For a moment, she falters as well, unsure if maybe he didn't like it when she pulled his hair a little too hard, but then she comforts herself with the knowledge that he would probably tell her if he didn't, and besides, the way he applies himself to fucking her off the edge of the desk is a fairly clear indicator that he's enjoying himself.

Swallowing to smother another moan, she strokes her fingers through his hair where she'd grabbed before. "Just like that, darling," she murmurs, arching into him.