30 Votes
Viral Enhancement
The discoveries of Dr. Diego Juarez might change Peter's life forever, if not the world.
Topics: Anal Sex, Big Dick, Hairy men, Face Fuck, Sci-Fi, Big Balls
GayDemon's Stories: On this page you can find erotic fiction where you can read about futuristic gay sex and sci-fi listed by date.
The discoveries of Dr. Diego Juarez might change Peter's life forever, if not the world.
Topics: Anal Sex, Big Dick, Hairy men, Face Fuck, Sci-Fi, Big Balls
Scott looked at me and I at him; that moment, we were connected, fighting as brothers. One by one, no problem. Dylan and Derek worked together as well. I was picked up by the alpha leader and hurled against a wall.
Topics: Brothers, Sci-Fi
With Ryan on the run from the alpha, he enlists the help from an unlikely source....
Topics: Werewolf, Sci-Fi
After a frightening dream, Ryan will team up with Danny to find out what happened, and why he had the dream.
Topics: Werewolf, Sci-Fi
Now that Ryan is aware of his current self, how will he maintain a normal life and get the guy of his dreams?
Topics: Werewolf, Sci-Fi
The saga continues at neversoft prison.
Topics: Anal Sex, Hairy men, Prison, Sci-Fi
Meet Ryan McCall, just an average high school senior. 18, steady job, and he's going to graduate with honors. But one night in the woods turns his life upside down...
Topics: Outdoor, Werewolf, Sci-Fi, High School
Greetings life forms, I am the Eccentric Rocket The Epic And I am here to let you explore my adventures with me becuase I just love shareing it with everyone even if they do not want to hear my flirtatious stories. This story tells of the dawn of my birth and my soul mates birth Tronamie and how we became to be a couple in a juicy tail. I hope you enjoy this FanFiction story!
Topics: Sportsmen, Sci-Fi, FanFiction
Back at Maui Angel might have found a way he can help his friends. Meanwhile Sky and the others head back to Maui to regroup.
Topics: Latin Men, Masturbation, Sci-Fi
The conclusion. This is a fan fiction story based on the animated TV series Ben 10: Omniverse I decided to make this series because I thought it would be a nice one. Enjoy.
Topics: Sci-Fi, Sex, FanFiction
supernatural. supersexy. this prison isnt what it seems
Topics: Anal Sex, Dildo, Hairy men, Sloppy Hole, Prison, Sci-Fi, Twink, Oral & Blowjobs, Supernatural, Butt Plug
Ben does some training and he wins something special.
Topics: Sci-Fi, Sex, FanFiction
This is a fan fiction story based on the animated TV series Ben 10: Omniverse I decided to make this series because I thought it would be a nice one. Enjoy.
Topics: Sci-Fi, Sex, FanFiction
A man goes on a date with a dreamy mystery man, when they get to his house he wants to take it to the next level, however his date has a secrete he is ashamed to reveal! Is he "man" enough to reveal whats beneath his wolfish good looks?
Topics: Sci-Fi
Part two of this Camili-Cat fan-fiction~ Upon arriving at Mallor's home, he and Cam are kidnapped by Mallor's mortal enemy, General Zaxxon. Zaxxon has stolen Mallor's son, Venn, and plans to turn all three of them into his own personal slaves. In the mean time, Zaxxon's guards decide to have some fun with Cam...
Topics: Puppy Play, Sci-Fi, Master & Slave
Colton Nicks, Chris Adams, and 3 other guys get the most erotic alien sex of their lives.
Topics: Anal Sex, Sci-Fi, Aliens
The second part, it was originally written for my own use, but I decided to post it somewhere, that how I found this website. NOTE: I do not gain anything from the stories I publish here, however please do not copy them to anywhere else, I don't like that.
Topics: Cop, Sci-Fi
I've decide to publish here, not in 'fantasy' but here, under 'sci-fi'. NOTE: I do not gain anything from the stories I publish here, however please do not copy them to anywhere else. Some parts of this first chapter is rather similar to 'Alex's New Life', but the rest of the stories are 100% mine.
Topics: Cop, Sci-Fi
I woke up several hours later in my dark stateroom with a heavy blanket over me...
Topics: Sci-Fi
I stumble out into the cold, trying to escape my evil captors. They have tortured me, enslaved me to their every whim, and their taking more of us every day.
Topics: Sci-Fi, Master & Slave
Earth: 2365. Location: San Jose CA. Spaceport 1143.
Topics: Sci-Fi
Taking place after Rapture #4/Cam Changes - Camili-Cat is posing as a stripper as he searches for a way to bring back his lost lover, Locus. During a performance one night, a Lupine Caninoid buys Cam for the night for some hot hardcore action aboard his ship. Original character of Cam courtesy of Patrick Fillion.
Topics: Anal Sex, Big Dick, Sloppy Hole, Sci-Fi, Oral & Blowjobs
Kailyn is a nobody, but nobodies can go a long way if they can grab their futures and shape it. Lucky for Kailyn his future is in reach, though it won't be him who will shape it.
Topics: Sci-Fi
Aliens pursue a selfconscious young man wearing a human skin suit because he's sick of being ugly. He makes friends with an android while running away from evil aliens!
Topics: Black Men, Anal Sex, Construction Worker, Sci-Fi, Aliens, Robot
Imagine getting a handsome new look, but being pursued by evil aliens because of it!
Topics: Sci-Fi, Aliens
Dear Science. Please perfect cloning faster. I have three gorgeous boys to clone! Sincerely, Their lover-boy.
Topics: Anal Sex, Big Dick, Sloppy Hole, Sci-Fi, Twink, Oral & Blowjobs
Set in a future where people can purchase a wide range of useful robots commercially, this story is an account of a young boy’s first sexual encounter with his, and as an escape into the wild possibilities our future may bring.
Topics: Anal Sex, DP, Sci-Fi, Twink, Robot
An experiment gone wrong, endangers a whole facility. Before the incident, a young teenager fools around with a security guard in the lavatory...
Topics: Sci-Fi
Have you ever been in a place that was very quiet? So quiet that when you hold your breath the only sound you hear is the beating of you heart?
Topics: Sci-Fi, Oral & Blowjobs
Bryce gets milked and Gareth gets a new attitude.
Topics: Sci-Fi