The theatrics were endearing, but the fainting spell-- that earned a chuckle from Alastor, even as he carefully shifted his hold just to be sure that Lucifer didn't tumble out of his grasp.

...His heart was hammering. Yet despite that, there was a strange calm he felt, having Lucifer rest his head on him. A sort of closeness he rarely shared, much less initiated, and after so long of not wanting anyone close it was... a pleasant reprieve.

"Overestimated how much blood I could take, I see," Alastor chuckled, endlessly amused with this ridiculous man. He really was just as much of a charming belle as Charlie was. "We'll make sure the next nibble is when you're already settled and seated for the evening to spare you the trouble."