Why Did MT Mafia Husband Marry But Love Stepsister?

Isabella Martinez's father died when she was eighteen years old. She had been separated from her mother at an early age and had no knowledge of the business her mother was involved in with her new husband. After her father's death, she is pushed into her mother's world, where she meets her husband and her husband's son, Alex. Alex is unlike any male she has ever encountered; he is cruel and demanding. He's harsh and intimidating. Alex was known to instill dread in individuals merely by glancing at them. Isabella is unaware that he is the world's most dreaded Mafia Don. Alex claims Isabella is his own the instant his eyes meet hers. Her stepbrother is a womanizer who astonished everyone when he claimed Isabella. Isabella is terrified and despairing; will she learn to accept her stepbrother into her heart? She shouted out, "Y-You can't do that." ❝You are my brother.❞ He chuckled at her as his fingers gripped her tiny lace underwear. ❝I am not your brother, neonata.❞ His lips were on her neck, nibbling her skin and moving down to her breast. ❝ Why are you doing this? She asked, biting her lip as his tongue touched her bud. ❝ Because you are mine.

My sister-in-law sent me a photo of her kissing my husband on the beach. Just a few minutes later, she deleted the photo and sent me a text saying, “Oops, sent to the wrong person. Lol.” I knew it was deliberate. It was never a mistake. She wanted me to see how happy my husband was with her. Clara was never my sister-in-law. Three years ago, my husband had lied about her, claiming she was his younger sister, and I believed him. But after five years of marriage, I discovered—far too late—that Clara was never his sister. She was his mistress, his childhood lover, the woman he had been sleeping with under the same roof as me while making me serve her as if she were truly my sister-in-law. And now what? He had lied again… said he was going on a business trip. Yet Clara had just sent me a picture—a cute, sickening picture—of my husband happily kissing the very woman he had once claimed was his younger sister. The photo carried a timestamp showing the exact time and location. It was real. There was no denying it. They were in Hawaii, on a beach, laughing, kissing, and having the time of their lives… while he had made me believe he was away on business. Without saying a word, I saved the picture and posted it straight to Instagram, captioning it: "Congratulations to my sister-in-law… on finally becoming the official wife.” Then I turned off my phone and went to bed. The next morning, after having breakfast with my cat, Lulu, and taking the warmest bath ever, I turned my phone back on—and froze. Over 200 missed calls were waiting for me. Notifications exploded across my phone. And it didn’t stop there—the number of unattended messages kept climbing past 250.

He is 38, cold, calculated, brutal. A mafia king with blood on his hand and no room for softness in his world. She is 21, reckless, untouched. The forbidden stepsister he never wanted, but now he can’t stop thinking about her. When a contract forces them into marriage meant to protect the family’s legacy, she becomes his most dangerous temptation. He tell himself it’s just duty. She swears she hate him . But the tension between them is a ticking bomb. He’s twice her age. Twice as cruel. And once he claims her, he won’t let go. In a world of gun, power, and unspoken rules, she the only thing he can’t control. And the one thing he’ll burn everything to keep.

On the third anniversary of our engagement, my fiancé—Dominic Corleone, heir to one of the most powerful Mafia dynasties in New York—told me he was not ready to form a new family so that our wedding would have to postpone. I told myself to wait for some time, the bond between the Corleones and the Valentinos—our families’ sacred alliance—would hold us together. But what followed were his endless betrayals and tortures. I walked into a bridal boutique and saw him laughing with Liliane, the childhood friend who always lingered too close. I watched him destroy the wedding gown I had spent months designing—then crush my hand beneath his heel until it bled. And when I thought I had hit rock bottom, he proved I was wrong—by getting behind the wheel and running me down. He thought I’d beg and cling to him, terrified of losing the Corleone name and privilege that came with it. But instead, I made one phone call and insisted firmly on canceling the engagement. However, that call didn’t just end a marriage arrangement. It unearthed a secret that had been buried for over a decade…and turned a marriage born of duty into a story of dark devotion.

When I turned 18, my mother married my stepfather, a retired mafia kingpin, and I moved with her into a luxurious mansion. Just when I thought my life was heading toward happiness, my stepbrother, the new mafia boss, stormed into my life. He was like a devil, with delicate eyebrows, a high, sharp nose, and lips that were always tightly pressed together beneath a cold expression. Every time our eyes met, I felt a chill run through me, making it hard to breathe. I tried my best to avoid him, but he had no intention of letting me go. “My stepsister, from the moment I first saw you, I knew I couldn’t let you go. You can’t escape—you’re destined to be mine.” I stared into his possessive eyes as his body pressed down on mine. “No, you're my stepbrother, we can't……"

On the third anniversary of my marriage to Leon Castellano, the most powerful mafia boss in Chicago, I waited for him alone all night in a cabin up on the snowy mountain. A blizzard had sealed off the mountain. The ice cream cake on the table melted down to nothing. I kept calling Leon, but his phone went unanswered. In the early hours, he finally called back, his voice rough with drink. "Sorry. Cecilia's back. I went to pick her up from the airport and forgo our anniversaryt." He left me stranded on that mountain all night. I walked down alone the next morning, and a ranger passing by picked me up in his truck. He didn't know that after that night, I took off my wedding ring. He didn't know that the woman who'd stolen my credit for saving his life was tearing our marriage apart, step by step. That day, Leon slammed the divorce papers down in front of me, his words dripping with disgust and scorn. "Who do you think you are, claiming the credit for Cecilia's kindness to me? She is the sole legitimate heir of the Rosse family, and you? You're nothing but a mistress's bastard! If you hadn't deceived me back then, I would never have missed out on all those years with her!" Something in me finally let go. I signed the papers, faked my death, and flew off into the Sicilian night without looking back. Three years later, I met him again as the princess of Europe's Moretti family. And then Leon was the one full of regret.