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Plausible Size Difference

Stories that feature giant guys that are bigger than normal people, but still within the range of what might seem possible—in other words, upwards of eight feet tall or so, but not as tall as a house or an office building. The term carries over from macro fiction, where the tag PSD separates giants that operate among normal-sized people and can do things like bend under doorways, from Giants that range beyond that, up toward skyscraper-tall and beyond. See also Size Growth, which involves getting bigger, either a little or to an extreme, and Very Tall, for guys that are pretty much normal but are taller than usual (in the general vicinity of, say, six and a half to eight feet).

Other tags that also fall under the category “Size/Size Difference”: Getting Taller, Giants, Shrinking, Size Growth.

Stories found: 49.

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 Plausible Size Difference:

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  • The accidental wizard by nolanspice(2 parts)Musc MGrow PSD Rep Grow Tf    Added Jan 2006  •  2.9K words(2)
    10,713 views
  • Addiction by Hatman  Cock MGrow PSD    Added May 2010  •  1.9K words(6)
    15,876 views
  • Alt-world by BRK(2 parts)CGrow Cock HyCock XArm XLimb Musc PSD Rep Grow Twins  The alternate reality was constructed so the guys fell within broad parameters. Except they were a little skewed toward the exceptional. And something in the software seemed to like outliers...  Added Jul 2011  •  5.3K words(13)
    19,696 views
  • Awakening by BRK  Cock XCock PSD  Life doesn't make a lot of sense, what with the normality of people that shouldn’t be normal at all, but it all starts to make more sense when Steve encounters someone who’s different in a way he never expected.  Added Oct 2003  •  2.6K words(1)
    11,437 views
  • Away game by spacevlad(2 parts)Musc MGrow Gut PSD Grow  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.  Added Dec 2017  •  6.3K words(9)
    9,294 views
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  • Daddy’s little boy by TonnyGiant  Dom Dad Cock Musc Gut PSD  Jimmie returns home from college for the summer to rediscover just how drawn he is to his massive, muscle bear stepfather.  Added Sep 2018  •  2.5K words(3)
    3,691 views
  • Demigod chronicles I: Herakles by aquila(2 parts)CGrow Taller Cock HyCock Musc MGrow PSD Grow  A powerlifter finally hits his goals with his trainer, only to realize that there’s something big he should know about him. It isn’t all shakes and good form that gets you to top shape… sometimes, you gotta pray.  Added Dec 2018  •  3.6K words(4)
    897 views
  • Derek’s rebirth by muscl4life(3 parts)CGrow Giant Balls Cock HyCock Cum Musc MGrow NipCum Older PSD Self Grow 2Gay  An elixir from the dawn of time is turning Derek into the ultimate muscle daddy, which he demonstrates by wearing out three young admirers. Taking on a personal trainer as his acolyte, Derek prepares himself for an even more impressive Phase Two of his transformation.  Added Nov 2018  •  11.7K words(5)
    4,644 views
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  • .hack//swap by Ziel  CGrow Cock Musc MGrow MTheft PSD Shr Grow  Thomas wants to prove his wrestling skills to his best friend, but there’s one major problem. Thomas is a runt! It doesn’t matter how skillful he is if he can’t even budge his titanic pal. That’s where his latest creation comes into play. Now armed with a way to even the playing field, Thomas and his pal gear up for some friendly competition and lot more than either of them bargained for.  Added Apr 2018  •  9.0K words(7)
    5,791 views
  • Huge changes: Book two by RdyRoger(2 parts)CGrow Hair Balls Cock Infect Musc MGrow Nonc PSD Grow Series  Jason and Todd decide to help Mason, not suspecting that Mason will get an extra helping of wishes, or that Mason’s fantasies of love and growth will start affecting more than just his partners.  Added Dec 2017  •  9.9K words(6)
    6,961 views
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  • Juggernaut by ghostwriter(4 parts)CGrow Het Cock Musc MGrow PSD Grow Viol  On a study abroad excavation, a black college student and former jock finds a mysterious red crystal belonging to the god Cytorak…what could happen?  Added Jun 2018  •  Updated Jul 2018  •  5.9K words(12)
    8,113 views
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  • Macrocosm by TylerGermany(2 parts)Musc PSD  The new guy in class is eight feet tall, and that’s just the start of what draws Luke to him.  Added Feb 2016  •  Updated Mar 2016  •  9.4K words(4)
    9,722 views
  • Massive musclemonsters by TonnyGiant(3 parts)Giant Musc MGrow PSD Grow  Roger meets his new neighbors, three impressively muscled bodybuilders, just as his boss, Dr. Alejandro, experiences a very dramatic breakthrough with a serum designed to produce muscle growth and regeneration.  Added May 2018  •  Updated Jun 2018  •  6.9K words(4)
    7,089 views
