Celine Tsoi and Charles Mock met two years ago in Goleta, California when she was just 23 and he was 27. Friends immediately asked: "Oh, are you getting a prenup?" "A lot of things could happen in a marriage and you want to discuss them when you still love each other rather than when things go bad and you want to take revenge," says Celine. She was particularly touched that Charles wanted the prenup to say if they split up, she should have the house. Just having the conversation "can show you what the person you're going to marry is like", she says.