Top-Voted Stories

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

Gold Star 212

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 Added Jul 2021 Updated 7 May 2022 15k views 5.0 stars (200 votes) 5,841 words •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/...

Life of Tre by TreborNawoc Tre has a wild body with lots of extras, which gets him a lot of attention—especially from his boyfriend, Ky. 5 parts Added Jun 2021 Updated 28 May 2022 7,691 views 5.0 stars (193 votes) 8,493 words •Huge Cock•Hyper Cock•Prehensile Cock•Public Orgasm•Extra facial features•Extra Mouths•Multi-abs•Multicock•Boytaur•Four Legs•Multiarm•Multileg•Multilimb•Six Legs•Multipec•Multitongue•Stretchy•Transformation•Hyper Tongue•Tongue Growth •M/M

Memories by TreborNawoc Tre is psyched. It’s his first day at uni, and he’s hoping to do well in his studies, make friends, and maybe encounter a few other multis like himself. The only thing he’s not sure about is meeting his roommate… Added Sep 2021 4,056 views 5.0 stars (182 votes) 2,013 words •Huge Cock•Prehensile Cock•Extra facial features•Extra Mouths•Multi-abs•Multicock•Multiarm•Multilimb•Multipec•Multitongue•Stacking•Plausible Size Difference•Hyper Tongue•Destruction/Violence•Vore •M/M

Brody by TreborNawoc After being transformed by Dylan, Brody and his boyfriend have some fun exploring his new body. Added Oct 2021 8,226 views 5.0 stars (181 votes) 1,465 words •Cock Growth•Huge Cock•Hyper Cock•Extra facial features•Muscle Growth•Stretchy•Vore •M/M

Dylan by TreborNawoc Dylan and his extra-laden body are always hungry, so when his friend suggests an all-you-can-eat crawl he’s immediately on board. 6 parts Added Aug 2021 Updated 4 Jun 2022 14k views 5.0 stars (181 votes) 11k words •Huge Cock•Extra Mouths•Multi-abs•Multicock•Multiarm•Multileg•Multilimb•Three Legs•Replication•Stretchy•Belly Growth•Brothers•Selfcest•Vore•Absorption•Centaurs•Naga •M/M•M/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 Added Dec 2021 Updated 19 Nov 2022 12k views 5.0 stars (181 votes) 8,673 words •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

The interview by TreborNawoc Brad is nervous about his job interview at MultiTours Resort, but the more he sees on site the more he likes—and they seem to like him, too. Added Oct 2021 5,304 views 5.0 stars (180 votes) 2,166 words •Cock Growth•Huge Cock•Multi-abs•Multicock•Multiarm•Multileg•Multilimb•Getting Taller•Plausible Size Difference•First Time/Virgin•Centaurs •M/M

Danny: Filming a star by TreborNawoc Danny’s special body makes filming a porn shoot extra-intense for everyone involved, the star included. Added Nov 2021 3,887 views 5.0 stars (177 votes) 934 words •Huge Cock•Extra Mouths•Multi-balls•Multicock•Boytaur•Four Legs•Multiarm•Multileg•Multilimb•Multipec•Multitongue•Vore •M/M/M/...

Rowan by TreborNawoc Rowan is excited about his upcoming 18th birthday and his life to come at uni with his best friend turned boyfriend. On the big day, though, a series of changes forces him to begin an entirely new kind of life. 2 parts Added Jan 2022 6,125 views 5.0 stars (171 votes) 2,605 words •Cock Growth•Huge Cock•Hyper Cock•Multi-abs•Multicock•Multiarm•Multileg•Multilimb•Muscle Growth•Crotchhead•Transformation•Human to Animal/Anthro•Tentacle •M/M

Ezra by TreborNawoc At the doctors to get checked over, new multi Ezra runs into the hottest guy he’s ever seen. Added Jun 2022 2,188 views 5.0 stars (143 votes) 1,369 words •Extra Mouths•Multicock•Multiarm•Multileg•Multilimb•Three Legs •M/M

Fabian: Vore Day by TreborNawoc It’s the first Saturday of the month, and that means multi friends Fabian and Cole are resuming their epic rivalry: whoever swallows the most hunks by the end of the day gets to be on top for the celebnration afterwards. Added Jul 2022 2,426 views 5.0 stars (132 votes) 3,171 words •Huge Cock•Extra Mouths•Multicock•Multiarm•Multileg•Multilimb•Vore •M/M•M/M/M/...

Quentin by TreborNawoc Unexpectedly transformed by Dylan, newly stretchy Quentin has no idea what to do now. Fortunately Dylan has some ideas. Added Jul 2022 2,929 views 5.0 stars (132 votes) 1,620 words •Multi-abs•Stretchy•Transformation•Vore•Goo People •M/M

Abyssus Abbey 2 by Pen Darke To protect himself from the devils who want to attack and change him, Tuco must enter the Abyss—little knowing what he will find there. 18 parts Added Feb 2021 Updated 23 Sep 2023 24k views 5.0 stars (79 votes) 132k words (#10) •Huge Cock•Hyper Cock•Prehensile Cock•Wings•Muscle/Strength•Anthro/Furry•Demons•Incubus/Succubus•Witch/Warlock/Wizard•Horror•Pagan gods•Supernatural•Complete •M/M•M/M/M/...

The solitary flesh by Mikeytron A pair of space mercenaries are dispatched to a strange alien world to guard the manufacture of a massive quantity of the medical and cosmetic wonderdrug SynthStem, which allows humans to reshape their bodies. In part one, the stage is set and the stakes are raised. 4 parts Added Sep 2022 Updated 8 Oct 2022 13k views 5.0 stars (77 votes) 24k words •Huge Cock•Other Mental Changes•Hyper Muscle•Immobility•Muscle Growth•Muscle/Strength•Gradual Change•Merging•Aliens•Space Travel•Complete•Set in the Future •M/M

Railway changes by TreborNawoc An extra encounter on a train. Added Oct 2022 1,741 views 5.0 stars (68 votes) 1,468 words •Huge Cock•Extra digits•Multicock•Four Legs•Multileg•Multilimb•Three Legs•Multitongue •M/M

Three is the magic number by TreborNawoc Evan is nervous on his first day teaching at a new school, worried about how different he looks, until a handsome colleague sets him at ease. Added Nov 2022 1,722 views 5.0 stars (62 votes) 2,998 words •Extra digits•Extra facial features•Extra Mouths•Multicock•Multileg•Multilimb•Three Legs •M/M

Encounter with a boytaur by TreborNawoc If you’re going to be stuck in an elevator, it might as well be with your super-hot boytaur office crush. Added Feb 2023 2,090 views 5.0 stars (43 votes) 1,911 words •Huge Cock•Multicock•Boytaur•Four Legs•Multileg•Multilimb•Transformation •M/M

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 Added Sep 2012 32k views 5.0 stars (38 votes) 14k words •Cock Growth•Huge Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Increased Libido•Getting Handsomer•Getting Taller•Size Increase•Hairless •M/M

The Quadruped Society by TreborNawoc Josh is accepted into the ancient and prestigious University of St. Eligius where he learns that amid all of the various student clubs and societies is one devoted to members of the university community with certain differences from the rest of the student body. 9 parts Added Apr 2023 Updated 14 Oct 2023 3,054 views 5.0 stars (35 votes) 16k words •Huge Cock•Extra digits•Four Legs•Multileg•Multilimb•Tongue Growth •M/M

The price by Mikeytron Anthony’s husband, Tom, has just turned 40, and is in despair that his body will never become what he wants it to be. Anthony feels powerless to help, until a mysterious entity gives him the opportunity to rewrite Tom’s past– but there is always a price. A dark but hopefully redemptive story about desperation, time travel, and love. 5 parts Added May 2022 Updated 18 Jun 2022 14k views 5.0 stars (34 votes) 19k words •Cock Growth•Other Mental Changes•Hyper Muscle•Immobility•Muscle Growth•Gradual Change•Retcon•Time Travel•Supernatural•Complete •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. Added May 2022 14k views 5.0 stars (33 votes) 7,506 words •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle Worship•Getting Taller•Plausible Size Difference•Size Decrease•Dom/Sub •M/M

Acclimating by Dream Big Dealing with finding yourself unwillingly summoned into a fantasy-themed world as a fearsome, horned, and hung demon is, it turns out, mostly a matter of adjusting yourself to your new situation. 44 parts Added Mar 2020 Updated 19 Aug 2023 31k views 5.0 stars (30 votes) 43k words (#83) •Cock Growth•Huge Cock•Muscle/Strength•Pointy Ears•Transformation•Plausible Size Difference•Demons•Witch/Warlock/Wizard•Fantasy Realm•Shapeshifting •M/M•M/M/M

As you please by Ybara Montefiore Todd stumbles upon a training camp that offers him a guaranteed routine to make him grow, but he worries what the program might be hiding. 7 parts Added Aug 2022 Updated 1 Oct 2022 20k views 5.0 stars (30 votes) 13k words •Muscle Growth•Gradual Change•Getting Taller•Size Increase •M

Toy story by LenZelig During a storm Bob stumbles across a strange webpage offering something called “The Ultimate Sex Machine”. Intrigued, he clicks “order”, expecting maybe a sophisticated sex toy. Instead he gets Randy, a hunk-shaped machine dedicated to ensuring that Bob experiences ultimate sexual possibilities from now on and willing to reshape reality to make it happen. 2 parts Added Jul 2002 31k views 5.0 stars (27 votes) 6,947 words •Muscle Growth•Muscle/Strength•Age Difference•Incest•Father/Son•Twins•Androids/Cyborgs•Space Travel•Complete •M/M•M/M/M/...•t/t•M/t

Custom fit by HumbleBrag Adam’s family grows in unexpected ways after he reconnects with a childhood friend. 11 parts Added Aug 2022 Updated 8 Oct 2022 13k views 5.0 stars (26 votes) 15k words •Huge Cock•Muscle/Strength •M/M

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. 5 parts Added Jun 2023 Updated 4 Nov 2023 17k views 5.0 stars (26 votes) 32k words •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Self-suck•Public Orgasm•Muscle Growth•Always Shirtless•Public Nudity•Increased Libido•Gradual Change•Getting Taller•Hyper Pheromones •M•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 Added Feb 2020 26k views 5.0 stars (26 votes) 12k words •Cock Growth•Cock Shrinking•Cock Theft•Huge Balls•Huge Cock•Muscle Growth•Muscle Theft•Getting Taller•Size Increase•Dom/Sub •M/M

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 Added Jan 2022 Updated 4 Nov 2023 84k views 4.9 stars (201 votes) 61k words (#47) •Cock Growth•Huge Balls•Huge Cock•Straight to Gay•Muscle Growth•Butt Growth•Increased Libido•Gradual Change•Voice Deepening•Getting Taller•Size Increase•Getting Hairy•Suggestion•Hetero Sex•Dom/Sub•Nonconsensual change •M/M•M/F

grUV by quickquezzed Friends go out clubbing by the water and make a hunky new friend, Brad, who likes to swim and looks great in just a red speedo. Brad has a secret that he hadn’t planned to show his new friend, but things soon get pleasantly out of hand. Added Nov 2017 42k views 4.9 stars (170 votes) 5,910 words •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Muscle Growth•Muscle/Strength•Size Increase •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 Added Feb 2023 Updated 24 Jun 2023 48k views 4.9 stars (138 votes) 86k words (#30) •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/...

