Four nuns were standing outside the Golden Gates waiting for Saint Peter to allow them to pass through and enter heaven. When he arrived he said to the nuns, "all of you have lived lives of righteousness, but none of you are without sin. If you come forward and confess your sins, you may pass through and enter heaven".
The first nun approached Saint Peter and said "Saint Peter, I have sinned for I have gazed upon a naked penis", to which Saint Peter replied, "then you must wash your eyes in the basin of holy water". She then washed her eyes in the holy water and was allowed to pass through.
The second nun approached and said, "Saint Peter, I have also sinned for I have grabbed a man's penis", to which Saint Peter replied, "then wash your hand in the same basin of holy water". The nun then washed her hand in the same holy water as before and was allowed to pass through.
The third nun followed and said, "I had allowed a man to have rough anal sex with me" and was then instructed to wash her anus in the same holy water, which she did and was allowed to pass through.
The final nun then looked at Saint Peter and said "If you think I'm washing my mouth out with that holy water, you are very much mistaken"