Stories that feature erotic and/or transformative liaisons between fathers and sons, or someone engaging sexually or transformatively with both a son and a father.
Related: Brothers; Twins.
Child of: Incest.
Top Stories: “Spice”; “My roommate (complete)”; “Empire”; “Alpha product series”; “Sam and Bolt”; “Bull’s strength”; “Musclove, Texas”; “The awakening”; “Damian and the three muscleteens”; “Shirtbusters”.
Recently Updated: “Making the rules”; “Spin the bottle”; “Unicorn Frappuccino: Refill”.
50 stories found. Total word count: 1,555,249.
- Chris olympus by FanTCMan CockUp 2Gay MuscUp Musc Hairier AgeDiff Inc Dad Added Dec 2002 3 parts 9,167 words 32,100 views 4.4 stars (16 votes)
- The chronicles of Besar Otot by OneLuckyGuy89 CockUp Cock HyCock XCock MFSwap 2Gay MuscUp Musc Tf Taller PSD SizeUp AgeUp Hairier AgeDiff Inc Bro Dad Nonc HyPher On a distant unknown island near Indonesia called Besar Otot, Kenny Masters returns home a new man and intends to change his family as well. Added Jan 2020 Updated May 2021 8 parts 25,601 words 11,182 views
- Company guys by FanTCMan CockUp Cock Mental 2Gay MuscUp Musc Libido Hairier AgeDiff Inc Dad You can’t even imagine how excited Joey and I were, excited and scared, when Dad said he was going to give us the formula he’d been sampling. We were going to be models for what he called the Company. Added Dec 2002 2 parts 7,919 words 29,194 views 4.7 stars (10 votes)
- The construction worker by Peterbilt CockUp Cock Musc AgeDiff Virgin Inc Dad A troubled young hardhat named Jordan is helped through a series of self-discoveries by Joe, a father-figure who comes to mean more and more to Jordan. Added Sep 2015 22,148 words 21,756 views 4.8 stars (12 votes)
- The cowboy by Chance Riverwind CockUp Cock Musc Giant AgeDiff Inc Dad Added Jul 2002 1,967 words 15,602 views 2.0 stars (5 votes)
- Daddy’s little boy by TonnyGiant Cock Gut Musc PSD AgeDiff Inc Dad Dom Jimmie returns home from college for the summer to rediscover just how drawn he is to his massive, muscle bear stepfather. Added Sep 2018 Updated May 2019 2 parts 4,961 words 20,764 views 4.8 stars (9 votes)
- Dad’s gift by John Y. CockUp Cock AgeDiff Inc Dad For Jeff’s 18th birthday, his dad decides to give him something special and close to his heart—a donkey dick. Added Mar 2004 4,994 words 43,672 views 4.6 stars (25 votes)
- Daemos island by Charles Westfall CockUp Cock MuscUp Musc Libido SizeUp AgeDiff Inc Dad Twins Viol A Polish scientist and explorer, Ferdinand Rolcek, discovers a hidden island where the lost secrets of the Daemos, alien pioneers of masculine beauty and sexuality far beyond anything known to humanity, are finally revealed to him; and what he learns makes him never want to leave again. Don’t worry, he won’t be lonely. Added Feb 2003 6 parts 14,639 words 26,373 views 3.2 stars (20 votes)
- Damian and the three muscleteens by hyperboi CockUp Cock HyCock 2Gay MuscUp Musc AgeDiff Inc Bro Dad Twins Infect Added Dec 2012 5 parts 8,169 words 49,079 views 4.3 stars (26 votes)
- A day at the beach by Thatbadwriter Cock HyCock Giant SizeUp AgeDiff Inc Dad Viol You watch in dismay and amazement as your father, who’s gained the ability to grow himself to giant size in a freak medical accident, takes a trip to the beach with you and decides to make himself bigger than he’s ever tried to become before. Added Aug 2019 1,624 words 8,401 views 4.1 stars (16 votes)
- Don’t talk about me! by jewelbee PublicOrg 2Gay BellyUp Fatter Retcon Sugg Inc Dad Nonc What if one day, everything someone said about you became true? Everything someone says to your face, whether lie, sarcasm, joke, hyperbole… would change you. 18 year old campus douche Nick learns this the hard way, faced with a curse after he led on the wrong girl. How will he get rid of the curse, and more importantly… just how much will he change in the meantime? Added Aug 2020 Updated Jul 2021 3 parts 4,348 words 8,324 views 4.9 stars (37 votes)
- Empire by LenZelig CockUp Cock Self 2Gay MuscUp Musc Taller SizeUp AgeDiff Beast Virgin Inc Bro Dad Twins Bi Het Nonc Slave Share Alien Space Witch Tksg Mind Series A massive consolidation of the entire “Bill’s Education” universe, incorporating the previously separately posted “The Surfer”, “The Rescue”, “Spring Break”, “Pickup Trouble”, and “School Days”, “Empire” is the wide-ranging tale of easy transformation and even easier sex across all boundaries—friends, family members, genders, even species—as a fortunate crop of humans stumble into a wider universe of size, muscle, double-digit-length cocks and much, much more and discover the true meaning of shared, radical, uninhibited pleasure. Added Apr 2019 Updated May 2021 40 parts 365,561 words 116,260 views 4.8 stars (38 votes)
- Endmyths by Taur Reg XLimb AgeDiff Inc Dad Cent Naga Shift Transformations spread through an entire town—but why? Added Aug 2013 12 parts 18,537 words 14,532 views 4.8 stars (6 votes)
