Crowley whimpers. There's no other word for the sound he makes, embarassing as it is. It's ridiculous to find this feeling so intense and intimate, especially after having had Aziraphale's mouth on his cock only a few minutes ago. But it is, unquestionably. No wonder Aziraphale reacted as he did downstairs when Crowley did this, if it felt the same...

"...yeah," he manages, after a minute of almost gasping from the spine-tingling pleasure of it. It's so light a thing, but almost agonizingly effective... "Yeah. That'd--that'd be good--fuck, angel, that feels--"

He bends his head down again, captures Aziraphale's mouth in a series of hungry, needy kisses, trying not to whimper again.