This patient had fat grafting to the breasts at the same time as a tummy tuck using the fat from the tummy tuck.
As you can see it added at least one cup size, despite her continuing to lose weight and holding up over 6 years. There has been some increase in droop of the breasts with those 6 years and weight loss.
There is more superior fullness as well as volume. In clothes the difference is even more remarkable. And this while losing weight. The original tummy tuck and fat grafting was in 2011 and the follow up pictures were in 2017.