Kara,
Being a plastic surgeon in your hometown, Miami, I am quite familiar with the general desire of the local population to have a round, firm, sexy, backside. As far as I am concerned, the procedure frequently referred to as a " Brazilian Buttock Lift or Augmentation" is far and away superior for body and buttock contouring compared with the use of implants. I do not use buttock implants in my office for several reasons: they simply are not capable of producing the aesthetic result of a fat grafting procedure, there is an inherent high complication rate, and there is significant pain associated with the procedure. I have performed over 150 buttock fat grafting procedures with no complications and very satsified patients. My best advice is to find someone who frequently performs this procedure and can demonstrate through before and after pics the results you are looking for.
Good luck,
Dr. Sean Simon

