Crowley claims that adoring expression and the following laughter as a prize, storing them inside himself somewhere to be gloated about later.

It'll have to be later, because right now his breath is caught. It's a good thing he doesn't have to try and hide his devotion anymore. He'd never manage it. "Yeah," he says, shivering as Aziraphale's fingers just barely brush over his feathers. "Yeah, 'course. Dig in."