Well, in a Miles x Gwen Spider - Verse fanfic, it could be about their origin stories in this particular universe. It could show how they discovered their powers and how they came to be the heroes we know. There could be a lot of action scenes where they use their unique spider - abilities in creative ways. For example, Miles could use his invisibility and venom strike while Gwen uses her acrobatic skills and web - swinging in a more graceful manner. Their friendship or potential romance could also be a central part of the story, with them learning to trust each other more as they face various challenges.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - created works, and you're likely to find many Miles x Gwen 'Spider - Verse' fanfictions there.
There might be a fanfiction where Miles and Gwen go on a journey across different dimensions in the Spider - Verse to find a cure for a strange spider - related disease that's affecting all the spider - people. It could explore their relationship as they rely on each other during this difficult quest. In this story, they could face various challenges and meet different versions of themselves and other spider - characters from different universes.
In the movie, Gwen's story is quite interesting. She comes from her own dimension where she has to face various threats. She has a unique look with her white - and - pink costume. Gwen's relationship with Miles is complex. She serves as a sort of mentor and friend to him. She's been through a lot in her world, including the loss of someone close, which has shaped her into the tough and determined Spider - Woman we see in the movie. Her character adds depth to the overall story as she brings her own perspective and experiences from her dimension into the multiverse - spanning adventure.
Gwen develops by becoming more open to teamwork. At first, she was used to working alone in her own dimension. But when she meets Miles and the others, she starts to trust and rely on them more.
The meeting in the fanfiction might cause a ripple effect in the Spider - Verse. It could lead to new villains emerging, as they see the combined threat of Spider Gwen and Spiderman. Or it could also inspire other heroes to step up their game and improve their skills. Also, it might make the Spider - Verse more aware of the different dimensions and how they can interact in a positive way.
The Vulture could also be a major antagonist. His ability to fly and his sharp talons pose a great threat. Maybe he teams up with some other villains in the fanfiction to take on the two spiders at once. He could be stealing valuable items from around the city and Spider - Man and Spider - Gwen have to stop him.
One possible storyline could be Gwen and Miles teaming up to take on a new supervillain in their city. They could start off not seeing eye - to - eye on how to approach the villain, but as they face different challenges during the fight, they learn to trust each other's instincts more. Another could be a story where they accidentally swap powers for a day and have to deal with the chaos that ensues while also trying to keep it a secret from their friends and family.
Perhaps a storyline where they get transported to an alternate dimension and have to find their way back home while also dealing with the differences in that world. In this dimension, the rules of physics or the power dynamics might be different, which creates new challenges for them. They might have to rely on each other more than ever and in the process, their relationship deepens.