None POV:
Adrien's grip on Luka's wrist was tight, his knuckles white with rage as he twisted Luka's arm until he grunted in pain. Marinette stood behind him, her anger still simmering, but Luka always the smirking bastard looked up at her like he still had the upper hand.
Luka: You know what, Marinette? You always were too naive. Too soft. Thinking I would actually stay loyal to you and wait for your fucking love. Fuck that. Lila? Yeah, I fucked her, and I was right to do it. She's a better lay anyway. You couldn't keep me satisfied.
His words hit like a wrecking ball, but Marinette's eyes were blinded with fury. Luka's smirk was still there, as if he believed he would won this twisted little game
Luka: you were never enough for me. Just a tight little....
Adrien's fist punched Luka's face before he could finish that sentence, the impact echoing through the room. Luka staggered, blood already spilling from his split lip, but Adrien wasn't done. Not by a long shot.
Adrien: you fucking piece of shit.
The blond yanked Luka forward by the collar, slamming him against the wall. Luka barely had time to register the impact before Adrien's fist collided with his jaw again, harder this time, sending Luka stumbling to the floor. The smirk was long gone replaced by fear and panic
Adrien: you really thought you could just walk away after saying that shit? You think you can talk about Marinette like that and keep your dick intact?
Luka groaned, clutching his bleeding face, but Adrien wasn't giving him a second to recover. He was on top of him in an instant, straddling him, fists raining down like hellfire.
Luka's arms flailed, trying to block the hits, but Adrien's rage powered strength was relentless. Each punch landed with a sickening crunch, breaking Luka down piece by piece.
Adrien: you think cheating with some trash like Lila makes you a man? Nah, you are just a fucking pussy hiding behind your lies, hoping it makes up for your tiny dick
Another punch. Luka's nose snapped audibly, blood gushing down his face. Adrien grabbed him by the hair, yanking his head back so Luka had no choice but to look him dead in the eyes.
Adrien: you disgust me. The fact you even touched Marinette? Makes me fucking sick. But don't worry. You are never getting that chance again.
Luka coughed, spitting blood across the floor, his cocky attitude shattered. But he still managed to choke out some pathetic words.
Luka: you... you can't... stop me.
Adrien let out a dark laugh, the kind that sent chills down Luka's spine. He leaned in closer, his voice a low growl.
Adrien: oh, I'll do more than stop you, asshole. I'm Adrien fucking Agreste, I'm a billionaire with a B. I got the power to ruin your whole fucking life. You will be lucky if you even get to mop floors after I'm done with you. So go ahead, show your face again. Talk about Marinette again. I fucking dare you.
Adrien slammed Luka's head against the ground one last time before standing up, his chest heaving, hands dripping with blood. He wiped his hands, eyes still blazing with fury as he towered over the beaten, trembling mess that was Luka
It was then that Adrien heard her, Marinette's soft, shaking voice
Marinette: Adrien... please.
He turned to her, and the sight of her tears hit him harder than any punch could. She was trembling, trying to hold it together
Adrien immediately softened. He stepped away from Luka, walking over to Marinette and pulling her into his arms.

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Emma's Nanny
FanfictionAdrien needs a Nanny for his little Emma as he is a lonely dad and busy businessman after he divorced his wife but it was hard for him to find one for some naughty reasons For his biggest Adrien started to like Marinette whenever he see how she is t...