Joke, courtesy of Mr F!

After three years of marriage, a wife was still questioning her husband about his lurid past. "C'mon, tell me," she asked for the thousandth time, "How many women have you slept with?" "Baby," he protested, "if I told you, you'd throw a fit." The wife promised she wouldn't get angry, and convinced her hubby to tell her.

"Okay," he said, then started to count on his fingers. "One, two, three, four, five, six, seven - then there's you - nine, ten, eleven, twelve, thirteen . . . "