Orgasm
One evening after a few drinks at the local pub, two buddies started discussing orgasms. John said, "You know, there are four types of orgasms."
Jim replied, "Really? What are they?"
"Well, there's the POSITIVE, NEGATIVE, RELIGIOUS and FAKE. The positive goes 'Oh yes! Ooh yes!' The negative goes 'Oh no! Oh no!' The religious goes 'Oh God! Oh God!' and the fake one goes 'Oh Ernie! Oh Ernie!'"