“I'm going to go ask if we can play through”, says the first man. He gets about halfway there, then quickly turns around and comes back. “What happened?” asks his partner. “One of those women is my wife”, says the man, “and the other is my girlfriend”. “You go ask them”.
The second man walks toward the woman. Halfway there, he also turns around and comes back. “What happened?” asks the first.
The guy shrugs, “small world”.
Good one! 