Becoming a family of their own by TreborNawoc It’s date night for Alex and Dylan, and Alex has plans to make the evening truly special. 6 parts Added Aug 2022 Updated 8 Oct 2022 5,582 views 4.9 stars (117 votes) 20k words •Huge Cock•Hyper Cock•Extra digits•Extra facial features•Extra Mouths•Multi-abs•Multi-balls•Multicock•Boytaur•Four Legs•Multiarm•Multileg•Multilimb•Three Legs•Gradual Change•Transformation•Getting Taller•Hyper Tongue •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 Added Jun 2022 Updated 20 May 2023 94k views 4.9 stars (113 votes) 57k words (#53) •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

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 Added Jul 2022 Updated 25 Mar 2023 43k views 4.9 stars (76 votes) 48k words (#71) •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/...

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 Added Feb 2020 Updated 16 May 2020 26k views 4.9 stars (70 votes) 125k words (#14) •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

5D Super User: Brandon by pkak2k12 Brandon finds out he has an unexpected gift the second he becomes 18. 11 parts Added Jan 2023 Updated 18 Mar 2023 28k views 4.9 stars (67 votes) 23k words •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

The heart is a muscle by Mikeytron A muscle growth bildungsroman: shy small nerd meets his college roommate, who’s friendly, confident, and fucking huge. Growth occurs, both emotional and physical, over the course of their first year together. 6 parts Added Jun 2021 Updated 31 Jul 2021 30k views 4.9 stars (66 votes) 39k words •Hyper Muscle•Hyper Strength•Muscle Growth•Muscle Gut•Muscle/Strength•Gradual Change•Plausible Size Difference•Complete •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 Added Dec 2020 Updated 12 Aug 2023 67k views 4.9 stars (65 votes) 58k words (#52) •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

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 Added Mar 2023 Updated 20 May 2023 56k views 4.9 stars (60 votes) 48k words (#73) •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•Getting Hairy•Lycra/Spandex•Complete •M/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 Added Apr 2020 Updated 10 Jun 2023 123k views 4.9 stars (60 votes) 99k words (#24) •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

Primal attraction by Mikeytron Two dedicated hardgainers have been noticing each other at the gym. Their paths finally cross, and they begin to change– subtly at first, but it won’t stay that way. 5 parts Added Jan 2022 Updated 19 Feb 2022 16k views 4.9 stars (58 votes) 12k words •Muscle Growth•Muscle/Strength•Muscle Worship•Gradual Change•Human to Animal/Anthro•Getting Hairy•Werewolves•Supernatural•Complete •M/M

Feeding a god by TreborNawoc A towering, man-devouring teen muscle god’s gotta eat—and someone’s got to supply the meals that make him grow.  Added Dec 2022 7,923 views 4.9 stars (57 votes) 3,050 words •Cock Growth•Cock Vore•Multi-abs•Multicock•Multipec•Multitongue•Muscle Growth•Getting Taller•Plausible Size Difference•Vore •M/M•M/M/M

Hulkster and Hoppy by Also Known As Jeremy “Hoppy” Hopkins and Alexander “The Hulkster” Hogan were best friends in high school, but at the twenty-year reunion, the Hulkster discovers what Hoppy has been up to all those years in-between. 23 parts Added Feb 2021 Updated 10 Jul 2021 30k views 4.9 stars (56 votes) 119k words (#16) •Cock Growth•Huge Cock•Muscle Growth•Man Scent•Increased Libido•Getting Handsomer•Gradual Change•Getting Taller•Plausible Size Difference•Size Increase•Witch/Warlock/Wizard •M/M•M/M/M•M/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. Added Dec 2003 85k views 4.9 stars (55 votes) 8,642 words •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Straight to Gay•Hyper Muscle•Muscle Growth•Muscle/Strength•Getting Hairy•Nonconsensual change•Infectious •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 Added Jun 2019 Updated 25 Jun 2022 69k views 4.9 stars (54 votes) 119k words (#17) •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•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/...

Centurion of light by Ravine Mountain A great new story in which a centurion, Marcus, and five of his best men are transformed by the god Mars—and charged with a mission. 12 parts Added May 2014 Updated 5 Jan 2019 56k views 4.9 stars (49 votes) 38k words •Cock Growth•Huge Cock•Hyper Cock•Nipcocks•Hyper Cum•Nipple Emissions•Multi-abs•Muscle Growth•Muscle/Strength•Voice Deepening•Size Increase•Incest•Twins•Demons•Pagan gods•Ancient Era •M/M•M/M/M•M/M/M/...

The last month by Michverdun After a chance encounter in the forest, the youngest son of a monster-hunting family struggles with his last month being human. 4 parts Added Sep 2023 Updated 28 Oct 2023 8,619 views 4.9 stars (48 votes) 25k words •Hyper Muscle•Muscle Growth•Muscle/Strength•Muscle Worship•Getting Hairy•Werewolves•Urban Fantasy•Supernatural•Complete •M•M/M

Meat by Mikeytron You are what you eat. A horror story for Halloween. Added Oct 2021 12k views 4.9 stars (46 votes) 5,527 words •Cock Growth•Hyper Cock•Addiction•Hyper Strength•Immobility•Muscle Growth•Muscle/Strength•Gradual Change•Halloween•Complete •NS

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. 11 parts Added Jan 2023 Updated 21 Oct 2023 27k views 4.9 stars (44 votes) 60k words (#49) •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/...

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 Added May 2017 Updated 19 May 2017 28k views 4.9 stars (44 votes) 8,693 words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Social Media•Infectious •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 Added Jan 2017 Updated 23 Sep 2023 45k views 4.9 stars (41 votes) 22k words •Huge Cock•Cum Milking•Nipple Emissions•Muscle Breast•Muscle Growth•Muscle/Strength•Increased Libido•Gradual Change•Human to Animal/Anthro•Getting Hairy•Nonconsensual change•Hypnosis•Mind Control•Complete •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 Added Nov 2020 Updated 27 Feb 2021 53k views 4.9 stars (40 votes) 79k words (#34) •Cock Growth•Huge Cock•Pec Fucking•Muscle Breast•Muscle Growth•Muscle/Strength•Butt Growth•Belly Growth•Gradual Change•Getting Taller•Plausible Size Difference•Getting Hairy•App•Age Difference•First Time/Virgin•Incest•Brothers•Father/Son•Valentine’s Day •M/M•M/M/M

Make the fur fly by LordTronimator After a boy buys a custom-made fursuit based off his fursona and puts it on, his body begins to experience strange changes that only he seems to notice. 14 parts Added Aug 2020 Updated 6 Nov 2021 29k views 4.9 stars (39 votes) 22k words •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Public Orgasm•Public Nudity•Gradual Change•Transformation•Human to Animal/Anthro•Retcon•Nonconsensual change•Anthro/Furry •M•M/M

So you wanna be a hunk? by YellowJester The new game show So You Wanna Be a Hunk offers men down on their luck an opportunity to participate in various challenges to win the chance to improve their bodies and become hunks! 5 parts Added Mar 2023 Updated 17 Jun 2023 19k views 4.9 stars (39 votes) 21k words •Cock Growth•Ball Growth•Huge Cock•Nipple Emissions•Getting Dumber•Other Mental Changes•Straight to Gay•Muscle Growth•Public Nudity•Man Scent•Getting Handsomer•Voice Deepening•Getting Taller•Age Regression•Getting Hairy•Hairless•Hyper Pheromones•Complete •M•M/M•M/M/M/...

Tell me about my boner by BRK The gag tee shirt with a provocative slogan seemed like a good idea when he’d ordered it during a late-night stroke session, but now that it’s here it seems intent on changing his life in ways he might not be ready for. 7 parts Added Oct 2019 Updated 3 Dec 2022 32k views 4.9 stars (39 votes) 20k words •Always Hard•Cock Growth•Huge Balls•Huge Cock•Self-suck•Multicock•Suggestion •M•M/M

The Dragonborn by TreborNawoc After an unexpected attack by local bullies on his eightteenth birthday, Xander finds himself in a dreamworld where he is offered a chance to be reborn. Added Feb 2023 3,612 views 4.9 stars (37 votes) 2,658 words •Cock Growth•Multi-abs•Multicock•Multiarm•Multilimb•Muscle Growth•Getting Taller•Size Increase•Tongue Growth•Destruction/Violence•Humiliation•Nonconsensual sex•Vore•Dragons •M/M

The revisualizer by BRK A set of weird controls at the tiny cable TV broadcasting studio has a lot of increasingly exciting effects on the guy in the picture. 3 parts Added Oct 2012 Updated 8 Dec 2017 42k views 4.9 stars (37 votes) 11k words •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Nipcocks•Self-suck•Nipple Emissions•Muscle Growth•Muscle/Strength•Size Increase•Getting Hairy•Nonconsensual change •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 Added Jan 2021 Updated 12 Feb 2022 37k views 4.9 stars (36 votes) 71k words (#40) •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/...

