The Instinct

by Marie Harte

3.29 · 14 ratings

m-m-f · poly · erotica · futuristic · bisexual · science fiction · menage · competent heroine · commander · strong heroine · warrior-heroine · alpha male · m-f · gifted heroine · independent heroine · length-short · possessive hero · cold hero · explicit-plentiful · aliens

The Instinct: Similar series

Dark Space

by Lisa Henry

4.11 · 160 ratings

m-m · science fiction · queer · futuristic · suicide · hurt-comfort · sweet-hero · tortured hero · class difference · angst · mental-trauma · past-sexual-abuse · caretaking · past-abuse · military · first-person-pov · bdsm · anal sex · suspense · audiobook

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Interstellar Service & Discipline

by Morgan Hawke

4.15 · 94 ratings

bdsm · poly · m-m-f · menage · science fiction · bisexual · futuristic · erotica · alpha male · m-f · aliens · anal sex · explicit-plentiful · double-penetration · length-long · slavery · contemporary · length-novella · dub-con · non-human-hero

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Alien Warrior

by Penelope Fletcher

3.84 · 119 ratings

science fiction · audiobook · dual-pov · third-person-pov · aliens · futuristic · abduction · alpha male · reverse harem · non-human-hero · virgin hero · royalty · rape · poly · erotica · menage · m-f · dub-con · length-long · dark

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Outlaws

by Elle Kennedy

3.60 · 80 ratings

contemporary · erotica · m-f · suspense · menage · audiobook · science fiction · dystopian · length-medium · futuristic · alpha male · poly · dual-pov · third-person-pov · survival · explicit-plentiful · friends to lovers · bisexual · colorado · north-america

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Men of Eagle Peak

by Mira Stanley

3.87 · 79 ratings

dystopian · science fiction · explicit-plentiful · daddy-kink · alpha male · poly · menage · forced proximity · age difference · reverse harem · queer · contemporary · commander · paranormal · fantasy · cold hero · praise-kink · age play · bdsm · past-abuse

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Aliens Overnight

by Robin L. Rotham

3.67 · 58 ratings

science fiction · bdsm · alpha male · poly · erotica · futuristic · aliens · m-m-f · menage · m-f · breeding · bisexual · non-human-hero · queer · length-medium · m-f-m · contemporary · military · bondage · length-long

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Deep Space Mission Corps

by Tymber Dalton

3.78 · 71 ratings

bisexual · explicit-plentiful · queer · menage · poly · erotica · contemporary · futuristic · m-m-f · m-m · m-m-m · alpha male · reverse harem · length-short · fantasy · bdsm · science fiction · aliens · double-penetration · tortured hero

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Birmingham Rebels

by Samantha Kane

3.79 · 56 ratings

contemporary · poly · alpha male · erotica · menage · lgbtqia hate · queer · explicit-plentiful · bisexual · sports · m-m-f · usa · alabama · athletes · football · friends to lovers · mental-trauma · slut-shaming · found-family · queer-awakening

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Clans of Kalquor

by Tracy St. John

3.83 · 276 ratings

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

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Enslaved

by Kaitlyn O'Connor

3.85 · 37 ratings

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

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Dawn Endeavor

by Marie Harte

4.00 · 51 ratings

fantasy · shapeshifters · erotica · contemporary · paranormal · menage · m-f · anal sex · poly · military · m-m-f · bisexual · queer · m-m · length-short · length-novella · length-medium · vikings · suspense · rape

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Bondmates

by Ann Mayburn

3.88 · 46 ratings

science fiction · menage · futuristic · aliens · audiobook · erotica · fated-mates · reverse harem · queer · bisexual · psychics · fantasy · length-medium · paranormal · m-m-f · poly · m-f · length-short · m-m · sweet heroine

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Triad

by Kate Pearce

3.97 · 52 ratings

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

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The Arathians

by Nicole Krizek

3.73 · 42 ratings

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

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Circle of Three

by Brynn Paulin

3.58 · 41 ratings

menage · erotica · contemporary · length-novella · poly · bdsm · bisexual · paranormal · m-m-f · fantasy · vampires · length-medium · m-f

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Verdantia

by Patricia A. Knight

3.82 · 37 ratings

science fiction · length-medium · bdsm · erotica · m-f · contemporary · alpha male · futuristic · aliens · m-m-f · menage · magic · military · poly · fated-mates · fantasy · bisexual · paranormal · suspense · urban fantasy

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Rescued by the Monsters Reverse Harem Romance

by Alana Khan

3.95 · 28 ratings

reverse harem · poly · paranormal · science fiction · dystopian · fantasy · monsters · futuristic · sweet-hero · dub-con · cheating · menage · sweet heroine · explicit-plentiful · love triangle · tortured heroine · m-m-f · bisexual · shy heroine · length-medium

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Survival of the Fittest

by Shawn Keys

4.22 · 34 ratings

harems · bisexual · menage · bdsm · audiobook · poly · fantasy · pregnancy · age difference · science fiction · dystopian · length-medium · suspense · explicit-open-door · futuristic · erotica · breeding · explicit-plentiful · length-long · new adult

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Planet Alpha

by J.J. Lore

3.45 · 20 ratings

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

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Regency Reimagined

by Megan Mulry

3.20 · 20 ratings

historical · regency · length-short · erotica · f-f · queer · bdsm · poly · m-m-f · menage · bisexual · audiobook · length-novella · m-f · explicit-plentiful · m-m

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The Kithran Regenesis

by Dani Worth

3.53 · 19 ratings

poly · erotica · m-m-f · science fiction · bisexual · futuristic · length-novella · menage · aliens · pirates · queer · m-m-m · reverse harem · m-m · m-f · tortured heroine · non-human-heroine · length-short · queer-awakening

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The Instinct

by Marie Harte

3.29 · 14 ratings

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The Intergalactic Union

by Natasha Campbell-Jones

3.40 · 15 ratings

gifted heroine · first-person-pov · tortured heroine · military · past-abuse · fem-dom · non-human-hero · torture-mcs · abuse-non-mc · mental-trauma · human-trafficking · praise-kink · war · sunny hero · survival · sweet-hero · strong heroine · third-person-pov · friends to lovers · abduction

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Priceless Gemstones

by John Kostly

5.00 · 4 ratings

poly · height-difference · class difference · bisexual · science fiction · queer · slavery · bdsm · bondage · m-f-f · spanking · praise-kink · f-f-f · age play · age difference · alpha male · erotica · fetish · dystopian · politician

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