Kelsey is Ashton Irwin's sister. He likes to keep her more of a secret to protect her, as she is quite fragile, medically. When she finds out that she only has six months to live, Ash invites her on tour with 5SOS. When she falls for one of the bandmates, how will either of them handle the heartbreak that is to come? (Takes place a few years in the future)

Elle is Josh Devine's little sister. She isn't your ordinary girl. Elle is a bit of a wild child. This summer, her parents leave her in the care of Josh due to some family issues. Josh has to keep an eye on her all summer whilst being on tour in America with One Direction. Elle manages to have the summer of her life with a few bumps in the process and finding love with someone special along the way.