Gay Science Fiction Stories

GayDemon's gay porn library: in this story category you can find erotic Sci-Fi stories involving sex in futuristic settings.

Probed in Space

By GreatBallzNCock 9 Aug 2022

In a far off galaxy in the present, a UFO makes it’s way along many planets and stars. It’s occupants on the other hand do not care for stars or planets. No, these unearthly beggars just want to plant their seed in as many times as they can in any form of crevice they can get their hands on. With a little probing they can’t go wrong.

6.7 (11) 751 2 Min Comments

Penis 92: Welcome to the Cum Farm (ch. 2)

By NineThreeKD 5 Aug 2022

College jock guides a shy, awkward nerd through his first public ejaculation in a mysterious research lab.

9.3 (61) 7152 6 Min Comments

Experiments Straight Guys (ch. 2)

By Jacksonville 3 Aug 2022

After Nolan and his friend return home from the Alien ship there seem not to be able to return to normal life.

8.8 (82) 11816 10 Min Comments

Drone, Inc

By P.J. 29 Jul 2022

Let Fastos the alien take you behind the scenes at DRONE, INC., the galaxy’s hottest manufacturer of realistic sex drones

8.7 (42) 2767 14 Min Comments

The Differing (ch. 3)

By Grant 25 Jul 2022

A continuation of the story about Corbett and Duncan and their search for the meaning behind the relics.

9.8 (39) 1107 90 Min Comments

The Throb-Warehouse

By GreatBallzNCock 20 Jul 2022

When a new global product causes chaos amongst human kind.

7.3 (17) 1900 3 Min Comments

Life Changer

By PCLatex 14 Jul 2022

Jim and Dennis have bought an old house which they plan to renovate. In the process they discover it has a very well equipped 'fetish dungeon' beneath it and, being into latex and bondage themselves, invite their friends -- The Gang -- round to explore it with them. The discovery of a very strange device leads to an unexpected and permanent change for both of them ...

9.0 (54) 5052 14 Min Comments

An Experiment In Control

By PCLatex 10 Jul 2022

Joe's fantasies become real when he has to leave home and moves in with his mentor at university. Short of money, he takes a job in a research lab focussed on mind control ...

8.9 (42) 7462 32 Min Comments

A treatment for my ADHD

By PCLatex 8 Jul 2022

Suffering from ADHD sucks, especially if you are above average intelligence, so when Jason is finally offered a way to beat it, and realise his potential, he opens a door into a whole new life ...

9.3 (35) 4011 73 Min Comments

The Hidden Chateau (ch. 15)

By PCLatex 23 Jun 2022

The Sardar reminds Jack of an anniversary, and a celebration is arranged. Jack and Rod find themselves at the centre of a bondage orgy. With the community now fully integrated, settled and happy, they can look forward to a very happy future.

9.3 (10) 651 18 Min Comments

In the Neon Mist (ch. 2)

By Caleb 26 May 2022

As Will searches for answers, a deadly conspiracy makes itself known: an intensely erotic encounter years in the making, murder, mayhem, and a little ABBA. Surrender yourself, at your own risk, to the Neon Mist.

9.7 (11) 1062 13 Min Comments

When the World Changed (ch. 3)

By slave mark 12 Apr 2022

CHAPTER 3 - It is the year 2070 and it is a whole different world. A drug that cures every disease has now caused my lover and me to be enslaved to the top jock on campus. The slaves are now split up while the Master takes slave paul to a sex shop.

9.6 (122) 2419 13 Min Comments

Freeballing

By Shadesofdesires 9 Apr 2022

And then, there I was, in this world.

7.0 (7) 1632 5 Min Comments

My Step Bro's Literal Crotch Snake

By Thanh_Tran 3 Mar 2022

Step bro comes home from college and shows me his big crotch snake, then we go on an adventure together. This is a true story. : )

6.8 (20) 6291 13 Min Comments

Luke's Big Butt Changes (ch. 2)

By Charlie Walker 1 Mar 2022

Luke's butt continues to go through changes... luckily he has his best bro Sammy to help him out!

9.5 (142) 19403 19 Min Comments

The COVID Cum Dumpster

By Thanh_Tran 1 Mar 2022

After being enlarged by a reverse shrink ray, a giant COVID-19 virus is thirsty for gay cock and needs five brave men to fill it with their hot loads.

7.4 (12) 1752 8 Min Comments

Owen’s Journeys (ch. 2)

By Remodio 21 Feb 2022

The Galaxy’s biggest prostitute, Owen, goes back to the bunk of an alien he hooked up with in a bar. But he find that they’re not alone.

9.4 (39) 2551 8 Min Comments

Sasquatch Love Hunters

By JadedGayKnight 8 Feb 2022

A lone hunter has a strange encounter with a beast in the forest

9.2 (58) 3957 7 Min Comments

My Life On Display

By Picture This As A Caption 29 Dec 2021

Interactive simulation narrative of the inspiring life of Ventress, the titular character.

7.0 (3) 257 1 Min Comments

It's Ok

By BadApple 7 Dec 2021

The world is left to the Bots, known as Users. Two of which, Digit and Flux; explore their physical love relationship. Digit overcoming his physical defected paranoia.

8.2 (7) 277 17 Min Comments

The Modern

By BadApple 27 Nov 2021

Welcome to dystopian world of Modern. Meet Jacks and Terminal, both high ranking soldiers. It's clear Terminal is hot under the collar. Jacks decides to help him with that, regardless of the risks?

8.6 (7) 605 3 Min Comments

Zenon

By Swimboyyy 7 Nov 2021

A Zenon takes over a human body on Earth in order to survive

9.1 (33) 2084 11 Min Comments

Possessed

By PCLatex 3 Nov 2021

A young man moves into his uncle's home, a large Georgian house, but soon learns that all is not quite as it seems.

9.0 (52) 4422 14 Min Comments

Deviant Island (ch. 5)

By PCLatex 31 Oct 2021

The Diaconate is overthrown, now there must be a reckoning and a future ... This concludes this story.

9.3 (25) 1418 11 Min Comments

Seed

By readywankerone 20 Oct 2021

Abducted, naked and alone, a man is raped by his captor. Alone, desperate and hopeless, an alien commits an unforgivable act in order to preserve the continuation of his species. Even if it means he will destroy the human he loved.

9.2 (86) 11969 10 Min Comments

A super costume party (ch. 2)

By Redouant 25 Sep 2021

This is a rewritten version of an older story I wrote. It is halloween and Josh's best friend loves to go to halloween costume parties. Josh hates dressing up and gets forced to deal with the decision wether to not go or to break out of his shame and show off as a superhero.

8.3 (34) 7612 24 Min Comments

Confessions of a Tentacle Monster (ch. 3)

By Not your Greek Hydra 17 Sep 2021

Now the fun and torture begins!

8.9 (47) 6414 8 Min Comments

Alien abduction (ch. 2)

By Desertbiguy 16 Aug 2021

Mark was abducted by aliens. He was one of several gay men who were being used as temporary sex slaves and alien baby incubator. They were fucked by master aliens who were breeders. Mark and Co would give birth a few days later.

8.1 (52) 6287 3 Min Comments

Space Slut

By Joystyx 26 Jul 2021

Liam discovers he can partake in his favorite hobby even when enlisted in the Union's space army. Liam's hobby is taking dick.

9.0 (40) 2611 22 Min Comments

ConOr

By Ty Jordan 10 Jul 2021

In a future society the government tries to eliminate crime by using a controversial medical procedure. Chico becomes a victim of this, but he finds an unlikely friend who can help him.

8.4 (36) 3052 18 Min Comments