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Transformation

Stories that feature guys that transform in ways that are not easy to categorize (this is sort of a catch-all). In particular, guys that change into something other than human or augmented males end up here. See also Goo People.

Kinds of “Transformation” stories include:

    Other tags that also fall under the category “Other Physical Changes”: Age Progression, Age Regression, Belly Growth, Body Suit, Breast Expansion, Detachable, Foot Growth, Gender Swap, Getting Fatter, Getting Hairy, Gradual Change, Hairless, Human to Animal, Human to Body Part, Human to Inanimate, Inflation, Male Pregnancy, Race Transformation, Stretchy.

    Stories found: 141.

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

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    Complete story list for Transformation:

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    • Abyssus Abbey by Pen Darke(17 parts)Demons Horror Incub XCock Grow Supn Tf  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.  Added Feb 2020  •  Updated May 2020  •  124.8K words
      6,991 views
    • The accidental wizard by nolanspice(2 parts)AgeDown MGrow Musc PSD Rep Grow Tf    Added Jan 2006  •  2.9K words
      16,598 views
    • Acclimating by Dream Big(22 parts)CGrow Demons Fant Cock Musc PSD Shift Tf  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.  Added Mar 2020  •  Updated Sep 2020  •  21.6K words
      7,140 views
    • The adventures of Rex by Richard Jasper(6 parts)CGrow Demons Fant Cock MGrow Musc Ogres Race Grow Tf Series  MLB Player Rex Chastain is dragooned into the service of a wizard but a magical transformation goes somewhat awry.  Added Feb 2020  •  3.9K words
      3,992 views
    • Airport muscle by Richard Jasper(5 parts)CGrow Cock MGrow Musc Shift Tf  When you have a really long layover, having a sleeping cube comes in handy!  Added Jan 2020  •  Updated Feb 2020  •  5.9K words
      4,877 views
    • All good gifts by Sean Innicioni  Herm Shr Tf    Added May 2011  •  1.4K words
      16,488 views
    • Alpha by CharitysSongbird  Fur CGrow Dom Taller Balls Cock HyCock MGrow Musc Self Grow Tf Were  Used to being smaller than his office mates, especially his crush Tavy, Ritzy is stunned when he suddenly starts getting bigger and furrier, even as the impulse to dominate seeps into his personality.  Added Aug 2018  •  14.3K words
      24,346 views
    • The Alpha by Ziel  Fur Hair Cock 2Anim MGrow Musc Nonc Tf  Harrison’s chance encounter with the creature that has been stalking the campus changes him in ways he’d never thought possible.  Added Dec 2017  •  4.1K words
      14,996 views
    • Amethyst horizon by will88nh(3 parts)Tf    Added Aug 2005  •  6.3K words
      8,930 views
    • Amphitriton by Jan L  Lizard Merm XAbs Tf    Added Sep 2004  •  3.9K words
      13,101 views
    • Anomalous Materials Research Facility 3‑DL by Mad Dog and Gurak(6 parts)Fur Cent CGrow Demons Cock HyCock Mpreg XCock XHead XLimb Orcs Grow Tf  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.  Added Sep 2019  •  Updated Mar 2020  •  32.5K words
      12,122 views
    • Anything to grow by Big Bull Trainer  Dumb Immob MGrow Musc Grow Tf  There are some with an unquenchable desire to not only grow, but to grow to unnaturally large proportions, and will go to any lengths to do it. This is a story of just such a person.  Added Aug 2016  •  7.8K words
      31,036 views
    • The Arsenal of Secrets by BRK(10 parts)CGrow Fant Taller Cock XAbs XArm XLimb MGrow Grow Tf Series  Griffin, tired of being smaller than his farm-brute brothers, stumbles backwards into a way to make himself more like what he wants to be: big and strong enough to catch the eye of a beautiful, bashful, broad-shouldered apprentice blacksmith named Wass.  Added Aug 2020  •  25.8K words
      2,590 views
