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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.

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

Stories found: 92.

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:

  • The berry by rm20  Tf    Added Apr 2006  •  1.1K words(1)
  • 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(4)
  • 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(3)
  • Body love by Josh Dugan  Tf  An effort to remember the dawn of a utopian transformation.  Added May 2002  •  1.0K words(2)
  • Bodymorphchat by BRK  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(7)
  • Bull’s strength by muscl4life(28 parts)PermaBoner Beast CGrow Dad Fly Taller Balls Cock HyCock Infect XAbs XCock Musc MGrow PSD Grow Tf Viol  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(20)
  • Dog and Pony Show: FAQ by Musiker  Fur Bi Dom Cock 2Anim Mental Musc MGrow Slave 2Gay Tf  A hugely muscled human/dog hybrid gets to answer some FAQs about his awesome life in the adults-only Land of Eros Zoo, including daily activities, his sex life with his big, horsey lover, and just how lovingly their Master takes care of them.  Added Apr 2019  •  7.1K words(1)
  • Hard body by Also Known As(10 parts)CGrow Dom Balls Cock Musc MGrow 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 Feb 2018  •  56.6K words(67)
  • 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(4)
  • High quality replacement parts (free with trade-in) by Keyed  Swap CGrow Musc MGrow 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(10)
  • Hulk hunter by JayPat(2 parts)CGrow Giant Cock HyCock Infect XAbs Musc MGrow Nonc Grow Tf Viol 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(6)
  • 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(7)
  • 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(10)
  • It’s magic by TylerGermany(2 parts)Infect Tf    Added Apr 2014  •  2.1K words()
  • Jacob and Dameian by Honkycat(2 parts)Str Tf    Added May 2002  •  4.4K words(1)
  • 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(10)
  • Magic punchbowl by Mango Deville  Tf    Added Aug 2003  •  3.1K words(1)
  • Meta note by TrueDragonborn(2 parts)Tf    Added Jan 2011  •  2.5K words()
  • Mikey by BRK  Musc Tf  There are some possibilities of virtual reality that have yet to be explored.  Added Dec 2004  •  1.4K words(2)
  • Mimbo drops by Absman420(2 parts)CGrow Dumb Cock Mind Musc MGrow Nonc 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(22)
  • 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()
  • Modern rites by red_king(14 parts)CGrow Cock BHole HyCock Cum Immort MusBr MGrow PSD 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 Mar 2019  •  42.5K words(20)
  • Morphling by Apollo's Meat(2 parts)CGrow HyCock Cum Musc MGrow 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(7)
  • A most unusual curse by BeefyBullGuy(3 parts)Absorb BACock Cock Nonc Tf  Jackson’s misadventures in a Asian shrine to cock lead to an unexpected curse.  Added Mar 2018  •  6.0K words(6)
  • My tights fetish got out of hand by James Johnson  MTF Tf Tg  He loves wearing pantyhose, except for the buzzkill of his male junk getting in the way—so he’s thrilled when he ends up with female equipment instead.  Added Feb 2018  •  2.1K words(4)
  • Pet pride by Eriknl77  Fur Musc Tf  How a young man becomes a happy and proud pet.  Added Aug 2018  •  2.4K words(4)
  • Playing with fire by BRK  Cock Musc MGrow Grow Super Tf  Roman is drifting through Oregon seacoast towns, letting life come to him, when he encounters a guy who shares his wickedly sexualized love of an obscure comic-book character called Lavaman, and then, not long after, a pair of gag spectacles that supposedly let you see the things you most enjoy fantasizing about.  Added Mar 2018  •  3.8K words(9)
  • Plus one by Double-U  Musc MGrow Grow StPat Tf  I thought getting a new suite mate would be nothing but bad news. But that was before I learned he was a hot, muscular stud.  Added Aug 2016  •  6.6K words(16)
  • Practical FX by MuscleMonkeh  Fur CGrow Fant 2Anim Mind MGrow Gut Nonc Older Grow Tf  A special effects movie mogul, used to getting his own way, tries to muscle an especially gifted young producer into working for his production company.  Added Jun 2018  •  5.1K words(4)
  • Project Cerulean MX by The Pecman(17 parts)Cock Musc MGrow Shr Grow Tf  After Michael and Joey discover a secret base in the desert, they start to undergo some changes that are both unsetting and exciting.  Added Jun 2010  •  Updated May 2017  •  54.1K words(9)
  • Ray of light by dymondbolt  CGrow Cock HyCock Musc Tf  Ray’s chance encounter at a new club with a sexy-voiced man just before the magic show becomes even more interesting when he turns out to be the magician. And he might need a volunteer from the audience.  Added Jan 2012  •  6.7K words(4)
  • Werequeer by Lee  CGrow Dad Balls HyCock Cum Tf  A dad helps his son through his first transformation into a WereQueer.  Added Apr 2004  •  2.4K words(10)
  • What he wants by Centaur Writer  Cent CGrow Cock Cum Musc Tf  Steve has a dead end job and boring life. Then, a trip to an estate sale makes it possible for all his dreams to come true, even ones he didn't know he had.  Added May 2017  •  2.8K words(14)
  • Woolly monkey zoo exhibit by Eriknl77  2Anim Nonc Tf  Two friends fighting for animal rights end up becoming part of an exhibit in a zoo.  Added Feb 2019  •  3.1K words()
  • Wrappers by BRK  Rep Tf  I’m a little oblivious sometimes, but when you walk into class and all your students look like the same young and hunky actor, you start to get a clue that something is up.  Added Jul 2005  •  3.4K words(7)