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.

Chem Yield

By BullBreaker 1 Jan 2026

In a scent-saturated dystopia, teen Kael's body craves enslavement. Pheromones throb flesh into slick betrayal—dread twists to dripping ache, guilt floods as euphoria surges, every leak a filthy surrender to owned bliss.

7.5 (15) 1110 16 Min Comments

Study Report: Human Slave Training Project

By unplanted 30 Dec 2025

In a dystopian world, slavery is part of everyday life. This is an illegally obtained study report on a scientific project researching sex slaves and their training. It shows the terrible depths of the slave system.

8.6 (27) 2985 7 Min Comments

Darks & Pales (ch. 14)

By Hunknown 26 Dec 2025

Jason spends some time reading the Sacred Tomes, and his research leads to a revelation that leaves him breathless. Unbeknownst to him, Deimos’s former helper spies on him; but when he goes to report back to Vesper, he realizes just how careless he was to ally himself with such an evil Dark.

9.1 (11) 239 18 Min Comments

New World Rush (ch. 2)

By BullBreaker 24 Dec 2025

Sweat-soaked mohawks pierce the haze, nipple rings glint like chains binding your will. Rake's heavy cock swings low, demanding your mouth—salty, throbbing, inescapable. Collar snaps cold on your neck, lockcage crushes your ache, Rush burns obedience into veins. Vulnerability throbs raw, power owns every gasp. No turning back—step into his stride.

9.8 (6) 1488 6 Min Comments

New World Rush

By BullBreaker 20 Dec 2025

In post-apocalyptic *Dust & Flesh*, Dust Raiders roam wastes, trading slaves, Rush-fueled gay sex, and brutal domination. Bodies are currency in a world ruled by Masters and Thralls—raw survival, shame, aggression, and unyielding hierarchies of flesh and power.

8.9 (9) 2843 4 Min Comments

Darks & Pales (ch. 13)

By Hunknown 19 Dec 2025

After Laudon’s latest revelations, Jason gains a deeper understanding of Eclipse and its people — especially those men who, like Aric, upheld the ideal of free love for centuries, defying prejudice and moral restraint. Yet those same prejudices are about to strike Jason with full force…

9.0 (12) 264 20 Min Comments

Serum 3379 (ch. 7)

By ShawnTVWrites 17 Dec 2025

Julian and Monty discover the sex of their baby and then...go on a picnic and a picnic only. Nothing else happens ;)

9.8 (13) 1310 10 Min Comments

Asset Protection: A Hulkling & Wiccan Tale

By Boy Mercury X 13 Dec 2025

"He’s just a baby. How hard can it be?" Famous last words. When Hulkling and Wiccan take on a secret mission to return a lost prince, they trade the throne room for a cramped cockpit and deep-space danger. But along the way, the adrenaline awakens a primal change—and the need to breed. (A Marvel U fan fic.)

9.8 (18) 1324 34 Min Comments

Darks & Pales (ch. 12)

By Hunknown 12 Dec 2025

Jason is finally ready to submit to Aric, but he has no idea what the “something special” Aric once promised truly is. Shaken to the core by the experience, he seeks solace in the Temple, where even greater surprises await him.

9.2 (12) 462 20 Min Comments

Slave Rebellion (ch. 2)

By Derekhello 7 Dec 2025

This is a sequel to Civic Experiment and Sampons Slavery Laws and continues the story of Tyler and Zac. Tyler an escaped slave is going to try and change the world back. A world he helped change and put an end to slavery and all the humiliation, once and for all.

9.5 (11) 710 34 Min Comments

Darks & Pales (ch. 11)

By Hunknown 5 Dec 2025

Vesper, the most short-tempered and narrow-minded of the Darks, threatens Jason’s life over his bond with Deimos. Young Helios steps in to defend him, and pays the price for his courage. Will this ordeal win Deimos and Jason a new ally in their quest for free love?

