Best Stepbrother Romance Books

I was a fat, orphaned Omega girl. At 17, my stepbrother discovered my diary—filled with shameful fantasies about him—and from that moment on, he couldn't stand the sight of me. Now my stepbrother is back, graduated, and we ended up having a one-night stand.But he kept humiliating me, saying he only slept with me because of the mate bond.Then he announced his engagement to a highborn beauty. And just when I thought it couldn't get worse? I'm pregnant. I ran away, heartbroken and heavy with his child, never imagining he'd regret it—begging me to come back at any cost...

She is claimed in a passionate kiss by her stepbrother in a moonlit field, on her eighteenth birthday—the moment their true mate instincts ignite. Raine Bittley has never truly felt at home, especially since she and her mother moved to the Shadowfang Pack when she was eight. There, she's not just considered an outsider, she's hated and bullied, especially by one person–Killian Knight–Heir to the Alpha, and the most arrogant man she's ever met. Now, Raine's life is upside down. From unwanted outsider to the Pack's condescending Luna. But with that title come darker secrets. And how does one escape fate… when fate is the man she hates, yet simultaneously burns for?

"We shouldn't be doing this" said a broken whisper filled with desire… * Finding a way to escape her tortured family, Rayla thought that her prayers were soon answered as the moon goddess finally paired her with a mate. All seemed pleased except for her stepbrother who has made it his life mission to bully her. She is usually unbothered by him until one night when he came into her room with broken knuckles, causing her to begin to see him in a different light. Her dreamy bubble gets busted however when her mate suddenly rejects her in front of the whole school the following day, with no explanation whatsoever, …And her life takes an even bigger turn when stepbrother claims her in front of the whole school as his mate. Their relationship is forbidden and tagged as an abomination. And he knows this, but he just doesn’t care!

Nineteen-year-old Adele McAllister has a secret crush on her twenty-six-year-old stepbrother, Killian Black, who was the silver-furred Beta of a hidden werewolf pack. Killian has spent months hiding a secret and suppressing a forbidden-love attraction for the girl he considers to be his stepsister until the night he rescues her from a predatory stranger at a club. The ice between them doesn't just melt; it incinerates, revealing the secret that Killian is a member of an undercover werewolf pack. To save Adele from being killed or having her memories erased by the pack’s iron-fisted Alpha, Killian initiates a mating bond with his stepsister, dragging her into a supernatural world of secrecy and jealousy. As Adele undergoes a series of grueling, trauma-filled trials to prove her worth to the pack, the sexual tension between the "step-siblings" reaches a breaking point. Defying the Alpha’s direct orders, they give in to a night of raw, unprotected sex that strengthens their bond but paints a target on their backs. With a jealous rival seeking to sever their mate bond and a conspiratorial uncle plotting their demise, Killian and Adele must choose to uphold the laws of the pack or burn it all down for a love that was never meant to be.

After losing her mother to royal games and securing her revenge, Alba Crane leaves Ketria after her eighteenth birthday, carrying two dangerous secrets. Eight years pass, and a coincidental meeting with her stepbrother, the new Lycan king, has her back where she lost everything, chained and bound for his revenge as he unravels all her hidden secrets. Marko Ivanov desires to be the greatest ruler of Ketria. He would do anything for his dream to come to fruition; right the wrongs of his father, marry the perfect queen that would strengthen his Kingdom, and live a repressive scandal-free life. However, all his efforts shatter at the realisation that the person he hated most in the world, his irresponsible 'runaway' stepsister, is his mate. Blinded by his desire for revenge for the havoc she wreaked before her departure, Marko keeps Alba bound to Ketria using everything he can, including their mate bond. When using the lust between them as revenge spirals beyond their control, blurring the lines between love and hate, their inevitability dawns. Will the two enemies in heat reconcile their differences to find a way for the existence of their scandalous happy-ever-after, or will they settle for dragging each other to ruin at the cost of everything? ** "Which part of him aroused you? Or was it that you played naughty games under the table?” "Is that something you should ask your sister?” "Step.” The Lycan King growls in correction.

