Two babies lying close to each other in small incubaters.

One baby turns to the other and asks, "Hey you, do you know if I am a boy or a girl?"

The other baby replies, "I'm not too sure, but I could give it a go."

"OK", said the first baby, "What next?"

"You'll have to pull down your blanket so that I can look." Said the second baby.

The first baby pulls down the blanket.

With a whoop of success the second baby says, "You're a GIRL".

"How do you know? How do you know?", squealed the first baby.

"Easy, I just had to look and there it was staring me in the face."

"What? What?", the first baby emplored.

"Oh all right", said the second baby.

"YOU'RE WEARING PINK SOCKS"