I would like to know what I can do to fill out the dents from my BBL? (Photos)

So I got a bbl about 2 years Ago and I always noticed one side looked flat and now I can see a huge dent on one side from the side it doesn't look the same on either side what can be done to help it look rounder where the dent is and so both sides can look more alike I also have one side that is bigger that's where I drew the pink line I was considering getting Lipo but from what I've read that can make the problem worse so maybe filling out the dents with fat ?