Imagine your girl is teasing you like Mia show us here. I love the casual outfit that turns into an absolutely hot look. During editing and preparing this posting, I saw why I love low rise so much. It's about subtle teasing and can easy turn into maximum teasing.
An other aspect is that a very short top and a very low rise are like a frame around the midriff - just like a frame around a picture - the female body as art.