I would definitely not perform the Brazilian Butt Lift and Butt Implants at the same time. Fat graft survival for the Brazilian Butt Lift will depend on having maximum blood flow to keep the fat cells alive. If you place an implant at the same time, you will be diminishing the amount of blood flowing to the areas of fat placement because many of these blood vessels are cut when we put in Butt Implants. Also, the pressure from the Butt Implants will diminish the amount of blood flow to the fat grafts. I always recommend having the Brazilian Butt Lift performed first (as it is the safest and provides the most natural feel and appearance) and get the most out of that as you can. You may find that you are very happy with that alone. If you are not, then you can always go back later and get Butt Implants.
NO If you have enough fat to transfer, then the best option is to have fat transfer to the buttocks for ENHANCEMENT If you do not have enough fat , the other option is dermis fat graft taken during a tummy tuck If you do not have that then a Butt Implant. The two procedures should not be done at the same time. This will make the fat graft not take properly