Help! How do you tone this kind of bum? NEED TO KNOW ASAP? :)?

do lots of cardio!! basically what it is is that's where your body stores fat. so to get rid of it, do a lot of cardio, watch what you eat, and do toning exercises. Pilates is great for toning the legs/thighs/bum. You can also do really basic stuff like squats, leg lifts, etc. hope this helps!