I’m a cute, mostly straight, twentysomething, single, and (safely) sexually active woman. This happens to me pretty often: I hook up with a guy, we start fooling around, and we’re both really into it. I reach down, and he’s full sail. Things progress — clothes come off, etc. — and, as is generally the polite order of things, the lady comes first. (This isn’t the problem.) I’m not aggressive, but I’m not shy. I tell a partner what I like and how to do it. They are always happy to oblige.