It's flirting at its finest, and Aziraphale is far from immune, blushing and dropping his gaze sweetly to their joined hands. "I think it's even better with you here with me," he replies, his voice gone husky. The reality of the moment is catching up to him, but he's leaning into it instead of shying away. He wants this, and whatever comes next.

Once Crowley's sitting down, he tugs him a shade closer and kisses him slowly. Purposefully, as he has a better sense now of what he can do with his mouth to draw out all those sounds from Crowley that he likes best. He keeps his hand in Crowley's while the other moves to the small of his back, then underneath his black jacket. He's not so bold as to ruck up his shirt, but he does confidently run his hand up and down Crowley's spine between those layers of fabric.

"I believe you were doing something interesting with your tongue earlier," he murmurs, when the kiss ends. "Shall I return the favor?"