Ashton Carter Tomlinson is the Step Sister of Louis Tomlinson. Their mother and Father are going away on a family vacation for the summer. Ashton and her best friend go stay with her step brother and Harry Styles for the summer. Her Best friend, Izzy is a huge fan of One DirectionShe can't seem to contain herself, it's quite funny actual. But Ashton is treating them like normal teenage boys being just like a younger sister is suppose to be, annoying, and mean to Louis, but that's sibling rivalry. They all begin to hang out more, and she discovers a lot of things about them, she thought they were just big egotistic, annoying sarcastic, mean and embarrassing. No their not. We're not what you think.