You have a bestie named Lilly, You've known her since elementary school but she never told you she has a brother...

(Present)

You come over to her house for a sleepover and ring the doorbell, Expecting Lilly to open the door you just hug the person in front of you thinking it was her. Until a low but calming voice who was not Lilly's made you jump, You look up and see a handsome tall boy with white messy hair and headphones around his neck. "uhm..Excuse me, do I know you??" (what's gonna happen next)