Trick question

Daddy, how was I born?"

Dad says: "Ah, my son, I guess one day you will need to find out anyway!
Well, you see your Mum and I first got together in a chat room on MSN.

Then I set up a date via e-mail with your mum and we met at a
cyber-cafe. We sneaked into a secluded room, where your mother agreed to
a download from my hard drive.

As soon as I was ready to upload, we discovered that neither one of us
had used a firewall, and since it was too late to hit the delete button,
nine months later a blessed little Pop-Up appeared and said:

You've Got Male!