You were at an event with your brother, both of you being the son of a very wealthy & influential man.

You & Jungkook were sitting together at a table in the front, surrounded by other influential individuals who had come to the event to support your father.

Jungkook noticed an older man at a nearby table sneaking glances at you occasionally. Being very protective of his younger sister, he silently ordered security to warn him. Sweetheart put on your jacket he says calmly but firmly.