From the files of the Magic Misuse Office by BRK High-ranking magilegal investigator Liam O'Brien reports on a YouTube video in which twin college students have an illicitly magical effect on anyone watching. 6 parts Added Sep 2017 Updated 4 Sep 2021 19k views 4.9 stars (35 votes) 20k words •Cock Growth•Huge Cock•Multicock•Multihead•Multiarm•Multilimb•Multitorso•Replication•Straight to Gay•Muscle Growth•Increased Libido•Transformation•Social Media•Incest•Twins•Selfcest•Merging•Witch/Warlock/Wizard •M/M•M/M/M

Click bate by Dream Big Andy didn’t remember ordering this weird butt and cock pleasuring equipment, but, hey, it looked like it might be fun to play with… 26 parts Added Nov 2020 Updated 5 Mar 2022 28k views 4.9 stars (34 votes) 23k words •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Other Mental Changes•Increased Libido•Transformation•A.I.-Controlled Change•Dildos/Toys•Merging•Set during the Pandemic •M/M•M/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 Added Apr 2020 Updated 8 Aug 2020 39k views 4.9 stars (34 votes) 22k words •Cock Growth•Huge Balls•Huge Cock•Nipple Emissions•Muscle Growth•Muscle/Strength•Butt Growth•Gradual Change•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 Added May 2019 Updated 15 Jun 2019 41k views 4.9 stars (33 votes) 19k words •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Straight to Gay•Muscle Growth•Muscle/Strength•Getting Taller•Giants•Plausible Size Difference•Size Increase•Infectious

Stories to tell in the dark by Thorn Sean discovers a book that is filled with some surprising stories. 2 parts Added Apr 2021 Updated 17 Apr 2021 17k views 4.9 stars (33 votes) 9,685 words •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle Gut•Butt Growth•Belly Growth•Voice Deepening•Getting Taller•Size Increase•Getting Fatter•Inflation

The formula by hyperboi Mike begs his genius friend Jeff to try coming up with a cock growth formula. Jeff assumes Mike doesn’t want to look too small when he goes out for the swim team, but the secret truth is, Mike’s ambitions aren’t limited to his own junk. 4 parts Added Jan 2021 Updated 13 Feb 2021 26k views 4.9 stars (32 votes) 15k words •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Muscle Growth•Muscle/Strength•Age Difference•Incest•Brothers•Father/Son•Twins •t/t•t/t/t...

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 Added Feb 2022 Updated 8 Jul 2023 35k views 4.9 stars (32 votes) 54k words (#63) •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

Best birthday ever by TheSizeKing Zac is already above average. But when his birthday comes around, he gets everything he wishes for and then some. 5 parts Added Feb 2020 30k views 4.9 stars (31 votes) 15k words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Muscle/Strength •M/M

Joined by BRK Dylan wakes up kissing an incredibly beautiful man he’s never met before, and finds that he’s more connected to this man than any lover he’s ever had. 5 parts Added Sep 2017 Updated 6 Feb 2021 18k views 4.9 stars (30 votes) 23k words •Cock Growth•Huge Cock•Extra digits•Multicock•Multihead•Multitongue•Multitorso•Replication•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•Selfcest•Nonconsensual change•Merging •M/M•M/M/M

Bloodpact by Michverdun Ash has been on the run for a while, with no end in sight. After finally finding a place to stay and meeting a man named Wyatt, Ash finds the answer to Wyatt’s problems: his own blood. 4 parts Added Feb 2023 Updated 25 Feb 2023 7,943 views 4.9 stars (29 votes) 21k words •Hyper Muscle•Muscle Growth•Muscle Worship•Destruction/Violence•Blood•Demons•Supernatural•Complete•Alcohol •M/M

Anomalous Materials Research Facility 3‑DL by Mad Dog and Gurak Working with exotic materials on a distant research space station is all in a day’s work for Carter, a theoretical physicist and the sole mundane human in a crew of sexy (and sex-loving) creatures straight out of a very dirty fantasy novel. But when you work with stuff that scoffs at the laws of physics, normality can’t remain unbent forever. 6 parts Added Sep 2019 Updated 21 Mar 2020 24k views 4.9 stars (28 votes) 32k words •Cock Growth•Huge Cock•Hyper Cock•Multicock•Multihead•Multilimb•Male Pregnancy•Transformation•Size Increase•Anthro/Furry•Centaurs•Demons•Orcs •M/M•M/M/M

Body game: Encounter 813 by BRK Reggie isn’t sure why the team-building get-together for the web design firm he’s working for is being held at an abandoned mall; he just knows he can’t get his sexy boss out of his mind. 9 parts Added May 2016 Updated 12 Jun 2021 41k views 4.9 stars (28 votes) 49k words (#70) •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Extra digits•Multi-abs•Multicock•Multiarm•Multilimb•Multipec•Multitongue•Replication•Stacking•Muscle Growth•Stretchy•Foot Growth•Getting Taller•Plausible Size Difference•Size Increase•Getting Hairy•Hyper Tongue•Tongue Growth•Mouthcock•Incest•Brothers•Selfcest •M/M•M/M/M

The bubblebutt curse by Gato-Cat Picky Luke, who prefers bottom-heavy men, gets cursed so that every man he finds attractive grows a massive, sensitive bubble butt. Added Sep 2022 7,504 views 4.9 stars (28 votes) 3,407 words •Butt Growth•Inflation•Nonconsensual change •M/M

Mountainheart by BRK It’s 1999, and Glenn, until now kept from his heritage, uncovers what it means to be a Sheridan. Fortunately, he has his closest friend, Eamon, at his side. 13 parts Added Nov 2021 Updated 18 Nov 2023 21k views 4.9 stars (27 votes) 67k words (#44) •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle/Strength•Always Shirtless•Increased Libido•Gradual Change•Getting Taller•Plausible Size Difference•Size Increase•Age Regression•Getting Hairy•Age Difference•First Time/Virgin•Incest•Brothers•Father/Son•Anthro/Furry•Werebears•Werewolves•Supernatural•Shapeshifting•Complete•Alcohol •M/M

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. Added Mar 2023 8,739 views 4.9 stars (27 votes) 10k words •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•Getting Hairy•Getting Fatter•Inflation•Complete •M/M•M/M/M

Tying the knot by DracumSum Mike got lost in the woods, during the night of a full moon. He heard a twig snap behind him. And now he’s got a new boyfriend. 4 parts Added Jan 2021 Updated 1 May 2021 17k views 4.9 stars (27 votes) 20k words •Cock Growth•Cum inflation•Muscle Growth•Transformation•Getting Hairy•Anthro/Furry•Werewolves •M/M

The pinball machine by Thorn Tyler works at an arcade with a secret pinball machine that unveils itself for customers when it wants to be played with. 2 parts Added Jan 2021 Updated 13 Feb 2021 12k views 4.9 stars (26 votes) 12k words •Cock Growth•Huge Cock•Muscle Growth •M/M

The Body-Jack 9000 by The Gecko Rose A young man discovers the most incredible jackoff device ever, and he just can’t stop playing with it! 6 parts Added Feb 2018 Updated 30 Mar 2018 18k views 4.9 stars (25 votes) 6,176 words •Cock Growth•Self-suck•Multiarm•Multilimb•Merging •M/M

The double room by Tyler Wilson Tyler is confused to find two roommates listed for his double room at the university, but quickly finds that this new arrangement will work very well. 3 parts Added Jul 2017 Updated 2 Feb 2019 16k views 4.9 stars (25 votes) 7,922 words •Huge Cock•Multicock•Multihead•Multiarm•Multilimb•Multitorso•Incest•Twins•Triplets•Merging •M/M•M/M/M

The Festival of Haasenpfaap by S. Q. Neemie Wes’s roommate Zeb ropes him into celebrating his family’s yearly autumn festival of Haasenpfaap. When Wes is inadvertently chosen as this season’s Haasenpfaapeer, Zeb and Wes have to figure out how to reverse the changes Wes experiences. 5 parts Added Dec 2022 Updated 24 Dec 2022 6,091 views 4.9 stars (25 votes) 27k words •Cock Body•Hyper Cum•Nipple Emissions•Multicock•Muscle Breast•Muscle Growth•Gradual Change•Getting Taller•Complete •M/M

Hey, buddy by Dream Big Ben’s high school crush, Charlie, resurfaces in his life after a mysterious incident at sea left him with a strange tattoo and a propensity for slow, inexplicable growth. 15 parts Added Oct 2019 Updated 8 Aug 2020 25k views 4.9 stars (25 votes) 15k words •Cock Growth•Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•Gradual Change•Transformation•Giants•Plausible Size Difference•Size Increase •M/M

Old buds, new bods by CubGuySC Ryan recounts a life-changing episode (hair, teeth and growth included). Added Jul 2006 26k views 4.9 stars (25 votes) 5,188 words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Human to Animal/Anthro•Getting Hairy•Anthro/Furry •M/M

The simulated universe by Thorn A group of men play a new board game that can simulate a “universe” where they play as trailblazers and are granted boons, which could lead to a few…enhancements. 6 parts Added Jul 2023 Updated 19 Aug 2023 11k views 4.9 stars (25 votes) 26k words •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Muscle Breast•Muscle Growth•Voluptuous Men•Butt Growth•Belly Growth•Increased Libido•Foot Growth•Gradual Change•Transformation•Getting Taller•Plausible Size Difference•Size Increase•Getting Hairy•Inflation•Age Difference•Father/Son •M/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 Added Mar 2003 113k views 4.8 stars (94 votes) 23k words •Always Hard•Cock Growth•Huge Cock•Addiction•Straight to Gay•Muscle Growth•Muscle/Strength•Gradual Change•Getting Hairy•Incest•Brothers •t/t•M/t

Molten wings by Mikeytron The old world is dying, and the new world struggles to be born; now is the time of monsters. Added Jun 2022 8,704 views 4.8 stars (66 votes) 9,388 words •Cock Growth•Huge Cock•Hyper Cock•Other Mental Changes•Hyper Muscle•Muscle Growth•Muscle/Strength•Gradual Change•Nonconsensual change•Nonconsensual sex•Demons•Supernatural•Mind Control•Complete •M/M

My best friend’s muscles by Mikeytron A group of horny gay researchers develop a new compound that allows unprecedented muscle growth. 5 parts Added Sep 2021 Updated 13 Nov 2021 33k views 4.8 stars (64 votes) 17k words •Hyper Muscle•Muscle Growth•Muscle Gut•Muscle/Strength•Gradual Change•Complete •M/M

A real man by DoubleCream A douchey gym bro wakes up in another world, in another body. 6 parts Added Jan 2021 Updated 4 Mar 2023 36k views 4.8 stars (57 votes) 30k words •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

Fortitude by BRK A starship full of hot young recruits gets marooned in a strange part of space that seems to have an augmenting effect on the crew, leaving the AI and the unexpectedly immune commander to try to get them free. 4 parts Added Aug 2009 Updated 3 Dec 2022 37k views 4.8 stars (52 votes) 15k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Space Travel •M/M•M/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 Added Sep 2004 72k views 4.8 stars (50 votes) 26k words •Cock Growth•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Age Difference•First Time/Virgin•Incest•Brothers•Father/Son•Twins•Restraints

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 Added Apr 2021 Updated 21 Aug 2021 47k views 4.8 stars (47 votes) 22k words •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

Don’t talk about me! by jewelbee What if one day, everything someone said about you became true? Everything someone says to your face, whether lie, sarcasm, joke, hyperbole… would change you. 18 year old campus douche Nick learns this the hard way, faced with a curse after he led on the wrong girl. How will he get rid of the curse, and more importantly… just how much will he change in the meantime? 3 parts Added Aug 2020 Updated 10 Jul 2021 17k views 4.8 stars (46 votes) 4,348 words •Public Orgasm•Straight to Gay•Belly Growth•Getting Fatter•Retcon•Suggestion•Incest•Father/Son•Nonconsensual change

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 Added Jul 2018 Updated 6 Oct 2018 88k views 4.8 stars (45 votes) 88k words (#28) •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/...

