Timeless by Jaclyn Weist

When Jenny and Genevieve switch places thanks to Prince Gavin’s kiss, their lives are turned upside down. Now Jenny is stuck in a time of castles and princes, while Genevieve must navigate the unfamiliar world of indoor plumbing, malls, and high school.

In order to return to home, they must break the curse caused by that fateful kiss. The only catch? They can’t fall in love or they’re stuck forever. Now if only the princes around them weren’t so charming!