Regulus' stare lasted a little too long to be simple courtesy, but instead his eyes moved up and down Jake's body one too many times. Merlin, the man looked amazing even in those awful Muggle clothes. In fact, it was the only reason that Regulus wanted to rip them off of him. There couldn't be any other reason of course.
"How very convenient, then, because I get really upset when my plans are spoilt, which would have if you were thinking of someone else," he answered with a smile.
He stepped in, and closed the door casually while standing all too close to Jake. "I promise that I want bat my eyelash and I won't be drunk. However grinding and snogging might happen."
He decided that he likes to see Jake grin, which was strange, because he never cared about anyone's happiness before. "You can sit down and there is food as well. I can Apparate us there."