That's My Wife and My Mistress

Two friends are playing golf, and they catch up to a group of two women playing ahead. The ladies are playing slow, and the guys get tired of waiting.

So oOne of the guys starts walking toward the ladies to ask if they can play through. About halfway there he stops, turns around and returns to his friend.

"I can't go up there and talk to them," he says, "that's my wife and my mistress!"

So his friend starts walking up to the women. But about halfway there he stops, and turns around.

When he gets back to his friend, he just says, "Small world."