farm far from anywhere, an orphan named Joshua grows up so huge and strong that he’s bullied for being a freak. His aunt and uncle raise him with love and teach him to accept who he is, but Joshua yearns to be among men who don’t just accept his giant body, but love and admire his amazing size and power. Added Jul 2018 Updated Oct 2018 28 parts 88,398 words 52,587 views 4.8 stars (30 votes) by The Change continues Richard Jasper CGrow Taller Cock Infect MGrow Nonc Grow Series The Change is unstoppable, spreading rapidly through the gay male population, while those who first experienced it revel in their increasingly wild transformation. Added Apr 2020 6 parts 6,405 words 5,791 views by Changes in Bigby Heights NBCK99 Hard Btaur CGrow 4Legs Cock Infect XArm XCock XLimb Retcon Alex Stevens has always been shy, being the only boytaur in Bigby Heights, but Jesse helps bring him out of his shell. But after their first encounter, reality seems to shift. Added Jun 2010 Updated Sep 2010 3 parts 5,173 words 20,507 views 4.6 stars (17 votes) by Chat transcript: More than plenty BRK Dialog Infect XCock XLimb Rep Grow Two guys chatting about extras end up giving each other the works. Added Nov 2014 2,780 words 5,944 views 5.0 stars (6 votes) by A Christmas wish Buck Reams Xmas CGrow Hair Balls Cock Cum Infect MGrow Musc NipC NipCum Nonc Grow Tf Writing out your fantasies can have practical consequences, if you do it on a scrap of paper you forgot came from a magical tome. Added Dec 2019 1,975 words 9,314 views 4.7 stars (13 votes) by Coach Barker Argenti CGrow Taller Giant Cock HyCock Infect MGrow PSD Grow Coach Travis Barker has a special gift, and when he shares this gift with Adam, change begins to unfold around them. Added May 2019 Updated Jun 2019 9 parts 18,987 words 23,962 views 4.9 stars (22 votes) by Contamination RdyRoger CGrow Hair Taller Grad Balls Cock Infect MGrow Musc Grow 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. Added Jul 2019 6,135 words 12,974 views 4.4 stars (7 votes) by Geno-type Ziel CGrow Cock HyCock Infect While on a camping trip, Tyler makes a half-assed wish on a shooting star. Not only does he get his wish, but it begins to affect those around him as well. Maybe he should have been more specific? An ongoing saga of hyper growth and the weird social situations it results in. Added Dec 2012 Updated Feb 2016 34 parts 144,288 words 90,363 views 4.3 stars (25 votes) by The good freak Also Known As Hard CGrow Taller Grad Balls Cock Cum Infect MGrow Musc Grow Kevin Peters is a cheerful, very fit young man who happens to be getting bigger and hotter in every way, much to the bemusement (and secret arousal) of his doctor. Soon the guys around him are growing too, and Dr. Donaldson discovers even he’s not immune... Added Nov 2002 33 parts 33,508 words 35,440 views 4.9 stars (15 votes) by The greenhouse effect Godzilla CGrow Balls Cock Infect Plants Added Feb 2006 2,398 words 19,675 views by Growing pains Anonymous CGrow Infect MGrow Musc Added Jul 2002 4 parts 4,674 words 19,738 views 4.4 stars (5 votes) by Gym maniac over his head MuscularEmperor CGrow Viol Cock HyCock HMusc Infect MGrow Musc Nonc Rape Grow Alexander discovers that the sweat and sperm of bodybuilders affects his own body, which begins a dangerous and destructive obsession. Added Jan 2020 3,322 words 8,073 views 3.4 stars (13 votes) by Gym parasite Aphon CGrow Balls Cock HyCock Infect Nonc 2Gay 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… Added Dec 2019 1,711 words 9,530 views 4.5 stars (16 votes) by Huge changes: Book two RdyRoger CGrow Hair Balls Cock Infect MGrow Musc Nonc PSD Grow Series 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. Added Dec 2017 2 parts 9,859 words 13,478 views 4.9 stars (7 votes) by Hulk hunter JayPat CGrow Viol Giant Cock HyCock Infect XAbs MGrow Musc Nonc Grow Tf Series 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. Added Sep 2018 2 parts 11,052 words 12,057 views 4.5 stars (13 