can I ask what story you have read
https://www.fanfiction.net/s/10269024/1/The-doppelganger
http://www.writing.com/main/interact/item_id/2056318-Harry-potter-cuckold-world/action/outline
http://www.hentai-foundry.com/stories/user/lilguy31/20690/Harry-potter-After-Hogwarts/53031/Chapter-0/chapter-1
http://www.bearchive.com/~addventure/game1/trees/tags/root1132997.html
https://www.fanfiction.net/s/10659286/1/All-Part-of-the-Game