Underworld Fanfiction Crossover

"You are mine. And no one can own you except me," Dimitri commanded, his voice cold as ice. "I am not your property," Natasha shot back, her eyes burning with defiance. "You have no right to own me." But in the dark underworld of the mafia, rights don't exist. Only power. Dimitri Volkov is a ruthless Mafia billionaire who controls everything- his empire, his enemies, and now her. When he takes Natasha captive after a violent warehouse massacre, he expects her to break like everyone else. She refuses. She fights. She challenges him in ways that ignite an obsession he can't control. Natasha is trapped in a golden cage, caught between two impossible choices. She came to his world for a reason- to access secrets that could destroy him completely. But as Dimitri's possessive love deepens and his obsession consumes them both, staying becomes harder. Leaving becomes impossible. Some prisons are built with steel. Others are built with desire. In the end, love might be the most dangerous cage of all.

Elena Ashvale was born cursed or so the wolves believed. A half-blood carrying both human and werewolf blood, Elena grew up as an outcast in Pack Blackthorn, enduring humiliation in silence while serving those who despised her existence. At nineteen, her fate shattered on the night of the full moon when Alpha Caelan Blackthorn rejected her without hesitation, declaring her unworthy to be his Luna. Broken and abandoned, Elena fled beyond the pack borders, unaware that her rejection had awakened something far more dangerous than exile. Lucien Noctyrr Valecrest, the Beast King, ruler of all living beings felt it the moment her bond was severed. At 25, bound by ancient laws that forbade him from ever taking a mate, Lucien recognized the impossible truth: Elena was his. A forbidden mate. A bloodline erased from history. And a power capable of healing even curses born from the Underworld itself. In a world where a King is not allowed to love, Elena becomes the one who threatens the laws of fate. Rejected by an Alpha. Claimed by a King. And destined to change the werewolf world forever.

In the ruthless underworld of New York’s Italian mafia, peace comes at a deadly price. When Luca Rossi, the cold-blooded heir to the Rossi empire, executes the Vitale family’s prized soldier, war erupts between the two most powerful crime families. To prevent total annihilation, a marriage alliance is forged but the Vitale don offers something no one expected: his defiant, openly gay younger brother, Alessio. Luca has spent his life burying his desires beneath layers of violence and duty. Marrying a man is unthinkable in their traditional world yet refusing means rivers of blood. Alessio, beautiful and unbreakable, is delivered to Luca like a sacrifice… or a weapon. What begins as a contract of convenience explodes into obsession. Stolen touches in penthouse shadows. Whispered praise that shatters Alessio’s walls. A possessive love neither man saw coming. But in a world built on betrayal, someone is plotting to tear the fragile truce apart and kill the newlyweds before they can claim real power. Two men bound by vengeance. One love forged in fire. Only one question remains: will they rule together… or die trying?

In the shadowy depths of Italy's criminal underworld, Lucas Firmino is well known for being ruthless. Feared by all rival mafias, he eliminates threats without hesitation and acknowledges no authority. Successfully reclaiming his seat as the tough mafia boss, Lucas is a force to be reckoned with. On the other side, Camila is a committed carer, willing to go to any lengths to protect her baby brother, Camillo. Her sole aim is to ensure his happiness, and she remains resolute in her commitment, even if it means sacrificing her own well-being. Caught in a complex web of loyalty and betrayal, Camila's world is upended when her father, known as Papa, engages in concealed dealings that lead to her being pushed into an arranged marriage with Lucas. The unexpected union between Camila and the ruthless mafia boss sets the stage for a tumultuous journey. As Camila steers the disloyal waters of her forced union with Lucas, the promise she made to protect her brother hangs in the balance. Will she find a way to uphold her commitment amidst the chaos, or will Lucas's influence force her to break the very promise she made to protect her brother? Find out more in the story.

"I-I T-That was" she couldn't form the right words because of fear. Fear of getting exposed, fear of being caught. The Secret she was buried deep inside her about to expose in front of him, which she never wanted in a million years. "Sssh" the rough pad of his thumb caressed her soft lips while his big veiny hand held her waist with a steel like grip only to close her eyes helplessly. "Let me taste you Sweetness" , with that crashing his lips on her sealed her fate with him, unaware of the consequences. Isabella Watson, a beautiful 23 years old girl. She is the epitome of beauty any man can die for. She left her homeland just to put herself into the devil's den. Alexander Kingston, a 30 years old handsome bachelor. The youngest billionaire of the country is also a ruthless mafia King of the underworld . He is known for his manipulative mind and rudeness. He is living his life just to destroy the person who snatched his beloved one. Her Secret, a heartbreaking tale of her innocent soul. A tale of her misery and his revenge.

