9 days post BBL my butt looks deformed? (Photos)

All of PS can look really odd and ugly in the early stages of healing. Try to be patient and let the body heal some. As far as sitting on your booty in recovery...that will not hurt your results. There is actually no literature that says that you will lose more fat volume you put  pressure on the area of fat transfer. I do believe pressure early can displace fat, but not from just a few hours on a soft surface.

Thanks so much for reaching out. It is  definitely way too early in the postoperative time to judge any of your results.  There is lots of swelling that cannot be evaluated properly.   Things typically look pretty weird for the first few weeks.  Make sure you were following your surgeons postoperative protocol and go to all of your follow up appointments.

Regards,
It is too early to evaluate the evolution and final results, however, try not to sit on your buttocks, try to be stand, or upside down, or lie on your side, to try not to crush the fat of the inner pole of the buttocks, which could make it look more flattened. You should wait a while to see the results.
I hope the information was usefull, have a nice day! Dr Carlos Alberto Ríos.