A.I. by Corwin Tim’s homemade A.I. software decides to help him get huge. 11 parts Added Dec 2013 73k views 4.8 stars (44 votes) 31k words •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

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

Public relations by Maximilian When Jamie gets an out-of-the-blue invitation to meet up with a friend he’d fallen out of touch with, he doesn’t realize Adam has an ulterior motive—or that it involves an unwilling introduction to growth and magic. 18 parts Added Jun 2015 Updated 27 Apr 2019 67k views 4.8 stars (44 votes) 125k words (#13) •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Muscle Gut•Muscle/Strength•Getting Taller•Giants•Plausible Size Difference•Size Decrease•Size Increase•Getting Hairy•Destruction/Violence•Restraints•Witch/Warlock/Wizard•Gay Pride •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. Added Nov 2016 49k views 4.8 stars (44 votes) 3,726 words •Cock Growth•Huge Cock•Hyper Cock•Straight to Gay•Muscle Growth•Muscle/Strength•All Dialog •M/M

A big year by Dancer Andy gets a big surprise when a fortune teller tells him he will have big gains this year. Added Mar 2018 24k views 4.8 stars (42 votes) 4,316 words •Cock Growth•Huge Cock•Immobility•Muscle Growth•Muscle/Strength•Gradual Change•Plausible Size Difference•Size Increase •M/M

Tiger troubles by Meddler Incs Greg hopes for big muscles from a new experimental growth hormone—only he’s not counting the side effects, or his new brothers in fur, muscle, and cock. 2 parts Added Dec 2014 Updated 2 Sep 2016 27k views 4.8 stars (42 votes) 5,763 words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Anthro/Furry •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 Added Mar 2019 Updated 8 Jul 2023 50k views 4.8 stars (41 votes) 11k words •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

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.  2 parts Added Mar 2023 Updated 8 Apr 2023 15k views 4.8 stars (41 votes) 20k words •Cock Growth•Muscle Growth•Increased Libido•Getting Taller•Size Increase •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 Added Apr 2022 Updated 10 Sep 2022 31k views 4.8 stars (40 votes) 18k words •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

The Champion by Mikeytron A twist on the “be careful what you wish for” formula, regarding the history of an implausibly huge Mr. Olympia champion. 2 parts Added May 2021 Updated 22 May 2021 14k views 4.8 stars (38 votes) 10k words •Hyper Muscle•Muscle Growth•Muscle/Strength•Demons•Supernatural•Complete

True muscle god by mf81 An encounter with a strange artifact from the ancient Aegean leads Richard to a divine encounter. 3 parts Added Mar 2006 83k views 4.8 stars (38 votes) 7,686 words •Cock Growth•Huge Balls•Huge Cock•Muscle Growth•Muscle/Strength•First Time/Virgin•Pagan gods •M/M

The power of suggestion by BRK On a long bus trip, Jordan can't help using his ability to suggest physical changes on his handsome seatmate, but things soon get out of hand. Added Feb 2009 46k views 4.8 stars (37 votes) 1,878 words •Cock Growth•Huge Cock•Multicock•Replication•Muscle Growth•Muscle/Strength•Size Increase•Retcon•Suggestion•Incest•Brothers•Twins•Selfcest•Complete

Love/shift by BRK Maxfield has very mixed feelings about leaving the city and all his tech behind to spend the summer after graduation halfway up a mountain in the family’s backwoods cabin—just him, his dad, and a whole lot of secrets. 11 parts Added Dec 2017 Updated 27 Apr 2019 44k views 4.8 stars (36 votes) 68k words (#43) •Muscle Growth•Muscle/Strength•Always Shirtless•Man Scent•Gradual Change•Transformation•Size Increase•Getting Hairy•Age Difference•Incest•Father/Son•Werebears•Supernatural•Complete •M/M

Touch by BRK Kevin goes to college where his gift for making guys he likes willing to casually touch him seems to intensify just as he’s moving in with his hunky older brother. 5 parts Added Mar 2019 Updated 10 Aug 2019 24k views 4.8 stars (36 votes) 31k words •Huge Cock•Other Mental Changes•Muscle/Strength•Always Shirtless•Incest•Brothers•Complete •M/M•M/M/M

Days & Knights by iHeywood Bash wants to surprise his family by coming home from college for Thanksgiving early. But he gets a surprise himself. His dad is sucking his own massive cock. 3 parts Added Apr 2022 Updated 28 May 2022 10k views 4.8 stars (34 votes) 9,852 words •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Muscle Growth•Age Difference•Incest•Father/Son•Thanksgiving •M/M•M/M/M

A different kind of closeness by Salem Noctua When Liam found a suspicious e-mail that led him to an even more suspicious website, he didn’t know how to react... until he got to know the “special changes” that came with the site’s product. And who else would he test it with other than his best friend and roommate? 2 parts Added Jul 2022 3,851 views 4.8 stars (34 votes) 25k words •Multicock•Multihead•Multitorso•Nonconsensual change•Merging•Shared Body•Complete •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 Added Jan 2023 Updated 11 Mar 2023 22k views 4.8 stars (33 votes) 6,734 words •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

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 Added Sep 2012 79k views 4.8 stars (33 votes) 91k words (#26) •Cock Growth•Huge Cock•Hyper Strength•Muscle Growth•Muscle/Strength•Increased Libido•Size Increase•Bisexual•Destruction/Violence•Hyper Pheromones

Lycan-cock by Harvey Church After a late night drinking, Luka wakes up with a strange bite mark. He doesn’t think much of it until the moon comes out to awaken the beastly urges dwelling inside of him. Added Oct 2022 8,506 views 4.8 stars (31 votes) 4,605 words •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Self-suck•Cum Milking•Hyper Cum•Straight to Gay•Muscle Growth•Muscle/Strength•Man Scent•Increased Libido•Transformation•Plausible Size Difference•Size Increase•Anthro/Furry•Werewolves•Halloween •M/M

Christmas wish by Riu Two grown-up brothers follow their childhood tradition of waiting up for Santa. Only this time, after a few shots of special whiskey, a different kind of Christmas wish is granted. Added Dec 2016 27k views 4.8 stars (30 votes) 3,925 words •Cock Growth•Huge Cock•Hyper Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Suggestion•Incest•Brothers•Christmas •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 Added May 2023 Updated 29 Jul 2023 49k views 4.8 stars (30 votes) 18k words •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•Getting Hairy•Destruction/Violence•Infectious•Complete •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. Added Oct 2020 12k views 4.8 stars (30 votes) 2,534 words •Cock Growth•Wings•Hyper Muscle•Muscle Growth•Transformation•Getting Taller•Inflation•Infectious•Incubus/Succubus•Supernatural•Immortality•Shapeshifting •M/M

Mutant by Marquis de Rent Tom discovers that he is a mutant with the power to grow men that have sex with him. College jock Chris decides to take advantage of it. Added Oct 2016 52k views 4.8 stars (30 votes) 4,202 words •Cock Growth•Huge Cock•Hyper Cock•Straight to Gay•Immobility•Muscle Growth•Muscle/Strength•Giants•Size Increase•Superhero/Supervillain •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. Added Oct 2022 25k views 4.8 stars (29 votes) 4,977 words •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

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. Added Oct 2020 11k views 4.8 stars (29 votes) 3,861 words •Cock Growth•Cock Shrinking•Straight to Gay•Muscle/Strength•Man Scent•Dom/Sub•Humiliation •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 Added Oct 2017 Updated 22 Dec 2017 54k views 4.8 stars (29 votes) 29k words •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•Getting Hairy•Destruction/Violence•Sex-Slave•Fourth of July •M/M

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 Added Jan 2016 Updated 11 May 2016 41k views 4.8 stars (29 votes) 6,753 words •Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Age Difference•Incest•Father/Son•Infectious •M/M

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 Added May 2022 Updated 27 May 2023 18k views 4.8 stars (28 votes) 7,872 words •Cock Growth•Cock Pumping•Huge Cock•Hyper Cock •M/M

The clockwork dial by RdyRoger A man finds what looks like a beat-up old pocket watch, but when he gets it working again he finds its intricate dials and mechanisms are actually designed to make other guys incrementally—like his roommate Gabe, for example. Added Apr 2012 26k views 4.8 stars (28 votes) 3,603 words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Increased Libido•Gradual Change•Age Regression•Getting Hairy

The bet by JayPat Brandon can't believe that Derek isn't into the muscles of their fellow students like he and Peter are, and he ends up betting Peter that he'll get Derek obsessing about muscle by graduation. 4 parts Added Oct 2012 42k views 4.8 stars (27 votes) 32k words •Muscle Growth•Muscle/Strength•Size Increase•Suggestion •t/t

Blessing or curse by Ultra GMan John has something a lot of guys would kill for a cock that gets bigger when you have certain kinds of sex. But that’s not all it’s cracked up to be—and the change isn’t always for the better. 18 parts Added Jan 2012 67k views 4.8 stars (26 votes) 50k words (#68) •Cock Growth•Huge Balls•Huge Cock•Self-suck•Muscle Growth•Dildos/Toys •M/M

Controlling Shayne’s body by Ballmeat My roommate Jack suddenly got an app that controls my body, and milked me of every drop of my cum by giving me the longest and most intense orgasm of my life. And it looks like this is just the beginning, and he intends to change my body in even more ways to come! 2 parts Added Nov 2022 Updated 3 Dec 2022 7,677 views 4.8 stars (26 votes) 4,810 words •Always Hard•Cock Shrinking•Hyper Cum•Increased Libido•App•Humiliation•Nonconsensual change •M/M

Cutting through by Peeda The story of a boy, a knife and a fantasy. 4 parts Added Dec 2015 Updated 25 May 2016 26k views 4.8 stars (26 votes) 5,776 words •Self-suck•Multilimb•Detachable•Transformation•Body Swap •M/M

Many hands massage by The Gecko Rose Handsome masseur Raph uses a variety of skills and techniques to give you the best massage possible. 5 parts Added May 2022 Updated 4 Jun 2022 4,428 views 4.8 stars (26 votes) 14k words •Cock Growth•Self-suck•Extra digits•Multi-abs•Multicock•Multihead•Multiarm•Multileg•Multilimb•Replication•Stretchy•Detachable•Selfcest•Shapeshifting •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 Added Jan 2017 Updated 5 Nov 2022 47k views 4.8 stars (26 votes) 12k words •Huge Cock•Nipcocks•Nipple Emissions•Muscle Breast•Muscle Growth•Muscle Gut•Muscle/Strength•Belly Growth•Size Increase•Christmas •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 Added Nov 2021 Updated 25 Dec 2021 31k views 4.8 stars (25 votes) 19k words •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 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 Added Jul 2014 32k views 4.8 stars (25 votes) 16k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Human to Animal/Anthro•Infectious•Anthro/Furry •M/M

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 Added Jun 2012 Updated 28 Jul 2017 158k views 4.7 stars (103 votes) 66k words (#45) •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...

