You need to consult with a plastic surgeon and clearly express your goals.Treatment of the flanks and lower back with liposuction is the mainstay to treating the "muffin top". By subtracting fat from those areas, the contours leading into the buttocks will look better, the buttocks will be better defined and look better.If you desire more fullness in the buttocks, then the addition of fat is needed.Best wishes, Dr. Connall