Maybe she is like Katherine Mcphee. Maybe she does not like her own bellybutton.
Katharine has never said she doesn't like her own bellybutton; only that she thinks it looks 'really gross' when she 'pulls it out and makes it stick out.'
Besides, why would anyone self-conscious of a certain body part show it off so often?
I agree with rrcomic that Maria is purposing hiding her outie, since they are frowned upon by fashion and beauty "experts". Kat, on the other hand, isn't ashamed, considering all the bare belly outfits she wears (in the summer). If there is one female celebrity that is ashamed of her outie, it's Kristin Kreuk. She hides her outie like it's a government secret. To this day, there's only a handful of pictures of it, and most of them are accidental.
