There shouldn't be any dangerous parts. The whole thing should just be simple, natural, and easy. There shouldn't be any danger or peril to it! He has half a mind to just outright say so, but it occurs to him in that moment, just before he is about to say something about it, that there is some degree of hazard to it. Not to kissing as a whole, mind, but to kissing him.

He has a mouth full of sharp teeth that he has already introduced to Crowley's flesh once before—although when they were a little less developed, but still quite sharp. Yet, Crowley is looking perplexed and thoughtful over whether or not Aziraphale wants to try again.

Aziraphale lets out a soft noise.

"I—Well, yes," he says, his voice firm. That part isn't anything he is unsure about. Of course he wanted to kiss Crowley again. He would even do so right now in this very moment. "Truly, I believe the greater question is: are you sure you wish to kiss me?"

"I could bite you again. The teeth have gotten worse because everything has been getting worse."