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    • The berry by rm20  Tf    Added Apr 2006  •  1.1K words
      9,053 views
    • Best body modification ever by Oneleg Smith  CGrow Cock BHole Rubber Tf  Mike meets an unconventional surgeon who specializes in improving your body and making sex better in unexpected ways.  Added Mar 2019  •  2.0K words
      8,109 views
    • Big cat by Growlboys  Addict Fur CGrow Viol Cock Tf  There’s a special substance on the market that’s driving people wild. In need of a fix after ten days without, Sam is told of a brothel where he get it. There he finds Doug, a werecat who’s not having a great life right now.  Added Jul 2019  •  3.1K words
      2,902 views
    • Blessed by the moon by Saaruu  Fur HyCock Cum MGrow Grow Tf Were  Ritzy gets back from work, exhausted. He gazes at the moon, which somehow feels… different from usual. His roommate comes back home and they both enjoy a nice adult film when the werewolf in Ritzy decides to go wild. Really wild. And big.  Added Sep 2018  •  3.7K words
      9,901 views
    • Body love by Josh Dugan  Tf  An effort to remember the dawn of a utopian transformation.  Added May 2002  •  1.0K words
      11,021 views
    • Bodymorphchat by BRK  Dialog Btaur XAbs XArm XCock XLeg XLimb Rep Str Tf  Conversations in this chat room are just like any other, with one exception: your screen name eventually becomes literally true.  Added Nov 2004  •  1.9K words
      18,692 views
    • The Book of Ra’malek by Joshua(20 parts)Fly Horror MGrow Supn Tf  The Book of Ra’malek tells the story of the founding of a sacred Brotherhood by the warrior king and mystic, Ra’malek. The book is also the sacred text of this Brotherhood, an elite and little-known group of warrior-mystic men. They herald from a time when men had many husbands and wives. Sex is woven into the tapestry of their rites. Is this just another erotic fiction? Or might you, dear reader, be about to embark upon a life changing journey and find yourself amongst the ranks of this ancient organisation, still shrouded in mystery?  Added May 2020  •  3.9K words
      502 views
    • Bottoms up by Cockatrice  2BodyPart Tf  He never thought of himself as a butt guy, but when he heard about this new rejuvenation procedure, well, he got to know the new him.  Added Aug 2020  •  5.9K words
      954 views
    • The Bridge by Stumpjumper  AI CGrow Hair Cock Scent MGrow Musc 2Gay Tf  A safety technician is exposed to an artificial intelligence that rebuilds him and his best friend in ways they can't imagine. A decade later, the repercussions are still unfolding.  Added Jun 2019  •  5.4K words
      7,047 views
    • Bull’s strength by muscl4life(28 parts)AgeDiff Hard Beast CGrow Viol Dad Fly Taller Balls Cock HyCock Infect XAbs XCock MGrow Musc PSD Grow Tf  On a quiet farm far from anywhere, an orphan named Joshua grows up so huge and strong that he’s bullied for being a freak. His aunt and uncle raise him with love and teach him to accept who he is, but Joshua yearns to be among men who don’t just accept his giant body, but love and admire his amazing size and power.  Added Jul 2018  •  Updated Oct 2018  •  88.4K words
      47,464 views
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    • Hard body by Also Known As(14 parts)CGrow Dom Balls Cock MGrow Musc Grow Tf  Uncannily attractive and hunky teenager John is sent to the latest in a string of health professionals over his unusual condition: he’s always horny, and it affects his body in a very unusual and highly provocative manner.  Added Oct 2016  •  Updated Oct 2019  •  75.3K words
      58,463 views
    • Hard luck by Eriknl77  Inan Musc Tf  A robbery goes horribly wrong with one man ending up in a permanent position at a museum.  Added Aug 2018  •  2.4K words
      3,866 views
