Galatea Logo
AboutListsBlogSupport
Werewolves & Shifters
Mafia
Billionaire Romance
Bully Romance
Slow Burn
Enemies to Lovers
Paranormal & Fantasy
Fated Mates
Dark Romance
Sports Stories
College Romance
See All Categories
Rated 4.6 on the App Store
Terms of ServicePrivacyImprint
/images/icons/facebook.svg/images/icons/instagram.svg/images/icons/tiktok.svg
Test Subject

Test Subject

by Tami

Ten doors. Ten monsters. Ten sessions of interactive data collection.

With a PhD from MIT and crushing student loans, Cat Woods accepts a suspiciously well-paid job "collecting samples" from creatures in an underground lab focused on STEM (Sex, Tech, Experiments, and Monsters).

Cat should be terrified… so why does she keep wanting to open the next door?

TW: nonstandard penetration, fluids (various), cumulative data, butt crawling, bodymorpherotica, impossibly large peens

Owned by the Alphas

Owned by the Alphas

by Jen Cooper

Nikolai. Braxton. Derik. Three alphas who have pledged to protect the humans in their territory. All they ask in return is one night with the virgins of the villages, one night to take them under the blood moon and complete the ritual. This year is Lorelai’s turn. A winter born, cursed—or blessed—with powers rarely seen, Lorelai has been shunned by the other villagers her whole life. Once she’s taken to the wolves’ mansion, she takes matters into her own hands. After all, what if one night just isn’t enough?

Age Rating: 18+

The Drake Twins

The Drake Twins

by Rowan Cody

They used to make her life miserable—every taunt, every smirk, every stolen moment meant to break her down. But growing up didn’t erase the magnetic pull she’s always felt toward the Drake twins. Now, seven years later, they’re back in her world—older, darker, and twice as tempting. Their arrogance is still there, but so is something new flickering behind those wicked eyes. Desire. Challenge. A dangerous game she swore she’d never play again. She tells herself she should walk away, but the truth is she’s never been good at resisting them—or the delicious kind of chaos they bring.

The Irish Syndicate Book 1: Our Wicked Cravings

The Irish Syndicate Book 1: Our Wicked Cravings

by M. L. Smith

"You have always been mine.”

Mina never expected to see her stepbrother again—let alone like this. But when she steps into a secretive club, she walks straight into the arms of the one man who's been watching from the shadows… and waiting to make her his. Ronan, the ruthless head of Boston’s crime syndicate, doesn’t just want her—he owns her now. Years of silent obsession have built to this moment, and he won’t let anything—or anyone—stand between them. As enemies circle and the syndicate teeters on the edge, one thing’s clear: he’s not letting her go, no matter how dark things get.

Three. The Perfect Number

Three. The Perfect Number

by R. S. Aria

Madison Davis is finally done with college. Time to go home, see her brothers and their best friends, the twins, and find a boyfriend who won’t cheat on her with her friend. But Madison’s life is upended when she sees the twins again. Suddenly they don’t feel so much like brothers to her, and she doesn’t feel like their friends’ bratty little sister to them, either... What are they going to do when they can’t resist each other any longer? And what will her brothers say?

Age Rating: 18+

Grayson

Grayson

by Lisa Seven

Kassia's life takes a dramatic turn when she meets her new stepbrother, Grayson. Instantly captivated by his commanding presence, she finds herself navigating an uncharted sea of emotions. A chance encounter transforms their dynamic, leaving Kassia at the mercy of a growing attraction that defies all rules. Torn between what she feels and what she knows is forbidden, Kassia must decide if she’s ready to cross the line—or risk losing everything.

The Academy of Shades 1: Secrets of the Blackwood

The Academy of Shades 1: Secrets of the Blackwood

by Amanda Underwood

Larissa didn’t ask to be feared. But when shadows obey your every thought—sometimes a little too well—trouble follows. Now she’s broke, haunted by the past, and stuck cleaning up after three infuriatingly hot, infuriatingly powerful guys headed to an elite magic academy. She counted the days till they left. Then her own letter arrived. Now Larissa’s stepping into a school filled with nightmares, secrets, and monsters that wear heartbreakingly beautiful faces. Her shadows will protect her—but these boys? They might just destroy her... or fall with her. Either way, she’s not going quietly.

