Earth 4040

by Eva Priest

4.25 · 4 ratings

length-short · aliens · humor · poly · erotica · science fiction · m-f · menage · reverse harem · futuristic

Earth 4040: Similar series

Ice Planet Barbarians

by Ruby Dixon

3.84 · 5823 ratings

aliens · science fiction · m-f · fated-mates · non-human-hero · creative-anatomy · explicit-open-door · futuristic · dual-pov · pregnancy · first-person-pov · erotica · humor · sweet-hero · breeding · alpha male · audiobook · forced proximity · multicultural · height-difference

All books in this series ❯

Corsairs

by Ruby Dixon

3.88 · 446 ratings

non-human-hero · explicit-open-door · first-person-pov · military · possessive hero · slow burn · dual-pov · creative-anatomy · pirates · futuristic · forced proximity · aliens · erotica · m-f · science fiction · insta-love · tortured heroine · caretaking · human-trafficking · sweet-hero

All books in this series ❯

Chosen

by Stacy Jones

4.00 · 286 ratings

aliens · reverse harem · poly · explicit-open-door · non-human-hero · competent heroine · science fiction · height-difference · sunny hero · possessive hero · dual-pov · sweet-hero · sweet heroine · abduction · creative-anatomy · shy-hero · humor · futuristic · m-f · caretaking

All books in this series ❯

Wren's Song

by Addison Cain

3.76 · 199 ratings

menage · paranormal · poly · fantasy · rape · dystopian · dark · science fiction · abuse · explicit-plentiful · alpha male · erotica · reverse harem · other-man-woman · abduction · omegaverse · bdsm · futuristic · angst · cruel hero

All books in this series ❯

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

All books in this series ❯

Club Heat

by Victoria Kent

3.71 · 86 ratings

length-short · reverse harem · fantasy · m-m-f · m-f-m · explicit-plentiful · queer · bisexual · contemporary · audiobook · erotica · m-f · poly · omegaverse · super rich hero · humor · forced proximity · male-pov · usa · m-m

All books in this series ❯

Interstellar Brides

by Grace Goodwin

4.04 · 606 ratings

science fiction · audiobook · military · futuristic · aliens · non-human-hero · length-short · m-f · dual-pov · alpha male · first-person-pov · male-pov · possessive hero · fighters · multicultural · fated-mates · height-difference · erotica · explicit-plentiful · spanking

All books in this series ❯

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

All books in this series ❯

Bubble Babes

by Petra Palerno

3.76 · 69 ratings

science fiction · erotica · possessive hero · first-person-pov · bondage · caretaking · non-human-hero · abduction · creative-anatomy · dual-pov · strong heroine · aliens · fated-mates · futuristic · height-difference · m-f · audiobook · cold hero · human-trafficking · praise-kink

All books in this series ❯

Tales Of The Shareem

by Allyson James

3.91 · 169 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 · rich heroine

All books in this series ❯

Interstellar Brides: The Virgins

by Grace Goodwin

4.10 · 81 ratings

non-human-hero · military · futuristic · aliens · science fiction · bondage · fated-mates · breeding · spanking · praise-kink · possessive hero · anal sex · audiobook · alpha male · dual-pov · fetish · gifted heroine · shapeshifters · fighters · virgin heroine

All books in this series ❯

Dragons in Exile

by Lili Zander

4.11 · 128 ratings

audiobook · science fiction · shapeshifters · futuristic · aliens · length-short · menage · anal sex · poly · m-f · dragon shifter · first-person-pov · possessive hero · dual-pov · double-penetration · m-f-m · fantasy · male-pov · erotica · paranormal

All books in this series ❯

Cyberevolution

by Kaitlyn O'Connor

3.92 · 143 ratings

science fiction · reverse harem · erotica · poly · aliens · futuristic · alpha male · menage · m-f-m · length-short · contemporary · length-medium · pregnancy · military · breeding · exhibitionism · humor · m-f · m-m · other-man-woman

All books in this series ❯

The Slave Breakers

by Maculategiraffe

3.87 · 59 ratings

dystopian · erotica · fantasy · futuristic · slavery · bdsm · abuse · science fiction · m-m-m · queer · rape · poly · m-f · menage · historical · m-m · urban fantasy · harems · length-short · dark

All books in this series ❯

Vakarran Captives

by Sara Fields

3.85 · 56 ratings

suspense · audiobook · science fiction · menage · poly · abduction · dystopian · dark · m-f-m · bdsm · spanking · futuristic · length-short · reverse harem · aliens · fantasy · dub-con · m-f · fetish · non-human-hero

All books in this series ❯

Oath Forger

by Nia Mars

3.92 · 68 ratings

shy heroine · nerdy-hero · aliens · age difference · super rich hero · length-short · fated-mates · futuristic · reverse harem · independent heroine · poly · m-f · alpha male · commander · competent heroine · royalty · science fiction · height-difference · first-person-pov · military

All books in this series ❯

Enslaved

by Kaitlyn O'Connor

3.85 · 37 ratings

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

All books in this series ❯

Taken

by Stacy Jones

4.01 · 61 ratings

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

All books in this series ❯

A Bride for Eight Brothers

by Abby Blake

3.53 · 58 ratings

contemporary · poly · erotica · length-short · reverse harem · science fiction · aliens · bdsm · menage · futuristic · m-f · spanking · alpha male · fantasy

All books in this series ❯

Alcandians

by Mary Wine

3.57 · 27 ratings

science fiction · erotica · aliens · length-short · menage · poly · contemporary · m-f · futuristic · reverse harem · non-human-hero

All books in this series ❯

Prison World

by Julie K. Cohen

4.07 · 44 ratings

fantasy · reverse harem · poly · audiobook · science fiction · alpha male · strong heroine · anal sex · humor · historical · length-medium · rape · tortured hero · menage · suspense · forced proximity · age difference · possessive hero · bad boys · futuristic

All books in this series ❯

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

All books in this series ❯

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

All books in this series ❯

The Intergalactic Guide to Humans

by Skye MacKinnon

4.04 · 42 ratings

science fiction · humor · aliens · length-novella · multicultural · audiobook · menage · male-pov · reverse harem · futuristic · first-person-pov · non-human-hero · m-f-m · childfree-couple · creative-anatomy · abduction · double-penetration · dual-pov · poly · m-f

All books in this series ❯

© Copyright 2015-2023, Elektrolabs Limited · Advertising Disclosure: Please note that many links to retailers are affiliate links, which yields a commission for us. romance.io is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.