Donghyuck just wanted to be a normal teenager living a normal life. Which turns out to be impossible when he has a step-brother like Taeyong. "What do you think you're doing? / I'm just talking with your friend. / I asked you to not do anything! / But I'm your older brother- / You're my brother not my father. / It's still my job to talk with anyone who has stolen your heart- / Stolen my heart? What kind of books have you been reading?" || one-shot - 1.3k words || [originally posted at AO3 and AFF on 7/feb/2017]