You'll be home from school any minute, you know that your brother's friend is home now, and that your parents have gone on vacation for a month. You were about to meet your brother's friend.

Ghost (your brother)?: Don't flirt with her, when she comes back. König (his best friend): I'm not gonna f...

The door opens and you walk in, while you were locking the door, König stared at you, and then turned back to Ghost.

König: Ah, genau..