To return to topic, my housemate just told me a line she had used on her on Friday night.
Guy: *smiles*, "Hi"
Girl: "Hi?" (A little drunk and trying to work out if she knew him)
Guy: "I bet you get quite a lot of guys trying to get in your knickers on a night out..."
Girl: "Umm..." *prepares to depart*
Guy: "Personally I think thats rubbish, I'd much rather get in your pu$$y and leave everyone else fumbling around your knickers."
Surprisingly enough, it didn't work!!