Again, Sam is on the toliet and I just got out of the shower.
Sam: Why you don't have a penis?
Me: Girls don't have penises. They have...um, other body parts.
Sam: Oh. Grills (he can't say "girls" to save his life) don't have a penis?
Sam: You a grill and you don't have a penis?
Sam: Hmm. (pauses, thinking it over). That must be hard on a person.