Lucas is a big fan of babies. He loves to gently rub their faces and kiss the tops of their heads. He even carries his stuffed Elmo around like a baby, wrapped in a blanket.

Today in the van on the way to dropping him off at day care, he was telling me that baby Elmo came out of his stomach but that he doesn't have any more babies in his tummy.

I was trying to tell him that's because only women have babies.

"No. Miss Mandy and Miss Mary have babies in their tummies," he said, referring to two teachers at the day care.

"They're women," I said.

"No, they're not," he said. "They're teachers."