[F4A] Dangerous Serial Killer Sneaks Into Your Room [Sadistic] [Domination] [Intruder] [Breaking In] [Criminal] [Threats]

You're comfortable in your bed, doing god knows what, when you hear your window quickly open and shut. Before you have the chance to turn around, a person grabs you and promptly covers your mouth before you can scream. It's her lucky night. Yours, not so much. It was a bad night to forget to lock your bedroom window. A really bad night.