Hmmmm, I get you, firstly there's no need to be insecure about this, and secondly yes you should be able to tone it up using different bra's, such as push up bra's. Thirdly try jogging or running far distances in the mornings, it does help for me, I used to do only 3 miles on a treadmill and some cross trainer (which really tones your lower part of the body) and got a completely flat stomach, but bear in mind I did not have a large belly when I started, I done this for a month. Sorry if the advice may not be the best, after all i'm just a guy!