Four Nuns

These four nuns were met with a terrible fate and all passed away. When they arrive at the pearly gates, they are greeted by St. Peter. He says to them.
"I'm sure you've all lived holy lives, but before I let you through I want you each to tell me the worst sin you've ever committed."
The first nun shyly says "I once looked at a man's penis..."
St. Peter says "Alright, God forgives you. Come over to this pool of holy water and wash your eyes out."
She does and then walks through.
The second nun walks up
St. Peter asks "What is the worst sin you've ever committed?"
The second nun shyly says "I once touched a mans penis..."
St. Peter replies "Alright, God forgives you. Come over to this pool of holy water and wash your hands."
She does and walks through.
Now, the fourth nun starts shouting "Me next! Me next!"
St. Peter says "Wait your turn."
Insistingly, the fourth nun says "NoNoNo, Me Next! Me Next!"
St. Peter replies "Now why is it that you have to go next?"

The fourth nun says "Because, I want to rinse my mouth out before Sister Ann sticks her ass in that thing!"