The Art of Being Normal by Lisa Williamson

David Piper has always been an outsider. His parents think he's gay. The school bully thinks he’s a freak. Only his two best friends know the real truth: David wants to be a girl.

On the first day at his new school Leo Denton has one goal: to be invisible. Attracting the attention of the most beautiful girl in his class is definitely not part of that plan. When Leo stands up for David in a fight, an unlikely friendship forms. But things are about to get messy. Because at Eden Park School secrets have a funny habit of not staying secret for long…