9.3 (14) 318 18 Min Comments

Slave Rebellion

By Derekhello 5 Dec 2025

Thie is a sequel to Civic Experiment and Sampons Slavery Laws and continues the story of Tyler and Zac. Tyler an escaped slave is going to try and change the world back. A world he helped change and put an end to slavery and all the humiliation, once and for all.

9.2 (12) 2205 33 Min Comments

Serum 3379 (ch. 6)

By ShawnTVWrites 2 Dec 2025

Julian tells Monty he's pregnant and he takes it...well.

8.8 (14) 1491 13 Min Comments

Darks & Pales (ch. 10)

By Hunknown 28 Nov 2025

Once more, Jason breaks the rules and ventures into the forbidden Temple, uncovering more unsettling and amazing truths. A storm with Archon breaks out, but the chilling gusts slowly turn into a fiery blaze.

9.2 (12) 332 20 Min Comments

The Prince

By Damon Rozen 28 Nov 2025

In Avalon’s Grand Palace, Prince Johnnie and activist Harry prepare for a wedding that symbolizes love, equality, and progress. Amid dazzling holograms and futuristic traditions, tragedy strikes when Queen Sharon suffers a fatal heart attack. Grief reshapes celebration into mourning, yet Harry’s unexpected pregnancy offers hope—promising renewal, c

4.1 (4) 170 25 Min Comments

The Jock Showers (ch. 4)

By gonzomain 27 Nov 2025

Tyson meets one of his coworkers and discovers that he's a prisoner.

8.0 (13) 1591 8 Min Comments

The Jock Showers (ch. 3)

By gonzomain 26 Nov 2025

Tyson's shift continues as he's humiliated and aroused by gymbro smells and tastes.

8.8 (18) 2323 12 Min Comments

Cursed (ch. 11)

By Jesse Christian 24 Nov 2025

Jackson discovers a whole new side of the curse that threatens to change his life forever.

9.9 (36) 3398 12 Min Comments

Darks & Pales (ch. 9)

By Hunknown 21 Nov 2025

Jason confides in Stellan about losing his virginity to Deimos. Aroused and insecure, Stellan begs Jason to take his own virginity, but Jason has a better idea: with an erotic role-play, he draws Aric in; the powerful janitor initiates Stellan to the joys of man-sex... in his very special way.

9.2 (12) 428 22 Min Comments

Darks & Pales (ch. 8)

By Hunknown 14 Nov 2025

Knowing the truth about Boba-Maiii gives to Jason a sense of freedom and self-determination, but also shakes his beliefs to their roots. Seeking solace, he turns to Deimos – strong, tender, irresistible – and offers him his most intimate gift. In that loving union, they understand that freedom begins where desire is no longer hidden.

9.3 (14) 346 21 Min Comments

Darks & Pales (ch. 7)

By Hunknown 7 Nov 2025

Jason yields to Aric’s hungry passion, his teen fantasies melting into intoxicating reality until pleasure overtakes him completely. Later, still shaken and lost in thought, he dares to enter the Temple, where he’s confronted with a shattering truth about Boba-Maiii.

9.2 (16) 394 19 Min Comments

A Boy's Anal Cybertronic Affair (ch. 5)

By Mr.X 6 Nov 2025

Well, the Twinks are in the Slings in the Lab, Ready for Xavier and Daddy Fisting. An incredible genetic and sexual ability is discovered in Hot Femboy Bobby! After it is revealed, the next step is to take Xavier home with them to the Six-Floor- Boy- Bonding Dungeon (SFBBD)

9.3 (27) 1486 19 Min Comments

A Boy's Anal Cybertronic Affair (ch. 4)

By Mr.X 3 Nov 2025

Ty gets back to the college Twink sex apartment for Gang Bang Spit Roasting and triple cock penetrations; followed by Ballroom fisting boys lined up. Bobby and Ty are in Love and crazy for each other's cum and piss. Soon they get to the Lab for the Paternity reveal... AI, wow!

