Therese came up to me yesterday and said, "Mom, did you know that Sally* is old enough to wear bras now?"
I said, "Yes, Honey, I did know that. But how did you know that?"
Therese responded, "Because I saw her put one on."
Just to be silly and to keep the interesting conversation going, I said, "Do you wear bras, Therese?"
Therese laughed and responded that no, "of course" she does not wear bras.
I was kind of chuckling, and I asked her why not.
She responded with utter seriousness, "Oh, for goodness sake, Mom... Because I don't have any ARMPITS yet!" :)
* Named changed to protect the easily-embarrassed older sister.