Kingdom of Kell

by Angela Castle

3.75 · 20 ratings

angels · science fiction · erotica · length-short · futuristic · aliens · curvy heroine · m-f · betrayal

Kingdom of Kell: Similar series

Ruth & Gron

by V.C. Lancaster

3.63 · 152 ratings

non-human-hero · erotica · futuristic · science fiction · aliens · sweet-hero · m-f · possessive hero · explicit-open-door · virgin hero · insta-love · alpha male · contemporary · height-difference · strong heroine · abduction · length-novella · fated-mates · length-short · m-f-m

All books in this series ❯

Interstellar Brides

by Grace Goodwin

4.05 · 554 ratings

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

All books in this series ❯

Interstellar Brides: The Colony

by Grace Goodwin

4.18 · 180 ratings

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

All books in this series ❯

Grabbed

by Lolita Lopez

3.96 · 138 ratings

bdsm · military · science fiction · aliens · futuristic · erotica · length-short · alpha male · length-medium · men in uniform · virgin heroine · m-f · suspense · menage · spanking · insta-love · possessive hero · breeding · non-human-hero · from hate to love

All books in this series ❯

Galactic Gladiators

by Anna Hackett

4.11 · 226 ratings

m-f · science fiction · aliens · military · futuristic · length-short · erotica · non-human-hero · tall-heroine · alpha male · abduction · strong heroine · warrior-heroine · insta-love · fighters · curvy heroine · non-human-heroine · sweet heroine · height-difference · virgin hero

All books in this series ❯

Breeder

by Cara Bristol

3.49 · 56 ratings

science fiction · spanking · aliens · military · futuristic · bdsm · length-short · m-f · erotica · abuse · dark · alpha male · anal sex · dystopian · explicit-open-door · queer · cruel hero · forced-pregnancy · tortured heroine · cold hero

All books in this series ❯

Lumerian Knights

by Becca Brayden

3.97 · 65 ratings

aliens · length-short · science fiction · witches · vampires · insta-love · alpha male · new adult · military · explicit-open-door · contemporary · paranormal · angels · age difference · erotica · futuristic · fated-mates · shapeshifters · fantasy · rape-mc

All books in this series ❯

Dragons in Exile

by Lili Zander

4.15 · 121 ratings

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

All books in this series ❯

Planet of Desire

by Robin Lovett

3.50 · 59 ratings

science fiction · futuristic · length-short · m-f · erotica · suspense · forced proximity · explicit-plentiful · aliens · explicit-open-door · strong heroine · non-human-hero · tortured hero · dub-con · commander · vengeance · exhibitionism · forbidden love · paranormal · self harm

All books in this series ❯

3013

by Susan Hayes

4.06 · 193 ratings

science fiction · military · futuristic · aliens · length-medium · m-f-m · menage · poly · dystopian · length-short · erotica · suspense · reverse harem · paranormal · tortured heroine · m-f · possessive hero · fantasy · alpha male · magic

All books in this series ❯

Orion

by Cathryn Cade

3.54 · 51 ratings

shapeshifters · futuristic · erotica · science fiction · length-novella · contemporary · aliens · paranormal · fantasy · length-short · alpha male · suspense · m-f

All books in this series ❯

Mail Call

by Kate Pearce

3.63 · 30 ratings

erotica · menage · scandinavia · futuristic · aliens · europe · vikings · contemporary · m-f · length-short · science fiction · paranormal · pregnancy · historical · m-f-m · non-human-hero · breeding · bdsm · poly · fantasy

All books in this series ❯

Angels and Gargoyles

by Brenda L. Harper

3.90 · 36 ratings

fantasy · demons · young adult · paranormal · length-short · futuristic · angels · urban fantasy · science fiction · betrayal · dystopian

All books in this series ❯

Alcandians

by Mary Wine

3.67 · 26 ratings

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

All books in this series ❯

Tail and Claw

by Nancey Cummings

3.85 · 42 ratings

science fiction · aliens · length-short · humor · non-human-hero · military · futuristic · length-medium · erotica · men in uniform · explicit-open-door · disabilities and marks · arranged marriage · insta-love · pregnancy · m-f · alpha male · possessive hero · single-father · breeding

All books in this series ❯

Kingdom of Kell

by Angela Castle

3.75 · 20 ratings

angels · science fiction · erotica · length-short · futuristic · aliens · curvy heroine · m-f · betrayal

All books in this series ❯

Zerconian Warriors

by Sadie Carter

4.00 · 124 ratings

science fiction · futuristic · humor · aliens · length-short · m-f · erotica · paranormal · fantasy · mystery · length-novella · christmas · non-human-hero · non-human-heroine

All books in this series ❯

Terraneu

by Stormy McKnight

3.83 · 39 ratings

erotica · science fiction · futuristic · aliens · humor · length-short · length-novella · non-human-hero

All books in this series ❯

Six Feet Under

by Talyn Scott

4.44 · 25 ratings

werewolves · shapeshifters · fantasy · paranormal · vampires · menage · erotica · length-short · alpha male · contemporary · futuristic · science fiction · rape · m-f · bdsm · length-medium

All books in this series ❯

Entwined Fates

by Trista Ann Michaels

3.78 · 60 ratings

futuristic · science fiction · erotica · m-f · bdsm · aliens · anal sex · length-novella · length-short · menage · contemporary · pirates · length-medium · rape · abduction · fantasy · military · m-f-m · alpha male · non-human-hero

All books in this series ❯

Beastmen of Ator

by Kaitlyn O'Connor

3.39 · 18 ratings

science fiction · aliens · length-short · erotica · poly · futuristic · bdsm · shapeshifters · abduction · menage · non-human-hero · m-f-m · reverse harem · dystopian · time travel

All books in this series ❯

Magic University

by Cecilia Tan

3.56 · 16 ratings

urban fantasy · erotica · paranormal · fantasy · length-short · magic · science fiction · futuristic · m-f · m-m · queer

All books in this series ❯

Galaxy Alien Warriors

by Lara Larue

3.63 · 19 ratings

futuristic · aliens · science fiction · alpha male · military · length-short · royalty · insta-love · erotica · multicultural · pregnancy · strong heroine · breeding · curvy heroine · abduction · cruel hero · super rich hero · length-medium

All books in this series ❯

New Eden Chronicles

by Evanne Lorraine

3.50 · 8 ratings

science fiction · futuristic · length-short · erotica · menage · aliens · poly · bisexual · curvy heroine · m-m-f · demons

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.