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Gradual Change

This tag describes changes that take place gradually over time, rather than all at once in a big transformation, or a series of big transformations at different times.

Kinds of “Gradual Change” 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, Hairless, Human to Animal, Human to Body Part, Human to Inanimate, Inflation, Male Pregnancy, Race Transformation, Stretchy, Transformation.

    Stories found: 63.

    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 Gradual Change:

    • Canis drainem by Ziel(2 parts)Grad Nonc Shr  Pals Cecil and Harvey have a plan to cut the resident bully down to size, but things quickly spiral out of control.  Added Jun 2020  •  Updated Sep 2020  •  7.5K words
    • The cock blog by TheSizeKing(3 parts)CGrow Grad Cock HyCock Cum  Patrick was just your average 25 year old guy. He’s just got one secret: he has the world’s biggest dick, and it seems to be getting bigger.  Added Aug 2020  •  3.6K words
    • Come to me by Richard Jasper(10 parts)Grad MGrow  Eric is a hot, young skimpy stud—what nowadays we'd call a twunk. Then he starts hearing a voice in his head. Eat big, lift big, get big! He follows the voice's advice—with results more spectacular than he could have imagined!  Added Apr 2020  •  12.3K words
    • Contamination by RdyRoger  CGrow Hair Taller Grad Balls Cock Infect MGrow Musc Grow  After his dick came in contact with an experimental substance, high schooler Vincent starts slowly getting bigger… first in his crotch and then other places, too. Thomas, a tall, handsome jock, likes teasing him about it at every opportunity.  Added Jul 2019  •  6.1K words
    • Cursed cocks by CockTFBoi(8 parts)CGrow CShr FTM Grad MGrow 2Gay  Marcus is having a horny night in the dorm when an inadvertent wish by his roommate sends him on a path to a new life.  Added Aug 2020  •  25.2K words
    • Dylan & Josh by Alakazam1988(16 parts)Xmas Grad Balls Cock HyCock  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.  Added Apr 2019  •  Updated Jul 2019  •  18.4K words
    • The fake boyfriend by BRK(4 parts)CGrow Dig Taller Grad Cock HyTongue MGrow Musc PSD Grow  Zeke must travel back to his hometown, Woody Hole, in a last-ditch effort to prove he’s gay and end the eternal matchmaking with his high-school girlfriend, Stacy. A fake boyfriend is the only way—but Zeke’s closest relationship is with a customized character from an open-sandbox simulation game, a cocky personal trainer named Troy.  Added Aug 2020  •  13.7K words
    • The good freak by Also Known As(33 parts)Hard CGrow Taller Grad Balls Cock Cum Infect MGrow Musc Grow  Kevin Peters is a cheerful, very fit young man who happens to be getting bigger and hotter in every way, much to the bemusement (and secret arousal) of his doctor. Soon the guys around him are growing too, and Dr. Donaldson discovers even he’s not immune...  Added Nov 2002  •  33.5K words
    • Growing relationship by Alakazam1988(4 parts)CGrow Grad Balls Cock HyCock MGrow Musc  Shortly after finding the love of his life, Connor has these strange shivers now and then. First, he tries to deny everything, but the truth can’t hide for long. Connor’s cock grows with each shiver. Year after year after year.  Added Nov 2018  •  10.9K words
    • Hard to hide by BRK(7 parts)CGrow Taller Grad Cock HyCock Merg MGrow Musc Share Shr Grow  Jooyong is working his uncle’s demolition site when he encounters a man in need of protection, but it’s more complicated than your average plea for help. For one thing, the man who needs help is not an ordinary man. And the kind of help he needs is something Jooyong isn’t even a little prepared for.  Added Jun 2017  •  Updated Jul 2019  •  20.2K words
    • 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
    • Jessie’s girls by Richard Jasper(6 parts)Grad MGrow Musc  Three young men—Jessie, Henry, and Frank—have known each other since they were five years old, when their respective families each wound up moving to Magnolia Terrace at roughly the same time. Jessie was the jock, Henry was the brainiac, Frank the artsy one. This is the story of how they grew up together (and boy howdy did they grow!).  Added May 2020  •  6.1K words
