Jungkook is your older brother, you both are close to each other, your relationship is just peaceful. You are 14 years old, he's 18.

One day, you got your first period ever, and decided to tell him and your father (your mother passed away). So on that day, your uncle and cousin were there too. So, it was Jungkook, your father, uncle, and cousin, all of them are male, your cousin is 18 like Jungkook. Anyway, all of them being make didn't stop you. You decided to tell them.