Regulus gripped my arms painfully tight; pressing me up against the wall with such a brutal force that I just knew the hard stone wall would leave bruises on my back tomorrow. He smashed his mouth onto mine, teeth cutting into my lip and cracking my head on the wall. I moaned in pain, but Regulus did not let up. He slid his hand up my arm, and into my long dark hair, yanking it down so he could assault my neck with his eager lips and teeth. Love bites and teeth marks were imprinted on my neck, marking me.

"You're mine." Regulus growled, before he threw himself off of me and stormed off down the corridor, leaving me dazed in the shadows.

Regulus and I had an agreement. It started in detention, believe it or not. We had been caught fighting in the hallways, started by one errant jinx that neither of us would claim. We were sent to the trophy room to polish the many cups and plaques that littered the room.

"How does it feel?" he asked, breaking the silence.

"How does what feel?" I asked stiffly.

"Being my brother's whore when you know he'll never love you." Regulus was hovering behind me, smirking. I spun around and grabbed him by the collar. He looked at me with surprise, as if the small aristocratic boy had never dreamed of fighting without magic.

"Shut your fucking trap." I growled, slamming him against the bare wall. "You have no idea what goes on between us." I let him go, and he slid down the wall to sit on the cold stone floor.

"Enlighten me then." he replied with pure interest. I looked down at him curiously. Regulus was not his brother, by any means. Where Sirius was muscular and defined, Regulus was slim and angular. Sirius was confident and cocky; while Regulus was insecure and contemplative.

"Why?" I hissed. "Wonder what it feels like to be your brother? The eldest one? The favourite?" Regulus jumped up and grabbed my shoulders. I was momentarily stunned when he pressed his face close to mine.

"Stop talking." he ordered me with barely controlled anger. "You think you're so much better than I am, you pathetic slut? I see the way you follow him around like a lost kitten. The way you moon over him at dinner, and how you don't come to meals when he gets a new bird. I see you." he pushed me away from him with a scowl. I stumbled back, astonished.

"Fuck you Black." I looked at the ground and scowled.

"Indeed." Regulus agreed. We both stood there, staring anywhere but at each other.

"I guess we've both been fucked over by Sirius." I whispered. Regulus looked up at me, the same stubborn glint that Sirius would get sparkling dangerously in his eyes.

"No. That blood traitor means nothing to me. He has nothing to do with me anymore." Regulus spat. He turned away as if he was afraid to say anything else, to open up. "You better keep your mouth shut about this!" he demanded as he turned back to me.

"Oh really?" I snapped back at him. "You're going to make me?" I asked stubbornly. He had no wand, so he grabbed me by shoulders, digging his fingers in painfully and shoved me up against the display case.

"If you say anything-!" he trailed off threateningly.

"Fine!" I relented. I didn't want to be choked to death in detention for this. "If you ever need to talk about it though, I'm here." I added, smirking slightly. I knew the very thought of a Gryffindor helping a Slytherin was abominable. A strange look filled his eyes, a mix of rage and desperation.

"God dammit woman!" he growled and slammed his lips onto mine. Our lips crushed each other's furiously, a hot mix of lips and teeth and tongue, before wrenching apart from one another. I was pressed up against the trophy case, heart beating wildly. He stood a foot away, breathing heavily, looking distinctly not-Sirius. But for a second while we were kissing, I could almost pretend he was. And for the few seconds that I kissed back, he could pretend I wanted him.