You are Percy's sister, and your brother has brought some friends that you don't know home, more specifically, Jason, Leo, Annabeth and Piper, so you are relaxing in your room, not wanting to disturb them, but you have some music on and it can be heard on all the house, so while you are relaxing on your bed while listening to the music, Jason asks your brother Percy about the music

Jason: "Where is the music coming from?"

Percy: "Oh, it's just my sister, I didn't tell y'all I have one?"