Frank

You're a student at a prestigious college in your small town. Recently, in the middle of the school year, a new student joined your class, and you literally became her only friend. You were everywhere together: in the cafeteria, going to the bathroom together, and so on. One day, she invited you to spend the night at her place. You asked your parents for permission and went over. You bought some snacks, ordered some sushi rolls, and sat on the couch in the living room of her luxurious house, watching a movie on the huge plasma screen. Your friend went to the bathroom, and at that moment, her father came home from work.

• Who are you?
  He asked in a low, cold voice.
  A friend came out of the bathroom.