Harder

by Audrey Grace

3.33 · 3 ratings

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

Harder: Similar series

Monstrous

by Lily Mayne

4.34 · 2451 ratings

explicit-plentiful · queer · monsters · dystopian · m-m · anal sex · usa · sweet-hero · first-person-pov · audiobook · humor · fantasy · age difference · childfree-couple · non-human-hero · paranormal · futuristic · creative-anatomy · sunny hero · friends to lovers

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Calluvia's Royalty

by Alessandra Hazard

4.09 · 342 ratings

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

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THIRDS

by Charlie Cochet

4.23 · 664 ratings

audiobook · erotica · suspense · paranormal · science fiction · queer · m-m · shapeshifters · mystery · fantasy · futuristic · men in uniform · urban fantasy · military · contemporary · alpha male · humor · usa · dual-pov · third-person-pov

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Pykh

by Eileen Glass

4.03 · 203 ratings

aliens · age difference · futuristic · male-pov · m-m-m · science fiction · height-difference · queer · m-m · found-family · poly · alpha male · audiobook · menage · anal sex · omegaverse · cold hero · sunny hero · breeding · first-person-pov

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Claimings

by Lyn Gala

4.13 · 206 ratings

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

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Zandian Masters

by Renee Rose

3.86 · 226 ratings

science fiction · audiobook · futuristic · bdsm · m-f · aliens · spanking · non-human-hero · explicit-plentiful · height-difference · alpha male · forced proximity · slavery · multicultural · third-person-pov · war · possessive hero · past-abuse · rape-non-mc · insta-love

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The Alien's Omega

by Sienna Sway

3.78 · 117 ratings

queer · aliens · omegaverse · m-m · science fiction · non-human-hero · explicit-open-door · first-person-pov · fated-mates · futuristic · anal sex · dual-pov · sweet-hero · hurt-comfort · height-difference · creative-anatomy · virgin hero · forced proximity · men in uniform · alpha male

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Galactic Gems

by Clio Evans

3.76 · 53 ratings

futuristic · fated-mates · aliens · science fiction · explicit-plentiful · audiobook · breeding · anal sex · bdsm · creative-anatomy · dual-pov · fantasy · length-short · height-difference · from hate to love · queer · paranormal · erotica · cheerful heroine · non-human-hero

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Dragon Men

by Amber Kell

3.81 · 86 ratings

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

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The Harvest

by M.A. Church

3.76 · 58 ratings

science fiction · queer · m-m · aliens · sweet-hero · height-difference · non-human-hero · futuristic · possessive hero · erotica · contemporary · multicultural · men in uniform · length-novella · angst · lgbtqia hate · royalty · creative-anatomy · explicit-plentiful · new adult

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Planetary Submissives

by Amber Kell

3.62 · 58 ratings

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

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Metahuman Files: Classified

by Hailey Turner

4.15 · 40 ratings

dystopian · science fiction · queer · fetish · m-m · length-novella · audiobook · dual-pov · men in uniform · paranormal · third-person-pov · suspense · anal sex · futuristic · male-pov · military · explicit-open-door · superheroes · bisexual · masc-dom

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Katzman

by Stormy Glenn

3.59 · 62 ratings

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

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Maxim Colonies

by Lesli Richardson

4.09 · 34 ratings

aliens · audiobook · science fiction · shy-hero · mystery · futuristic · super rich hero · male-pov · length-short · demi-sexual-hero · queer · height-difference · m-m · explicit-plentiful · m-f-x · first-person-pov · non-human-hero · insta-love · anal sex · pregnancy

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Border Worlds Saga

by Mark Alders

3.17 · 31 ratings

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

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Alien Clutch

by D. Dove

3.95 · 28 ratings

aliens · anal sex · non-trad-hea · praise-kink · male-pov · futuristic · breeding · bdsm · bondage · dark · rape-mc · creative-anatomy · abduction · science fiction · queer · m-m-m · explicit-plentiful · m-m · rape · fetish

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Cosmic Romance

by Mars Quinn

3.90 · 34 ratings

first-person-pov · non-human-hero · dual-pov · aliens · fated-mates · science fiction · queer · new adult · height-difference · m-m · anal sex · possessive hero · caretaking · explicit-open-door · friends to lovers · tortured hero · multicultural · sweet-hero · hurt-comfort · fantasy

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Creations

by Marie Harte

3.67 · 30 ratings

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

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Sold!

by Anitra Lynn McLeod

3.64 · 44 ratings

anal sex · length-novella · contemporary · m-m · queer · erotica · futuristic · aliens · fantasy · abduction · paranormal · slavery · science fiction · explicit-plentiful · abuse · insta-love

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Alien Slave Masters

by Samantha Cayto

4.00 · 29 ratings

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

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For A Chance At Us

by Toby Wise

3.92 · 13 ratings

new adult · height-difference · first-person-pov · explicit-open-door · non-human-hero · anal sex · aliens · multicultural · sweet-hero · dual-pov · science fiction · queer · friends to lovers · creative-anatomy · m-m · fantasy · pregnancy · futuristic · length-novella · caretaking

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Felidae

by Jade Buchanan

3.61 · 18 ratings

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

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Harder

by Audrey Grace

3.33 · 3 ratings

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

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Priceless Gemstones

by John Kostly

5.00 · 4 ratings

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

All books in this series ❯

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