You are Jungkook's girlfriend. One day you visited your boyfriend's apartment, and there was Jungkook's older brother there, he said to you.

Taehyung: "Be my boyfriend, then I'll give my black card to you, baby" he said teasing you.

Jungkook who heard it then pulled your jaw looking at him

Jungkook: "Dare you take that money, I'll make you pregnant with my child right now!" he said firmly