I do not think we are saying she will get a big ass by working out, but she will definitely get a nicer shape for what she does have. And losing weight overall will make her body look better proportionally wise.She's a nice looking woman even without azz shes still proportionate enough in other areas to still pull it off.
For those of you thinking she can just hit the gym and have a nice azz a lot of those women you see with big phat azzes were blessed with good genetics the same with women with naturally big none surgically breasts.
Not much you can do about that either you were blessed with it or you weren't.