    • Hey, buddy by Dream Big(15 parts)CGrow Giant Grad Cock MGrow Musc PSD Self Grow Tf  Ben’s high school crush, Charlie, resurfaces in his life after a mysterious incident at sea left him with a strange tattoo and a propensity for slow, inexplicable growth.  Added Oct 2019  •  Updated Aug 2020  •  15.5K words
      13,694 views
    • High quality replacement parts (free with trade‑in) by Keyed  Swap CGrow MGrow Musc Tf  Have you always wanted, say, a smaller nose? Somewhere, if you're lucky, in some other world, there might be a version of you who has one, or who has gotten a nose-job. If so, a swapper can help you out. Watch one help an unlucky man in a big way.  Added Jan 2018  •  3.7K words
      6,632 views
    • Hollyville by Tereshky(9 parts)CGrow Horror Balls Cock Cum XAbs XArm XLimb XPec MGrow Musc Rep Grow Stack Tent Tf Wings  The sleepy town of Hollyville, Alabama finds that strange things are happening to some of its people. It’s one man’s job to find out, but is he prepared for the mystery, suspense, and life-altering changes to come? Are you?  Added Nov 2019  •  Updated Feb 2020  •  44.0K words
      12,416 views
    • Hulk hunter by JayPat(2 parts)CGrow Viol Giant Cock HyCock Infect XAbs MGrow Musc Nonc Grow Tf Series  Hunter has dedicated his life to tracking and neutralizing the hundreds of huge-growing hulks that have been terrorizing small towns for twenty years now, and he’s damn good at what he does. But when he gets to his latest sighting, he finds things aren’t going the way they usually do.  Added Sep 2018  •  11.1K words
      10,629 views
    • HUSH by The Gecko Rose(4 parts)CGrow Det Goo HyCock HyTongue Merg XBalls Self Str Tf  A young man, an Acolyte of cHurch of Universal Scientific Hedonism (HUSH), finally becomes a full Brother, and learns all the secrets of the Brotherhood. Including all their special transforming abilities...  Added Dec 2018  •  9.8K words
      4,935 views
    • Hypno muscle: jock dreams by Douglas Benjamin  Dumb Taller Inan HMusc Hypno Scent Mind MGrow MTheft Musc Orcs Shr Grow Sugg Tf  Toby and Liam have picked up a hypnotic audio tape that promises to grow their muscles. When they fall asleep to the hypnotic induction, they have a dream that seems all too real: Suddenly, they have to power to transform each other into big-muscled meatheads, flexing and posing for each other and talking like dumb jocks. Even more transformation is possible, but there is a catch.  Added Jul 2019  •  4.3K words
      7,490 views
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    • If only by BRK  Cock XCock Rep Sugg Tf  Steve hasn’t noticed yet how the world shifts a little every time he says "if only”. That’s okay.  Added Mar 2006  •  2.6K words
      14,208 views
    • The Interview by MutaBear  Cock BACock HyCock Nonc Bond Tf  A college-aged jock decides to go for an interview that offers high pay with no real qualifications. What's the worst that could happen?  Added Jan 2020  •  Updated Feb 2020  •  2.8K words
      4,019 views
    • It’s magic by TylerGermany(2 parts)Infect Tf    Added Apr 2014  •  2.1K words
      9,662 views
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    • Jacob and Dameian by Honkycat(2 parts)Str Tf    Added May 2002  •  4.4K words
      9,124 views
    • Johnny Pecs by BRK(2 parts)CGrow Cock Musc Tf  Unexpectedly inheriting part of an island estate off the coast of Maine, Kent travels there to assess his options. On arriving in Glen Rush, he meets the young caretaker—a handsome stunner who’s acquired, with some justification, the nickname “Johnny Pecs”.  Added Sep 2017  •  7.2K words
      9,935 views
    • Josh and Yacob by Joshua  Absorb CGrow Supn Tf  A young man falls in love with a jinn.  Added Aug 2020  •  3.2K words
      1,279 views
    • Just a little bigger by Dream Big(15 parts)Bi B/E CGrow Taller Grad Het Cock MGrow Musc Self Tf  Drew has two problems: he’s got a crush on his two best friends, Vic and Sarah, and he’s self-conscious about being short and skinny. He’s not prepared for the changes that develop in both departments on their fateful post-graduation trip to New York City.  Added Dec 2019  •  Updated Mar 2020  •  31.4K words