Seeking Bliss

Seeking Bliss

by Lainey Mars

By day, Sara does a great impression of a meek, boring virgin living with her parents. At night, she transforms into her smart-mouthed, sassy alter-ego, Jessa Bell - bartender extraordinaire at one of the hottest clubs in Atlanta. With her twenty-first birthday quickly approaching, she has her sights set on moving out on her own and scoring a coveted position at Bliss, one of the most exclusive BDSM clubs on the East Coast. Then one night, three beautiful guys waltz in and forever alter the fabric of her reality. What started off as a simple flirtation soon turns into something so impossible to resist, none of them will ever be the same.

Dirty Money Book 1: The Million Dollar Virgin

Dirty Money Book 1: The Million Dollar Virgin

by Rebekah Halt

Sloane Heathrow was never supposed to apply. It was a joke — a late-night click on a dark web ad offering one million dollars for one virgin. But when a black-and-gold email lands in her inbox with an interview time and location, the joke stops being funny. The offer is real. The contract is binding. And the men behind it are hidden, impossibly wealthy, and completely untouchable. Suddenly, Sloane is pulled into a world built on luxury, secrecy, and control, where every rule is carefully designed to keep her in line. What begins as a bold decision quickly becomes something far more dangerous as boundaries blur, emotions deepen, and the arrangement becomes harder to escape than she ever expected.

Thirty days.

Three men.

One secret she can never tell.

Solomon Academy 1: Della

Solomon Academy 1: Della

by Stephanie Sharpe

Della, a blue-haired outcast, discovers she’s not the monster her parents claimed—she’s something much darker. After being attacked, she learns she’s a demon and is taken to Solomon Academy to harness her mysterious powers and control her growing hunger. But Della isn't just any demon; no one knows what she truly is. As she navigates a world filled with dangerous secrets and deadly enemies, she must figure out who she is—with the help of some intriguing allies and the threat of others who might want her dead.

Borders Pack Book 1: My Three Mates

Borders Pack Book 1: My Three Mates

by K.K.S.

She was rescued by the Borders pack, but identical triplets with striking looks have picked up her scent and become fixated with her. Despite her attempts to flee, their prowess makes escape seem futile.

With the Mating Moon approaching, they're determined to share her, for she's rare among the seven breedable females.

“She won't be going anywhere until we've had our fill of her. And under a Mating Moon, us males are insatiable.”

The Winter Foursome

The Winter Foursome

by Chad Wannamaker

After months of trying to make a baby, Terry and Donald are stuck in a rut. They head out for a wild weekend away with Peter and Kristal…only to find that their friends are a lot wilder than they’d bargained for.

Attractions sizzle. Jealousies simmer. Can the two couples make it through the weekend with their relationships—and their libidos—intact?

Claimed by Callista

Claimed by Callista

by C. Swallow

Callista rules as the Sun King—fierce, divine, and ready to claim his Moon. Yehseeka? She’s wild, proud, and has zero interest in serving any man. But tradition doesn’t ask. It chooses. And the moment Callista lays eyes on her, sparks ignite. As Yehseeka navigates his tribal world, temptation comes from every corner—from the stoic king, his darkly magnetic brother, and a third who hides more than scars. She resists, but desire is a language of its own. Just as she starts to find power in connection, her past comes roaring back with a threat only blood can answer. Now, love, lust, and legacy collide under the tribal stars.

(TW: Sexual Assault)

The Doctor's Mates Book 1

The Doctor's Mates Book 1

by Corinthe Davies

Anastasia thrives on chaos, caffeine, and saving lives during long ER night shifts. She expects blood, broken bones, and the occasional miracle, not a secret call that pulls her into a hidden wolf pack with rules of its own. Medicine meets moonlight as instincts stir and bonds snap into place without asking permission. Three powerful wolves circle her world, each reacting differently to the pull they cannot deny. One offers warmth, one offers loyalty, and one clearly wishes she would disappear. Anastasia carries secrets of her own, and staying detached feels safer than trusting fate. But when destiny growls this loudly, can anyone pretend it is not real?

NORSE

NORSE

by Lulu Waters

Lief, Torsten, and Erik have been searching for their beloved queen for centuries after an evil sorcerer cursed them to live without her. They've almost given up hope...until one day, on an archaeological dig site in Norway, a girl with hair as white as snow appears, inspiring fresh hope for an end to their search. Runa Liv grew up listening to her Grandma's stories of three kings and their beloved queen, desperate to learn their true ending. She doesn't know what she's getting herself into when three handsome giants seduce her, but soon it seems the ending to the stories of her childhood might be entirely hers to write. With three fine Viking kings falling at her feet, the fight of a lifetime seems too tempting to resist.

