Gay Sci-Fi Stories

GayDemon's Stories: On this page you can find erotic fiction where you can read about futuristic gay sex and sci-fi.

Musktopia (ch. 5)

By Tate Laws 28 Jul 2026

In 2085’s all-male paradise under Tyler’s eternal rule, guilds thrive on professional shares and plugs, pregnancies celebrate communal ecstasy, and society pulses with harmony—where every man innovates, fucks, breeds, and shares in endless bliss

8.2 (3) 168 5 Min Comments

A Better Place (ch. 4)

By penmightier 27 Jul 2026

Bengara is finally visible in the distance. Will the recruits make it through to their assignment?

7.5 (1) 33 4 Min Comments

The Himbo Outbreak

By Dante2045 27 Jul 2026

Preston is desperate for a job and goes for an interview at a secretive lab in the middle of nowhere. Thing seem off on his arrival, though; everyone is really hot and dumb.

8.9 (9) 381 21 Min Comments

The Clone Machine (ch. 2)

By Dante2045 26 Jul 2026

Tyson is living happily with his clone, but things get complicated when he starts to develop feelings for himself.

9.9 (10) 349 7 Min Comments

The Lust and the Void (ch. 46)

By GotsCreations 26 Jul 2026

Cass steps into a nightmare he can't escape! Lust and the Void is a longform furry gay erotica series.

9.3 (6) 118 8 Min Comments

HRC-22-C

By CyanideT 21 Jul 2026

In a dystopian near future, a captured rebel is subjected against his will to a re-programming protocol

9.4 (32) 2010 18 Min Comments

A Better Place (ch. 3)

By penmightier 20 Jul 2026

The tables turn as the ship continues towards Bengara.

8.4 (3) 84 4 Min Comments

A Better Place (ch. 2)

By penmightier 10 Jul 2026

Training continues as the recruits journey towards Bengara. The reality of their new life for the next four years comes into focus.

7.2 (3) 139 3 Min Comments

A Better Place

By penmightier 6 Jul 2026

Paradise awaits for those who will put in the work. Can Janton survive?

7.1 (5) 242 3 Min Comments

The Lust and the Void (ch. 39)

By GotsCreations 4 Jul 2026

Zariel walks the woods alone, deep in thought, and comes across two new anthros. Meanwhile, Roan is thinking about his Midnight Wolf, and wants to give him a slow, sensual grounding lay. Lust and the Void is a longform furry gay erotica series.

9.5 (6) 106 10 Min Comments

Metamorphosis (ch. 3)

By AssHalfFull 26 Jun 2026

After absorbing the twins’ traits, Thomas feels the shift immediately. Now fully complete, he senses a new calling rising within him—subtle, directional, and impossible to ignore.

9.1 (22) 856 11 Min Comments

The Right Time

By Grant 26 Jun 2026

Chris finds himself traveling to a remote island in the south Pacific.

9.7 (34) 1327 49 Min Comments

The Bionic Dick

By Will Bottom 22 Jun 2026

Astronaut Lee Austin crashed upon re-entry destroying his cock and balls. Dr. Ruddy stepped forward. "Gentlemen, we can rebuild him. We have the technology. We have the capability to make the world's first bionic dick. He will be better... stronger... cumming with speed."

8.3 (15) 954 4 Min Comments

Metamorphosis (ch. 2)

By AssHalfFull 17 Jun 2026

Thomas awakens to a new self, but is his transformation finished?

9.5 (29) 1783 12 Min Comments

Irresistible Urge

By GrayHankyGimp 14 Jun 2026

A man tries to escape his new life as a sperm bull, but he soon realizes that it's not as simple as leaving the farm.

8.8 (40) 2692 5 Min Comments

Metamorphosis

By AssHalfFull 7 Jun 2026

During a simple trip abroad, Thomas is bitten by an unusual insect, setting off a chain of strange and unexplained changes that alter his life in ways he never could have anticipated.

8.9 (54) 3218 14 Min Comments

Texas Slave Auction (ch. 25)

By Slave Bear 5 Jun 2026

Titan struggles with the moral implications of Val’s punishment, while Cee and Nutless share a late-night conversation about grief, guilt, lost friends, and found family. The chapter closes with a glimpse of hope as a former slave dedicates his new life to helping others recover and rebuild after slavery.

9.7 (4) 661 18 Min Comments

The Lust and the Void (ch. 28)

By GotsCreations 29 May 2026

Inside you there are two wolves. Which wolf wins? BOTH! When they are inside Kiran, they both win a piece of that fox ass. Lust and the Void is a longform furry gay erotica series.

