The book was about a boy trying to impress this one girl, and over the summer, he works out with his two friends and tries to get better. All the while a good friend of his, a girl who's name I don't remember is cruelly labeled the blimp, due to her obesity. When over the summer he realizes the girl he wants is not for him, his friend the blimp comes back from summer camp and becomes a complete gorgeous person. There was also something about him losing weight by eating a diet burger at Mcdonald's and running laps at a track. If I can get the title to his book I would be so happy.