Received Butt Implants Oct 2016 can I now do BBL on top of the implants that didn't give me the result I wanted?!

Hello and Great Question.  I appreciate the time you are spending researching this procedure.  My name is Dr. Matthew J. Nykiel.  I am a Board Certified Plastic Surgeon, a Fellowship Trained Cosmetic Surgeon, and a Butt Augmentation Specialist.
Yes, you can get a BBL after a butt implant.  A BBL usually does not give the butt as much volume or "pop" to the butt as a butt implant.  The main benefit of the BBL is it will bring in your waist and widen your hips which will give a more heart or round shape to your overall torso.  What size butt implant did you get?  Another option is to simply place a larger butt implant.I hope that helps!  Best of Luck!
Matthew J. Nykiel, MD#TopREALSELFDoctor#CoreREALSELFDoctorButt Augmentation SpecialistLiposuction SpecialistBoard Certified Plastic Surgeon

 If you are happy with your buttock  implant surgeon then I would first turn back to him or her and for sound advice. Every surgeon has different opinions on this but I typically  caution my patients against doing fat grafting after successful buttock implants. Please read below:  
 I generally do not recommend fat grafting at the same time as placing buttock implants, or after,  because of a significantly increased risk of infection. For fat to survive it must be grafted into muscle, however that is also where the implant sits. Thus, if fat it injected into the implant or implant pocket then it will die and almost assuredly get infected - necessitating removal of the implant as well. Fat transfer later on must be done very carefully and cautiously, preferably by the original surgeon, for the very same reasons as above.  And even if an infection is avoided, the the long term survival of the fat is quite poor (20 - 30% at best)....to me, it's just not worth the risk.  Instead I typically recommend up-sizing the implant after a year. Glad to help. 

I see no reason why you could not move forward with a Brazilian at this time.
You may be at very slight hard shells of complications though this procedure has been done many times and most patients do fine.
Best,
Mats Hagstrom M.D.