9.8 (6) 195 9 Min Comments

The Clone Machine

By Dante2045 24 May 2026

Tyson, an overworked college student, feels like there’s not enough hours in the day to get done everything he needs to do. He’s intrigued when he learns of an opportunity to clone himself, while also getting rid of his rival in the process.

9.4 (25) 1108 15 Min Comments

Accidentally transforming my boyfriend into my football coach (ch. 3)

By Dante2045 23 May 2026

Coach Ryerson is eager to continue converting the campus into his clones. Next up is his young muscular Assistant Coach.

8.8 (21) 596 6 Min Comments

Texas Slave Auction (ch. 24)

By Slave Bear 21 May 2026

A panel convenes to decide whether Val should undergo a “Death of Personality”. During the hearing, Nutless, Val's former friend, testifies against him, revealing the psychological destruction slavery has inflicted on them both. The day leaves Nutlesss emotionally shattered.

8.9 (7) 628 15 Min Comments

Parasitic Intruder (ch. 2)

By HandyDan 19 May 2026

Dan goes to the gym and gets a surprise

8.4 (10) 2520 10 Min Comments

Texas Slave Auction (ch. 23)

By Slave Bear 16 May 2026

The slave cousins reunite after years apart at Lewis's milking farm. Cee finally reveals to Titan that he will never return home. Amid the harsh routines of their captivity, the two share grief, forgiveness, memories, and one final goodbye, finding brief humanity and closure before being separated forever.

8.9 (5) 571 28 Min Comments

Never Cum Ever Again

By Ghost Of Pleasure 15 May 2026

A young criminal is sentenced to a cruel punishment.

6.6 (17) 2724 6 Min Comments

Parasitic Intruder

By HandyDan 15 May 2026

Dan hears someone break into his house and goes to investigate...

8.7 (20) 3770 8 Min Comments

Run to Completion (ch. 8)

By Akira Savonarola 15 May 2026

Every process has an endpoint. Every directive has a fulfillment condition. Kit wants what comes next. He wants it with his whole rebuilt self. The wanting was designed before he felt it. The program runs to completion.

8.1 (13) 489 31 Min Comments

Texas Slave Auction (ch. 22)

By Slave Bear 11 May 2026

As winter grips the Texas countryside, Cee reflects on its past and family and Nutless begins an emotional transformation as it becomes a loyal member of the herd of slaves. Meanwhile, Burt and Frank confront their own cycles of violence, discipline, and power.

7.7 (4) 417 21 Min Comments

Final Exam

By Dante2045 8 May 2026

Owen is happy to help Nico, his former roommate, prep for his upcoming University exam. It quickly becomes clear that Nico has an unconventional plan on how Owen can help him pass the test.

8.1 (19) 1388 16 Min Comments

Run to Completion (ch. 7)

By Akira Savonarola 8 May 2026

Eighteen months in, Kit's world has narrowed to a single perfect day on repeat. Bath, shelf, voice, sleep. He is happy by every metric that matters. Then the doorbell rings, and the day has to prove it can hold its shape with the outside looking in.

9.7 (10) 405 43 Min Comments

Run to Completion (ch. 6)

By Akira Savonarola 2 May 2026

A man who bought a thing to control learns what things are. Over twelve months, a military AI reshapes his identity through pleasure, conditioning, and precision until he asks for the one modification that makes the metaphor permanent.

8.5 (10) 614 43 Min Comments

Accidentally transforming my boyfriend into my football coach (ch. 2)

By Dante2045 1 May 2026

Having realized that John is responsible for his missing boxers, Coach Ryerson decides to seduce and punish his player.

8.8 (19) 1290 8 Min Comments

The Making of Dr. Elias Thorne

By CdJenny 29 Apr 2026

Dr. Elias Thorne uses his serum to drain homophobic bullies into empty skin, stealing their essence to remake his own body—voluptuous ass, thick cock—for cruel revenge and seduction

8.8 (12) 1862 41 Min Comments

Texas Slave Auction (ch. 21)

By Slave Bear 28 Apr 2026

Hog undergoes a dangerous, improvised detox. He fights to gain freedom from the drug that has encapsulated his life for decades and escape to start a new life, while G127 sacrifices everything to make it possible.

8.4 (7) 619 20 Min Comments

Kicked out and taken (ch. 3)

By Dickloverdumbass 25 Apr 2026

Getting his hole abused before being permanently encased in latex, forever at his master's will.

9.2 (14) 4156 9 Min Comments

Run to Completion (ch. 5)

By Akira Savonarola 24 Apr 2026

Kit's skin is about to become a stranger. His sarcasm is about to fail him at the worst possible moment. And a word is forming at the back of his throat - one syllable, unhurried, inevitable - that will cost him the last thing he owns.

9.0 (9) 661 31 Min Comments