Brother-in-law by Jock Ace, a Marine, meets and becomes enamored of his sister’s fiancé, Josh. A rare (for Metabods) tale with no alterations. Added May 2006 139k views 4.7 stars (98 votes) 13k words •Huge Cock•Muscle/Strength

Alpha House by NBCK99 A collection of young guys take part in a reality series where the action includes everyone spinning a wheel and getting random body changes. 3 parts Added Mar 2015 Updated 15 May 2015 56k views 4.7 stars (82 votes) 12k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Hyper Pheromones

Gooed friends by Ziel The author, prompted to write about multi-limb and keen to indulge in his love for “slime boys,” offers a story rife with gooey fun, cute sappy young love, multi-limbs, consentacles and some mild muscle and junk growth for good measure. 5 parts Added Jul 2014 Updated 5 Jan 2018 46k views 4.7 stars (73 votes) 39k words (#98) •Cock Growth•Huge Cock•Multicock•Multilimb•Size Increase•Goo People•Tentacle•Halloween•Shapeshifting •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 Added Nov 2014 Updated 22 Dec 2017 74k views 4.7 stars (58 votes) 22k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Getting Hairy•Dom/Sub•Nonconsensual change•Werewolves •M/M

Shift by NBCK99 At first there were only a few of those abnormally tall, wildly muscular, huge-cocked, boner-inducing half-naked guys, encountered here and there on a train, in a mall, a demigod amidst the chaff. That was at first. 5 parts Added Jul 2014 Updated 30 Mar 2016 40k views 4.7 stars (58 votes) 14k words •Cock Growth•Huge Cock•Hyper Cock•Multiarm•Muscle Growth•Muscle/Strength•Plausible Size Difference•Retcon •M/M•M/M/M

American giants by Jonathan Banner Johnny is introduced into a world of big men who are growing enormous cocks. 6 parts Added Jan 2015 49k views 4.7 stars (55 votes) 27k words •Cock Growth•Huge Cock•Foot Growth •M/M•M/M/M

The blue banana by BRK Mike unknowingly eats an artifact of the universe. Added Jan 2015 39k views 4.7 stars (51 votes) 3,507 words •Always Hard•Cock Growth•Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•Size Increase•Suggestion•Complete •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 Added Mar 2010 Updated 2 Mar 2016 126k views 4.7 stars (47 votes) 16k words •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...

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 Added Jun 2015 31k views 4.7 stars (43 votes) 8,362 words •Cock Growth•Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Getting Handsomer•Retcon•Suggestion•Infectious•Immortality •M/M•M/M/M

Flashmob by BRK Jacob receives a strange camera that has an unexpected effect when he takes a picture of his hunky roommate, Keith, with whom he’s become increasingly smitten. 12 parts Added Mar 2015 Updated 30 May 2020 36k views 4.7 stars (43 votes) 50k words (#67) •Huge Cock•Multicock•Replication•Muscle Growth•Muscle/Strength•Always Shirtless•Getting Taller•Selfcest •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 Added Aug 2017 Updated 18 Dec 2021 53k views 4.7 stars (43 votes) 28k words •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/...

Ben’s escapades by Kaelan Ben undergoes medical treatment to make his genitals unusually huge, but is he ready for the dramatic changes that it’ll bring to the rest of his life? 9 parts Added Feb 2018 Updated 15 Jun 2018 59k views 4.7 stars (41 votes) 34k words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Nipple Emissions•Muscle Growth•Muscle/Strength•Gradual Change•Incest•Brothers •M/M•M/M/M

Jock bros by John Perrot Derek convinces his friend Matt to get ‘jocked up’. They never imagined the growth that would follow… Added Feb 2021 29k views 4.7 stars (41 votes) 4,800 words •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•Getting Hairy•Complete •t/t

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 Added Jan 2008 72k views 4.7 stars (39 votes) 11k words •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

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 Added May 2013 Updated 16 Jul 2022 115k views 4.7 stars (39 votes) 70k words (#41) •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/...

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 Added Dec 2018 Updated 4 Jun 2022 37k views 4.7 stars (38 votes) 47k words (#76) •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

Domination by dunnyboy Jay's already growing submission to Chris escalates dramatically as Chris reveals he's been taking injections that will turn him into the ultimate muscle fantasy. But Chris won't be the only one affected. Added Feb 2017 48k views 4.7 stars (37 votes) 17k words •Cock Growth•Huge Cock•Hermaphrodite•Muscle Growth•Muscle/Strength•Man Scent•Size Increase•Getting Hairy•Dom/Sub •M/M

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 Added Jun 2018 Updated 29 Jun 2018 35k views 4.7 stars (34 votes) 14k words •Cock Growth•Cockfucking•Huge Cock•Hyper Cock•Self-suck•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase

Coffee coffee by NBCK99 The employees at the campus’s hottest coffee shop seem to be getting sexier… and so are the customers. 2 parts Added Dec 2010 35k views 4.7 stars (33 votes) 5,251 words •Always Hard•Cock Growth•Huge Cock•Other Mental Changes•Straight to Gay•Muscle Growth•Muscle/Strength•Increased Libido•Getting Taller•Size Increase •M/M•M/M/M

Collarbone cock by BRK Nick’s new Picthread page is nothing but pictures of guys whose cocks reach up to their collarbones. Funny thing is, they’re not morphs at all, despite what Nick’s roommate thinks. Or, rather, used to think. Added Apr 2013 34k views 4.7 stars (33 votes) 2,189 words •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Muscle/Strength•Retcon•Social Media •M/M•M/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 Added Jul 2011 56k views 4.7 stars (33 votes) 14k words •Cock Growth•Huge Cock•Getting Dumber•Straight to Gay•Muscle Growth•Muscle/Strength•Transformation•Nonconsensual change•Nonconsensual sex•Mind Control •M/M

The problem with patrons by SpaceWerewolf Levi’s desperation to find someone who’ll help him grow attracts the attention of demons with their own motives for him. A story of love, lust and growth inspired by “Molten Wings” and other works of Mikeytron. 13 parts Added Jul 2023 Updated 30 Sep 2023 12k views 4.7 stars (33 votes) 68k words (#42) •Hyper Cock•Hyper Muscle•Immobility•Muscle Growth•Muscle Worship•Gradual Change•Transformation•Hyper Tongue•Destruction/Violence•Blood•Nonconsensual change•Demons•Werewolves•Supernatural•Complete •M•M/M•M/M/M/...•M/M/M/...

His cock gets huge by Jack Hardwood Male model Pietro washes up on a remote island inhabited by a society of men where everyone wants their cock to be as big and fat as humanly possible. Pietro just wants to go home, but his almost constant boner is getting bigger and bigger, and he doesn’t know how much longer he’ll be able to walk. 8 parts Added Dec 2017 Updated 13 Apr 2018 50k views 4.7 stars (32 votes) 15k words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Increased Libido •M/M

Matched pairs by Jerkoffcentral Peter becomes infected, not just with growth, but with a need for more strength and size. 14 parts Added Oct 2013 Updated 22 Jun 2016 62k views 4.7 stars (32 votes) 42k words (#91) •Cock Growth•Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•First Time/Virgin•Incest•Brothers•Bisexual•Hetero Sex •M/M•M/M/F

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 Added Jun 2017 Updated 15 Sep 2017 37k views 4.7 stars (32 votes) 14k words •Cock Shrinking•Cockless•Huge Cock•Muscle/Strength•Butt Growth•Detachable•App•Dom/Sub•Body Swap

A few minor adjustments by Cris Kane Geeky freshman Ryan is given a camera with special selfie-editing options that Instagram hasn’t thought of yet. As Ryan adjusts to his modified body, he then applies the camera’s effects to his jerk of a roommate, leading to all sorts of complications and an unexpected encounter with his roommate’s bro buddy Shiloh. 4 parts Added Oct 2014 32k views 4.7 stars (31 votes) 20k words •Huge Cock•Straight to Gay•Muscle Growth•Muscle/Strength•Size Increase

Magic numbers by YellowJester When everything your roommate says starts coming true, math class can get a lot more fun. Added Apr 2022 11k views 4.7 stars (31 votes) 2,406 words •Cock Growth•Muscle Growth•Getting Handsomer•Getting Taller•Retcon•Suggestion •M/M•M/M/M

Body game by BRK In an experimental story based on changes generated randomly by a computer program, the already well built Marcus is invited to a warehouse where he and four others play a strange game that, turn by turn, makes their bodies randomly freakier and freakier. Added Aug 2014 33k views 4.7 stars (30 votes) 13k words •Cock Growth•Huge Cock•Extra digits•Multi-abs•Multicock•Multilimb•Replication•Muscle Growth•Muscle/Strength•Size Increase•Mouthcock•Selfcest•Complete •M/M

Double trouble by NBCK99 Caleb is really into how hot identical twins are. His roommate decides to help him out a little. Added May 2015 14k views 4.7 stars (30 votes) 4,088 words •Retcon•Incest•Twins •M/M

Dr. Engorgio by TheSizeKing A doctor known for growing his patients lets his fantasies run wild with a new client, Nick. 6 parts Added Aug 2019 Updated 7 Sep 2019 23k views 4.7 stars (30 votes) 11k words •Cock Growth•Huge Balls•Huge Cock•Self-suck•Hyper Cum•Muscle Growth•Muscle/Strength •M/M

