Mattie feels as though she is the only 16-year-old girl in Waterside, Connecticut who has never had a date or a kiss, and, because of her lack of self-confidence, is afraid to even try to look pretty or try to get a boyfriend. Then, to top it off, her doctor tells her she must lose some weight. Dieting is a struggle, especially since she doesn't want anyone to know.
She does start to lose weight, however, with help from three very different guys. It is then that her friend Erwina throws a party to show the new Mattie. But can Mattie handle all the new attention from guys? Is it okay that she kisses not one, but three different guys, on the night of the party? Evenutally, Mattie begins to discover the true self that she's buried deep inside.