well i think it's a lot about the way she carries herself in that dress. u want to wear the dress proudly. u dont let it wear u, u know? confidence. walking like u know ur sexy in that thing. but also very down to earth of course.
because nice flowy long dresses go with the womans body... from top to bottom.. they dont not show much skin,.. but they show the shape of of a woman.. which makes it sexy and elegant without being slutty.. but one needs to have a tall and very good figure to pull it off..