Ever since Ellie wore a whale swimsuit and made a big splash at her fifth birthday party, she's been bullied about her weight. To cope, she tries to live by the Fat Girl Rules--like "no making waves," "avoid eating in public," and "don't move so fast that your body jiggles." And she's found her safe space--her swimming pool--where she feels weightless in a fat-obsessed world. In the water, she can stretch herself out like a starfish and take up all the room she wants.