"Game doesn't get you laid, Logistics gets you laid"- Johnny Wolf
You're at a party, which I'm assuming isn't at your place; I'm going to assume you're at a club, personally, I'm not a big fan of bathroom pulls. Anyway, you need to figure out how to get her to a seduction location, say your place or her place. You need some place private, otherwise it's not going to go anywhere.
Go back to your situation, I guarantee you if you and here were back at her place or your place, escalating would have been much easier.
In the E (extraction) part of the ABC's model is the next step you should have taken, you guys had already made out and you should have gotten her out of there. You need some sort of extraction excuse, say "a party back at your place", a reason to get her back to your pad.
-Kevin