- Making the rules by EdIam Mental Scent Inc Bro Dad Hum Nonc Slave HyPher Hypno Mind Frank likes structure and rules in his home. Desmond likes corrupting families. Whatever could happen when the two meet? Added Sep 2021 2 parts 22,700 words 2,313 views
- Mass X by Max Mann CockUp Cock 2Gay MuscUp Musc Libido Handsomer Hairier AgeDiff Inc Dad Xmas New Years Five short stories of men getting bigger and sexier, through the use of “Mass X”. Added Feb 2005 5 parts 19,019 words 36,969 views 4.6 stars (14 votes)
- Massive by Alex Rif SizeUp Suit AgeDiff Inc Dad Lycra Hallow Super Images James finds the superhero costume his stepson had ordered from a strange website for Halloween, and decides to try it on. Added Feb 2016 2 parts 2,851 words 26,839 views 3.3 stars (13 votes)
- Matt and his dad by Meddler Incs Cock 2Gay MuscUp Musc Inc Dad Nonc Symb Hypno Series When Matt comes home to visit his dad, he is forced into being part of The Crew. Added Jun 2020 3,343 words 7,080 views
- Musclove, Texas by Max Mann CockUp HyCock HyCum MuscUp Musc AgeDiff Virgin Inc Bro Dad Twins Bond Moving to Musclove, Texas with his sons to take up a new teaching position, Rick Long is startled to find a town full of huge, hung, and horny men, all of them eager to have the newcomers join them (in more ways than one). Added Sep 2004 9 parts 26,085 words 58,019 views 4.7 stars (45 votes)
- My roommate (complete) by LenZelig CockUp Cock MuscUp Musc AgeDiff Virgin Inc Bro Dad Bi Het Dom Witch Pride Mind Bill’s hot adventures with his irresistible sex-god of a roommate, Andy Wang, and the others drawn into his adventures, combined with the stories of Andy’s son and his friends. (This revised and updated compilation version includes both “My Roommate” and “My Roommate: The Next Generation.”) Added Jul 2002 Updated Jun 2021 29 parts 222,742 words 121,216 views 4.9 stars (77 votes)
- My son home on leave by Peterbilt Cock Musc AgeDiff Inc Dad A story of sex between a man and his adult Marine son when he is home on leave. Added Feb 2017 2 parts 18,403 words 13,441 views 4.7 stars (9 votes)
- My son is worried about his big cock by UnknownGentrifier Cock AgeDiff Inc Dad Andy seeks his father’s advice about whether his cock really is too big, like his friends say it is. Added Oct 2020 2,194 words 4,835 views 3.3 stars (10 votes)
- My son, the superstud by Max Mann CockUp Cock 2Gay MuscUp Musc AgeDiff Inc Dad Thom is shocked to hear that his son Rusty has enrolled in a muscle-growth transformation experiment—and it’s already too late to stop him. Added Oct 2003 3,842 words 104,408 views 3.8 stars (30 votes)
- The new associate by Tym Greene CockUp Cock HyCock MuscUp Musc Nude SizeUp TongueGr Dad Fur M/M M/M/M Zhu is looking forward to his first day a new architectural firm, sure the way he grows—and makes other people grow just from being around him—will make things very interesting. Added May 2015 Updated Dec 2020 3 parts 12,564 words 34,973 views
- New neighbors by BRK Cock XCock AgeDiff Inc Dad Jimmy is starting to enjoy his first summer with his newly acquired wishpower when a very sexy couple moves in next door. The only trouble is, Jimmy doesn’t immediately recognize the true nature of their relationship, and by the time he does, it’s already too late. Added Jan 2016 Updated Nov 2019 2 parts 11,319 words 16,608 views 4.4 stars (9 votes)
- The night shift by Dreamtransformer Musc AgeDiff Inc Dad Added Dec 2013 1,239 words 11,232 views
- Not just imagination by DarkDjin CockUp Cock MuscUp Musc Sugg AgeDiff Inc Dad Jampson’s overactive imagination starts to grow his cop dad and his friends...and somehow not only does it become real, but the men are pretty into it. Added Jun 2014 Updated Jul 2014 2 parts 10,894 words 33,896 views 4.6 stars (34 votes)
- Sam and Bolt by Alakazam1988 CockUp Balls Cock HyCock NipC Self CumInf HyCum NipCum Taller SizeUp Hairier AgeDiff Inc Dad Infect Sam’s father, Bolt, shares with his size-hungry son the secrets of becoming truly huge. Added Sep 2016 Updated Dec 2016 11 parts 48,242 words 62,775 views 3.7 stars (56 votes)
- Shirtbusters by TFWizard MuscUp Musc SizeUp AgeDiff Inc Dad Jared, Lance, and Lance’s father Ben discover a way to bust out of their shirts, and they can’t get enough of it. Added Oct 2005 2 parts 6,769 words 43,768 views 4.1 stars (14 votes)
- Spice by Mr. X and Mad Dog CockUp Cock MuscUp Musc Worship Scent Grad Voice SizeUp Hairier AgeDiff Inc Dad Pride In this epic story, the transformative powers of a certain substance are tested by a couple of very horny guys. Added Oct 2009 Updated Nov 2019 50 parts 221,027 words 184,781 views 4.1 stars (59 votes)
- Spin the bottle by EdIam Cock 2Gay Inc Dad Dom Matty lives in a pretty homophobic area with pretty homophobic friends, but maybe a magically-enhanced game of spin the bottle can help loosen them up? Added Aug 2021 9,825 words 2,134 views 3.8 stars (5 votes)
- Suggestions by Jack the Mindbender Cock Sugg AgeDiff Inc Dad Mind Jack is surprised by how quickly his hot stepfather goes from a closed book to jerking off right in front of him… Added Dec 2018 2,749 words 7,296 views 4.4 stars (9 votes)