Yes, she knows exactly what to do, but it's hard to have anything resembling technique when you really just one to get off. It feels like even the slightest movement should be enough, and yet it isn't. Still, she half-closes her eyes, licking along his shaft like it's some kind of sweet treat, teasing just a little before taking him inside her mouth, grazing lightly with teeth just the way he enjoys. Claudia wants to be pleasing, wants to do right, to do anything she has to for Lucifer.