I got that compliment again

I was at the store and the sales lady asked about the baby, "So, is he your first?" "No, he's number 6" "You do NOT look like you've had 6 kids!"

I have been getting this comment for a long time. But today I put the question to her. What is a mom of six kids supposed to look like? Portly? No makeup? Scraggly hair? The lady got a twinkle in her eye and went on to help the next customer.

Can anyone help answer this question? What about walking dead with dark circles under the eyes? I mean what????

Something like this perhaps?