One day, a hippie and a nun get on a bus.
The hippie whispers into the nun's ear and says
"you wanna have sex?" and the nun says,
"no way you sicko!", after that, the hippie gets off the bus and tells the bus driver to tell the nuns to go to the graveyard at 9:00pm that night. At 9:00pm the nun arrives at the graveyard and the hippie is there dressed as god. The hippie then commands the nun to have sex with him and the nun replies,
"Ok, but can you do it up the back?", the hippie agrees and they do it.
after they're done, the hippie pulls of his mask and yells,
"HA! I am the hippie from the bus" then the nun pulls of HIS mask and says "HA! I am the bus driver!"