In the habit.

This joke comes via Pat's blog.

Four nuns are trying to get into heaven. They approach St. Peter and he asks the first nun, "Have you ever touched a penis?" She says, "Yes, I did touch one with my finger one time." He says, "That's okay, just rinse your finger in the holy water and you can come in."
St. Peter asks the second nun, "Did you ever touch a penis?" The nun says, "Yes, I touched it with my hand." He says, "That's okay. Just rinse your hand in the holy water and you can come in."
Suddenly, the fourth nun says, "If you think I'm going to gargle with that after she sticks her ass in it, you're crazy!"