The Kalpattaans

by Alice Cain

3.44 · 9 ratings

aliens · queer · m-m · science fiction · menage · futuristic · erotica · abduction · contemporary · m-m-m · poly · length-novella

The Kalpattaans: Similar series

Calluvia's Royalty

by Alessandra Hazard

4.12 · 308 ratings

royalty · m-m · anal sex · science fiction · aliens · futuristic · queer · third-person-pov · erotica · age difference · explicit-open-door · from hate to love · height-difference · virgin hero · secret-relationship · dual-pov · angst · length-medium · cold hero · politician

All books in this series ❯

Pykh

by Eileen Glass

3.98 · 159 ratings

height-difference · futuristic · science fiction · aliens · age difference · found-family · alpha male · multicultural · creative-anatomy · tortured hero · military · queer · caretaking · cold hero · first-person-pov · fighters · dual-pov · anal sex · past-abuse · sunny hero

All books in this series ❯

Dark Space

by Lisa Henry

4.13 · 151 ratings

futuristic · science fiction · m-m · queer · class difference · hurt-comfort · sweet-hero · suicide · tortured hero · lgbtqia hate · aliens · death · male-pov · rape-non-mc · suspense · caretaking · military · first-person-pov · bdsm · angst

All books in this series ❯

Claimings

by Lyn Gala

4.11 · 191 ratings

queer · science fiction · aliens · m-m · military · futuristic · bdsm · explicit-open-door · age difference · hurt-comfort · third-person-pov · length-short · caretaking · non-human-hero · past-abuse · multicultural · dual-pov · erotica · height-difference · abuse

All books in this series ❯

Dragon Men

by Amber Kell

3.81 · 86 ratings

m-m · fated-mates · queer · length-novella · shapeshifters · contemporary · aliens · paranormal · futuristic · fantasy · science fiction · bdsm · erotica · royalty · mystery · m-m-m · magic · menage · behind-doors · anal sex

All books in this series ❯

Planetary Submissives

by Amber Kell

3.62 · 58 ratings

m-m · erotica · length-novella · magic · aliens · futuristic · queer · bdsm · anal sex · contemporary · slavery · fantasy · paranormal · science fiction · height-difference · alpha male · royalty · angst · spanking · military

All books in this series ❯

The Slave Breakers

by Maculategiraffe

3.97 · 56 ratings

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

All books in this series ❯

The Harvest

by M.A. Church

3.77 · 56 ratings

m-m · aliens · science fiction · queer · sweet-hero · non-human-hero · height-difference · futuristic · length-novella · explicit-plentiful · omegaverse · multicultural · bondage · contemporary · royalty · creative-anatomy · humor · angst · lgbtqia hate · first-person-pov

All books in this series ❯

The Valespian Pact

by Lexi Ander

3.96 · 53 ratings

m-m · queer · science fiction · aliens · historical · length-epic · menage · erotica · poly · war · military · futuristic · m-m-m · explicit-plentiful · royalty · suspense · age difference · found-family · from hate to love · shapeshifters

All books in this series ❯

Katzman

by Stormy Glenn

3.67 · 59 ratings

queer · m-m · erotica · contemporary · futuristic · aliens · length-novella · length-short · fantasy · science fiction · paranormal · slavery · shapeshifters · royalty · pregnancy · menage

All books in this series ❯

Border Worlds Saga

by Mark Alders

3.25 · 30 ratings

erotica · queer · futuristic · m-m · science fiction · aliens · length-novella · explicit-open-door · insta-love · anal sex · breeding · height-difference · military · length-short

All books in this series ❯

The Arathians

by Nicole Krizek

3.73 · 42 ratings

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

All books in this series ❯

Triad

by Kate Pearce

4.01 · 50 ratings

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

All books in this series ❯

Creations

by Marie Harte

3.71 · 28 ratings

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

All books in this series ❯

Alien Clutch

by D. Dove

4.05 · 21 ratings

bondage · rape · rape-mc · somnophilia · creative-anatomy · m-m-m · third-person-pov · explicit-plentiful · abduction · male-pov · m-m · praise-kink · poly · erotica · breeding · dark · anal sex · science fiction · aliens · non-trad-hea

All books in this series ❯

Clan Beginnings

by Tracy St. John

4.19 · 58 ratings

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

All books in this series ❯

The Village

by Darien Cox

3.99 · 26 ratings

m-m · queer · erotica · aliens · length-medium · science fiction · futuristic · mystery · contemporary · from hate to love · friends to lovers · fantasy · menage · poly · paranormal · m-m-m · length-long

All books in this series ❯

Alien Slave Masters

by Samantha Cayto

4.00 · 29 ratings

queer · science fiction · m-m · erotica · aliens · futuristic · bdsm · length-novella · dark · suspense · slavery · rape · height-difference · m-f · poly · dub-con · m-m-m · abuse · queer-awakening · from hate to love

All books in this series ❯

Pleasure Hound

by Ines Johnson

3.75 · 16 ratings

multicultural · erotica · menage · m-m · queer · length-novella · bisexual · science fiction · futuristic · m-f · length-medium

All books in this series ❯

Pridelands

by Jade Buchanan

3.63 · 19 ratings

length-novella · erotica · science fiction · paranormal · fantasy · futuristic · canada · north-america · m-m · queer · menage · m-f · m-m-f · bisexual · poly · aliens · queer-awakening · contemporary

All books in this series ❯

Soul Match

by Morticia Knight

3.73 · 15 ratings

m-m · queer · length-short · menage · bdsm · aliens · science fiction · futuristic · poly · m-m-m · erotica · fated-mates

All books in this series ❯

Felidae

by Jade Buchanan

3.61 · 18 ratings

erotica · length-novella · futuristic · aliens · science fiction · m-m · queer · menage · m-f · contemporary · poly · fantasy · shapeshifters · m-m-f · bisexual · paranormal

All books in this series ❯

The Kalpattaans

by Alice Cain

3.44 · 9 ratings

aliens · queer · m-m · science fiction · menage · futuristic · erotica · abduction · contemporary · m-m-m · poly · length-novella

All books in this series ❯

Harder

by Audrey Grace

3.33 · 3 ratings

science fiction · length-novella · erotica · aliens · queer · futuristic · m-m · anal sex · height-difference

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.