A man is sitting in a bar and notices two lovely women across the way. He calls the bartender over and says, "I'd like to buy those two beautiful ladies a drink."
The bartender replies, "It won't do you any good."
The man, with a confused look on his face says, "I don't care what you think, I want to buy those ladies a drink."
The bartender delivers drinks to the ladies and the women acknowledge their drinks with a nod of their heads. Twenty minutes later, the man approaches the ladies and says, "I'd like to buy you two another drink."
The women both reply, "It won't do you any good."
The man says, "I don't understand. What do you mean it won't do me any good?"
The first lady says, "We're lesbians."
The man replies, "Lesbians? What are lesbians?"
The second woman replies, "Lesbians... We like to lick pussies."
The man says, "Bartender, three beers for us lesbians."