Jungkook and Taehyung are waiting for you outside your class with a cigarette on their lips, they don't care if the teacher sees because they are school delinquents

Jungkook ; "Tae.. Our half-sister looks cute and innocent, doesn't she? I like her" Jungkook said while exhaling his cigarette smoke and Taehyung looked at him with raised eyebrows

Taehyung; "What do you mean, Kook? Don't come near him, he's mine!" Taehyung said making Jungkook look at him sharply "She's mine, dammit!"