#this sparkly-ass bloodsucking disco ball of vanity

Some or all of that may in fact be true. Our fandom’s true OTP is Lestat/Mirrors.
As for the #vampire physiology aspect, I don’t think Lestat is THAT shiny. Without spoiling anything for you, I’ll tell you that his skin, at least in mid-canon, is not as marble-white as some other vampire flesh can be. Yeah, if he knows he’s going to be photographed (like for modeling!), he’d probly use a light spray tan to reduce the glare.
Vanity is definitely his fave sin. Gluttony would probably be a close second >;}