Sixteen year old Molly McGarry thought it was really weird when she was able to be inside her boyfriend, Gideon Rayburn's, head. But it turned out to be so helpful to her relationship with him that she adapted and learned to live with it. Not only that, she learned how to make it work so Gid would think she was the only girl in the world for him because she always seemed to know exactly what he wanted when he wanted it.

Then one day, Gideon made a fatal mistake and Molly felt she had no choice but to break up with him. Of course, she couldn't really tell him WHY she was breaking up with him since it would require that she confess she knew he had been thinking about the drop dead beautiful Pilar Benitez-Jones, their classmate. Things get even worse when confused Gideon hooks up with Pilar and, suddenly, Molly isn't in Gideon's head anymore; she's in PILAR'S!

Poor Molly has not only lost her boyfriend AND her best friend, Edie, but now she's got to walk around in Pilar's head. Pilar, who thinks about nothing but how beautiful she is, and how other girls rate so little in comparison with her. Oh, and she thinks about Gideon a lot, too. In fact, the only thing that's keeping her from having sex with Gid is that she's certain her stomach is too fat for him to see her naked. This is all in her mind but that's ok with Molly because as long as Pilar believes she's fat, Molly doesn't have to deal with Gideon and Pilar having sex while she's still in Pilar's head.

Then, there's the fact that Molly's been asked to join the Academic Tete-a-Tete, or ATAT. She really doesn't need, or want, to have her every waking minute taken up with practicing for this, but she so needs the full college scholarship that winning will provide her. Also, being on the team may just be what will help her win her best friend back.

For anyone that's ever been curious about what it's like to be a teenager in this day and age, this is the book for you! Adults as well as young adults will enjoy THE OTHER GIRL. You may feel like you know what it means to be a teenager as you were once one yourself, but it's a whole new ballgame now! Teenagers will love this book because Sarah Miller truly understands and she doesn't pull any punches. This is a book for many ages!