>>32613614Fit girls don't necessarily have big butts, but a bigger ass means less shape and more sag in general. All ass experts know that:
>shape >>>>>>>>>> size>Firmness leads to shapeliness, therefore, fit girls have the firmest glutes, which leads to a delicious derriere. Of course, the bone structure of a woman's pelvis and hips accounts for much of the succulence of their south end, but fit girls objectively have the best asses.