Erotic Romance: Science Fiction

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Big Balls and Brass Knuckles (MM)
A dedicated detective meets a rich inventor who wants to play cop. Even in the future, money can get you everything… Detective Brett Knucks is trying to find a killer. The last thing he needs is to be MORE...
Legend of Sulpa (MFMM)
[Siren Menage Everlasting: Erotic Romance, Romantic Suspense, Reverse Harem, Science Fiction/Fantasy, MFMM, HEA] Tamika Greenway is no stranger to verbal and physical abuse, but instead of confronting prejud MORE...
Beauty and His Forever (MM)
  [Siren Publishing: The Stormy Glenn ManLove Collection: Erotic Romance, Alternative, Science Fiction, Romantic Suspense, Fantasy, MM] Seer Jynx K'Vada was settling in to being prince of Saturn MORE...
And God Belched (MM)
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In this riotously funny romantic adventure, Randy and his younger brother Craig find themselves in a different universe, on a strange planet, desperately searching for Milo, a handsome stranger in imminent dang MORE...
Martial Law
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Mars has become a dangerous world. Too many have been lost; decisive action must be taken. NASA faces a difficult choice. Leave Mars alone or risk more lives to figure out why so many crew have gone missi MORE...
The Secret Language of Flowers
Comhghall Harrington is a bookseller who is infatuated with his regular customer, Lady Laure Charmante. Due to their radically different social stations as well as Laure’s marital status, Comhghall and La MORE...
Amongst the Stars (MFMM)
[Siren Menage Everlasting: Erotic Romance, Menage, Romantic Suspense, Futuristic, Science Fiction/Fantasy, Aliens, Reverse Harem, MFMM, HEA] Elysia Duncan is carried away from her hometown in California afte MORE...
Invasion of the Butt Snatchers (MMM)
The aliens settled in Africa and Europe, what with their love of giraffes and Alpine skiing and all, and forced the previous inhabitants to move out. But when two of said inhabitants meet one of said aliens, pl MORE...
Cosmic (MMF)
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Can three hearts break harder than two? While on a mission, the last thing the crew of the Sovereignty expects is to gain an addition crew-member, but when an unknown assailant attacks, Axel has no choice bu MORE...
Bred by Her Alien Abductor (MF)
Ella spends her days studying rocks. It's not glamorous work, and her funding is next to nothing, but she hopes to prove life exists beyond Earth. What she doesn't count on is being used as a breeding v MORE...
Dark (MF)
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For Princess Veracity, it was love at first sight. Unfortunately, Dark has never given her any indication that he returns her affection. Even more unfortunately, she's betrothed to marry a man she's qui MORE...
Love in Chaos (MF)
After the world’s population is nearly wiped out, Maggie has been able to protect herself—until now. Captured in the dead of night, she is offered to a man. A leader. Only this man isn’t a str MORE...
The Drunk Monkeys Collection, Volume 2 (MFM)
[Siren Menage Everlasting: Erotic Romance, Futuristic, Sci-Fi,  Menage a Trois, Sex Toys, MFM, HEA] Grease Monkey Riots? Plague? Armageddon? Child’s play for…the Drunk Monkeys. Dolce MORE...
Soft Gold (MMF)
Three hearts can equal one great love... Hera, the goddess of mothering and childbirth, wants more than to be Zeus’s throwaway partner. She wants a lover and a hot romance she can call her own, but she MORE...
Xandore's Naughty Princess (MF)
The planet is counting on Princess Ellegra and Prince Xandore. Their union will assure Procalus is welcomed into the Planetary Alliance. Princess Ellegra is smart and beautiful and won’t take no for an MORE...
The Owned Collection, Volume 2 (MM)
[Siren Everlasting Classic ManLove: Erotic Romance, Alternative, Sci-Fi, BDSM, Public Exhibition, Spanking, Sex Toys MM, HEA] In Bound by Defiance, Alexis Bedlam has been chosen. Selected by the annual lotte MORE...
The Owned Collection, Volume 1 (MM)
[Siren Everlasting Classic ManLove: Erotic Romance, Alternative, Sci-Fi, BDSM, MM, HEA] In Bound by Pleasure, only pleasure could destroy his pain… When an alien race saves humanity in exchange for a MORE...
Claiming Mia (MF)
[Siren Classic BDSM: Erotic Romance, Contemporary, Science Fiction, BDSM, MF, HEA] Mia Ember is suffocating in her life. She has a good job and provides well for herself, but her personal life is a mess. She MORE...
About Dene (MMM)
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[Siren Menage Amour ManLove: Erotic Romance, Alternative, Paranormal, Shape-shifters, Fantasy, MMM, HEA] Tamid Farsi couldn’t believe it! He had another mate! A very delicious man who preferred spinach MORE...
Rescue Mission (MMF) (MM) (FF)
Mars is a long way from being a dead world. After all contact is lost with three previous missions, NASA turns to the US military in an attempt to prepare a crew for whatever dangers lurk above, on, or below MORE...
Deadly Connections
Nicarr’s getting married—and about time too, as his wild ways have already come close to causing an intergalactic incident or two, but this isn’t the kind of marriage he’d hoped for and MORE...
Abducted for Pleasure (MF)
When life hits a dead end, it’s time to reach for the stars. Which is exactly what’s happened to Naomi. Fed up and stuck in a rut, she finds herself magically transported to another time and plac MORE...
Zaxe's Rule (MF)
A professional assassin, Zaxe’s job is to kill his target—Helldrick—and get out. This final mission will repay his debt to the king of Gravas and allow him to finally claim his freedom. The jo MORE...
Visions of Iotan (MM)
When Cillian’s daughter accidentally poisons a bison-sized alien child, he goes to prison. But intervention by another alien sends him and his family on a journey to a nearby solar system. Along with a gr MORE...
There Will Be Aliens (MM)
Carlo Russo is having the worst day. Not only has he lost his job, caught his boyfriend cheating, and had one too many shots with his best friend Grace, now he’s seeing aliens too. Big, black, tail-equipp MORE...
Celestial Rebel (MMF)
Taking the pilot’s position on a prisoner transport ship was supposed to help take Celeste’s mind off the anniversary of losing her twin sister, Sasha, to the Black Zone. The prisoners escaping and MORE...
My Tether (MF)
A virus has ravaged the human population. Neriah Warren lives within the Amish community but not even her faith can protect the people she loves. When her mother shows signs of the fatal sickness, there is n MORE...
1100 titles in Erotic Romance: Science Fiction