Perhaps one of the first instances of pegging in the mainstream cinema, here is a scene depicting a man getting pegged. It involves what seems to be a psycho nurse, a man who seems to be fresh out of jail and a lot of metaphoric imagery.
It’s pretty easy to see why this is movie from the 1970’s was rated one of the worst movies of all times. Have a laugh.
http://www.youtube.com/watch?v=BMz_XyQtzWM