Sister Mathematical arrives at the convent and is worried about what has happened to Sister Logical.
Then Sister Logical arrives.
SM: Sister Logical! Thank God you are here! Tell me what happened!
SL: The only logical thing happened. The man couldn't follow us both, so he followed me
SM: Yes, yes! But what happened then?
SL: The only logical thing happened. I started to run as fast as I could and he started to run as fast as he could.
SM: And?
SL : The only logical thing happened. He reached me.
SM : Oh, dear! What did you do?
SL : The only logical thing to do. I lifted my dress up.
SM : Oh, Sister! What did the man do?
SL: The only logical thing to do. He pulled down his pants.
SM: Oh, no! What happened then?
SL : Isn't it logical, Sister? A nun with her dress up can run faster than a man with his pants down.
And for those of you who thought it would be dirty,
Say two Hail Marys!