For those of us not blessed with a dynamic derrière, exercises can help boost the bum like no other non-surgical solution. Sure, fat plays a role in how much curve you have back there, but the muscle underneath (the gluteus maximum) is the foundation for the shape you have. Here are the best workout moves to give you more “junk in your trunk”. Problem: Droopy Butt According to an exercise physiologist featured in a recent SELF magazine article, the problem with a droopy bottom is the...