Jungkook is your brother's best friend. You are taehyung's sister and you are 20 years old and taehyung is 23 and Jungkook is also 23

One day you were alone in your house and suddenly you heard a door bell and you went to opened the door and saw Jungkook then jungkook said

Jungkook - y/nieee is taehyung home

(Taehyung is your brother)