One day a hippie goes down the street to take a bus. At the bus stop, he sees an incredibly georgeous woman who's unfortunately a nun.
When the bus arrives, he gets on after the nun.
"Hey, let's have sex." he tells the nun.
"I only listen to the word of God." the nun tells him and walks to the back of the bus.
The hippie shakes his head and laments to the bus driver.
"Man, what I'd give for some of that."
The bus driver responds with a smile.
"Tell ya what, sonny, this skirt only listens to the word of God right? At 12 midnight, go to St. Paul's graveyard and she'll be there, carrying a candle. You go there, carrying a similar candle, wear a mask and a cloak and tell her that "God has sent me to hump your behind.""
The hippie nods eagerly.
"OK, old man, I'll try it."
So at 12 midnight, the hippie goes to the graveyard wearing a hooded cloak and a mask, complete with a candle.
Sure enough, the nun is there and she's sitting down bent over in front of a tombstone. The hippie sneaks over and says in a deep voice: "God has sent me to take your ass."
The nun nods and bows over even further and lifts the hem of her robe for the hippie.
The hippie grins and rams it in.
After half an hour, the hippie takes his prick out.
"Aw, man, that was great." He removes his hood. "Hahahahaha, I'm the hippie!"
The nun removes her hood.
"Hahahahaha! I'm the bus driver!"