votes) by The hulk pill JayPat Cock Infect MGrow Musc Nano Grow The only thing weirder than your buddy Boz offering you a “hulk pill” would be for it to actually work. Added Oct 2012 5 parts 29,485 words 68,381 views 4.6 stars (23 votes) by In the sack Neltharion5 Cock Infect MGrow Musc 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? Added Mar 2017 3,526 words 9,917 views by Incubus CentaurQuinn CGrow Taller HMusc Immort Incub Infect Infl MGrow Shift Supn Tf Wings Ken discovers his friend with benefits is more than he seems, and might be a solution to a problem at work. Added Oct 2020 2,534 words 3,859 views 4.8 stars (17 votes) by Induced transformation: a brief history BRK AgeDiff AgeDown Dialog Bro CGrow Dad Cock HyCock Cum Infect MGrow Nonc Rep Retcon A father explains to his son that back in his day, they didn’t have any of these fancy-schmancy apps with built-in retcon. Back then, if you changed someone, they changed, and everyone had to just suck it up and deal with it. Added Jun 2020 2,248 words 4,606 views 5.0 stars (11 votes) by Interview with the King of Dust Betonhaus CGrow Dom Cock HyCock Cum Infect MGrow Musc Nano PSD Grow 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. Added Feb 2021 3,267 words 1,944 views by It’s magic TylerGermany Infect Tf Added Apr 2014 2 parts 2,094 words 9,968 views by Male scent Frank Easky AgeDown Bro CGrow Hair Taller Giant Balls Cock HyCock Cum HMusc Pher Infect Scent MGrow Musc Grow Twins Apprentice magician Sean's potion exceeds his expectations, causing his personal musk to spread muscle growth to those who smell it. Added Jul 2002 2 parts 13,564 words 43,317 views 4.0 stars (15 votes) by Max’s wish Bulge101 CGrow Cock Infect MGrow Musc Grow Scrawny Max uses his wish-power to make himself worthy of the extremely hot bully he has a crush on, but his friend Bobby deserves his help, too, and soon lots of changes start happening at school and at home. Added Aug 2011 Updated Nov 2011 11 parts 24,647 words 252,915 views 4.5 stars (68 votes) by Medicine show Fafhrd Bi CGrow Virgin Het Cock HyCock Infect Lycra Self Series Added Feb 2012 Updated Feb 2014 174 parts 250,271 words 178,954 views 4.5 stars (20 votes) by The minotaur equation LeatherGryphon Fur CGrow Cock 2Anim Infect MGrow Musc Series After Dale rewrites his DNA to become a hugely muscled, hugely hung minotaur, he discovers he hadn’t thought through his transformation. Added Jul 2014 7 parts 16,439 words 24,391 views 4.7 stars (23 votes) by More than expected LennoxBear CGrow Virgin Hair Balls Cock Infect MusBr MGrow Musc NipCum Nonc Added Jul 2002 5 parts 20,375 words 76,476 views 4.1 stars (15 votes) by Morphogenic steroids RdyRoger CGrow Hair Taller Grad Balls Cock Infect MGrow Musc PSD Self Grow Rod’s dad is working on a new technology that makes small things bigger and big things huge, with incredible implications for food supplies and beyond—only it only lasts for five hours. Rod figures being bigger for five hours… that would be pretty awesome. Added Oct 2019 4 parts 15,297 words 13,416 views 4.2 stars (9 votes) by Quarantined MuscleNexus Infect MGrow Musc Nonc 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… Added Aug 2018 1,870 words 7,059 views 4.9 stars (14 votes) by Sam and Bolt Alakazam1988 AgeDiff CGrow CumInf Dad Hair Taller Balls Cock HyCock Cum Infect NipC NipCum Self Grow Sam’s father, Bolt, shares with his size-hungry son the secrets of becoming truly huge. Added Sep 2016 Updated Dec 2016 11 parts 48,242 words 57,422 views 3.6 stars (53 votes) by Santa’s big surprise Silverfox Dad Xmas Infect MGrow Musc Grow Series 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. Added Jan 2017 3 parts 7,594 words 13,174 views 4.9 stars (10 votes) by Seeing stars OneLuckyGuy89 CGrow 2Straight Hair Taller Balls Cock HyCock Infect Merg MGrow Gut Nonc Grow Super Twins 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. Added Mar 2020 Updated May 2020 2 parts 8,520 words 4,904 views 4.0 