Although I wouldn't trade my sexual abilities for anything (maybe the lives of a busload of orphans? mayyybe? hm. nah.), in one sense I do kind of envy most men and some women--the ones who can have an orgasm and be done. It must be nice to have even five minutes post-orgasmically when you really can't go again and don't want to.
I don't really finish having sex. I just get sore, tired, out of time, or my partner gets done. (My hips used to be the first to tap out, but I've been getting more exercise lately so usually I can last until my vagina itself waves a tiny white flag.) I can't be satisfied.
I masturbated three times today. The only reasons it wasn't four were lingering soreness and the need to do other things with my day.
I'm honestly not sure if this is a whine or a brag, here. On the one hand, I'm awfully jealous of the ability to completely relax after an orgasm and truly be sated with sex for a few minutes of your life. It can be awkward when I'm supposed to be basking in afterglow and he's all relaxed and warmfuzzy and I'm lying there wishing he'd make me come just one more time. Just one more. Or two, you know, if you feel like it.
On the other hand, now and then I get into situations like a couple nights ago, completely sore and completely tapped out and yet... not just taking a man's fingers but fucking back on them and coming on them over and over and over. "You really can't help it, can you?" he asked, and the answer is I can't. It's frustrating and a little humiliating and it leads me into pain and it's awesome.