Threesome Books

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

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+

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.

"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.

Madison thought she had it all figured out—until her boyfriend decided to have an affair with her best friend (ouch, right?).

But who needs a lying ex when you’ve got two insanely hot, totally off-limits twins who’ve been making your heart (and other things) race since forever? 🥵

Ethan and Levi are trouble in all the right ways, and when they reveal their feelings, things get hotter than a bonfire. Navigating a steamy, scandalous love triangle? Check. Uncovering juicy family secrets? Double check. This is one wild ride, and Madison’s about to find out if three really is a crowd… or just right. 😏🔥

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.

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.

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.

I found myself unconsciously leaning closer to him. Despite being kind of nerdy, he was in good shape. Muscles everywhere filled out his clothes nicely.

How did you feel when you started a new school? Nerve-racking, right? Making matters worse, imagine that your new school is full of supernaturals. That’s what happens to Catalina. She’s not sure she belongs there until she finds her mates - Mateon, Lucien, Nick … Wait, how can one have so many mates?

Age Rating: 18+

Rejected by the Alpha Twins she loves, Olivia Wilson decides to leave the known behind and embark on a new path. She joins the Lycan Academy and meets Leo, who promises her love free from hierarchy. But when lycan business calls her back to her old pack, a daunting choice looms: stay with her chosen mate or reconcile with the Alpha Twins who broke her heart. Secrets swirl, consequences await. Which path will she take?

Age Rating: 18+

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.”

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.

Mafia brothers Max and Dimitri have no problems taking what they want. When good girl Kyle is forced into a life she never wanted to be part of, she finds herself questioning everything she knows about life, love, and the mob.

Age Rating: 18+ (Content Warning: Rape & Violence)

“Stay here, pet.” Dane’s eyes were filled with lust. “Stay with us. Be ours. Meanwhile, Aneurin was looking at me like I was the most beautiful girl in the world. Be theirs? Stay with them? Their touch fogged my mind. And before I knew it, his lips were on mine.

Summer, a fiercely independent princess, suddenly finds herself in the clutches of domineering and tantalizing Twin Dragon Lords. Can she save herself and her kingdom, or will she fall for their darkly seductive charm?

Age Rating: 18+

Austen lands a job at a top firm that offers more than just health benefits. Her new bosses are hard-headed, hot, and very interested in her. Can she juggle a relationship with them both and keep her job?