Jill, I'd also try to get one of the girls you'll be out with to help do the make up. If nothing else that will throw them off a little bit more. Remember that you'll have shaved legs and will walk in high heels fairly well, not to mention how much you'll 'have spent' on your clothes for a one-time costume. As for boobies, just roll up a couple of socks and stuff 'em in. That works fine and you won't worry about popping them if someone gropes (and somebody will!).

You should also expect to get your bra strap snapped in a bit of revenge. My wife still does that and it sucks. Now I understand what the fuss was!