[Harmony♥]

Leg twitching is a good thing. Maybe your girlfriend doesn't know this!

However, something the above poster didn't mention, a lot of woman CAN'T orgasm through intercourse or manual stimulation alone. And some just can't orgasm at all. Not to burst your bubble, but it's true. Only a certain percentage (and I'm not sure what the percentage is currently) can orgasm through intercourse or manual stimulation alone. Some just need more of a push to get to that point. It might happen for her, it might not. Rest assured that it's neither your fault or hers if it doesn't happen. It's just one of the crappy parts of being a female.