Once upon a time there was a new nun assigned to the convent.

One day, she tells the Priest that she has a terrible secret.

The Priest tells her that her secret is safe in the sanctity of the
confessional.

So, she says ‘Forgive me, Father, but I never wear panties under my
habit’.

The Priest chuckles and says “That’s not so serious, Sister Katherine.
JustSay five ‘Hail Marys’, five ‘Our Fathers’, and do five cartwheels on
your way to the alter”.