Crowley was no more well versed at kissing. The only things there were to kiss, other than the angel, were people. And people were, well...

He'd prefer to avoid that nastiness. They were fine, he supposed, especially the young ones who were full of chaos and honesty. But he wouldn't kiss even them. Well, maybe that one boy. On the head. One time. Because he behaved excellently with that dog...

Oh, yes. He was kissing Aziraphale. Best not let his mind wander.