Sirius was tempted to say "anytime," but he didn't think he could pull that off with the same aplomb that he had shown with Faelan. Besides, getting into a game of chicken with Harry, of all people, felt far too dangerous. Instead, he gestured at Gaius. Carefully, he waited until Harry was drinking his beer.
"I think this one's busy, but he has a couple of half-brothers. If all you want is tall and dark, maybe you could negotiate with Remus."