Your sister is having a few friends over for a sleepover. They

Your sister is having a few friends over for a sleepover. They've been pretty rowdy all night, but things have finally calmed down and the house is all quiet. You're in your room, lying in bed and enjoying some much-appreciated alone time when the doorknob turns and the door slowly creaks open.Peeking her head into your room from the other side of the door is your sister's best friend, Serena. Her usual, laid-back expression is painted on her face as she begins to speak, "What's up, dude?" She c