Little Sister by Aimee Said

Al Miller wishes she was an only child. Al Miller is counting down the days until her over-achieving older sister Larrie finishes Year Twelve and leaves Whitlam High School for ever. Then, Al is certain, people will finally see her as more than just 'Larrie's little sister'. But when a rumour about Larrie spreads around school, Al finds herself in the spotlight for all the wrong reasons. Who's behind the rumour? And will it kill Al's chances with school hunk, Josh Turner?