The Instinct: Similar romance series

Turning

by J.A. Huss

3.92 · 140 ratings

suspense · menage · contemporary · poly · erotica · alpha male · m-f · new adult · bisexual · explicit-plentiful · m-m-f · dark · length-medium · bdsm · spanking · forbidden love · m-f-m · love triangle · other-man-woman · super rich hero

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Interstellar Service & Discipline

by Morgan Hawke

4.14 · 98 ratings

futuristic · bdsm · bisexual · explicit-plentiful · science fiction · menage · m-m-f · poly · double-penetration · aliens · anal sex · erotica · alpha male · m-f · length-long · length-novella · rape · spanking · abduction · dark

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Alien Warrior

by Penelope Fletcher

3.89 · 128 ratings

third-person-pov · dual-pov · science fiction · audiobook · futuristic · aliens · abduction · explicit-plentiful · alpha male · m-f · reverse harem · rape · virgin hero · dub-con · sweet-hero · non-human-hero · insta-love · past-sexual-abuse · dark · royalty

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Outlaws

by Elle Kennedy

3.57 · 87 ratings

futuristic · length-medium · science fiction · suspense · menage · audiobook · contemporary · m-f · erotica · dystopian · bad boys · exhibitionism · fantasy · usa · death · explicit-plentiful · bisexual · alpha male · poly · dark

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Men of Eagle Peak

by Mira Stanley

3.84 · 89 ratings

tortured heroine · first-person-pov · mental-trauma · dark · survival · dual-pov · dystopian · tortured hero · age difference · forced proximity · exhibitionism · reverse harem · contemporary · poly · alpha male · m-f · menage · science fiction · explicit-plentiful · daddy-kink

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Aliens Overnight

by Robin L. Rotham

3.67 · 58 ratings

poly · erotica · futuristic · aliens · science fiction · bdsm · alpha male · m-f · breeding · bisexual · m-m-f · menage · bondage · length-short · reverse harem · f-f · explicit-plentiful · queer · anal sex · non-human-hero

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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 · alpha male · m-m-m · m-m · bdsm · fantasy · length-short · reverse harem · science fiction · aliens · men in uniform · hurt-comfort

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Clans of Kalquor

by Tracy St. John

3.82 · 278 ratings

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

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The Ruins Of Men

by A.H. Hadley

4.17 · 37 ratings

futuristic · misogyny · fantasy · competent heroine · found-family · poly · religious-trauma · science fiction · politician · tortured heroine · survival · dual-pov · dystopian · m-m-f · independent heroine · paranormal · commander · m-m · bisexual · m-m-m

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Taken

by Stacy Jones

4.01 · 61 ratings

science fiction · poly · aliens · reverse harem · erotica · alpha male · m-f · strong heroine · futuristic · military · insta-love · non-human-hero · abduction · multicultural · sweet-hero · humor · forced proximity · possessive hero · independent heroine · fighters

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Fallon Mates

by Jory Strong

3.83 · 73 ratings

erotica · science fiction · futuristic · menage · aliens · contemporary · poly · alpha male · m-f-m · paranormal · length-novella · explicit-plentiful · length-medium · demons · length-short · reverse harem · fantasy · breeding · angels · m-m

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The Angelini

by Jory Strong

3.77 · 38 ratings

m-m-f · paranormal · poly · erotica · m-m · fantasy · bisexual · vampires · queer · menage · contemporary · length-short · non-human-heroine · strong heroine · werewolves · suspense · explicit-open-door · magic · length-medium · shapeshifters

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Bondmates

by Ann Mayburn

3.90 · 47 ratings

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

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Triad

by Kate Pearce

3.87 · 55 ratings

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

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The Arathians

by Nicole Krizek

3.73 · 42 ratings

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

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Verdantia

by Patricia A. Knight

3.77 · 38 ratings

m-f · erotica · science fiction · length-medium · bdsm · alpha male · futuristic · aliens · contemporary · poly · fated-mates · fantasy · bisexual · m-m-f · menage · military · magic · bondage · length-short · anal sex

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Rescued by the Monsters Reverse Harem Romance

by Alana Khan

3.95 · 28 ratings

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

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Survival of the Fittest

by Shawn Keys

4.22 · 34 ratings

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

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Planet Alpha

by J.J. Lore

3.45 · 20 ratings

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

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The Kithran Regenesis

by Dani Worth

3.53 · 19 ratings

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

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The Intergalactic Union

by Natasha Campbell-Jones

3.55 · 19 ratings

third-person-pov · strong heroine · survival · sweet-hero · class difference · past-child-abuse · rape · dystopian · vengeance · angst · friends to lovers · abduction · mental-trauma · fem-dom · non-human-hero · torture-mcs · military · past-abuse · abuse-non-mc · first-person-pov

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The Instinct

by Marie Harte

3.29 · 14 ratings

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

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Savage Planet Series

by Kassie Keegan

4.38 · 8 ratings

aliens · length-long · reverse harem · bisexual · erotica · science fiction · poly · futuristic · length-medium · fantasy · paranormal · queer · found-family

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Priceless Gemstones

by John Kostly

5.00 · 5 ratings

f-f-f · age difference · praise-kink · spanking · age play · bdsm · slavery · m-f-f · bondage · science fiction · bisexual · queer · explicit-plentiful · height-difference · class difference · poly · anal sex · harems · futuristic · politician

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by Marie Harte

The Instinct: Similar series

by J.A. Huss

by Morgan Hawke

by Penelope Fletcher

by Elle Kennedy

by Mira Stanley

by Robin L. Rotham

by Tymber Dalton

by Tracy St. John

by A.H. Hadley

by Stacy Jones

by Jory Strong

by Jory Strong

by Ann Mayburn

by Kate Pearce

by Nicole Krizek

by Patricia A. Knight

by Alana Khan

by Shawn Keys

by J.J. Lore

by Dani Worth

by Natasha Campbell-Jones

by Marie Harte

by Kassie Keegan

by John Kostly