Painting the Bucket
After sex, you wait until they're snoring, and then you dump a pile of poop on their head.
He waited until she was asleep and poured a whole bucket of poop on her. She woke up screaming and covered in filth.
She waited until he was snoring and threw a pile of poop right on his face. He thought it was a prank at first.
He waited until she was passed out and dropped a mountain of poop on her. She thought it was a dream until she woke up.