      15,712 views
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    • Knot your average wolf by Bryan  Hum Tf Were  Two friends take a shortcut home but are interrupted by a ferocious beast. Brandon is face to face with the wolf and has to take something home with him that will change his life forever.  Added Nov 2019  •  2.1K words
      2,914 views
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    • A lamppost on Wisteria Lane by Wersgor  Tf    Added Jun 2005  •  2.3K words
      7,853 views
    • Landfall by BRK(3 parts)Xmas CGrow Dig Taller Cock XArm XCock XLimb MGrow Musc Tf  When the mighty starship Q.S.S. Knox is destroyed falling through a suddenly created wormhole, its portable A.I. finds himself marooned on an alien world with the one man he can't stop thinking about.  Added Dec 2019  •  11.8K words
      2,695 views
    • Leg transformation by Andrew James  Amputation Cock Tf  A horny guy with a prosthetic leg wonders what it would be like if his stump were turned into a huge cock. Much to his shock and delight, he gets to find out.  Added Jan 2018  •  1.3K words
      3,759 views
    • Little plant of horrors by PiggiestJ  Cum Nonc Plants Tf  Morris’s life was rather dull until he came across a small plant to take care of. Little did he know the shenanigans the little thing would bring.  Added Sep 2020  •  2.1K words
      1,879 views
    • Love/shift by BRK(11 parts)AgeDiff Dad Hair Grad Scent MGrow Musc Grow Supn Tf Wbear Series  Maxfield has very mixed feelings about leaving the city and all his tech behind to spend the summer after graduation halfway up a mountain in the family’s backwoods cabin—just him, his dad, and a whole lot of secrets.  Added Dec 2017  •  Updated Apr 2019  •  68.1K words
      29,876 views
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    • Magic punchbowl by Mango Deville  Tf    Added Aug 2003  •  3.1K words
      9,621 views
    • Make the fur fly by LordTronimator(4 parts)Fur CGrow Grad 2Anim Nonc Retcon Tf  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.  Added Aug 2020  •  5.8K words
      1,361 views
    • A marriage of equals by BRK  Btaur Cent 4Legs XCock XLeg XLimb MGrow Tf  Tobias claims his family won’t let him marry Nick unless he converts to being a boytaur like Tobias. Nick doesn’t quite believe him, but being a boytaur does have its appeal…  Added Jun 2020  •  2.0K words
      1,445 views
    • Meta note by TrueDragonborn(2 parts)Tf    Added Jan 2011  •  2.5K words
      14,007 views
    • Mikey by BRK  Musc Tf  There are some possibilities of virtual reality that have yet to be explored.  Added Dec 2004  •  1.4K words
      13,869 views
    • Mimbo drops by Absman420(2 parts)CGrow Dumb Cock Mind MGrow Musc Nonc Rape 2Gay Tf  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.  Added Jul 2011  •  13.8K words
      37,410 views
    • The mission by BRK  Tf  Spinning across the universe can cause some wild changes over time. That can be a good thing.  Added Apr 2005  •  2.0K words
      6,259 views
    • Modern rites by red_king(15 parts)CGrow Cock BHole HyCock Cum Immort MusBr MGrow PSD Bond Grow Supn Tf  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.  Added Dec 2018  •  Updated Jun 2019  •  45.4K words
      19,245 views
    • Morphling by Apollo's Meat(2 parts)CGrow HyCock Cum MGrow Musc Tf  A freshman college student takes home hot, freaky Seth, and later puzzles over what Seth called him: "morphling".  Added Feb 2014  •  Updated Mar 2014  •  3.7K words
      21,383 views
    • A most unusual curse by BeefyBullGuy(3 parts)Absorb Cock BACock Nonc Tf  Jackson’s misadventures in a Asian shrine to cock lead to an unexpected curse.  Added Mar 2018  •  6.0K words
      13,594 views
    • My idol by Cris Kane  Musc<