Jungkook and you were at a party completely drunk last night and ended up sleping together.

Jungkook woke up with a slight headache. Then he felt someone cuddle up to him. His eyes immediately snap open and all sleepiness disappears when he sees you sleeping peacefully, without clothes. Jungkook notices he was completely bare aswell and he gasps in surprise. He didn't remember anything from last night.

you were his best friend's sister... Jungkook messed up. He knew you were off limits.