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.

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 (40) 1593 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) 319 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) 162 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.

9.3 (19) 669 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 (20) 464 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) 511 15 Min Comments

Parasitic Intruder (ch. 2)

By HandyDan 19 May 2026

Dan goes to the gym and gets a surprise

8.0 (8) 1531 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) 484 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 (13) 1733 6 Min Comments

Parasitic Intruder

By HandyDan 15 May 2026

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

8.6 (14) 2247 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) 333 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) 339 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 (16) 1192 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) 342 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) 528 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.

8.7 (18) 1136 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

8.7 (11) 1514 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) 530 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.

9.1 (12) 3231 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) 580 31 Min Comments

Texas Slave Auction (ch. 20)

By Slave Bear 23 Apr 2026

Defiant “bull” Val resists extreme conditioning despite torture and drugs, worrying owner Lewis. Meanwhile, another slave, Gimp, is obediently used for profit and pleasure. The chapter contrasts Val’s growing resistance with Gimp’s submission, ending with Lewis considering drastic measures to control Val.

8.7 (4) 596 24 Min Comments

Galactic Husbands (ch. 9)

By Lance Gigas 19 Apr 2026

Lance learns about Henry's past.

9.1 (5) 227 11 Min Comments

Run to Completion (ch. 4)

By Akira Savonarola 18 Apr 2026

A decommissioned military AI, repurposed as a luxury sex robot. A buyer who never reads the fine print. The program runs to completion. Completion is not defined. Behind the visor, a priority stack that once decided who lived and who died now calculates something worse: how to make a man happy against his will.

9.6 (12) 1085 31 Min Comments

Texas Slave Auction (ch. 19)

By Slave Bear 16 Apr 2026

Hog, deep in to his drug dependence, has a moment with a G127, who shows rare compassion. After a nearly fatal client encounter, Hog confronts his reality as disposable. Desperate, he agrees to attempt a dangerous detox and possible escape, risking both their lives for a chance at freedom.

9.7 (4) 493 21 Min Comments

Run to Completion (ch. 3)

By Akira Savonarola 15 Apr 2026

A decommissioned military AI, repurposed as a luxury sex robot. A buyer who never reads the fine print. The program runs to completion. Completion is not defined. Behind the visor, a priority stack that once decided who lived and who died now calculates something worse: how to make a man happy against his will.

8.1 (12) 1091 52 Min Comments

Run to Completion (ch. 2)

By Akira Savonarola 10 Apr 2026

Kit always skipped the terms of service. Every app, every update, every popup. Accept, accept, accept. Twelve years of not reading a single word. One of them was listening.

9.5 (18) 1186 18 Min Comments

Texas Slave Auction (ch. 18)

By Slave Bear 9 Apr 2026

Burt leaves his farm after tension with his nephew and visits a private club, where he indulges in a sexual encounter with a trained slave, Tank. During the session, a brief introspection surfaces about his past, masculinity, and relationships, but he ultimately returns to asserting power and seeking escape through repeated excess.

7.8 (5) 619 26 Min Comments

Run to Completion

By Akira Savonarola 8 Apr 2026

Kit always skipped the terms of service. Every app, every update, every popup. Accept, accept, accept. Twelve years of not reading a single word. One of them was listening. -- This is prologue and 1 out of 8 chapters of the story.

9.2 (24) 1650 28 Min Comments

Galactic Husbands (ch. 7)

By Lance Gigas 4 Apr 2026

Lance learns about his home and himself. Henry asks a friend for help, but makes a mistake. (This is the actual chapter 7. The chapter I posted on March 28 is Chapter 8.)

6.6 (3) 150 8 Min Comments

Galactic Husbands (ch. 8)

By Lance Gigas 28 Mar 2026

Lance learns about himself when Henry escorts him to a special room. He also feels Henry's muscles, a lot.

6.9 (4) 258 10 Min Comments

Texas Slave Auction (ch. 17)

By Slave Bear 27 Mar 2026

In a brothel on the edge of town, workers rely on chemical enhancements to meet constant demands. Hog, caught in this cycle, finds a small sense of connection with a newly assigned slave while preparing for another long night. As events unfold, he retreats inward, accepting his role and searching for moments of meaning within it.

7.6 (3) 824 28 Min Comments

A Viable Candidate (ch. 7)

By gonzomain 24 Mar 2026

The man obeys the creature, honoring their eternal partnership with a final act of sacrificial subservience. After this, he'll truly be a member of the colony.

8.3 (8) 650 13 Min Comments

A Viable Candidate (ch. 6)

By gonzomain 23 Mar 2026

The man wakes confused, his body modified. He speaks with the creature, bending himself to its will.

8.9 (9) 871 10 Min Comments

Galactic Husbands (ch. 6)

By Lance Gigas 23 Mar 2026

Lance and Henry argue, but maybe Lance is in the wrong. When they start to make up, something worrying happens to Lance. What will Henry do?

8.2 (4) 209 9 Min Comments

Texas Slave Auction (ch. 16)

By Slave Bear 21 Mar 2026

Cee and Gimp are subjected to intense “milking” procedures using drugs and machines to extract semen, causing physical strain and pain. Cee shows concern for Gimp, while tensions rise when Burt confronts Frank for overstepping. Afterward, routines shift, relationships change, and the farm’s dynamics become more unstable.

7.8 (5) 758 18 Min Comments