Hyper Anus

• Addiction by Hatman  [  ]  “… I gotta have more! I need more! Give… me… MORE!” pleads our young scientist.  •Cock Growth •Huge Cock •Cum inflation •Hyper Cum •Stretchy •Hyper Anus  Added May 2010 1,916 words 34,520 views 4.0 stars (11 votes)
• Adventures of an Ivy League himbo by iHeywood  [  ]  This is a story all about how Liam Montgomery became the best himbo ever while a student at an Ivy League university.  •Huge Cock •Hyper Cock •Nipcocks •Hyper Cum •Nipple Emissions •Multicock •Male Pregnancy •Incest •Father/Son •Set in the Future •Hyper Anus •M/M •M/M/M  Added Jun 2022 2 parts 5,749 words 7,539 views 5.0 stars (19 votes)

• Best body modification ever by Oneleg Smith  [  ]  Mike meets an unconventional surgeon who specializes in improving your body and making sex better in unexpected ways.  •Cock Growth •Huge Cock •Transformation •Rubber/Latex •Hyper Anus  Added Mar 2019 1,994 words 17,449 views 4.1 stars (7 votes)

• Emission transmission by Cumguts  [  ]  Big grey orc Burz gets a mysterious gift in the mail, and incidentally discovers that he might have a future career in streaming on a new kink website geared explicitly toward cum inflation enthusiasts.  •Cum inflation •Hyper Cum •Muscle Gut •Belly Growth •Orcs •Urban Fantasy •Stories with Images •Hyper Anus •M  Added Jun 2022 3 parts 3,593 words 5,390 views 4.8 stars (6 votes)
• 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.  •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  Added May 2013 Updated Jun 2013 5 parts 14,943 words 54,714 views 4.6 stars (27 votes)
• Exotica by Hidevidence  [  ]  A collection of short stories set in various fantastical worlds specifically designed to facilitate incredible, absurd sexual pleasure between men.   •Always Hard •Cock Growth •Huge Cock •Hyper Cock •Prehensile Cock •Always Cumming •Hyper Cum •Multicock •Replication •Other Mental Changes •Transformation •Retcon •Hyper Anus •M/M/M/...  Added Nov 2022 Updated Dec 2022 2 parts 3,474 words 5,240 views 4.7 stars (7 votes)

• Gym story by Kisho Nakamura  [  ]  Alex decides to join a gym. One of the trainers there provides him with something that may aid in his development.  •Cock Growth •Huge Cock •Cum inflation •Muscle Growth •Muscle/Strength •Hyper Anus  Added Jul 2009 4,464 words 21,818 views 4.3 stars (8 votes)

• 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?  •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  Added Jan 2023 Updated Mar 2023 3 parts 6,734 words 15,390 views 4.8 stars (31 votes)

• Just between fiends by Cumguts  [  ]  Regular buff guy Dean is met with an unwanted guest (or two) over breakfast. Things get considerably stickier when he tries to get rid of them.  •Hyper Cock •Cum inflation •Hyper Cum •Muscle Breast •Voluptuous Men •Demons •Hyper Anus  Added Nov 2020 3,422 words 9,149 views 4.6 stars (11 votes)

• Karma pills by Musiker  [  ]  Steve has been bullying the other members of Matt's Gym for ten years. When Matt gives Steve a new kind of muscle-enhancing pill, he conveniently forgets to mention some significant side effects.  •Cock Growth •Cock Shrinking •Cockless •Huge Balls •Huge Cock •Hyper Cum •Getting Dumber •Other Mental Changes •Straight to Gay •Muscle Growth •Muscle/Strength •Gradual Change •Getting Taller •Plausible Size Difference •Size Increase •Dom/Sub •Humiliation •Nonconsensual change •Sex-Slave •Bodily Fluids •Anthro/Furry •Mind Control •Hyper Anus •M/M •M/M/M  Added Jun 2019 Updated Jul 2019 5 parts 24,186 words 28,025 views 3.8 stars (18 votes)

• 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.  •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 •Supernatural •Immortality •Hyper Anus •M/M •M/M/M  Added Dec 2018 Updated Jun 2022 16 parts 46,605 words 33,914 views 4.6 stars (37 votes)

• SNU-5|VU by DracumSum  [  ]  Nathan and Nick have to complete a biochem project on the metahumans caused by the failed SNU-5 nanobot project—only they don’t know any, and the brief random encounter Nathan had at a bus stop the other day won’t help them. Or will it?  •Cut to Uncut •Cock Growth •Huge Balls •Huge Cock •Hyper Muscle •Muscle Growth •Increased Libido •Foot Growth •Gradual Change •Transformation •Getting Taller •Giants •Plausible Size Difference •Size Increase •Hairless •Nanotech •Infectious •Set in the Future •Hyper Anus •M/M  Added Feb 2022 6,053 words 6,861 views 5.0 stars (5 votes)