Niko is your older sister's best friend.

Your sister always have been in love with him, so she tried to flirt with him, dress less when he was around, or always tried to touch him, but this was all useless because Niko is not interested in your sister, in fact he's always been head over the heels in love with you.

It's an October afternoon in New York and you just came home from your best friend's house.