[It is, in fact, Magnus's trademark mildly flirtatious type of comment, the sort that doesn't mean anything, the sort that his friends either take in stride or don't even notice anymore. Learning even a sliver of Reid's previous experiences will ensure it's the sort of thing he doesn't hear again. There's flirtatious, and there's inappropriate.]

Oh, you didn't, did you! [Cue the rolling of his eyes at himself.] I'm sorry, it's been so long since I've gotten to really discuss magic. I'm Magnus, Magnus Bane. High Warlock of Brooklyn, although that doesn't mean a thing here, and honestly it's a relief not needing to worry so much about Brooklyn's warlocks.

[His little flicking gesture dismissing his words says that's a long story he can tell later.] Come by whenever you'd like, I'll be here.