I would say that I cum about between 5-8 times per sex session.

Do any ladies sometimes find it easier to cum while masturbating ? I find that this is how it is with me.

Sometimes during sex, he cums and I'm left hanging, but
when this happens he's usually very accomodating about helping
push me over the edge, or I'll just do it for myself. Either way
I don't really mind as long as I end up satisfied as well.