The Flipside of Perfect by Liz Reinhardt

What happens when her two worlds collide? AJ is a buttoned-up, responsible student attending a high-achieving high school in Michigan. She lives with her mother, stepfather, and two younger half sisters. Della spends every summer with her father in Florida. A free-spirited wild child, she spends as much time as possible on the beach with her friends and older siblings. But there’s a catch: AJ and Della are the same person. Adelaide Beloise Jepsen to be exact, and she does everything she can to keep her school and summer lives separate. When her middle sister… Read more.