Age Rating: 18+

You may also like

Reverse HaremView all
Test Subject

Test Subject

by Tami

Owned by the Alphas

Owned by the Alphas

by Jen Cooper

Charlotte and the Seven Frat Brothers

Charlotte and the Seven Frat Brothers

by Jessica Carter

The Drake Twins

The Drake Twins

by Rowan Cody

Three. The Perfect Number

Three. The Perfect Number

by R. S. Aria

The Academy of Shades 1: Secrets of the Blackwood

The Academy of Shades 1: Secrets of the Blackwood

by Amanda Underwood

Seeking Bliss

Seeking Bliss

by Lainey Mars

Dirty Money Book 1: The Million Dollar Virgin

Dirty Money Book 1: The Million Dollar Virgin

by Rebekah Halt

Solomon Academy 1: Della

Solomon Academy 1: Della

by Stephanie Sharpe

Borders Pack Book 1: My Three Mates

Borders Pack Book 1: My Three Mates

by K.K.S.

Claimed by Callista

Claimed by Callista

by C. Swallow

The Doctor's Mates Book 1

The Doctor's Mates Book 1

by Corinthe Davies

My Son's Best Friends

My Son's Best Friends

by Mr Writer

NORSE

NORSE

by Lulu Waters

Eternal Academy

Eternal Academy

by Queen Vega

BDSMView all
The Irish Syndicate Book 1: Our Wicked Cravings

The Irish Syndicate Book 1: Our Wicked Cravings

by M. L. Smith

Reed's Sex Academy

Reed's Sex Academy

by Rhea Harp

Wings of Glass 1: Storm

Wings of Glass 1: Storm

by J. E. Romm

Capture Me

Capture Me

by Daphne Watson

Of Sea and Shadow

Of Sea and Shadow

by Riley Marino

Stockholm Syndrome

Stockholm Syndrome

by Vivienne Wren

Captive of the Snake King

Captive of the Snake King

by Raven Flanagan

Demon King's Possession

Demon King's Possession

by A. L. Smith

Belle Island 1: The Mermaid That's Sweetest

Belle Island 1: The Mermaid That's Sweetest

by C. Swallow

Taquork Market: A Gift for the General

Taquork Market: A Gift for the General

by B. Chase

The Vampire's Call

The Vampire's Call

by M. Syrah

The Ultimate Series Book 1: Feral

The Ultimate Series Book 1: Feral

by A. K. Glandt

Taken By The Mafia

Taken By The Mafia

by Annie Whipple

The Billionaire Beach Boy

The Billionaire Beach Boy

by Mandie Steyl

The Emma Series

The Emma Series

by C. Wright

HomeCategoriesThreesome Books

Threesome Books

Threesome Books explore romantic relationships involving three people who find love and fulfillment together. These stories navigate the complexities of polyamorous relationships, jealousy management, and building trust among multiple partners. The romance often involves established couples who invite a third person in, or three individuals who discover they work better together than in traditional pairs. Stories emphasize that love multiplies rather than divides when shared authentically. Discover stories where three hearts beat as one in perfect harmony.... 

Reading Lists

View all

Dive into romance book collections curated by our reader community.

Owned by the alphas

by Book mermaid

10 books

Owned By the Alphas Saga

by jkc146

12 books

Ophelia Bell

by Jeanetta

35 books

Reverse Harem Recommendations

by julieannd0609

31 books

Spicy fantasies with my “daddy”🌶️

by charming_elderberry_026

10 books

Owned By The Alphas

by LouiseC93

12 books

Ophelia Bell

by mcmg70

25 books

Twin dragon series

by cherrycoke_21

9 books

Ophelia bell

by Alexbumgarner89

25 books

Ophelia Bell's books

by VirgoWoman825

31 books

Owned by the Alphas series 9 books

by JamieLynne

9 books

Discovering us series

by Heidi

11 books

Ophelia Bell

by Elisaej

9 books

Three: the perfect number

by Aneca09

4 books

C.Swallow&M.C.Claire

by Kricketlyn

14 books

Discover Galatea

Cold Case PursuitThree Courageous WordsBidding on Her BossHeat of PassionFull Force

Newest Publications

Christmas K-9 GuardiansDangerous Christmas InvestigationColorado Christmas SurvivalChristmas Cold CaseTaken at Christmas