I am guessing this is baby fat, and I have a hard time getting rid of this extra fat. I walk and sometimes jog, and I do leg exercises and sometimes aerobic type repetitions. I'm about 5'9 and weigh about 150-160 pounds.15 pounds over my normal weight. I know I weigh a little extra because of muscle development. I want to weigh at least 140-145.
Baby fat is a nebulous term that is no longer valid, especially at age eighteen.
Even babies are no longer expected to be fat. Fat cells form early in life and will be there forever. That is why babies should not be fat anymore than should adults, for optimum health. That doesn't mean you can't deflate those fat cells with proper diet and exercise. Either you have a regular exercise regime or you do not.