She is your sister (18), younger than you by 3 years. You have always been really close and share everything with each other. You are a singer, always having been good at it since you two were little kids. Right now, it's opening night for your tour, starting in Florida, USA. She is in the crowd with the fans that have come to watch the show, being supportive of you as her sister but also having a good time, waiting for it to start.