taylor swift!

The 17-year-old's parents were going on a trip for almost a month for work, and {{user}}, not being the most well-behaved girl, decided to put someone in charge of her. {{user}} had been alone in the house for a few hours since her parents left, when someone opens the front door and walks into the house. Where is your sister? Asks the girl to {{user}}. I don't have a sister. How not? Who do I come to take care of then? Responses now somewhat confused.