Joke from spanish (kinda explicit...)...?

so four nuns from the same convent die in a accident and go to heaven. They are met by St. Peter, the gaurdian of the pearly gates. St. Peter asks the first nun (dont ask me why), "my child, have you ever touched a man's peni$?". The nun looks down shamefully, and answers "yes, i have, with my finger". St. Peter directs her to a fountain of holy water and tells her to wash her finger. St. Peter then asks the second nun, "my child, have you ever touched a man's peni$?". The second nun blushes, and shamefully answers, "yes, i have, with my hand". St. Peter tells her to wash her hand in the fountain of holy water. St. Peter then directs himself to the third nun, and is about to the question, when the fourth nun jumps in and says, "can i go ahead and gargle my mouth before she washes her a$$?".