  • Metaboi by BRK(8 parts)PermaBoner Swap Taller Cock Merg XAbs XArm XCock XHead XLimb XPec XTongue MGrow PSD Rep Stack Tksg Series  There’s a special clothing store that caters especially to the meta boi. If you’re their kind of customer you already know it—or you’ll soon find out.  Added Jun 2010  •  Updated Nov 2017  •  31.3K words(14)
    45,759 views
  • MissinGRO by Ziel  Cock XBalls XArm XCock XLimb PSD Grow  Javier discovers to his delight that encountering the infamous Pokémon glitch Missingno can have unanticipated real-world effects.  Added Mar 2017  •  5.5K words(7)
    4,591 views
  • More than advertised by LookinToGrow(4 parts)CGrow Cock Musc MGrow PSD Grow  Two men meet at the gym one day, and both hope to become even bigger and stronger then they once were.  Added Jan 2017  •  Updated Nov 2018  •  4.7K words(7)
    14,012 views
  • The Muscles Tech Hotel by TonnyGiant(6 parts)Giant Cock Musc MGrow PSD Grow  Deciding to take a vacation, Luke happens across a listing for a hotel where the employees and the guests all seem to be gorgeous muscle giants. He registers immediately, wanting to be among men like that, but secretly yearning even more desperately to be just like them.  Added Nov 2017  •  Updated Dec 2017  •  22.7K words(12)
    7,386 views
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  • Naked by Also Known As(10 parts)CGrow Cock Musc MGrow PSD Grow  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.  Added Jun 2016  •  38.9K words(26)
    21,000 views
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  • Payback by muscl4life(2 parts)CGrow Giant Cock HyCock Musc MGrow MTheft Nonc PSD Grow  After being betrayed by his bodybuilder boyfriend, Leo stumbles on an acquaintance with a wizard who claims to want to help him get even.  Added Jun 2018  •  9.7K words(3)
    6,787 views
  • The people you find on the internet by Miguel Burgos(3 parts)Dig Taller Cum XCock PSD  Enrique tried dating on the internet and started to encounter some really, really different people.  Added Dec 2015  •  Updated Oct 2016  •  4.5K words(7)
    8,298 views
  • Pride by NBCK99  CGrow Hair Taller Cock Musc MGrow PSD Grow  Jake attends his first Pride parade with his boyfriend Ross and is a bit overwhelmed, so they step into a bar—where it turns out the impressively hot and muscular patrons and staff take a shine to the new arrivals.  Added Jul 2018  •  6.5K words(6)
    3,300 views
  • The professor of reality by RdyRoger(2 parts)CGrow Cock Musc MGrow PSD Grow  Max’s friend’s boss, the Professor, has been experimenting with making changes to reality, but when he tries to solve Max’s problems with his undersized equipment things get a little out of hand.  Added Dec 2017  •  9.5K words(5)
    5,721 views
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  • Shift by NBCK99(5 parts)CGrow Cock HyCock XArm Musc MGrow PSD  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.  Added Jul 2014  •  Updated Mar 2016  •  13.6K words(53)
    26,882 views
  • The source: a Henry Himura mystery by Proteus(11 parts)CGrow Dumb Hair Grad Cock Musc MGrow PSD  Henry is hired to track down a missing young man names Samuel Roth. The trail leads him to a gym and a mysterious serum called Hard-T.  Added Aug 2013  •  15.9K words(1)
    11,203 views
  • Summer research by spacevlad(12 parts)Dumb Hair Giant Cock Musc MGrow PSD Grow Viol  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.  Added Oct 2017  •  Updated Dec 2017  •  28.5K words(12)
    16,721 views
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  • Tales of a growing teen by NBCK99(2 parts)Taller Cock Musc PSD Grow  Teen giant Drew outlines the perks and struggles of being larger than life in his blog.  Added Dec 2015  •  4.0K words(5)
    17,207 views
  • Tank the bouncer by spacevlad(18 parts)Giant Musc MGrow Gut Nonc PSD Grow 2Gay Viol  Bar owner Matt can only afford one bouncer for his bar, so he hires the biggest one he can find: Tank, an ex-college football player who is eager to grow even bigger. Matt has a way to make that happen, but after the first unexpectedly effective injection, the newly huge and strong Tank starts turning the tables on his boss.  Added Jun 2016  •  Updated Aug 2016  •  35.0K words(16)
    22,211 views
  • They’re really sensitive now by spacevlad(2 parts)Giant Musc MGrow PSD Grow  Burly musclebear daddy Josh gets his nipples pierced, which makes them extra sensitive...and leads to some BIG unexpected benefits!  Added Nov 2016  •  Updated Apr 2017  •  5.7K words(5)
    8,794 views
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  • Unexpected growth spurt by rusalko(6 parts)CGrow Cock Musc MGrow PSD Grow  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.  Added Dec 2012  •  Updated Feb 2017  •  10.7K words(8)
    34,588 views
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  • A weekend trip to remember by kaoskios  Hair Musc MGrow PSD Grow  Roberto was hoping to have a weekend away camping with his hot coworker. But after a mixup, Roberto finds himself with Sab, his coworker’s friend. Sab seems normal… but is he getting bigger? And hairier? It must be Roberto’s imagination.  Added Jul 2018  •  2.7K words(4)
    2,967 views
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