[He chuckles at the hedgehog bit--Warlock may be the Antichrist, but Aziraphale knows he doesn't have much aptitude for ancient signs and symbols. At least not yet. And when Crowley points it out he does glance down at the mark on his thigh.]

It does, a little. Or those could be demonic horns instead of floppy ears. Hard to tell.

[For a moment he's quiet, considering.]

Didn't really think I'd ever do this again, you know. The whole child-rearing bit, I mean.