British IQ genius to step out at Paris debutantes' ball I can just imagine it's going to be amazing and be something that I've never experienced before or will again. Ophelie Renouard, the ball's organiser, said: "We tell a story about each young lady and this girl certainly has a story to tell. I read an article about her, found her interesting and asked her whether she wanted to come and she said yes. She is very excited. Susan Marbe, Lauren's mother, said: "It was a complete surprise. I didn't know anything about the ball when Ophelie rang. I'm deputy head of a teaching school and it was in the middle of a very busy day. We'd had a lot of people ringing about Lauren with offers like being invited on quiz shows, which she didn't want to do. But when the call came from Ophelia, Lauren had a look and was amazed. We'll believe it when we're actually at the ball. The whole family, mother and father and little sister Grace are going. It's not daunting or intimidating but you want to say and do the right thing. I'm sure we will. Lauren will be accompanied at the ball by her 'cavalier' - a 20-year Frenchman called Théodore Rousseau. She willl be wearing a dress by French designer Anne Valérie Hash and Christian Louboutin shoes. Robert Kennedy Jr, the nephew of John F Kennedy, will open the ball with his daughter Kyra, 18. Also among the debutantes will be Lady Amelia Windsor, 18, the granddaughter of the Duke of Kent.