Meet Ella and Olivia. Big sister. Little sister. Best friends. Ella and Olivia are sisters. Ella is seven years old. Olivia is five-and-a-half years old. They live with their mum and dad and little brother Max. Ella and Zoe are having a big sleepover! But Olivia is feeling left out. Why can’t she stay up late telling stories and eating lollies too?