Sour

Fifteen-year-old Grace Kennington has always been the obedient, innocent girl in her wealthy island community-polished, kind, and loyal to her tight-knit circle of friends. But everything changes the summer Ryan, Scarlette's older brother and the untouchable king of the island, returns from college. Reckless, magnetic, and dangerously charming, Ryan draws Grace into a world she's never known-filled with secrets, manipulations, and emotions that are far too intense for someone her age.
As their bond grows, so does the tension, the misunderstandings, and the unspoken rules of attraction. Grace finds herself torn between loyalty and desire, innocence and curiosity, friendship and a crush that could destroy everything she thought she knew. In a summer defined by temptation and heartache, Grace will discover that love isn't always sweet-and sometimes, it's painfully, irreversibly sour.