Being Jungkook's best friend and enemy at the same time is lethal. He could be so freaking annoying now then the next his all sweet and nice to you.
Jungkook is a year older than you and he always took it seriously, espe when he tells you to do something then hits you with the, "I'm older, so do it". It pisses you off and since he comes over a lot, your family was basically his family. When your parents are out, they'd put him in charge. Like, come on, bro.
Tonight your parents were out for a little date night so you had to take care of your younger siblings. Of course, Jungkook was there and was in charge. It was close to 10pm and the two of you were watching a movie. He turned to you.
"You know it's past your bedtime, right?"
He said just to tease you a bit. It's a Friday night. There was no 'bedtimes' on weekends. PLUS YOU'RE 18!