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.

The sexoids

By rubber collector 19 Mar 2017

Gay young man becomes sex maniac after being exposed to alien spores from seed pod

7.9 (23) 5004 5 Min Comments

Invasion of the Vorlons

By rubber collector 6 Mar 2017

alien beings from another dimension have come to planet earth to taken over all rubberized humanoids to convert them into sexdroids

7.6 (14) 3259 5 Min Comments

Paranormal Jacktivities: Gozer Chair

By Doom Guy 13 Feb 2017

Demon, Multiple hands, Hypno, Submission, facefuck, assfuck

9.3 (34) 3930 8 Min Comments

GEM: Genetically Enhanced Male

By Balletboy 17 Jan 2017

Twins Jake and Aiden are hired to go to a medical testing center and get infected with a disease and monitored. It does not go the way they expected it to

8.6 (100) 7579 16 Min Comments

The Rubberdroid Invasion

By rubber collector 25 Nov 2016

rubbery alien beings have landed on earth to collect humans for rubberdroid conversion they have taken human form so that can move among the humans on earth. As they abduct their human specimens for breeding and conversion

7.4 (22) 3217 5 Min Comments

Opposites Attract (ch. 10)

By wabuck 31 Oct 2016

Joe confesses to Craig about his encounter with Lawrence, but leaves out important details. Their rlationship gets deeper as Craig introduces Joe to his mother.

8.2 (11) 536 9 Min Comments

The rubber invasion (ch. 2)

By rubber collector 22 Oct 2016

rubber aliens are ready for phase 2

6.6 (17) 2092 3 Min Comments

Pandemic of men (ch. 12)

By Pen-ave haven 18 Aug 2016

The dress, the humiliation, all of it just a sick dream. Being alone i threw my phone and whatever else was in reach in frustration and anger, by the time i was finished the room was a reck and i was coughing into a fit. I slid to the floor coughing for a while until it came under control.

6.8 (13) 574 5 Min Comments

The New Android

By Cinaedus 9 Aug 2016

A Commander in the future has to train a new Android. Little does he know that the Android has emotions, and has already fallen for him.

8.8 (61) 4420 6 Min Comments

Guy with two cocks

By Mighty Mouth 28 Jul 2016

Would you enjoy this opportunity?

7.9 (39) 6806 4 Min Comments

Jons American Indian (ch. 3)

By jon martin 1 Jun 2016

Jons casual encounter has turned into a mind bending time travel trip.

7.7 (38) 1752 2 Min Comments

My roommate is a gay neanderthal

By Kevin's Path 19 Apr 2016

I discovered they were the crowning apex of gay evolution. My roommate Garin was going to rock the world of anthropology when I exhibited him at the conference!

7.7 (58) 6557 38 Min Comments

Viral Enhancement (ch. 25)

By ESE 2 Mar 2016

Diego looks for new solutions. Alex deals with his new situation. Daniel copes with symptoms of EV21.

8.8 (9) 1423 13 Min Comments

Doom Guy vs Hell

By Doom Guy 2 Feb 2016

The protagonist from the popular PC game finds a level he wasn't expecting it the midst of brutally murdering the armies of hell. Tentacles. Satan.

8.5 (44) 5444 9 Min Comments

Who are you?

By Tommy 11 Jan 2016

Three boys in a mysterious room together and they've all lost their identities. What could possibly happen?

8.3 (28) 2047 21 Min Comments

Borg XXX

By Gabriel 8 Nov 2015

Two formerly assimilated friends from the Starship Enterprise suddenly find themselves un-assimilated from the Borg collective, on a damaged Borg cubed, and decide to take advantage of it

8.9 (48) 4287 17 Min Comments

Bored and boarded - from the terracorp chronicles

By Chad 28 Sep 2015

A young member of the TerraCorp Security Corps blows off a little steam, and a big cock, before shipping out, getting boarded, in multiple ways, and discovering some very interesting, and hard, cargo.

9.0 (71) 3209 38 Min Comments

Finding my way - The Terracorp Chronicles

By Chad 9 Sep 2015

A young man finds out the joy that cock can bring but it's not an easy road.

9.2 (58) 2080 23 Min Comments

27 DAYS - FROM THE TERRACORP CHRONICLES

By Chad 7 Sep 2015

One of the last boys on Earth figures out that his future may involve cocks.

8.6 (69) 7563 27 Min Comments

Interstellar (ch. 10)

By Chad 26 Aug 2015

I become part of the family that is the Phoenix and all the cock and cum that comes along with it.

9.1 (70) 1799 15 Min Comments

Self Indulgence

By Anthony Simpson 6 Jun 2015

One night, after his usual train session with himself, Diego (able to replicate himself and disintegrate these copies) decides to delve a bit deeper in the fascination of one's self.

7.6 (23) 1354 6 Min Comments

The Journal

By Paithan 31 May 2015

Gay Dude enters the twilight zone... Meets someone else... wouldn't you know it, he's a homophobe.

8.0 (45) 1899 20 Min Comments

The Escapee (ch. 4)

By Thoreau 27 Mar 2015

Kimani Goes Back to the Hospital What for this time?

7.7 (12) 262 17 Min Comments

Lost Parts (ch. 4)

By Tom L. 13 Feb 2015

I hope those four narratives have given you some idea of the work Bullies, Inc. does. Yes, my methods are very unconventional and fall into in a grey area outside of society's norm, but I have found there is always a need for my type of service.

8.5 (36) 9105 95 Min Comments

Manhood Mania

By amu23m1 25 Jan 2015

"Manhood Mania, the worlds first Virtual Reality game equipped with the ability to the full extent of sexual intercourse." Watch David and Jason explore all this games has to offer.

7.4 (21) 2408 11 Min Comments

Paranormal Lewd and Sexual Misconduct Department

By JakeSB 19 Jan 2015

In a world where the paranormal is a part of reality a department of government agents investigates when paranormal incidents combine with raunchy sex.

8.5 (16) 1454 14 Min Comments

Station (ch. 9)

By Simon Traum 30 Dec 2014

The concluding chapter, and the final piece of the puzzle.

9.2 (12) 413 15 Min Comments

To Space!

By Petr-Johan 28 Nov 2014

Two Young men give their lives to being astronauts and find that space is further away than it lookes

9.2 (34) 1280 23 Min Comments

Eight

By Petr-Johan 20 Nov 2014

A Man Tries An Experiment in Sexual Regeneration

8.2 (44) 4672 10 Min Comments

A Destiny of Crystal

By Sam Lea 8 Sep 2014

He passed a reflective surface and paused to look. He had pale skin, which was almost, but not quite translucent, and flaxen, shoulder length hair that had a slight wave to it. Strangest of all were his eyes, which were slitted like a cat's and bronze, and his ears, not quite pointed enough to be elven, but not quite round enough to be human.

7.9 (27) 3088 15 Min Comments