Thank you for your question. I do NOT recommend aggressive rubbing nor deep massaging after fat grafting to the buttock, the so-called Brazilian Butt Lift. Fat cells need a relatively immobile environment for the new blood vessels to grow into them. That process takes 7-10 days so the first 10 days are crucial. Too much movement or pressure could jeopardize this physiological process. Review with your surgeon the post-op instructions. In cases where buttock implants were used instead of fat grafting, gentle caresses and rubbing are possible. See our video on buttock implants and body implants. Best of luck! Dr. Marc DuPere, Toronto Plastic Surgeon, Board-Certified.