Aunt Marge could be the subject of a time - travel fanfiction. Imagine if she was sent back in time to the era when Hogwarts was first founded. She would be completely out of her element, surrounded by powerful wizards and witches. She might try to impose her Muggle - like rules on them, but soon realizes that she has to adapt to survive in this new and magical environment.
One interesting storyline could be Aunt Marge learning about the wizarding world and having her views completely changed. Maybe she accidentally stumbles upon Diagon Alley and is amazed by all the magic there. At first she's scared and wants to run away, but then she becomes curious and starts to interact with the magical beings, which in turn changes her perception of Harry and his world.
In the fanfiction, they could be forced to work together on a project related to lemons. Maybe there's a local fair that requires everyone to contribute something lemon - themed. Through this shared task, they begin to understand each other better. Harry realizes that Aunt Marge has her own insecurities and Aunt Marge sees that Harry is not the troublemaker she thought he was. For instance, Harry could show his creativity and intelligence during the project, impressing Aunt Marge.
One idea could be that Aunt Marge accidentally eats a lemon - flavored magical treat that makes her temporarily nice to Harry. For example, she might start complimenting his schoolwork at Hogwarts instead of her usual mean - spirited remarks.
Aunt Marge could be developed by showing her having a moment of self - reflection. She might realize that her harsh treatment of Harry was wrong and start to be more empathetic. For example, she could see Harry's kindness towards animals and that could change her view of him.
Maybe she has a secret soft spot for animals, like the dogs she breeds. In a fanfiction, she could find out that some magical creatures are being mistreated, and she decides to use her influence in the Muggle world to help protect them. This would show a different side of her and make her more likable.
Maybe it would be about Aunt Marge realizing Harry's good qualities. For example, she could see how brave he is in the face of danger. This newfound respect could lead to her liking Harry.
One possible plot could be that Aunt Marge discovers Harry's difficult situation at the Dursleys and decides to secretly help him with his magic studies. Maybe she has a change of heart after seeing how much he's struggling.
One possible storyline could be that Bart discovers a magical lemon tree in the backyard. Marge initially doubts it, but as strange things start to happen, like the lemon granting wishes that affect the whole family in unexpected ways, they have to figure out how to deal with it. For example, a wish made on the lemon might accidentally make Homer act like a child, leading to humorous family situations.
It could develop into a more tolerable one. Harry might start to see Aunt Marge as a pitiful figure rather than just a mean old woman. Maybe he discovers some things about her past that make him more empathetic.
There could be a fanfiction where Aunt Marge discovers she has some magical ability herself. This would completely change her view of the wizarding world and her relationship with Harry. She might end up joining Harry on some of his adventures, much to everyone's surprise.
One interesting plot could be that Aunt Lemon discovers Harry's magical abilities before he goes to Hogwarts. Maybe she stumbles upon him using accidental magic to fix something broken in the house. She could then be conflicted between her Muggle views and this newfound knowledge, and start to secretly protect Harry from the Dursleys' worst behavior.