Not even the immensurable amount of alcohol in his system would make Sirius' mood change. His House had just won the Quidditch Cup for his last year, against Slytherin out of all Houses, and even so nothing could pull him out of this morbid state.
Maybe he should just call it a night and head off to his dorm. Maybe he should just ignore everyone around him and pretend that his eyes were not focusing on Slytherin's Chaser and Captain as she snogged whoever that was. Of course he didn't care about that. Sirius Black and Marlene McKinnon were never a thing. What they had was only a slip up; a mistake that should never have happened and should never kept going for the followings months after the first time.
But, instead of doing any of those things, Sirius opted to lurk around the far corner of the Gryffindor Common Room, his eyes never leaving the sight of the blonde head that dwelt in his thoughts for the past week, ever since the day he decided to neglect everything that was related to her.
Sirius Black was the kind of person who didn't do romance. He pushed down every type of feeling he could ever have for someone and put as much distance between them as possible and never thought about it twice. And it worked perfectly fine, until he met a certain pure blood who would drive him crazy.
At first, Marlene McKinnon was just someone who shared a friendship with him, someone he could bicker with and annoy. Besides the throwing offenses festival between them, they were nothing more than acquaintances destined to drive each other out of their minds.
For the first time in forever, Sirius could say that he had found his match. He could say that for as bad as he was, she was worse and it only drove him into her, each time needing higher doses of whatever she had, until he felt like he was going to explode. It was a kind of feeling he had never felt before, something he could never dream of and he didn't know what to do or how to act anymore. He had to get away from it all. Pushing it down hadn't worked. The easy escape failed.
From the other side of the room, Marlene was aware of the pair of eyes following her every move. She did everything she could to keep herself in his line of sight, her already drunk mind soaking in the thought of Sirius being affected by anything she did, but she wanted more. She wanted to see him going up the walls, marching up to her and beg on his knees for her to stop the teasing and she was up to that challenge.
The song had changed and some upbeat music started, the bass booming through the air, intoxicating everyone and working faster on drunken minds, for the looks of it, as Marlene made her way to the dance floor, her date, or whatever, following like a little puppy, dazzled.
From his shadows, Sirius did everything he could to stay in place. First of all, he wanted to know how she had gotten into their party. Her team lost and yet there she was. He knew James should be the responsible and he wanted nothing more than to just punch him in the face for allowing such a thing, but he couldn't. Because James Potter had no idea Sirius Black had been involved with one of his best friends. And no one would ever know. On a second place, the boy knew that if he moved, even if a few centimetres, nothing would stop him from going to the jerk that had his arms around McKinnon and kicking his ass.
With one hand balling into a fist, Sirius downed the content of his cup in one swig, the Firewhiskey burning its way through his throat into his stomach, warming him up, his face getting redder, whether it being the drink or his fast heartbeat, he couldn't be sure.
For the first few minutes, he could hold back any kind of violence he held within him, but as soon as his grey orbs caught McKinnon's blue ones, he was in a trance. He couldn't look at anything else, not that he was before, and his eyes followed her expression, seeing the damned smirk she had on her lips as she saw his breath get shallower. And, s if it wasn't enough, Sirius had to watch as she kissed the guy's neck, her eyes wide open and stuck on him.
In a sudden move, Black pushed himself off the wall, his feet faltering a bit with each step, and made her way to the centre of the dance floor, his arms wide open.
"Having fun, McKinnon?" he said in a cold voice, his tone dripping with rage.
Slowly, Marlene raised her head from her date's shoulder and blinked a couple of times, pretending she didn't know what was going on and just shaking her head, ignoring Sirius completely.
It happened so fast Sirius didn't even know what he was doing. A moment before he was staring at the girl and the next one he had her date pressed against him, the guy's arm bent in a painful angle before he finally let go and pushed him down, walking up to Marlene and pushing her against the nearer wall.
"What the fuck was that, Black?" she bellowed, her hands hitting his chest in an attempt of getting away from him.
"That," he said, his head leaning down to hers. "Was me being polite to that thing you brought."
His heart was beating wildly fast and she could feel it against her hands pressed on his chest. His face was contorted in a scowl and his breath fanned her face. Sirius was on the verge of a breaking down and all Marlene could think of was how much seeing him like that turned her on.
Pressing her thighs together, trying to relieve some of the tension created, she smirked and shook her head.
"Are you jealous?" she asked, her fingers tracing the shape of his shoulders, her nails slightly scratching his neck.
Sirius closed his eyes, relishing in the feeling this minimal touch provided. Something deep inside of him was building up, burning its way to his core and shaking him in a way it never did. Before he could do anything, however, her feather-like touch disappeared and his eyes snapped open just in time to see her leaning up to him, her lips blowing on his ear.
"I'm not yours," she whispered with a smirk, sucking his earlobe lightly before pushing him off of her and walking out of the Common Room, her waist swaying as her eyes never left him. "You should take care of this boner, Black." She called out no even looking back as some sniggers were heard.
