each person is diffrent. weight is stored in diffrent places for diffrent people. like me, its the legs. when i decided to lose weight, most of it came out of the legs, and it showed. yours probably just naturally gravitates towards your stomach area.
Well, that happens to almost anyone. Those parts of the body that gain the most weight are often called "problem areas" ... They could be due to genetics, health issues, or just the way your body forms..