Girl or Boy?

Allyson and I were just sitting playing with her modeling sand (cool stuff!) while the cat was playing and Dave was putting things away.  The conversation went like this...

A- "Is our cat a boy or a girl?"
M- "He is a he. Does that make him a girl or boy."
A- "He is a boy? How do you know he is a boy?"
M- "His body is like a boy and not a girl.  Have you ever noticed that Daddy's body looks different from yours?"
A- "I guess.  He has longer hairs on his legs.... Like the cat!  They are boys because they have longer hair!"

There you have it.