The tops of her undies don't show over her workout gear. It is just that she wears form-fitting spandex tights/leggings with shirts that stop at the waist (some of us wear longer t-shirts b/c we have ab issues! )...
So when she is in a deep squat you can see this triangle above her butt crack (sorry, tmi) which I assume is the top of the thong under her tights.
And yes, I do look at her butt. When I am feeling the urge to quit trying, I look at her bod and remember why I am working out....motivational ogling I suppose!
)...
