Brian was used to being rejected, it came with flirting with everything that moved, so he shrugged his shoulders and moved on. At this point he was just enjoying the social nature of the party, he loved being around other people, especially in a setting like this. It helped that he was the one who was throwing the party and everyone seemed more interested in him than normal.
His head snapped up when he heard a voice calling his name, it was Mavis, one girl he was not interested in at all. He felt shallow when he thought about it, because she was a very nice girl, but he just could not get over her looks. Then, she fell, and everyone erupted into laughter. Brian felt his face grow hot as he had seen the entire thing go down, and while he was not attracted to the girl, he still liked her. She had never been anything but nice to Brian and he would not stand by and watch her be treated badly, she was a member of his house, and as such she was promised Brian's protection. Even if she didn't want it.
It was most definitely the booze that was hitting him, but he did not care, he left the group without saying anything and marched over to the Slytherin who was getting praise for tripping her. He did not see Brian coming, which gave Brian the upper hand, and he reared his fist back. His lessons with Wally were going to pay off much sooner than he had expected. He swung his fist forward with authority and smacked the boy directly in the jaw. He did not see it coming and he dropped to the floor like a fly. Brian backed up and he looked at the group of people who were all looking from the boy back at Brian.
"Get him the hell out of here and don't even think about coming back." The commotion must have caused a scene because a bunch of Gryffindor's piled in behind him, having his back, the Slytherin's were definitely outnumbered. His face was boiling with rage, and he hoped they would retaliate, he was itching for a fight now, even though his right hand was throbbing from hitting him so hard. The Slytherin's quickly gathered up their friend and they made there way out. Brian stood still, looking around, the party had gotten much quieter. "FIFTY POINTS TO GRYFFINDOR!!!" Brian shouted loudly, thrusting his fist into the air, met by a loud crowd reaction, mostly from Gryffindor.
Satisfied, he turned on his heels, and he walked back to the group that he had just come from. "You alright, Mavis?" Brian said once he came back. "Don't let those bastards walk all over you, you don't deserve that." He smiled and gave her a pat on the back and he grabbed a bottle of whiskey and cracked it open, he was already drunk, but why not get a little drunker. "But, you do deserve this, no drink up. All of you." He smirked at Darcy, Padril, Molly, and Mavis before tipping the bottle up and then handing it to Mavis.