1. I can rub one out while he is doing me
2. I can reach under the play with his balls while he is doing me
3. When shaved his balls hit my clit just right...
4. If he is ulgy or has bad breath I don't have to be face to face
5. My men either cum in me or clean my back off when they are done
I might have this wrong, but my impression is that chicks who can have vaginal orgasms (vs clitoral) have them in just about any position (or they're good at faking it - one or the other)