This is set when Harry's son, James, is 13 and Viktor Krum has a daughter named Viktoria who is a famous singer. She is also 13. This a short story I wrote.
James: Dad, when are they coming?
Harry: They should be here soon...go check outside...
James raced downstairs at full speed. He had not seen Vicky seen they were 8, and she had sent him tons of owls carrying letters, she was obsessed with him. James didn't care for Vicky that much, but for some odd reason, couldnt wait to see her. He unlocked and opened the door to see viktor Krum and Vicky standing there. Vicky was much like her father, she had his curved nose, beedy eyes that were the color of chocolate. She looked older than she was too, and, like her father, scowled at everything, but she didnt scowl at the moment James had opened the door. Instead she smiled big, revaling beatiful white teeth, and practically knocked James off his feet with a hug. Harry came down shortly after James and allowed Viktor and Vicky to come in.
James: Sooo....hey
Vicky: Hey...
Vicky seemed so immobilized and smitten at the moment that all she could do was beem at James. She had loves him ever since they met. She especially loved his dark black hair and big green eyes. Everything about him seemed perfect.
James: Come'on, lets go up stairs with Rose....
Vicky followed up after James walked into his bedroom, there to await one of her biggest fans, Rose. Rose squealed and begged for her autograph, and after she calmed down, she left.
James: So what have you been doing other than concerts and stuff?
Vicky: Tours with celestina warbeck...games with my dad, basically...nothing unusual.. (she laughed)
James: How's Durmstrang?
Vicky: ....ok, i still hate it
James: yeah..Hogwarts is awesomer
Vicky: awesomer is not a word
James: wanna bet?
Then all of a sudden he lurched forward and started tickling Vicky untill they were both pink in the face and laughing
THE END