Hogwarts +BIGBANG

hey, your Y/n your a girl sorry not sorry guys, but your brother is T. O. P from bigbang and the Yule ball is coming up and Mattheo asked you to the Yule ball and you said yes but you have nothing to wear so.... you call your brother and he may or may not get you a LV dress and btw mattheo and you are gonna wear black and green for the Yule ball