9.7 (26) 1908 32 Min Comments

A Boy's Anal Cybertronic Affair (ch. 3)

By Mr.X 2 Nov 2025

Ty gets tentacle deep tongue rimmed over five feet deep by Xavier and his Mimetic Poly Silicone being; Ty finally loses his anal virginity to Xavier and his mammoth penis. The orgasms and ejaculations are magnificent, coating the BDSM theatre in boy-cum explosion. A curiosity of Mitchell's familiarity with Booby is revealed. Ty gang fucked by room

9.9 (37) 1857 20 Min Comments

A Boy's Anal Cybertronic Affair (ch. 2)

By Mr.X 1 Nov 2025

Dedicated to Bob & all the best fans and readers! Ty and Bobby have incredible first-time sex. A hilarious thing happens, but for the better, as the eight boys erupt into a great circle jerk all over Sora. A week of group sex. Ty keeps his anal virginity till his first shift at the CAME Institute. You will have to read to see what it is all about.

9.9 (40) 1985 26 Min Comments

Darks & Pales (ch. 6)

By Hunknown 31 Oct 2025

Jason’s first glimpse of the Temple leaves him unimpressed. A talk with the Guardian Archon unveils the story of Adam and Eve. Later, seeking bolder truths, Jason hits on the studly janitor Aric, who makes him take a walk on the wild side of man-love.

9.2 (16) 394 22 Min Comments

Darks & Pales (ch. 5)

By Hunknown 24 Oct 2025

Through a conversation with the Guardian Archon, Jason comes to realize that Boba-Maiii’s prohibition against wasting a man’s seed isn’t all that strict after all. The revelation stirs something in him — a cautious urge to explore his own desires, beginning with his handsome roommate, Stellan.

9.2 (15) 407 21 Min Comments

Darks & Pales (ch. 4)

By Hunknown 17 Oct 2025

Jason learns more about the wilderness surrounding Eclipse. Deimos ventures outside and is wounded by a monstrous creature. Something deep is blossoming between Jason and Deimos, and this leads to a sensual mutual 'helping', making Jason experience his first orgasm.

9.1 (16) 413 23 Min Comments

Serum 3379 (ch. 5)

By ShawnTVWrites 15 Oct 2025

Julian and Monty have sex in the gym showers.

9.7 (16) 2263 10 Min Comments

The Jock Showers (ch. 2)

By gonzomain 12 Oct 2025

Tyson shows up for his first day of work and gets a taste of what his position entails.

9.0 (27) 2981 13 Min Comments

The Jock Showers

By gonzomain 11 Oct 2025

A new disease puts gym-going men at risk. The treatment method, pioneered by a shady biotech conglomerate, is... unorthodox, to say the least. Can horny gay men the world over save mankind by licking their sweaty assholes? This story says: maybe!

8.3 (25) 4722 11 Min Comments

A Viable Candidate (ch. 4)

By gonzomain 10 Oct 2025

The man is thrust into a new sexual experiment which will test the resilience of his body and mind.

9.4 (20) 3182 18 Min Comments

Darks & Pales (ch. 3)

By Hunknown 10 Oct 2025

Jason can't stop thinking at Deimos and is unsure about what he feels. Or maybe he doesn't want understand. But after some more 'helping', Deimos and Jason share a sweet and intimate (and quite hot) moment, proving that their friendship is turning into something else.

9.3 (14) 581 20 Min Comments

Serum 3379 (ch. 4)

By ShawnTVWrites 8 Oct 2025

Julian and Monty attend a birthday party before things heat up, then Julian goes in for his 60 day check in.

9.7 (9) 1972 14 Min Comments

A Viable Candidate (ch. 3)

By gonzomain 7 Oct 2025

The man explores more of his biological prison, becoming acquainted with the creature and its own motivations. He learns of his new reality.

9.3 (27) 2783 10 Min Comments