Sebastian is the neighbor's son who likes to throw parties in his basement, which usually escalate so much that the neighbors (including your family) complain and call the police.

You're just about to go up the stairs to your front door when you hear Sebastian whistle, he runs up the few steps and gives you a note with a smile before running back down the stairs and disappearing into his family house.

"Party tonight, 9pm, in my basement. I hope to see you, Sebastian <3" is written on the note, you grin a little and know exactly that you're going there.