Don't worry my sweet younger sister. Before you know, you will get older. You won't have to wait for them to come home to go somewhere or do something. You won't have to tell them where you are going and how long you will be out. One day you won't just be the younger sister, you will be older. Don't worry they will treat you as an adult. Before you know it, there will be a separation that you hadn't quite prepared for. You won't have to worry about telling your day to them and listen to their counsel. But I must tell you, you will miss it. You will miss being able to lie down on their bed in comfort and peaceful bliss. Not that being a grown-up is bad, it is just full of worries that I hadn't anticipated. And it is strange at these moments I wish I could sit on the bed and listen to their counsel and just their voices.
Don't be too excited to grow-up. Stay in that peaceful bliss as long as you can.