Harry Potter and the Prisoner of Azkaban attacked by a big black dog, which Harry has seen several times before. The dog drags Ron through a tunnel under the Whomping Willow into the Shrieking Shack. Harry and Hermione follow, and there is a brief standoff when they find Ron with Sirius Black, who has transformed from the dog. Lupin enters, and they explain the situation to Harry and his friends: Lupin is a werewolf, which led to his friends James Potter, Sirius Black, and Peter Pettigrew becoming animagi. Lupin explains that Scabbers is Pettigrew in his animal form; he has been hiding from Black, whom he had
Harry Potter fandom which feature sexual relationships that do not exist in the books ("shipping"), often portraying homosexual pairings. Famous pairings include Harry with Draco Malfoy or Cedric Diggory, and Remus Lupin with Sirius Black. Harry Potter slash has eroded some of the antipathy towards underage sexuality in the wider slash fandom. Tracey "T" Proctor, a moderator of FictionAlley.org, a "Harry Potter" fanfiction website, said 'I don't really get into the children's aspect of it, but rather the teachers, the adult characters. I read someone once who said, "If she didn't want us fantasizing about her characters, she needs to stop having these