Best Step Brother Romance Books

Delilah thought she married the perfect man. Charming. Respectable. Devoted. But then she discovered the man she trusted was a fraud — cheating behind her back, controlling her every move, and secretly stealing from the people who once believed in him. Her marriage wasn’t love. It was a trap. And when she lost the child she was carrying, alone, abandoned, and broken in a cold hospital bed, everything shattered. That’s when he returned. Thorne Weston. The estranged, adopted brother her husband never spoke of. The boy who once made her college life hell — cruel words, wicked smirks and relentless taunts. He's her tormentor. Her shadow. The one who looked at her like he wanted to ruin her… and maybe always did. He disappeared after graduation. Vanished. Forgotten. But now he’s back — colder, richer, and far more dangerous. And he’s watching her. And when she breaks down in the hospital, barely breathing through grief, he corners her in the shadows and makes her an offer that freezes her blood — and sets her body ablaze. “You want revenge? I want you. Be mine… and I’ll destroy him for you.” She should scream. She should hate him. But hate doesn’t explain the fire curling in her belly every time he whispers her name. Hate doesn’t make her knees tremble when he steps too close, smelling of smoke, leather, and sin. And hate isn’t what makes her crave the rough, twisted salvation only he can give. Because Thorne Weston is no longer a cruel boy with a chip on his shoulder. He’s a man forged in violence. Obsessed. Possessive. Unhinged. And he doesn’t just want her — he owns her. Body. Soul. And every shattered piece her husband left behind.

Abducted at the young age of 10, groomed by a mistress specialized in raising girls for special duties and catering to needs of sick depraved men, Isabella Blanchet had her life planned out for her before she got the chance to dream and make wishes. That was until she crossed paths with him, Dante Moretti, the ruthless Don of the Moretti family. A legend to some, a scary bedtime story to get children in bed and a nightmare to all who crossed him. Some would go as far as calling him the boogeyman. Would he succeed in sinking her into the darkness or will she be the only ray light in his dark world?

Synopsis : Bedroom, washroom, living room, office, elevator, there wasn't any place left where they didn't make out. However, everytime she did that* with him, she felt guilty, disgusted as the person was her sister's husband. She tried hard to avoid him, but he didn't let her escape from him. It wasn't she who wanted to cheat her sister by making out with her husband, it was he who continuously forced him on her and she simply couldn't resist him. This story is about Dimple who was having sex everyday and night with her own sister's husband, and her sister, Twinkle was completely unaware of her husband and sister's betrayal. Read the story to know what will happen when Twinkle finds about her husband and Dimple's sin.. How will she react? More importantly how will Dimple face her own sister? So, at last who will ends up with the playboy Arav singhaniya, who was messing up with these sisters, marrying to one sister, and having relationship with another?

I grew up calling him Uncle. My father’s best friend. The man who built an empire, a billionaire everyone feared in business… but who always softened around me. Now I’m no longer a little girl. And when I return home, his eyes linger too long, his voice dips too low, and his touch makes me burn in ways that should never happen. He promised my father he’d protect me. But the way he looks at me now? Protection is the last thing on his mind. I know he’s dangerous. Older. Forbidden. But every time we’re alone, the walls close in and the line we can’t cross begins to blur. If my father ever finds out, it will destroy everything. But what if I don’t care anymore? Because when a billionaire this powerful decides he wants you… How long can you resist before you’re his?

In Bannister Academy, there was an ultimate bully named Cahleen Seth Monteserio that was admired by everyone despite of his bad attitudes. However, Shantal Farah Lindzbergh the scholar of the Academy was never attracted to him. They were like cats and dogs that always fight whenever they see each other. But behind those actions that they flaunt to each other, there was a hidden chemistry that was going on between the two of them. The bully that was known as the clever one will change his life for the girl who captured his heart. While the simple girl that was nothing to worry about was having a hard time on a guy that caught her attention. He, secretly adores her. She, undeniably loves him. It was the beginning and end of everything.

“If I understand you perfectly, you mean Malcolm is in a wedding hall filled with guests, waiting for his bride to arrive but there is really no bride coming?” I recounted. F*ck! ...... To save her Family name, Noelle had no choice but to get married to Malcolm after his bride bailed on him. Malcolm does not seem to appreciate that fact as he feels that Noelle took his love, Emery away from him. She is no longer the girl he used to adore and love, but the girl he now despise. Will Malcolm ever be able to forgive Noelle and what happens when he supposed wife is found dead?

When your ex, a hockey player, begged for your forgiveness in front of everyone, making a scene, You were both awkward and angry as the team erupted into a chorus of gossip. Just when you were speechless and didn’t know what to do, The famous hockey captain raised his voice and said, “Enough. She is mine.”

"Let's be clear. While I stay here, no kissing, no hugging," Aiden Anderson said without breaking his gaze at Jessamine, his best friend since third grade. "You're my best friend... You're like a sister to me and my only family. I don't want to be reckless and lose you in the end." "I was only teasing you, Aiden. I'm not losing you as well. You're the only man I trust besides my father," Jessamine assured him. Jessamine turned her back on him, fighting the tears, unsure why her heart was disappointed. A part of her brain said she would rather die with heartache than admit to him that she wished there was more to their friendship, but her heart screamed something else. She wanted to be reckless with him and gave her heart the freedom to love him more than best friend, but how could she admit to him she loved him when Aiden assured her he would disappear from her forever if they crossed the boundary of their friendship?

“I hope you're not fooled by my sweet looks Clair?” Emelia pushed her out her way, before closing the door, she stopped, turned, and stared at her from head to toe. “Don't be mistaken, I do want a man in the streets but a beast in bed” Poison to death by her husband and lover, Emelia Zorah is granted a second chance at life. She wants nothing but to stay as far away from him as possible, 5 years ago she had loved him but now was different. She despised even the air he breathed. Escaping the lights of marriage from her destined mate, she lands in his brother's arms, but what seems like a saving option in time turns out to be the blazing fire she dived from the firepan into.

Ginny never expected one wild night to upend her entire life. What was supposed to be a carefree celebration turns into a morning of regret and a hastily scribbled note from a man she’ll never forget: "You're really something for a first-timer." Horrified, Ginny tries to move on, boarding a flight to New York, where her future awaits. But fate isn’t done with her yet. "Meet Raymond, my new husband!" her mother says with a proud smile. Ginny’s heart stops. Standing before her is the man from that unforgettable night. Her mother’s new husband. Her stepfather. Caught between the tangled threads of family and forbidden attraction, Ginny’s world spirals out of control. Can she keep her shocking secret hidden, or will the truth tear her family apart? For readers who crave romance with an edge, this story will keep you hooked until the last, breathtaking page. Specifically for 18+