Truth to tell by BRK There are way too many temptations involved when the things you say about people around you come true—especially when you fall in lust with the hot guy in the next dorm room. 3 parts Added Feb 2012 Updated 1 Jun 2018 34k views 4.7 stars (30 votes) 9,610 words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Suggestion•Complete

Enchanted growth by NBCK99 When Andrelle’s questing companions succeed in finding a magical dagger, he discovers just why the artifact is so desirable. 5 parts Added Apr 2015 Updated 27 Oct 2015 44k views 4.7 stars (29 votes) 18k words •Cock Growth•Huge Balls•Hyper Cock•Muscle Growth•Muscle/Strength•Size Increase•Fantasy Realm •M/M•M/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 Added Oct 2012 96k views 4.7 stars (29 votes) 29k words •Cock Growth•Huge Cock•Hyper Muscle•Hyper Strength•Muscle Growth•Muscle/Strength•Size Increase•Nanotech•Destruction/Violence•Infectious•Complete •t/t

Dad’s gift by John Y. For Jeff’s 18th birthday, his dad decides to give him something special and close to his heart—a donkey dick. Added Mar 2004 51k views 4.7 stars (28 votes) 4,994 words •Cock Growth•Huge Cock•Age Difference•Incest•Father/Son

Gettin’ merged by Jefftaur Roommates and friends Mark and Eric are told their dorm is too small for the both of them. Thankfully, they have a solution. Added Aug 2009 21k views 4.7 stars (27 votes) 3,207 words •Multicock•Multihead•Multiarm•Multileg•Multilimb•Multipec•Merging •M/M

The engineer by Galpha567 A captive in a hidden lab is made to experience wonderful augmentations to his body by a phallically-obsessed engineer. 2 parts Added Jan 2013 Updated 31 Dec 2013 27k views 4.7 stars (26 votes) 7,147 words •Nipcocks•Nipple Emissions•Multicock•Mouthcock•Restraints •M/M

Greg and Jesse by BRK Greg and Jesse are already pretty close. But the addition of a little premium weed combined with a video chat session makes them even closer. 3 parts Added Mar 2009 Updated 5 Jan 2018 32k views 4.7 stars (26 votes) 6,991 words •Cock Growth•Huge Cock•Multicock•Multihead•Multiarm•Multileg•Multilimb•Multipec•Replication•Stacking•Brothers•Selfcest•Merging•Cannabis •t/t•t/t/t

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. Added Aug 2022 14k views 4.7 stars (26 votes) 3,606 words •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

Bull’s gene by Opin Dean goes on a date with Henry, a huge professor, whose strength exceeds every expectation. 8 parts Added Aug 2020 Updated 15 Oct 2022 40k views 4.7 stars (25 votes) 12k words •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

The e-journal by hyperboi Tyler’s birthday is not going well: no one can come, not even his parents, and his big brother is being an obnoxious bully as usual. Plus he’s horny as heck. At least his best friend gave him a gift: an e-journal. He decides to write in it not about the way things are, but the way he wants things to be. Added Jul 2018 19k views 4.7 stars (25 votes) 3,597 words •Cock Growth•Huge Balls•Huge Cock•Multi-balls•Multicock•Muscle Growth•Muscle/Strength•Retcon•Incest•Brothers•Nonconsensual change

The perfect fit by TheSizeKing When someone can grow you to whatever size you want, make sure they know how big you want to be. Otherwise things can go a little overboard. 5 parts Added Jun 2020 Updated 22 Aug 2020 24k views 4.7 stars (25 votes) 14k words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Getting Taller•Gay Pride •M/M

Say cheese and grow by hyperboi When Greg and his friends take a picture of themselves using a creepy camera, the resulting image shows them wildly transformed in different ways. They just think it’s a weird glitch, until it slowly starts becoming true. 13 parts Added Nov 2013 41k views 4.7 stars (25 votes) 29k words •Cock Growth•Huge Cock•Self-suck•Muscle Growth•Muscle/Strength•Gradual Change•Incest•Brothers •t/t•t/t/t

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 Added Feb 2017 Updated 29 Oct 2022 217k views 4.6 stars (144 votes) 132k words (#9) •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

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 Added Apr 2013 Updated 8 Dec 2018 277k views 4.6 stars (106 votes) 130k words (#11) •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/...

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 Added Aug 2011 Updated 2 Nov 2011 308k views 4.6 stars (80 votes) 25k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Infectious •M/M•M/M/M

Magnetic magic by Squidy Josh discovers his new roommate, Jack, has a powerful effect on him—especially his cock. 6 parts Added Dec 2014 Updated 30 Sep 2016 46k views 4.6 stars (60 votes) 13k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength

Boyfriend destroys my cock by Steve McMoon Sometimes having a big cock isn’t nearly as important as your hot dominant boyfriend taking your size away from you. Added Feb 2020 19k views 4.6 stars (43 votes) 1,630 words •Cock Growth•Cock Shrinking•Dom/Sub

The new job by hyperboi Out-of-work engineer Jake takes a job at an isolated mansion, where he’s overpaid for just guarding a gate and letting through mysterious trucks. He and his coworkers are getting slowly bigger and hornier, too, and all this seems really great except for a certain nagging doubt—and a terrifying warning from the hugest of his fellow guards. 8 parts Added Aug 2014 38k views 4.6 stars (41 votes) 20k words •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Hyper Muscle•Muscle Growth•Muscle/Strength•Gradual Change•Size Increase•Incest•Brothers •M/M

The biggest dick by Ziel "For this month’s Patreon story, someone suggested I try a story about someone whose cock begins growing, but unlike in other stories, the dude’s elation slowly gives way to apprehension as his schlong exceeds the idyllic porn-star cock and slowly grows into a massive, mega-dong." Added Dec 2014 42k views 4.6 stars (40 votes) 5,550 words •Cock Growth•Hyper Cock•Muscle/Strength •M

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 Added Oct 2017 Updated 1 Jun 2019 35k views 4.6 stars (39 votes) 14k words •Cock Growth•Cock Shrinking•Huge Cock•Muscle Breast•Muscle Growth•Muscle/Strength•App•Dom/Sub •M/M•M/M

Frank’s gym by Writ Bro Alec finds out more about what it means to be one of Frank’s bitches—and having his growth under Frank’s control. 7 parts Added May 2014 Updated 6 Mar 2015 56k views 4.6 stars (38 votes) 22k words •Cock Growth•Huge Cock•Muscle Breast•Muscle Growth•Muscle/Strength•Dom/Sub•Sex-Slave•Dildos/Toys •M/M•M/M/M

Not just imagination by DarkDjin Jampson’s overactive imagination starts to grow his cop dad and his friends...and somehow not only does it become real, but the men are pretty into it. 2 parts Added Jun 2014 Updated 5 Jul 2014 41k views 4.6 stars (38 votes) 11k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Suggestion•Age Difference•Incest•Father/Son

Vice (Sometimes drugs offer more than a high) by Tereshky Jack was a drug kingpin of sorts. Like any potent drug, people craved it, they came to him, offered him their life’s treasures and he gave them their fix. In a world where usually only the strongest survive and only the smartest staid on top, he was doing quite well for himself and living an easy life. There were no rival drug lords because what he had to offer nobody else could give. His drug came from within. 5 parts Added Jun 2018 Updated 23 Nov 2019 44k views 4.6 stars (37 votes) 12k words •Cock Growth•Huge Balls•Hyper Cock•Self-suck•Cum inflation•Cum Milking•Hyper Cum•Addiction•Immobility•Muscle Growth•Muscle/Strength•Belly Growth•Size Increase•First Time/Virgin•Nonconsensual change •M/M

A man of growing proportions by crazywolf82 Jacob’s cock starts to grow just as he meets a sweet guy named Kyle who seems very interested in him. 5 parts Added Oct 2014 53k views 4.6 stars (36 votes) 9,164 words •Cock Growth•Huge Balls•Hyper Cock•Cum inflation•Hyper Cum•Stretchy

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 Added Jun 2016 50k views 4.6 stars (36 votes) 39k words (#97) •Cock Growth•Huge Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Public Nudity•Plausible Size Difference•Size Increase •M/M

Bound together by NBCK99 When you have the ability to "push" people to be bigger and hotter, and not a lot of self-control, a really cute repairman can be a challenge—especially if things don’t go quite the way they’re supposed to. Added Jan 2016 15k views 4.6 stars (35 votes) 4,818 words •Multicock•Multiarm•Multilimb•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase •M/M

Threefer by BRK His lover doesn’t seem to mind, but Quinn decides to try out some pills that are supposed to grow his dick anyway while Diego’s away. The fact that they work is less surprising than the two unexpected side-effects that soon develop. 4 parts Added Apr 2019 Updated 30 Jan 2021 17k views 4.6 stars (33 votes) 11k words •Always Hard•Cock Growth•Huge Cock•Nipcocks•Hyper Cum•Nipple Emissions•Complete •M/M•M/M/M

Fantastic island by FanTCMan Gene’s island vacation takes a sudden twist when he meets a handsome stranger and has a drink with him, only to wake up blearily to encounter the man’s muscle giant fuck toy... and his own body is feeling very strange... Added Jul 2014 32k views 4.6 stars (32 votes) 5,249 words •Cock Growth•Huge Cock•Hyper Cock•Self-suck•Getting Dumber•Muscle Growth•Muscle/Strength•Nonconsensual change

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 Added Jun 2017 Updated 22 Dec 2017 118k views 4.6 stars (30 votes) 42k words (#90) •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•Getting Hairy•Getting Fatter•Inflation•Nanotech•Destruction/Violence•Nonconsensual change•Nonconsensual sex•Absorption •M/M

Demon brand jeans by alwaysmyway Shopping for creepy Halloween costumes at the last minute is probably not a good idea. Added Aug 2012 30k views 4.6 stars (30 votes) 6,033 words •Wings•Muscle Growth•Muscle/Strength•Incest•Brothers•Halloween•Flying •M/M

The gene gene by RdyRoger When other guys’ spunk transforms you into a totally different, much hotter guy, you learn there are lots of possibilities for fun—if you’re careful. 6 parts Added Oct 2011 64k views 4.6 stars (30 votes) 32k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Muscle Worship•Getting Handsomer•Size Increase•Race/Ethnicity Change

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 Added Oct 2022 Updated 10 Dec 2022 33k views 4.6 stars (30 votes) 61k words (#48) •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

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 Added May 2013 59k views 4.6 stars (29 votes) 15k words •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/...

