Main Character Attractiveness Disorder is a mysterious and swift-acting disease that strikes the majority of main characters from any piece of fictional work. If they are young and attractive, then they will inevitably be paired up, by fanfiction authors, with anyone else that is ever mentioned even once in canon, with no regard to the other person's age, gender, familial relationship, sexual orientation or connection to the character. If they're in the canon, then a fanfiction author will pair them with the main character.