the car ride in:
Cass: Mommy, where is the special opening that dogs have their puppies out of?
Me: (swerving to get back on the road and hoping I heard him wrong) Umm...what?
Cass: You know, where dogs have puppies.
Me: Between their legs.
Cass: (clearly horrified) You mean they have puppies through their penis?
Me: (another pause while I fight to not explode in giggles) No, honey. Only girls have babies, and girls don't have penises. Girls have vaginas.
Rosey: (flatly) I no have penis.
Me: No, Rosey, you don't. You have a vagina.
(Rosey sing-songs 'guy-na, guy-na' in the backseat)
Cass: So Rosey's going to have puppies? Cool!
Me: Only dogs have puppies. Only girl dogs.
Rosey: Tass! Tass! I no have penis! Has Guyna.
Cass: (rolling eyes) Yes, Rosey, we know.
Cass: Mommy? Is that a secret?
At this point I gave up, pulled over to the side of the road and laughed myself into a wheezing fit.