Sex was meant to be fun; it was meant to be enjoyable and fun and occasionally it was just a right up laugh. Rushing things wasn't really something that should be added with sex (unless the occasion called for that, and this wasn't one of them). Clint liked the build up, liked taking his time, liked making sure his partner was just as into it as him.
Otherwise what was the point?
As Kate's fingers trailed to his underwear, Clint slid both his hands to her hips, catching on the band of her underwear to push them down her legs. Stroking along the skin as he went, while leading Kate back to the bed.