My Lone Star Summer — D. Anne Love

It's finally summer and Jill is thrilled to return to her grandmother's Texas ranch. It's here she and her good friend B.J. ride bikes, climb trees, and share secrets. But Jill is stunned when she sees the "new" B.J., who is interested in boys, cheerleading tryouts, and rock music. What's worse is Jill thinks B.J. won't be her friend if she doesn't change her immature ways. But whether Jill is ready or not, the changes will keep on coming during that lone star summer.