On her eighteenth birthday, Luna expected a fated mate; instead, she received a death sentence. Publicly rejected by Alpha Kael of the Silvercrest Pack, the "useless Omega" is left for dead in the snow. But Luna doesn't die. She vanishes, carrying a secret that could rewrite werewolf history: her blood runs silver, marking her as the lost heir to the Alpha King. Five years later, the Omega is dead, and a Goddess has risen. Luna returns as a world-renowned biochemist and billionaire CEO of Blackwood Industries, backed by the most terrifying man in the supernatural underworld: Dante Blackwood, a rogue billionaire who treats her like a queen and kills like a monster. When a lethal virus strikes Silvercrest, the pack is forced to beg for Luna's help. Kael is haunted by the ghost of the girl he threw away, but the woman who returns doesn't want his apologies—she wants his empire. As the mate bond claws at Kael’s sanity, Luna must choose between the destiny that broke her and the "Monster" who put her back together. In a world of teeth and title, the Omega won’t just survive; she will reign.

My best friend breaks down and accuses me of skimming family shipments, which cost us billions. Without hesitation, my fiance, Don Scarpa Falcone, points a gun at me. The bullet grazes my ear. He sends me to prison himself, then gets engaged to my best friend instead. Before I'm taken away, the family butler begs him, "You raised her yourself. She's your fiancee. You can't just ruin her life like this!" "Break the rules, and pay in blood," he says, polishing his gun. "As for her future, I'll decide that later." Five years later, I walk out of prison. The entire Falcone family is waiting at the gate with him, as if my freedom were a handout. "Looks like you've learned your lesson. It's time to return and get back to work. Don't do anything stupid again," he says. I ignore him and walk straight to the stretch Lincoln behind him. The door opens. Chris Corleone, the king of the Aurelian underworld, raises his glass to me. "Welcome back, partner."

Cravings was all it took… One moment, Samuel Preston was an ordinary college student. The next, he was snatched from his dorm room and thrown into the ruthless underworld of (THE BIDEN), an underground syndicate led by the elusive and brutal Teddy Vietnam. Known for trafficking drugs, dealing weapons, and orchestrating chaos against the military, The Biden doesn’t take no for an answer. Especially not from recruits. But Samuel isn’t just any recruit. He’s the son of the nation’s Chief of Defense Staff,a secret that could either be his greatest weapon or the reason he never sees daylight again. Determined to escape, Samuel does everything to sabotage their operations, only to catch the attention of Teddy himself. Cold, cunning, and feared by all… Teddy finds himself obsessively drawn to Samuel's fire, his resistance, his cravings for freedom. Trapped between a powerful man’s dangerous affection and the desperate yearning to return to his real life, Samuel must play a deadly game. Because in The Biden, love is war, freedom is forbidden, and craving the wrong thing might just get you killed. A dark romance thriller where power, passion, and rebellion collide.

His fingers ghost along her thigh, feather-light, promising ruin. 'Beg for it, principessa,' he murmurs against her ear, 'or I'll make you come until you forget your own name. Again.'" ______ In the shadowed empires of Europe, Elara Voss is the untouchable princess of the German mafia—beautiful, pure, and groomed for absolute loyalty. But beneath her poised exterior burns a secret craving for chaos. Dante Russo, the ruthless king of Rome's underworld, sees her once and obsesses. With eyes like black fire and a reputation for taking what he craves, he orchestrates her kidnapping on the eve of her arranged marriage, forcing her into vows at gunpoint. Now captive in his Rome penthouse, Elara is bound by his rules and if she breaks any, punishments are slow and sinful—teasing touches that leave her trembling, belts that burn, vibrators that torment until defiance melts into desperate whimpers and slick need. She fights back fiercely but every clash deepens the addiction. What starts as vengeance twists into craving, for both predator and prey. In a game of empires and betrayal, one question lingers—who will corrupt whom completely?

I stared at Stefano lying on the floor. "Hey, this may hurt a little," I spoke, trying my best to adopt a professional tone. Stefano groaned softly, his lips curving into a faint, almost bitter smirk as he muttered, "Wouldn’t be the first time you’ve hurt me, Bella." ** Forced to clear her sick father's debt to the italian Mafia and pay her father hospital bills, the 23-year-old nurse is forced to accept risky jobs like treating criminals in the dead of the night. On the day Bella Smith learns of the shocking news that her bedridden boyfriend, Robin, has been transferred to another hospital outside the country, she is heartbroken and decides to go for a drink. But when Bella is asked to treat a handsome stranger at the hotel room, she finds out the stranger is her ex-boyfriend from high school and now he wouldn't let her go. Stefano Carlo gets everything he wants, now he wants to make Bella suffer from leaving him in the past, but as they navigate a contract marriage, they find themselves rekindling old feelings and threading through the dark underworld of the mafia.