Once Draco heard the door unlock, spite completely took over. He knew that it had to be Harry, and he knew that he wanted to rub his thing with Chad in his face as much as he could. So, instead of just staying slightly too domestic with Chad, he turned around, wrapping his arms around Chad's neck, and tiptoed up to kiss him. The lacrosse player had no issue with returning his kiss, and only pulled Draco in closer, as he smiled into the kiss. It was a little childish, but he felt that it was the best way to piss of Harry, so he was willing to be childish about it.