I had a twin brother, so I got to experience being a boy and having a brother. It had a big impact on me and served as a template for a lot of my male friendships, and I'm a little sad that my son won't ever experience that. But not so sad that I'm willing to have a third kid!

With falling family size, same-sex siblings are becoming more rare... at least among my friends. Here are my stats:

ME: Yes, a twin brother.
MY KIDS: Nope, we have a boy and a girl