Which Other Series Showcase Sibling Relationships Like 'Locke & Key'?

The last place expected to see my last hookup was at my mother's wedding and worse, he's my new stepbrother. My mother and his father hoped we would get along, how do I tell them we have gotten along just not in the way they think? Extract: “Fratello,” he murmured, his lips curling into that maddening grin. “What?” My chest tightened. “That’s your safe word,” he said. “Say it once, and everything stops. I won’t touch you again. From that moment, I’ll only ever treat you as my stepbrother.” Even as he spoke, his hand gripped me, and I gasped, trembling. My body betrayed me, responding in ways I hated and craved all at once. “Until you say that word,” he whispered, eyes dark with something between amusement and hunger, “you’re mine. Mine, brother.” This is a dark mm romance with dub-con/CNC, blood play, knife play, robe play, light bdsm, kidnapping of MMC, torture, murder and possessive behavior. If you have any of these triggers, please do not continue. This book is only suitable for readers over 18. Contains graphic sexual scenes, bad language and unprotected intercourse.

She was always the good girl. Until heartbreak made her reckless. Elena Sinclair thought marriage meant forever. But five years in, her “forever” has become a gilded cage of pain and betrayal. She’s the wife who couldn’t give him a child. The barren disappointment. And for that, her husband offered her a cruel compromise… an open marriage. One that gave him the right to find someone who could carry his heir. The next day, he brought a pregnant woman home. The same woman who was first introduced as his cousin. The humiliation doesn’t end there, his mother lashes out… hurling insults and even fists, while her husband turns a blind eye. Not once has he defended her. Not once has he shown her love. She’s nothing more than a placeholder… a name on a marriage certificate. The cruelest part? She loved him. She loved him long before the vows, long before the lies… so deeply it blinded her to who he really was. Now, to make him jealous, she turns to the one man she should never touch: Jaxx Moretti, her husband’s younger brother. The dangerous one. The black sheep of the Sinclair family. The man who once made her high school years hell… and now has every reason to destroy her husband's legacy. What starts as a twisted game soon ignites into something raw, addictive, and completely forbidden. But Jaxx isn’t just her escape. He’s everything her husband isn’t. Because the deeper she sinks into Jaxx's bed… The harder it becomes to crawl back out. Content Warning: This book contains mature themes intended for adult audiences (18+), including explicit sexual content, toxic relationships, manipulation, and emotional trauma. Reader discretion is strongly advised.

"No stop. We should not be doing this. You are Noah's brother and my boss" Esme murmured and tried to push Leo away. But he didn't budge. He pinned her to the glass wall in his office and started kissing her. Her protests drowned with his kiss. ....... Esme stood on the Altar alone, waiting for the groom who dissappeared. Standing alone on the Altar on her big day should have been devastating. That too when the groom was her best friend of fifteen years and fiance of four years. She should have seen this coming. And she should be a crying mess. But she is not. Strangely, she is feeling relieved. Her gaze fixed on Leo Ashford, her Fiance's elder brother. The wrong brother she fell for. The brother she shouldn't be thinking about. The brother who is off limits. The last man to whom she shouldn't have lost her virginity to. 'I promise Esme, I will cherish you this time' she remembered Noah's promise from just a few hours ago. She felt bitter, because he couldn't even hold his promise for even a day.

When 18-year-old Sienna's dad remarries, she ends up living with 19-year-old Jaxon; her new stepbrother. He's broody, quiet, and always seems one step ahead. They clash right away, turning every little thing into a battle. But as tension builds, their rivalry starts to blur into something else. Something neither of them expected or are supposed to feel. And once that line is crossed... there's no going back.

Alpha Kate’s story continues in Alpha Siblings. Alpha Kate suffered many challenges on her way to finding her second chance mate, Alpha Colby. They are about to embark on their new life together when challenge after challenge interrupts their lives. Will they make it through the challenges together or are they doomed? Throw in the mix a sibling rivalry like no other and you have Alpha Siblings. This book is a continuation of Alpha Kate. To avoid any spoilers and to understand the story, it is recommended that you read Alpha Kate first. However, this book has been created so you can enjoy as a stand-alone book.

A typical teenage romance novel. Where the girl falls in love with the jock. But the only difference in this one is that the girl falls in love with her brother. "Why does what I do matter so much to you?" I asked curiously. He slammed his hand against the car behind me as he caged me in. He looked down at me with a scowl on his face, his tall frame hovering over me. "Because I care about you." He said loudly and his minty breath hit my nostrils causing me to gulp. I've never been this close to him before. Since the first day that he met her, he was attracted to her. But he had to keep his feelings a secret, for the sake of their family. She can't fall in love with him. So he needs to show her the worst parts of himself, because maybe then she'll hate him. BOOKS 1 & 2.