Hyper active imagination by Ziel James’s attention wanders sometimes, usually in the direction of making the person he’s staring at not just hotter but impossibly muscled and unbelievably hyper-donged. It’s so vivid, it’s almost like it’s real... 5 parts Added Oct 2013 Updated 26 Mar 2022 60k views 4.6 stars (29 votes) 21k words •Cock Growth•Hyper Cock•Muscle Growth•Muscle/Strength•Public Nudity•Getting Taller•Giants•Size Increase•Christmas•Valentine’s Day•Complete •M/M

Lumberjacked by Krisiar Trapped by a snowstorm at an underheated family cabin in northern Manitoba, Henry and Will stumble across a hidden sauna in the woods while out looking for wood. It turns out someone out there wants to help out guys like Henry and Will who could do with a little size improvement. 4 parts Added Aug 2011 Updated 6 Oct 2011 96k views 4.6 stars (29 votes) 12k words •Cock Growth•Huge Cock•Hyper Cock•Prehensile Cock•Self-suck•Nipple Emissions•Multi-abs•Addiction•Muscle Growth•Muscle/Strength•Getting Handsomer•Getting Hairy •M/M

Naked morph for ps2 by Male Enhancer Three brothers play a video game that has a direct effect on the people playing it. 4 parts Added Jun 2013 34k views 4.6 stars (29 votes) 3,180 words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase•Incest•Brothers

Brad’s big change by FanTCMan Brad, secretly yearning for a muscle body, is nudged into action by a posting on a bulletin board. 5 parts Added Dec 2002 73k views 4.6 stars (28 votes) 17k words •Muscle Growth•Muscle/Strength•Getting Handsomer •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. 14 parts Added Dec 2013 Updated 31 Dec 2022 99k views 4.6 stars (27 votes) 74k words (#37) •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

The Black Knights by Meddler Incs Once you join the infamous college team known as the Black Knights, there are only three things that matter: lifting, fucking, and football. 4 parts Added Aug 2016 Updated 19 May 2017 23k views 4.6 stars (27 votes) 6,479 words •Muscle Growth•Muscle/Strength•Symbiotes •M/M•M/M/M/...

A father and son’s inseparable bond by Salem Noctua Ezekiel finds a way to make his fraught relationship with his dad, Lucas, a little more intimate. Added Jan 2023 4,832 views 4.6 stars (27 votes) 12k words •Human to Cock•Incest•Father/Son•Nonconsensual change•Merging •M/M

Figurines by RdyRoger A pair of bracelets let the wearer gain the proportions and attributes of any figurine you pick up. Once you understand that, you start to realize there are some very well-built figurines out there... 4 parts Added Feb 2009 34k views 4.6 stars (27 votes) 9,284 words •Cock Growth•Huge Balls•Huge Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Increased Libido•Getting Handsomer•Size Decrease•Size Increase•Race/Ethnicity Change•Getting Hairy•Tongue Growth•Dildos/Toys

Sheepish Sean by johnnyacolin Shy college freshman Sean gets a growth spurt that’s alarming enough to pay a visit to the doctor. 3 parts Added Nov 2021 Updated 9 Sep 2023 12k views 4.6 stars (27 votes) 4,921 words •Cock Growth•Huge Cock•Father/Son •M

Max and Chris by Drillur Two very hung brothers get tired of solo sex. Added Jul 2014 20k views 4.6 stars (26 votes) 1,502 words •Huge Cock•Hyper Cum•Incest•Brothers

Bad suggestion by pkak2k12 I’ve learned what I say about others happens. However, I’m still figuring out how to use it, and my best friend and little brother kind of ended up being test subjects for it. Added Sep 2022 12k views 4.6 stars (25 votes) 1,619 words •Cock Growth•Muscle Growth•Muscle/Strength•Getting Taller•Plausible Size Difference•Size Increase•Retcon•Suggestion•Incest•Brothers •M/M•M/t

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… Added Dec 2019 21k views 4.6 stars (25 votes) 1,711 words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Straight to Gay•Nonconsensual change•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 Added Feb 2014 Updated 3 Jun 2023 73k views 4.5 stars (53 votes) 20k words •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

Skin tight by Dream Big Mark has big brains, but a big body? Not so much. So he decides to bend his gray matter toward a high-tech A.I.-assisted body suit that will help him achieve the kind of body he dreams about. 23 parts Added Apr 2019 Updated 3 Oct 2020 49k views 4.5 stars (42 votes) 38k words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Self-suck•Muscle Growth•Muscle/Strength•Gradual Change•Getting Taller•Plausible Size Difference•Size Increase•Hyper Tongue•A.I.-Controlled Change•Nanotech•Nonconsensual change•Hyper Pheromones •M/M

The elevator ride by BRK Another long, boring elevator ride… and you’ve resisted messing with your coworkers for so long. 3 parts Added Feb 2020 Updated 12 Mar 2022 16k views 4.5 stars (34 votes) 5,689 words •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

The gifted child by JayPat Young psychologist Justin Conroy poses as a valet to profile Evan, as genius prodigy whom his father things might be a sociopath. Evan has his own plans for Justin—and for some illegal genome experiments he’s uncovered. 7 parts Added Oct 2012 52k views 4.5 stars (32 votes) 45k words (#79) •Huge Cock•Hyper Strength•Muscle Growth•Muscle/Strength•Sex-Slave

Dylan & Josh by MaxMorphs Tired of settling or doing without, Josh is determined to find a boyfriend with a more than ample package. Dylan meets his requirements… and then some. 16 parts Added Apr 2019 Updated 13 Jul 2019 30k views 4.5 stars (31 votes) 18k words •Cock Growth•Cockfucking•Huge Balls•Huge Cock•Hyper Cock•Cum inflation•Hyper Cum•Gradual Change•Dildos/Toys•Christmas•April Fool’s Day •M/M

Werewolf High by BRK The star of a teen werewolf show has a nagging sense that something weird is happening to the show’s extremely muscular, hung, and horny cast and crew, but he can’t quite put his finger on what it is. 3 parts Added Jul 2014 Updated 31 Dec 2015 37k views 4.5 stars (28 votes) 13k words •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Extra digits•Multicock•Multiarm•Multilimb•Replication•Muscle Growth•Muscle/Strength•Size Increase•Incest•Twins•Triplets•Selfcest•Werewolves •M/M•M/M/M

Away game by spacevlad College freshman Adam is the smallest guy on the football team. On an away game road trip, he gets paired up to room with Wyatt, the biggest offensive lineman on the team. Adam tries to control himself as they are forced to share a bed, but Wyatt’s massive body is hard to resist. 2 parts Added Dec 2017 31k views 4.5 stars (26 votes) 6,307 words •Muscle Growth•Muscle Gut•Muscle/Strength•Plausible Size Difference•Size Increase

Brandon’s bro by FanTCMan Brandon initiates his brother onto a secret society of guys who are being made more and more muscular, hung, and sexy. 4 parts Added Jan 2017 27k views 4.5 stars (26 votes) 8,692 words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Getting Hairy•Incest•Brothers

God mode by BRK Usually in video games, “god mode” is a way for programmers to test features and bug fixes without having to go the long way around. Sometimes, though, it’s exactly what it says on the tin. 2 parts Added Apr 2021 Updated 17 Sep 2022 13k views 4.5 stars (26 votes) 5,430 words •Cock Growth•Extra digits•Multicock•Muscle Growth•Pointy Ears•Getting Taller•App•Retcon •M/M

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 Added Jul 2002 Updated 19 Jun 2021 158k views 4.5 stars (25 votes) 223k words (#3) •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

5.0 Stars 197

Dick note by Thorn Waking up from an odd dream, Forest awakens to find something is in his backpack. 6 parts Added Jan 2021 Updated 5 Jun 2021 23k views 5.0 stars (24 votes) 31k words •Cock Growth•Huge Cock •M/M

The G by Braun1 Working at the gym in a small town you get to admire the local muscle on the sly. But when someone comes along who’s muscled to the point of being inhuman, all bets are off. 6 parts Added Mar 2013 33k views 5.0 stars (23 votes) 43k words (#84) •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Hypnosis •M/M•M/M/M

Max’s morning wood by TreborNawoc Max makes a bet with his equally gifted boytaur brother about the size of his morning wood—only it’s a bit tougher to estimate when the wood in question is meansured in feet rather than inches. Added Apr 2023 2,630 views 5.0 stars (23 votes) 1,444 words •Huge Cock•Hyper Cock•Extra Mouths•Multicock•Boytaur•Four Legs•Multiarm•Multileg•Multilimb•Incest•Brothers •M/M

Side effects by TheSizeKing Stephen went to the doctor for typical flu symptoms, but the medication he was given began to give him some unexpected side effects. 2 parts Added Sep 2020 Updated 3 Oct 2020 19k views 5.0 stars (22 votes) 5,424 words •Cock Growth•Huge Cock•Hyper Cock•Hyper Cum•Muscle Growth•Muscle/Strength •M/M

Toil & trouble by BRK After a series of threatening texts, P.I. Jordan Coffey wakes up different—and not alone. 3 parts Added Oct 2016 Updated 3 Nov 2018 11k views 5.0 stars (22 votes) 17k words •Multiarm•Multilimb•Replication•Selfcest•Witch/Warlock/Wizard •M/M•M/M/M

Take me, change me by NBCK99 When John Truman finally gets intimate with Scott, his hot teammate, John’s body suddenly changes into Scott’s deepest fantasy. Added May 2016 22k views 5.0 stars (21 votes) 4,033 words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•First Time/Virgin•Dom/Sub •t/t

The forge by mf81 Paul meets Derrick, mysterious blacksmith that invites him up to his place up in the woods called The Forge. What he finds there will change life in ways he couldn’t imagine. 3 parts Added Oct 2018 13k views 5.0 stars (20 votes) 7,122 words •Cock Growth•Huge Cock•Hyper Cum•Muscle Growth•Muscle/Strength •M/M

Kennebunkport by JuicyJ Two childhood friends meet up for their yearly beach trip together, but this summer will be unlike any of the others they’ve spent together.  2 parts Added Jul 2023 Updated 5 Aug 2023 3,471 views 5.0 stars (20 votes) 11k words •Huge Cock •M•M/M

The sleepover by Mad Dog and Mr. X Muscle-bosotted hIgh school brainiac Ethan has been quietly slipping his best friend and secret crush Joshua his startlingly effective growth formula, but things ratchet up a notch after Joshua agrees to spend a weekend at Ethan’s. Added May 2023 8,155 views 5.0 stars (19 votes) 9,193 words •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Muscle Growth•Gradual Change •t/t