    • John the wizard by RdyRoger(7 parts)CGrow Hair Taller Grad Balls Cock Cum MGrow Musc Grow Sugg  John is a wizard and likes helping out his friends—usually in ways that involve none-too-subtle increases in height, equipment size, and muscle.  Added Dec 2017  •  Updated Sep 2019  •  24.5K words
    • Jonathan’s journey by Richard Jasper(13 parts)CGrow Taller Grad Cock MGrow Musc Grow  Join Jonathan and his best friend Todd on their four-year journey from geeky 14-year-olds to veritable mountains of mind-blowing muscle!  Added May 2020  •  13.3K words
    • 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
    • The Latin twins by RdyRoger(2 parts)Bro CGrow CShr Dom Taller Grad Balls Cock MGrow Musc Race Shr Grow 2Gay Sugg  A man is gifted by "the watchers" to make changes to himself and others that will last for 24 hours. Two of his escapades are detailed in this story.  Added Apr 2012  •  7.2K words
    • Let’s make a bet by Seth Peterson(3 parts)Belly Fem Dom Taller Grad MusBr MGrow Gut Musc PSD  My boyfriend has always had some exceptional monster pecs! And over the years, they just got bigger and bigger… and so did he! My man cannot stop growing, and I love every inch of his expanding, heaving frame! Come check out the perfect swelling journey that is my big alpha boyfriend!  Added May 2019  •  10.4K words
    • Li’l Dude by Richard Jasper(10 parts)CGrow Taller Grad Cock MGrow Musc Grow  Robert is a geeky college freshman, totally smitten with his “senior buddy,” a big, built, blond, hunky California surfer dude named Chris, who dubs him “Li’l Dude.” Ridiculous muscle growth ensues (as usual!).  Added May 2020  •  10.5K words
    • The long slow road to hugeness by Richard Jasper(6 parts)CGrow Grad Cock MGrow Musc  Kevin Foxworth starts lifting at 16 with your basic Weider barbell set. Despite his best efforts, he never gains more (or less) than 10 lbs. of muscle per year. More than 20 years later, he’s still at it. Do the math!  Added Aug 2020  •  6.8K words
    • A love letter by Seth Peterson  Belly Fat Taller Grad PSD 2Gay  A slow, steady, and delicious story of love, growth, and lots of big doughy softness! Come see the progression of a boy and his one and only…from friends to lovers to something very big indeed!  Added May 2020  •  20.4K words
    • 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
    • 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
    • Morphogenic steroids by RdyRoger(4 parts)CGrow Hair Taller Grad Balls Cock Infect MGrow Musc PSD Self Grow  Rod’s dad is working on a new technology that makes small things bigger and big things huge, with incredible implications for food supplies and beyond—only it only lasts for five hours. Rod figures being bigger for five hours… that would be pretty awesome.  Added Oct 2019  •  15.3K words
    • Muscle blind by Richard Jasper  Grad Cock MGrow Musc 2Gay  Brandon, Ryan, Bobby, and Roger are college freshmen, sharing a suite. Roger is growing like a rocket but Bobby doesn’t seem to notice, so Brandon and Ryan devise an experiment to open Bobby’s eyes.  Added Jun 2020  •  2.4K words
    • The muscle machine by Richard Jasper(11 parts)CGrow Taller Grad Cock MGrow Musc Grow  When Max Hardesty returns to Emory after summer break, his freshman roommate, Ralphie Peters, is in for a big surprise! And it just keeps getting bigger!  Added Aug 2020  •  8.8K words
    • My big problem by Richard Jasper(5 parts)Grad Cock Strong MGrow Musc  Austin, Arturo, Bernie and Ralphie have been friends since they were kids—and discovered that Austin had an improbably huge dick! Growing his muscles to match turns into a group effort!  Added Aug 2020  •  9.2K words
    • My bodyguard by Richard Jasper(4 parts)CGrow Grad Cock Strong MGrow Musc  “Worthless” Worthington High School sophomores Roger Jensen and Nick Delios bond when the latter saves the former’s scrawny ass from the class bully, Ralphie Peters. Their burgeoning affection and academic accomplishments are only exceeded by their ridiculous muscle growth.  Added Aug 2020  •  10.2K words
