Exactly... wtf.. lol.. hell no, i would bet you are skinny and hot ��
All playing around aside, 128lbs is not fat. To measure body fat you can use calipers to pinch areas, electrical impedance measuring or volume displacement.
Any change in diet alone will have you loose weight, combine a basic exercising routine and being consistent will keep the positive gains.
I think you are looking for a quick easy fix.... for you simply change your macro counts and be more active. Switch to whole grain, focus on omega fatty 3 and 6 acids, drink more water, eat fish or chicken more than beef and plenty of vegetables, limit the fruits to preworkout and only have protien before bed no carbs. Eat dmaller meald throughout the day and aim to eat no more than about 1000-1400 calories while aiming to burn at least 700-1000 calories a day which is easy as riding a spin bike, playing raquetball, swimming or something like jiujitsu or boxing for at least an hour. Throw in some lightweight high rep weight training and focus on those glutes girl. You should be golden unless you are interested in competing. If you are just looking to improve your overall health and get toned with a flat belly (which i doubt you even look thick at all or have a little belly).
Only thing in my mind is that maybe you are a mother and have the extra baby pouch left over .. if that is the case too, the abive woukd work. No need to get all crazy and scientific. Just keep it simple, eat better, be more active and watch the changes occure.