Draco literally gulped when the knock came, but he couldn't leave her out there to be caught, so he moved to pull it open and he smiled a bit more easily than he felt - then somehow he felt better. Seeing her, and he could tell she was eaten up by nerves too, just with one look, made it easier to feel like the confident one, somehow.
He stepped back, let her in. He was wearing a pair of black lounge pants and a black teeshirt - he didn't need to say that he'd changed three times before he'd decided on it. "Evening," he told her, and the smile was replaced with an amused sort of smirk. "Not caught, then?"