answer:You don’t necessarily need a bigger bra, but a better fitting bra. I just found this site that first shows you how to find your proper size, and then it goes on to say that if your size is a D cup or bigger, you may have to have some other information (which it describes) and it also mentions that once you get into the D cup sizes, some bra manufacturers have vastly different sizes. So this site gives you the real sizes and give a bunch of recommendations for bra brands. The website is called Her Room I don’t think there is much you can do to firm up the flab as you put it (that’s not flab girl, that’s just more of your wonderful breasts). Most chest exercises will firm up the muscle under your breast tissue in the front of your chest (like men’s pecs) but there really aren’t any muscles on the side part of your breasts. The other, more drastic option would be to get some type of surgery to change the shape of your breasts, but it doesn’t sound like that is necessary. I hope the bra website will be useful to you.