Celestial Soul-Mates

by Opal Carew

3.20 · 15 ratings

erotica · futuristic · aliens · science fiction · menage · length-novella · poly · standalone-first · m-f · abduction · bisexual · m-f-m · first-in-series · m-f-f

Celestial Soul-Mates: Similar series

Interstellar Service & Discipline

by Morgan Hawke

4.15 · 99 ratings

bdsm · m-m-f · futuristic · poly · menage · bisexual · science fiction · explicit-plentiful · anal sex · aliens · erotica · alpha male · m-f · double-penetration · slavery · first-in-series · length-long · standalone-first · bondage · non-human-hero

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Aliens Overnight

by Robin L. Rotham

3.67 · 58 ratings

futuristic · science fiction · aliens · alpha male · erotica · poly · bdsm · breeding · bisexual · menage · m-m-f · m-f · length-short · first-in-series · reverse harem · standalone-first · bondage · length-long · explicit-plentiful · queer

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Deep Space Mission Corps

by Tymber Dalton

3.74 · 72 ratings

contemporary · erotica · poly · menage · explicit-plentiful · queer · bisexual · m-m-f · futuristic · reverse harem · alpha male · m-m-m · m-m · bdsm · fantasy · length-short · science fiction · aliens · hurt-comfort · men in uniform

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Cold Mark

by Scarlett Dawn

3.71 · 71 ratings

dystopian · science fiction · aliens · new adult · length-novella · menage · futuristic · poly · love triangle · erotica · suspense · m-f-m · other-man-woman · young adult · humor · reverse harem · possessive hero · standalone-first · contemporary · slavery

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Tales Of The Shareem

by Allyson James

3.92 · 175 ratings

science fiction · erotica · m-f · futuristic · bdsm · menage · aliens · alpha male · poly · length-short · shy heroine · length-medium · anal sex · class difference · length-novella · possessive hero · virgin heroine · cold hero · m-f-m · double-penetration

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Warriors of Hades

by Jenika Snow

3.45 · 43 ratings

menage · aliens · possessive hero · reverse harem · breeding · non-human-hero · m-f-m · science fiction · length-novella · erotica · poly · alpha male · human-trafficking · slavery · insta-love · explicit-open-door · dystopian · dub-con · m-f · anal sex

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The Valespian Pact

by Lexi Ander

3.92 · 56 ratings

m-m · queer · science fiction · aliens · audiobook · war · futuristic · m-m-m · length-epic · menage · historical · erotica · poly · military · shapeshifters · standalone-first · royalty · mystery · from hate to love · explicit-plentiful

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Clans of Kalquor

by Tracy St. John

3.81 · 279 ratings

science fiction · aliens · bdsm · erotica · futuristic · menage · poly · anal sex · length-medium · bisexual · non-human-hero · alpha male · m-m-f · m-f · m-m · queer · m-f-m · length-long · contemporary · length-short

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Alien Clutch

by D. Dove

3.80 · 53 ratings

third-person-pov · poly · m-m · m-m-m · science fiction · queer · dark · bondage · futuristic · breeding · aliens · somnophilia · erotica · rape · fetish · abduction · creative-anatomy · explicit-plentiful · rape-mc · bdsm

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Resonance Mates

by Bianca D'Arc

3.95 · 62 ratings

science fiction · aliens · futuristic · erotica · menage · dystopian · contemporary · length-medium · length-short · poly · bdsm · m-f-m · fantasy · pregnancy · cowboys · standalone-first · military · first-in-series · men in uniform · paranormal

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Enslaved

by Kaitlyn O'Connor

3.85 · 37 ratings

science fiction · aliens · length-short · futuristic · poly · audiobook · reverse harem · contemporary · cruel hero · erotica · m-f · m-f-m · menage · pregnancy · possessive hero · alpha male · bdsm · tortured heroine · non-human-hero

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The Quads of Galafrax

by Angela Castle

3.64 · 47 ratings

poly · science fiction · aliens · futuristic · length-novella · erotica · menage · reverse harem · curvy heroine · non-human-hero · alpha male · standalone-first · first-in-series · m-f-m · m-m-f · queer · m-m-m · bisexual · abduction · length-short

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The Virgin Auctions

by Jenika Snow

3.47 · 53 ratings

erotica · virgin heroine · bdsm · science fiction · length-novella · m-f · futuristic · super rich hero · human-trafficking · slavery · menage · poly · possessive hero · m-f-m · reverse harem · tortured heroine · dystopian · abduction · contemporary · alpha male

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Triad

by Kate Pearce

3.84 · 58 ratings

erotica · audiobook · bisexual · science fiction · length-novella · m-m-f · futuristic · aliens · explicit-open-door · menage · queer · military · poly · m-f · anal sex · multicultural · men in uniform · tortured hero · vikings · europe

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Bondmates

by Ann Mayburn

3.89 · 48 ratings

science fiction · menage · aliens · futuristic · audiobook · erotica · m-m-f · length-medium · fantasy · psychics · fated-mates · reverse harem · poly · multicultural · m-f · paranormal · bisexual · queer · first-in-series · fetish

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The Arathians

by Nicole Krizek

3.74 · 43 ratings

science fiction · audiobook · futuristic · aliens · m-f · m-m · length-short · queer · m-m-f · menage · length-medium · first-in-series · standalone-first · poly · erotica · paranormal · reverse harem · anal sex · fantasy · bisexual

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Creations

by Marie Harte

3.67 · 30 ratings

aliens · science fiction · futuristic · bdsm · erotica · length-novella · queer · m-m · m-f · menage · length-medium · queer-awakening · first-in-series · poly · standalone-first · m-f-m

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Alien Lovers

by Olivia Black

3.90 · 29 ratings

m-m · queer · science fiction · aliens · length-novella · m-m-m · menage · poly · futuristic · erotica · breeding · new adult · virgin hero · harems · omegaverse · third-person-pov · non-human-hero · insta-love · standalone-first · first-in-series

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Clan Beginnings

by Tracy St. John

4.15 · 60 ratings

m-m · science fiction · queer · poly · m-m-m · aliens · erotica · bdsm · futuristic · menage · contemporary · length-medium · length-long · length-short · anal sex · creative-anatomy · explicit-plentiful · military · third-person-pov · alpha male

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Planet Alpha

by J.J. Lore

3.58 · 24 ratings

science fiction · futuristic · erotica · poly · length-novella · aliens · menage · bisexual · standalone-first · m-f-m · m-m-f · queer · reverse harem · m-m · first-in-series · m-f · non-human-hero · standalone

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A Jane Austen Space Opera

by Joely Sue Burkhart

3.83 · 20 ratings

bdsm · fem-dom · explicit-open-door · fantasy · steampunk · futuristic · erotica · poly · political-intrigue · science fiction · bondage · aristocratic heroine · m-f-m · men in uniform · length-novella · menage · competent heroine · fetish · first-in-series · standalone-first

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The Kithran Regenesis

by Dani Worth

3.55 · 20 ratings

m-m-f · science fiction · bisexual · futuristic · erotica · poly · aliens · length-novella · menage · queer · m-m-m · reverse harem · m-m · pirates · length-short · queer-awakening · standalone-first · m-f · first-in-series · tortured heroine

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