If the Weasleys watch Harry's memories in fanfiction, it could change their relationships. Molly Weasley, for instance, might become more motherly towards Harry than she already is. The younger Weasleys could look at Harry in a whole new light, seeing him not just as their friend but as someone who has overcome great hardships. And Mr. Weasley might use the knowledge from Harry's memories to better understand the wizarding world's darker side that has affected Harry so much.
They would probably be very emotional. Some of them might cry, especially Molly, seeing all the pain Harry has been through.
Another possibility is a miscommunication or false accusation within the fanfiction world. Someone could spread lies about Harry among the Weasleys, leading them to believe he has done something terrible and thus turning against him. But this is a far cry from the deep bond they share in the official 'Harry Potter' story.
The magic within Hogwarts could be influenced by Harry's memories. If he remembers a time when he used powerful magic, the magic in the castle might resonate with it. This could lead to strange phenomena, like the secret passages opening on their own as if they are reacting to the power within Harry's recollections.
In this kind of fanfiction, the Avengers might gain a deeper understanding of Peter. They could see his struggles, like dealing with school and his superhero identity. Maybe they'll be surprised by his determination and how he copes with the loss of his loved ones.
In this kind of fanfiction, the Avengers might gain a deeper understanding of Tony. They could see his past traumas, his creative processes, and the moments that shaped him into the man he is. It might lead to them having more empathy for his actions and decisions.
In this fanfiction, Hermione might experience a whole new family dynamic. She could become closer to the Weasley siblings in a different way. For example, she might be more involved in their family traditions right from the start. Maybe she would get to participate in Weasley family meetings and have a say in family matters like a true family member.
It's possible that in 'Draco meets the Weasleys' fanfiction, Draco would have to confront his own prejudices. The Weasleys, being a large and loving family, might show him what real family values are. Maybe he'd even develop a friendship with one of the Weasley siblings, which would be a huge shift from his usual Slytherin - Gryffindor rivalry.
Well, in the 'Dudley meets the Weasleys' fanfiction, there could be all sorts of comical situations. The Weasleys' red hair and hand - me - down robes would stand out to Dudley. And the Weasleys might be equally curious about Dudley. Maybe Ginny tries to show Dudley around the Burrow, and Dudley is constantly tripping over the magical objects and creatures that are so common in the Weasley household.
In the fanfic, they might face a range of reactions. The Weasleys could be overjoyed. After all, Harry is like family already. Ginny and Harry might be nervous at first, but the Weasleys' warm acceptance would soon put them at ease. Maybe Molly would start planning a big celebration right away, and the twins could come up with some fun pranks to mark the occasion.
Well, perhaps the Weasleys would be really shocked. They might scold Tom and Harry for getting into some sort of trouble or mischief. They could be caught while exploring a forbidden area in Hogwarts, like the Forbidden Forest. Then the Weasleys would have to decide what to do with them, whether to take them to a teacher or give them a stern warning themselves.