Little Johnnie was learning new words.

"Mum, what's p*u**yy?"

Mother pointed at the cat and said, "That's a p*u**yy."

"Mum, what's a bitch?"

Mother pointed to their female dog and said, "That's a bitch."

Johnnie wanted to confirm this information with his father.

"Daddy!" he said excitedly, "What's a p*u**yy?"

Father pulled out the centrefold of the Playboy magazine and drew a circle around the appropriate part.

"Son", he said, "that's a p*u**yy."

"Well, Dad, what's a bitch?"

"Everything outside the circle", replied his father.