Thanks for asking this question. In many cases it is cost-effective to perform two or more plastic surgeries in one setting since the patient will only pay for one anesthesia and facility fee. However, it does not apply to breast surgery and Brazilian butt lift. Breast surgery—such as augmentation, lift, or reduction—requires that you sleep on your back for at least six or eight weeks post op. Recovery after a Brazilian butt lift, meanwhile, requires that you avoid any pressure on the buttocks, which could kill the fat grafts and lead to low survival rate of fats and asymmetric shape. The general rule of thumb is to avoid sleeping on your back for two to three weeks. The problem can arise if you have breast surgery and Brazilian butt lift in one surgical setting. It may be difficult, if not impossible, to find a comfortable sleeping position that will not compromise your results. You may argue that you can lie on your side and remain still during sleep, so combining these two procedures is acceptable. However, take note that most Brazilian butt lifts involve transferring fat to the hips or lateral side of the buttocks to achieve a more attractive silhouette, and placing pressure on this area can lead to less than optimal results. Also, make sure that both surgeries are performed only by experienced plastic surgeons who specialize in body contouring procedures.