Originally Posted by Donny

Belinda's Professor was giving a lecture on "Involuntary Muscular Contractions" to the class of first year medical students. Realizing that this was not the most riveting subject, the Professor decided to lighten the mood slightly.

He pointed to Belinda who was in the front row and said, "Do you know what your ass hole is doing while you're having an orgasm?"

She replied, "Probably deer hunting with his buddies."