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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.

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.

Fallen Crest Book 1: Fallen Crest High

Fallen Crest Book 1: Fallen Crest High

by Tijan

Mason and Logan Kade are two brothers who did their own thing. They were rich and expected to attend Samantha's school, Fallen Crest Academy. They chose public school and now she has to live with them. The problem is that she doesn't care at all: about them, about her friends, about her cheating boyfriend, or even about her parent's divorce. But maybe that's a good thing. Maybe change is a good thing. This book contains adult/mature young adult situations.

Good for Me

Good for Me

by Sofia Jade

Rory never expected her mom’s new marriage to change everything—including giving her a stepbrother she can’t stop thinking about. Forrest is grumpy, gorgeous, and the one person she should never want. They fight the tension, but one night shatters the fragile line between them. Years later, Rory returns to town with a ring on her finger and secrets in her heart. Forrest swore he’d buried his feelings, but seeing her again proves nothing has changed. The pull between them is still fierce, still dangerous, and this time he refuses to stand back. Off-limits has never looked so tempting—and resisting might just be impossible.

Taming Harley

Taming Harley

by A. K. Adam

Harley Anderson is chaos in eyeliner and combat boots, forced to swap freedom for family when she's sent to live with her estranged mom in California. The real curveball? Her new housemate: Chase Davenport—grumpy, gorgeous, and unfortunately her older stepbrother. He’s all sharp suits, sharp stares, and no time for Harley’s attitude. But when their parents vanish on a honeymoon cruise, these sworn enemies are left home alone. One accidental glimpse into Chase’s dark, controlled world changes everything. Now, the fire between them is impossible to ignore… and Harley’s about to learn just how dangerous it is to play with something you don’t understand.

My Sexy Stepbrother is a Werebear

My Sexy Stepbrother is a Werebear

by Kelly Lord

My sexy-ass stepbrother is going to be the death of me.

When my mom decided to marry his hillbilly dad, I was pissed.

I mean, their woodsy cabin doesn’t even have Wi-Fi. Not kidding.

But then I actually met my new stepbrother, Sam. And fuck… He’s totally hot. And into me.

Which is totally gross. Even if his abs are to die for. And his smile is amazing. And he’s good with his hands. And who am I kidding? He’s an adonis.

It’s no surprise that, after our parents’ wedding, we slipped up and ended up making out on the living room floor. Now I’m screwed. I’m addicted to his sculpted body.

And that was before I learned his furry secret.

Who would have known the beast between his legs wasn’t the only surprise in store?

Age Rating: 18+ (Kidnapping, Murder)

Alien Step-Brother

Alien Step-Brother

by Raven Flanagan

Since her parents’ divorce, Nova has suffered from debilitating timidity and an inability to tell anyone what she wants. So when her dad moves on with a new Dragaken wife, it hurts. And having to meet her on alien cruise ship for the first time? Even worse. But that all changes when Nova meets her step-brother, Alek. She’s never wanted anything more. When Alek reciprocates, Nova is tossed headfirst into a confusing hyperwarp of danger and desire. But on this weeklong family bonding trip, there’s no telling which side of her will win out—will Nova adhere to her human taboos, or will she finally drum up the courage to pursue her happiness and go after what she wants?

Artemis' Gift

Artemis' Gift

by M. Syrah

I didn’t mean to mindlink the lycan king when I was in danger. I meant to reach out to my werewolf brother. Apparently my special abilities for a weak human, granted by Artemis, aren’t that helpful. Because now I have an angry lycan king at my back while I’m dealing with vampire attacks.

Age Rating: 18+

The Billionaire's Dirty Laundry

The Billionaire's Dirty Laundry

by S. L. Adams

Kinley swore she’d never step foot in her stepfather’s house again. It's been sixteen years, and her wounds are still raw, preventing her from having the life she wants. Harland was content with his bachelor life in New York City, but now his father and stepmother are dead. Can the two stepsiblings manage to overcome their hatred and share an inheritance—and custody of their twelve-year-old half-sister?

Age Rating: 18+

Mr. Boss Man

Mr. Boss Man

by Mandy M.

When Jenson returns home from college, he discovers he has a new stepmother and stepsister, Skylar. Thrust into running the family business together due to a sudden merger, Jenson and Skylar must navigate their professional and personal lives amidst growing tensions and unexpected attractions. As they face challenging clients and family dynamics, their relationship evolves in ways neither anticipated, leading to a series of dramatic and passionate encounters.

FGI 6: The Palace of Frost

FGI 6: The Palace of Frost

by F. R. Black

A master martial artist with a lucrative modeling career, Hiro has always wished her glamorous roles could continue off the set. Enter: Fairy Godmother, Inc. One quick signature, and Pierce whisks her away to take on the role of a lifetime—hers forever if she can initiate True Love’s Kiss with a fairy tale king. But what if her heart pulls her in another direction?

Secrets

Secrets

by S. Fern

Shay’s dreams of becoming a doctor like her dad and brother are dashed one fateful night, but she uses the resulting notoriety to rebuild her life, becoming a successful Instagram model and clothing designer. She’s always been open about her plans to stay a virgin until marriage, but when she meets Ethan, a notorious womanizer, he puts her resolve to the test. Will the secrets that brought them together drive them apart?

Age Rating: 18+

HomeCategoriesStep Siblings Romance Books

Step Siblings Romance Books

Step Siblings Romance Books explore the complicated dynamics when attraction develops between non-blood-related family members. These stories typically feature characters who meet as adults when their parents marry, creating forbidden attraction within blended families. The romance navigates family loyalty, social taboos, and the challenge of loving someone who's technically family but not by blood. Explore stories where forbidden attraction becomes undeniable love.

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