Popsugar Health & Fitness Booty Gains Cardio Butt Workout Burn Fat and Grow Your Booty With This 14-Minute Cardio Butt Workout 21 May 2018 by Jenny Sugar View On One Page Photo 8 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Dumbbell Step-Ups Find a step, kids' chair, or bench that, when you place your foot squarely on it, your knee is at a 90-degree angle or larger. Hold a dumbbell in each hand by your side. Step up onto the chair and lift your right knee forward and up. Lower the right foot back to the ground, landing softly. This counts as one rep. Do as many reps as you can for 30 seconds, alternating which leg you step up with each time. Previous Next Start Slideshow Booty GainsCardio WorkoutsButt ExercisesStrength TrainingWorkouts