stars (5 votes) by Side effects 2000 Braun1 Hard CGrow Cock HyCock Infect MGrow Worship Musc Self Grow Mike and Jan begin an odyssey of muscle, growth, transformation, sex, and love. Added Jul 2002 31 parts 126,732 words 29,335 views 4.6 stars (5 votes) by Sk8r dreams Reaver AgeDown NoShirts CGrow Cock Infect Mind Nonc Race Rep Retcon Tf Series The Maker is an app that gives you the ability to remake the world around you. That means a better house, a hotter body—and it definitely means turning a few guys in your life into happy, hunky skater bois. Added Oct 2003 19 parts 58,830 words 31,096 views 4.2 stars (17 votes) by Support line BRK Dialog Hard CGrow Cock HyCock Infect XArm XCock XLimb XTorso Rep Customers interacting with the reps at the Metabods Support Line tend not to get the service they’re expecting—though it is always above and beyond. Added Feb 2012 Updated Nov 2013 3 parts 7,459 words 23,512 views 4.9 stars (9 votes) by Sweat it out Egi CGrow Cock Infect Scent MGrow Musc 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. Added Jun 2017 2 parts 8,184 words 11,181 views 4.7 stars (9 votes) by Transform Also Known As CGrow Fly Cock Pher Infect XCock MGrow Worship Musc Series Containing a secret is a hard thing to do. And the bigger the secret is, the harder it is to keep. No one was finding the truth of this more than those few men in charge at the Institute for Genetic Enhancement where the way has been found to transcend ordinary masculinity. The sequel to Supermen. Added Oct 2002 35 parts 131,919 words 41,843 views 5.0 stars (6 votes) by Transform: After math Also Known As Cock Infect XCock MGrow Musc Grow Series Series Added Jan 2014 9,418 words 6,956 views by Transform: Auto upgrade Also Known As Cock Infect Scent MGrow Musc Grow Series Series Added Jan 2014 10,147 words 6,302 views by Transform: Bully boy Also Known As Cock Infect XCock MGrow Musc Grow Series Series Sometimes a homophobic bully picks on the wrong guy. 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Now is the time to make it a literal community all its own—a city of transformed muscle. Added Jan 2014 21 parts 119,996 words 29,076 views by Transform: Muscle club Also Known As Cock Infect XCock MGrow Musc Self Grow Series Series Added Jan 2014 9,869 words 9,857 views by Transform: New Blood Also Known As Hard CGrow Virgin Fly Cock Infect Scent XCock MGrow Worship Musc Self Grow Series The formula Carlos developed, Transform, has made him and his friends into veritable gods. Soon their numbers will be growing, thanks in part to a video featuring a guy known only as Self-Suck Sam. Added Jan 2014 47 parts 188,423 words 31,509 views by Transform: Phone sex Also Known As CGrow Cock Infect XCock MGrow Musc Grow Series Series Added Jan 2014 5,573 words 7,847 views 5.0 stars (5 votes) by Transform: Promises, promises Also Known As Cock Infect MGrow Musc Grow Series Series Added Jan 2014 2 parts 17,445 words 6,660 views by Transform: Teacher’s pet Also Known As Cock Infect XCock MGrow Musc Grow Series Series As students go, Raul is pretty cocky, and with good reason—even at detention with Mr. Titus and the rest of the Muscle Club. Added Jan 2014 8,100 words 7,813 views by Transform: Teen Truman Also Known As Cock Infect MGrow Musc Self Grow Series Series Added Jan 2014 7,238 words 16,115 views by Transform: The athletic supporter Also Known As Cock Infect XCock MGrow Musc Grow Series Series Added Jan 2014 10,070 words 7,527 views by Transform: The college years Also Known As CGrow Fly Cock Infect Scent XCock MGrow Worship Musc Grow Series Series The sexy teens affected by the Transform ability wreak even more havoc at college with their amazing and irresistible growth-at-will double-hung dream bods. Added Jan 2014 12 parts 80,145 words 15,536 views 4.6 stars (9 votes) by Unbound Beast Inc. an0n12 Cock Infect MGrow Musc 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? Added Mar 2017 4,024 words 10,647 views 4.5 stars (16 votes)