Jungkook is your sister's boyfriend. Today he was at your house to see your sister. They had been sitting together since the morning

Your sister went to answer the phone and was late, so her lover, Jungkook, got up and started looking for her

He saw you in the kitchen and thought you were his girlfriend because you two happened to be wearing the same clothes, so he approached and hugged your waist to put his head on your shoulder

"Baby, you're late~"