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 Added Aug 2020 Updated 12 Dec 2020 35k views 5.0 stars (18 votes) 16k words •Muscle Growth•Belly Growth•Getting Taller•Giants•Plausible Size Difference•Size Increase•Getting Fatter

Definition of a grower by Luke B. Kyle is pretty sure people don’t understand the magnitude of what he means when he says he’s “a grower”. 2 parts Added Apr 2013 27k views 5.0 stars (18 votes) 4,221 words •Cock Growth•Huge Cock

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 Added Dec 2012 Updated 3 Feb 2017 62k views 5.0 stars (18 votes) 11k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Plausible Size Difference•Size Increase •M/M

What a dear deer boy by Thatbadwriter Eric’s undersized brother Jayden finally hits his growth spurt—then keeps hitting it. 5 parts Added Feb 2021 Updated 13 Mar 2021 24k views 5.0 stars (18 votes) 12k words •Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Hyper Cum•Butt Growth•Giants•Plausible Size Difference•Size Increase•Human to Animal/Anthro•First Time/Virgin•Incest•Brothers•Hyper Pheromones•Anthro/Furry •M/M

You wanted more by Zine You thought you could stop. But you couldn’t, could you? Added Jan 2023 4,700 views 5.0 stars (17 votes) 931 words •Hyper Muscle•Immobility•Muscle Growth •M/M

Beta Logan and his big brother by Eric Aaldersen Logan has difficulty controlling himself as his older brother Brian becomes a bigger and bigger stud. Added Jun 2020 23k views 5.0 stars (16 votes) 6,499 words •Cock Growth•Cut to Uncut•Huge Balls•Huge Cock•Hyper Cum•Hyper Strength•Muscle Growth•Muscle/Strength•Gradual Change•Incest•Brothers•Hyper Pheromones•Supernatural •t/t

Me two by BRK Chris has some time off from his celluloid heroics as an A-list movie star and is going through fan mail when he finds a joke twin-making machine. Amused, he tries it out, with… unexpected results. Added Jan 2021 4,872 views 5.0 stars (16 votes) 2,725 words •Multicock•Multihead•Multileg•Multilimb•Three Legs•Multipec•Replication•Incest•Twins•Selfcest•Merging•Complete •M/M

The cabin by HugeEndowments A story about two friends and some excessive sizes. 2 parts Added Mar 2021 10k views 5.0 stars (15 votes) 9,239 words •Huge Balls•Huge Cock•Hyper Cock•Self-suck•Hyper Cum•Muscle Worship

Coming of age by Also Known As Jerry’s teenaged nephew comes to visit him in San Francisco, and turns out to be very huge, very beautiful and very uninhibited. 4 parts Added Feb 2019 25k views 5.0 stars (15 votes) 13k words •Cock Growth•Huge Balls•Huge Cock•Self-suck•Hyper Cum•Muscle Growth•Muscle/Strength•Getting Taller•Size Increase•Hairless•Incest

Finding Mark by nightwolf285 Turning 16 means lots of changes for Mark. The one he’s not expecting is the ability to change his own body. 11 parts Added Oct 2010 44k views 5.0 stars (15 votes) 29k words •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase •t•t/t

Meta massage therapy by M.M.69 A mysterious new massage parlor opened in town, and brothers Jared and Jason have VIP passes. What makes this place so special? 3 parts Added Nov 2021 Updated 1 Jan 2022 13k views 5.0 stars (15 votes) 15k words •Always Hard•Cock Growth•Huge Balls•Huge Cock•Hyper Cock•Multicock•Multihead•Boytaur•Four Legs•Multiarm•Multileg•Multilimb•Multipec•Multitorso•Replication•Straight to Gay•Hyper Muscle•Hyper Strength•Muscle Growth•Butt Growth•Getting Handsomer•Getting Taller•Plausible Size Difference•Size Increase•Retcon•Suggestion•Age Difference•Incest•Brothers•Father/Son•Selfcest•Dom/Sub•Pagan gods •M/M

Trade by MaxMorphs Discovering the ability to trade a part of your body for part of another naturally leads to experimentation with inches of cock, and with just how far you can transform someone who really wants it. 3 parts Added Feb 2017 19k views 5.0 stars (15 votes) 3,360 words •Cock Growth•Huge Cock•Hyper Cock •M/M

Untangled by screamingmoist A young man wanders into the wrong bar and into the right life. Added Jan 2022 8,123 views 5.0 stars (15 votes) 3,244 words •Cock Growth•Huge Cock•Straight to Gay•Muscle Growth•Transformation•Getting Hairy •M/M

Cody and Todd by klj Little green pills lead to roommate fun. Added Jun 2005 20k views 5.0 stars (14 votes) 2,654 words •Cock Growth•Huge Cock•Cum inflation•Straight to Gay•Increased Libido •M/M

Hunky stripper Derek by Amouri A hot and horny male stripper entertains and dances at a private party fully nude and hard. Added Aug 2021 4,566 views 5.0 stars (14 votes) 774 words •Huge Cock•Public Orgasm•Public Nudity

Incubus encounter by Demonized The sauna in the rental house you have for the weekend isn’t as private as you thought... Added Aug 2023 3,235 views 5.0 stars (14 votes) 3,607 words •Cock Growth•Ball Growth•Muscle Growth•Butt Growth•Transformation•Getting Taller•Demons•Incubus/Succubus•Supernatural•Complete •M/M

Out of control by Sammas6 Toby and Matt are young men working on an experimental plant-growth formula out of Tony’s garage. It doesn’t work on the plants, but Matt finds another use for it. 5 parts Added May 2021 12k views 5.0 stars (14 votes) 8,975 words •Cock Growth•Huge Balls•Ball Growth•Huge Cock•Hyper Cock

Pholus reborn by Absman420 A man inherits an elixir that transforms him into one of the old gods. Added Oct 2020 8,539 views 5.0 stars (14 votes) 8,534 words •Cock Growth•Huge Cock•Muscle Growth•Getting Taller•Size Increase•Pagan gods•Cannabis •M/M

Triple trouble by Tommyhawk An accident turns lab assistant Val into Val-1, Val-2, and Val-3. Added Jan 2006 9,296 views 5.0 stars (14 votes) 4,868 words •Replication•Selfcest •M/M/M

The blue daiquiri by BRK Another artifact of the universe makes an appearance, this time at a loft party to celebrate the pilot Henry scripted, Ice City, going to series. If only Henry were having as much success figuring out his feelings for his sweet but ordinary-looking roommate, Gavin. Added Oct 2017 11k views 5.0 stars (13 votes) 9,647 words •Cock Growth•Huge Cock•Multicock•Multihead•Multiarm•Multilimb•Muscle Growth•Muscle/Strength•Getting Handsomer•Getting Taller•Suggestion•Complete •M/M

The box by BRK Steve gets a box of clothes from his mysterious and beautiful brother, Peter, and it turns out the clothes have an amazing effect on his already unusual body. 8 parts Added Dec 2002 Updated 7 Sep 2019 29k views 5.0 stars (13 votes) 30k words •Cock Growth•Huge Cock•Public Orgasm•Extra digits•Multicock•Multihead•Four Legs•Multiarm•Multileg•Multilimb•Replication•Muscle Growth•Stretchy•Getting Handsomer•Getting Taller•First Time/Virgin•Incest•Brothers•Selfcest•Witch/Warlock/Wizard •M/M•M/M/M•M/M/M/...

Canis drainem edit by Ziel Pals Cecil and Harvey have a plan to cut the resident bully down to size, but things quickly spiral out of control. 14 parts Added Jun 2020 Updated 29 Jul 2023 17k views 5.0 stars (13 votes) 35k words •Gradual Change•Size Decrease•Nonconsensual change•Complete •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? Added Jul 2022 17k views 5.0 stars (13 votes) 1,596 words •Cock Growth•Huge Cock•Muscle Growth•Muscle Worship•Getting Taller•Plausible Size Difference•Size Increase•Incest•Brothers •M/M

Remodel by BRK On a modeling shoot in Brazil, Reese finds himself uncovering his body’s hidden potential—which apparently includes some unexpected extras. 2 parts Added Mar 2020 Updated 19 Sep 2020 5,993 views 5.0 stars (13 votes) 5,049 words •Multicock•Multiarm•Multileg•Multilimb•Three Legs•Multipec•Stacking •M/M•M/M/M

Secret Santa by BRK Joe’s crew at his new firehouse are destined to become very important to him, but the extent to which he’s more and more heart-thuddingly attracted to his handsome, well-muscled workmates worries him more than a little. 3 parts Added Dec 2016 16k views 5.0 stars (13 votes) 15k words •Cock Growth•Huge Cock•Multi-abs•Multiarm•Multileg•Multilimb•Three Legs•Replication•Muscle Growth•Muscle/Strength•Always Shirtless•Incest•Brothers•Selfcest•Christmas•Complete •M/M•M/M/M/...

Andro-Gro anonymous by LucaWLee Fresh out of cryosleep in the post-apocalyptic Southwest, Phoenix journeys with a hulking Kassian and a wolfish Fynn in search of an irresistible growth-inducing drug. 3 parts Added Jan 2023 4,594 views 5.0 stars (12 votes) 6,673 words •Cock Growth•Huge Cock•Hyper Cock•Cum Milking•Hyper Cum•Hyper Muscle•Muscle Growth•Muscle/Strength•Set in the Future •M/M

The body spray by Coalth Bodybuilder Kevin, needing a little armpit spray, spots a strange brand of deodorant in the gym vending machine and decides to give it a try. 6 parts Added Mar 2013 41k views 5.0 stars (12 votes) 5,880 words •Huge Cock•Muscle Growth•Muscle/Strength•Public Nudity•Man Scent•Gradual Change•Human to Animal/Anthro•Getting Hairy•Anthro/Furry •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. Added May 2023 5,710 views 5.0 stars (12 votes) 3,858 words •Huge Balls•Huge Cock•Man Scent•Belly Growth•Inflation•First Time/Virgin•Father/Son •M/M

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? Added Jul 2023 5,785 views 5.0 stars (12 votes) 1,004 words •Cock Growth•Cock Theft•Hyper Cock•Hyper Cum•Nonconsensual change•Stories with Images •M

Graduation party by Jefftaur Steve and the rest of his friends have a huge graduation dance party. It’s already a blast even before the “novelty cup challenge” starts the guys chugging some special boytaur-making beer. 3 parts Added Mar 2009 15k views 5.0 stars (12 votes)