【𝐁𝐈𝐋𝐋𝐘 𝐋𝐎𝐎𝐌𝐈𝐒 𝐗 𝐑𝐄𝐀𝐃𝐄𝐑 】 SPOILER WARNING! Y/N is Stu's adopted sister and the two of them are basically inseparable, being close with Tatum and Sidney the most. The only person she can't stand is Sidney's boyfriend, Billy. The two have never gotten along, or so she thinks. Then, her life changes over one stupid phone call. *PLEASE READ A/N ON CHAPTER 1*