For six years, my stepbrother Draven, the heir to a mafia family, and I have been in a secret relationship. Every night, his hands would trace every curve of my body with desperate hunger. The way he would look at me in those intimate moments made me believe I was the only woman who could ignite such passion in him. Until a month ago, when I found out I was pregnant. The day before Valentine's Day, I snuck into his study, planning to surprise him. Through the crack in the door, I heard him talking to Nico, the family's consigliere. "Aren't you tired of your little stepsister, Jasmine? The engagement is right around the corner. You haven't actually fallen for her, have you?" A cruel smirk played on his lips. "Fall for her? She was an easy target who fell right into my lap. It would've been a waste not to take a bite." "Her mother drove mine to an early grave. These six years have been her penance. And she's deserved every moment of it." "Besides, I've said it before. My wife will be Bianca Tyler, and no one else." "Marrying her secures the Tyler family's port smuggling routes. That's all that matters." So, what I thought was love was nothing more than an elaborate act of revenge. Every one of his embraces was a calculated lie. Fine. It was time for me and our unborn baby to disappear from his world completely.

Candice Harper’s world shatters when her mother remarries billionaire Sanna d’Agostino just weeks after divorcing her beloved father. Uprooted from New York to a glittering Los Angeles mansion, the 17-year-old senior vows to endure one year of this gilded cage before escaping to college—and freedom. But freedom becomes a distant dream the moment she locks eyes with her new stepbrother: Mantovani d’Agostino, the infamous mafia underboss hiding behind a polished facade of wealth. Mantovani is a storm wrapped in control—ruthless, volatile, and haunted by a darkness he refuses to name. Ordered by his father to play English teacher at Candice’s elite academy while hunting the sheriff dismantling their empire, he plans to despise the innocent girl invading his world. One glance at her fragile beauty among the lilies, however, ignites a forbidden fire he can’t extinguish. She’s off-limits. She’s, his stepsister. Yet every shared breath in their opulent prison tightens the noose of desire around his throat. As Candice navigates a life of bodyguards, paparazzi, and a mother obsessed with status, she’s drawn to the brooding enigma who fleas from her presence yet watches her like she’s prey. Strange midnight visits, heated glances, and whispered commands blur the line between protection and possession. Mantovani fights to bury his hunger, but the mafia’s shadows creep closer—enemies circle, secrets unravel, and a single misstep could destroy them both. In a world where loyalty is blood and love is a death sentence, Candice and Mantovani must choose to surrender to the inferno threatening to consume them… or burn the empire down trying to resist.

Muling nagpakasal ang ina ni Reign—at kasabay noon, bumalik ang damdaming matagal na niyang kinalimutan. Sa mansyon ng bagong asawa ng kanyang ina, muli niyang hinarap ang lalaking minsan nang naging buong mundo niya. Si Michael— ang lalaking minahal niya bago pa ito naging bawal. Ngayon, isa na siyang kasalanang hindi dapat lapitan. Isang pagnanasa na kailangang tanggihan. Habang pilit niyang nilalabanan ang nararamdaman, mas lalo naman siyang nahuhulog sa lalaking hindi niya dapat mahalin. Dahil kung minsan, kung ano pa ang bawal, siya ring pinakamasarap tikman. He’s the sin she can’t stop craving.

Theo has a plan, keep his head down, win games, and land the scholarship that could change everything. There’s just one problem… his new sponsor only supports out-and-proud LGBTQ+ athletes, and Theo isn’t out. At all. On impulse, he lies. Says he’s already in a relationship. With Hunter His tattooed, sharp-tongued, rule-breaking new stepbrother. But the longer the lie lasts, the harder it is to ignore the tension between them. The smirks. The touches. The way Hunter looks at him like it’s not fake at all. It’s forbidden. It’s dangerous. And it might be the realest thing Theo’s ever felt.

Ryder, Alex, and Logan, three incredibly attractive and wealthy billionaires, were known for their playboy reputation and their ability to get whatever they desired. Bella and Ryder had been friends since childhood, thanks to their parents' long-lasting friendship. Ryder, the leader of the mafia, had always been a "one and done" kind of guy, never believing in serious relationships. However, there was an undeniable chemistry between him and Bella. One night, their relationship took a passionate turn, and everything changed between them. Now, they faced a dilemma: should they confess their true feelings for each other or pretend to be friends with benefits, keeping their emotions at bay? Alex, the mafia boss, found himself forced into a contract marriage by his father in order to seal a business deal. He didn't have any affection for his bride, as the marriage was completely against his will. However, when he saw her for the first time, he couldn't deny her attractiveness. Soon, she discovered the truth behind their marriage and decided to leave him, despite being pregnant with his child. Will Alex let down his guard and accept his true feelings for her, or will he continue to resist? Logan, the powerful don, encountered a captivating woman who instantly rejected his advances. Never used to being turned down, Logan made it his mission to make her his, using any means necessary. But will he play fair in his pursuit of her, or will he resort to underhanded tactics to win her over? Find out in the story with lots of BDSM scenes which will make you feel the heat.