RPF,
here is a trick that will serve you well after a night of drinking when it's hookup time.
You let the girl give you a BJ first, always. Once you finish, you act like you pass out from all the drinking. She'll be disappointed, but you won't have to put your face near the place where all the stank hangs out. Going down on a one-night stand is a major no-no. get yours then go to sleep. Always hide your wallet under the pillow before pulling this trick.