If she rubs it against you while you keep your hands off her it's all good. If you involve your hands in touching of any kind you may end up with major bruises/possible broken bones from being bounced by security. It happened to me when I was best man for my brother. Ouch!...Luckily just bruises on my shoulder and hip. Was so drunk I don't remember "leaving" the club. Someone bought me a lapdance apparently so don't get one for your buddy if he's too shitfaced to behave.