Hey may hate her work, but he's conscious of it, and she gives an appreciative moan- or maybe that's because she just happens to like the feeling.

Kyle had asked her that. And when it was good, well, it was good.

"That can be arranged," she tells him- he eats for free, now. Obviously, it would be wrong to charge her boyfriend to drink her blood. "Maybe after the ride." It can be sexual, or he could drink her blood. Either way, the invitation is there.