Don't Need One of Those

A little boy brags to a little girl, "I have a big fire engine."

The girl responds, "So what? I have a fire engine, too."

He says, "I have a toy tank."

She replies, "So what? I have a tank, too."

The young boy drops his pants and says, "I have a penis!"

The little girl looks down her pants and runs home crying.

The next day, the little girl sees the little boy, and he tells her, "You still don't have a penis, and I do!"

She replies, "My mom told me not to worry about it. She said that as long as I have what I have, I can get as many of those as I want."