Boys have a penis, girls have a vagina.

Oh dear. Bill O'Reilly has caught the transgender wee wee bug, and he can't stop thinking about those poor, pitiful traditional families, who are just trying to raise their kids the normal way -- you know, boys have a penis, girls have a vagina, and daddy drags mommy down the stairs by her neck, in front of the kids. Regular stuff!

Know what's not traditional? Take it away, Bill: