6 Swiss Ball Moves to Make Your Butt Round AF, Cosmopolitan

Fitness trainer Brittany Perille Yobe will show you how to get your best booty ever with these Swiss ball moves. SUBSCRIBE to Cosmopolitan: Cosmopolitan is the bestselling young women s magazine in the U. S., a bible for fun, fearless females that reaches more than 18 million readers a month. We deliver the latest news on men and love, sex, fashion and beauty, women s health and selfimprovement, and