Glad to hear it...
I've had a couple of similar episodes. The girl just didn't get into it enough for me. She wanted to jump straight into doing it, but she was basically playing dead fish.
Usually these types of chicks are just trying to get prego in my experience. In your case, maybe she was just really drunk. If she asks you to not use a condom and says she doesn't like them before your next encounter, I'd be extremely leary. She might be daddy shopping.
Aside from that, I've found the best way to prevent "problems" is to not masterbate, doing some kind of cardio a few times a week, and eat whole food items. When this happened to me I was eating a lot of balance bars, high meat intake, etc. I can't prove that had anything to do with it, but after I quit eating that way I went back to being a sex crazed animal within a week.