A drunk is sitting in a bar. There is a very buxom blonde lady a few seats down -- I'd estimate her breasts are 44DD'S.
A fellow at the end of the bar calls for a beer. The bartender fills the mug and slides it down the bar. It hits the lady's breasts and spills all over them. The bartender goes over, retrieves the mug and licks the beer off of her breasts.
This happens a couple more times. The next time, the drunk jumps up and starts to lick her breasts. She decks him!
He's laying on the floor moaning and groaning. "Why do you let the bartender do it?"