Hi there-
The two procedures you're asking about can, in fact be performed together. It may be difficult to do so safely, however, as immediately after a tummy tuck it is ill-advised to lie flat on your stomach, and performing your Brazilian Butt Lift requires it, it is usually better to stage them.
Doing them in the opposite order also presents problems, as after your Buttock Augmentation it is not recommended that you lie flat on your back or sit on your new buttocks for some time.
So, to summarize, I think there are many procedures that can be combined, but being able to do so does not necessarily mean that it is in your best interests... Remember that the goal is for you to look as good as possible, not to combine procedures. Understanding this, you would be better off optimizing the circumstances for both procedures.
I hope that helps you.
