Four nuns are in line to go into heaven. God asks the first nun if she has ever sinned. She says "Well, I've seen a penis." So God puts holy water on her eyes and lets her enter. He asks the second nun the same thing and she says "I've held a penis" so he puts holy water on her hands and lets her enter. Then the fourth nun skips the third nun in line and God asks why she did that. The 4th nun replies, "Well, I need to gargle it before she sits in it"