He makes it clear when he likes something, which is both really helpful and really hot. The little sounds he makes, the half-bitten-off words, and especially his hand in her hair, making her scalp tingle where his fingers drag against it--all of it is encouraging and arousing.

The encouraging parts are the most important, and it's easy enough to take what he gives her and turn it into more for him. She lavishes attention on the head between bouts of taking him as deep into her mouth as she can manage without gagging. It takes a little while, but she settles into a rhythm, her hand and head moving in tandem. A little faster, a little steadier.

(And her teeth don't get in the way, thank God.)

Her other hand's a bit more restless, moving from his hip down to cup his sack in her palm--but she never really knows what to do with them except sort of be nearby. Which is basically what his balls are doing for his penis anyway, so maybe that's enough.

Eventually, though, listening to him react is as distracting as it is helpful. Beth hums in a sort of agreement when he seems especially pleased, the best she can come up with when her lips are wrapped around the head, and reaches down between her own legs. Her clit's aching for some kind of attention, and she's not too bad at doing two different things with her hands at once. (Finally, a use for piano lessons after the world ends.) Her eyes lift to his face, gauging how he's doing.