Fanfiction about Peter and MJ in the context of Spiderman and Spiderwoman often plays with different timelines and universes. For instance, there could be a fanfic set in an alternate universe where MJ has superpowers too. This would change the dynamics of their relationship completely. Writers can also explore how Peter and MJ interact with Spiderwoman in these fictional stories.
In the traditional Spiderman comic arcs, MJ remains alive. However, there might be alternate universes or special storylines where her fate differs, but in the core continuity, she survives.
A common theme is also the idea of support. MJ being there for Peter during his superhero battles, and Peter relying on MJ's strength and understanding. And of course, the theme of adventure. Sometimes MJ gets dragged into Peter's adventures as Spiderman, and how they face those together.
Sure. 'The Everyday Adventures of Spiderman and MJ' is a great one. It focuses on their daily life together, with Peter trying to balance his superhero duties and his relationship with MJ. Another is 'MJ's Perspective on Spiderman'. This fanfic gives readers a deep look into how MJ views Peter as Spiderman and in their personal relationship.
Good character development. If the fanfic allows MJ to grow as a character, perhaps she starts to learn self - defense to be able to help Spiderman better in dangerous situations. It also applies to Peter's growth in his relationship with MJ, like learning to be more open about his feelings.
There is also 'Love in the Shadows' where the fanfic delves into the more private moments between Spiderman and MJ. It explores how they keep their relationship a secret from the outside world, adding an element of mystery and tension to the story.