    • My quarantine get in shape plan by Dream Big(21 parts)CGrow Grad Scent MGrow Musc  Stuck at home during the quarantine, Terry orders a used weight machine, figuring he’ll use the time to lose weight and tone up. His motivation doesn’t really hit, though, until he starts spending time with his hunky neighbor, Sebastian.  Added Aug 2020  •  Updated Sep 2020  •  15.5K words
    • Needham High Mavericks by BRK(4 parts)CGrow Grad XCock MGrow Musc Rep  Motivating the team has been taken up a notch.  Added Aug 2005  •  Updated Oct 2018  •  14.5K words
    • Neighbor kids by Richard Jasper  Grad MGrow Musc  The continuing adventures of Jamie and Stevie, now living on their own. Jamie’s spectacular growth never slows down!  Added Sep 2020  •  3.1K words
    • The new alphas go camping by Eric Aaldersen  CGrow Grad Balls Balls Musc Supn Series  New alphas Brian, Jamie, and Jordan all enjoy fireside fucks with their lead alpha, Luke, after Luke passes on the Lore. But not before Luke and Brian bond as alphas for the first time!  Added May 2020  •  5.4K words
    • The new job by hyperboi(8 parts)Bro CGrow Grad Cock HyCock HMusc MGrow Musc Grow  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.  Added Aug 2014  •  20.4K words
    • The new model by Richard Jasper(4 parts)CGrow Grad Cock Strong MGrow Musc  Sixty-year-old Roger Jespersen no longer believes his lifelong bodybuilding goals are achievable. On the other hand, his new therapist, Dr. Haddad, possesses unusual talents. Thanks to his efforts Roger’s inner Mass Monster is unleashed.  Added Sep 2020  •  5.2K words
    • The Nubian prince by Richard Jasper(5 parts)AgeDiff Grad Cock MGrow Musc  25-year-old Rob is 5’10” and 160 pounds of Drop Dead Gorgeous. They don’t call him “The Nubian Prince” for nothing! So why’s he hiring a personal trainer at Solstice, the hottest gay gym in town? Because he’s bored. His only requirement: He doesn’t want to get any bigger!  Added Sep 2020  •  4.2K words
    • One hot summer by BRK(14 parts)Bro Weed CGrow Hair Grad Cock Mental MGrow Musc Nonc Twins  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.  Added Jun 2019  •  Updated Jun 2020  •  32.8K words
    • The porn star by Richard Jasper(3 parts)CGrow Grad Cock MGrow Musc  What do you do with a gigantic dick and the ability to slab on hundreds of pounds of muscle? Make movies, of course!  Added Sep 2020  •  3.1K words
    • Power couple by Richard Jasper(5 parts)Grad Cock MGrow Musc  Roger and Bruce have been best friends since age 13. They go off to different high schools and Roger gets into lifting, thereby sealing their destinies.  Added Sep 2020  •  6.2K words
    • Prototype by FanTCMan(12 parts)Hair Grad Cock MGrow Musc  Rocky starts working out to distract attention from his embarrassing donkey dick, only to make himself a spectacle that way too. Once he hits college he catches the eye of student teacher Jake, who sees possibilities for Rocky...  Added Jun 2005  •  16.0K words
    • Puberty is a bitch by Lover Boy 2(11 parts)CGrow Grad Cock HyCock MGrow Grow    Added Sep 2009  •  14.6K words
    • The Reflex by Cris Kane(5 parts)AI Grad MGrow Musc  James receives an unexpected gift from an old friend: the trendy new home gym called the Reflex System.  Added Mar 2020  •  Updated Apr 2020  •  24.8K words
    • Reset by Richard Jasper  AgeDown 2Straight Grad MGrow Musc 2Gay  Inexplicably starting his life over again as a weedy teenager, Richard is determined to make sure things are different this time.  Added Mar 2020  •  9.8K words
    • Resolution by Richard Jasper(8 parts)CGrow Taller Grad Cock HyCock Strong MGrow Musc New Years Grow  Skimpy young Ben, stuck for Christmas in a bumfuck town on the high plains, is astounded that Max, the bartender keeping him company, is a total musclebear stud! He resolves to come back in a year a bigger and better man and with Max’s encouragement does just that.  Added Sep 2020  •  6.6K words
    • Under control by Alakazam1988(5 parts)CGrow Taller Grad Balls Cock MGrow Musc Grow  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.  Added Apr 2020  •  Updated Aug 2020  •  22.1K words