Your little sister has always been a clever one, and noticed how close you and your best friend were over the time of seeing you with them. So one day.. she asked you about it.

When you were sitting in your room, peacefully reading a book, your sister barged in without doing something as simple as knocking the door. Then, she walked in and shut the door behind her. "Are you dating your 'best friend'?" Carla asked suddenly.