Aziraphael seems to take that as a 'yes.' At any rate, he doesn't stop what he's doing.

"Mm," he says, intelligently, smiling even more widely. "Not required, I think."

His hand pulls out from under Crowley just a little in order to prop himself up on hands and knees. His left hand slips under the larger feathers in order to tug - gently - on the smaller ones beneath.