A little boy and a little girl were having a bragging contest.

The little boy was getting thrashed every time:

B: My dad's got a Jaguar!

G: My dad owns the Jaguar factory!

You know the score. In the end he gets fed up and drops his trousers and says:

"Bet you haven't got one of these!"

The little girl smiles, drops her knickers and says:

"My Mummy says when you've got one of these, you can have one of those any time you like!"