Out of the mouth of babes

An American Girl catalog came in the mail today and I gave it to Kaiya to look at. I have no idea how we made it on the mailing list and she has no idea what American Girl dolls are. However... the catalog is fun to look at. So she is browsing through it and comes to the page with this doll on it:
and says in a sing-songy voice: Oooooo.... Sexy Lady. I did a double take! Did she just say, Sexy Lady? She repeats the phrase several times. Yep. When she prances around in her pretend high heels or dances in her dress, that is what Tony and I say to her. Oops. We'll be changing that to something like: Hot Stuff. Sexy Lady has been eliminated from our vocabulary until Kaiya is old enough that I don't have to explain to her what "sexy" is.

The next question is -- why of all the dolls does she declare this one as sexy lady?