A great plot could be that a powerful alien artifact has been stolen and Spider Man and Wasp are wrongly accused of the theft. They have to work together to clear their names and also find the real thief. Along the way, they discover a conspiracy that is much bigger than they initially thought and they have to use all their skills and wits to expose it.
One idea could be that Spider Man and Wasp team up to fight a new villain that is causing chaos in the city. Their partnership gradually turns into a romantic relationship as they discover more about each other during their battles. Another plot could involve them getting trapped in an alternate dimension where they have to rely on each other to find a way back home, and during this time, their feelings for one another deepen. A third plot might be that Wasp is in danger and Spider Man has to go to great lengths to save her, which makes her see him in a new light and start a relationship.
One idea could be them teaming up to fight a new, powerful villain that neither of them could defeat alone. They'd have to combine their technological and shrinking abilities in a unique way.
A plot idea could be that the Ant Man and the Wasp get their powers swapped accidentally. This would lead to a lot of comical and also challenging situations as they have to adapt to each other's abilities. They would need to learn how to use the new powers quickly in order to face a new villain who is taking advantage of the chaos. Also, perhaps the Wasp's suit could have some hidden features that are only revealed when Ant Man tries to use it, which could add an interesting twist to the story.
Well, one interesting plot could be that they have to keep their identity swap a secret from their enemies. Spider - Man in the Wasp's body would have to figure out how to use her shrinking and flying abilities to fight crime, while the Wasp in Spider - Man's body would struggle with his web - slinging and enhanced strength but also use her intelligence to come up with new strategies.
One idea could be a fanfiction where Ant Man and Wasp team up with other superheroes to fight a new, powerful villain from another dimension. They would have to use their unique shrinking and flying abilities in creative ways to outwit the enemy.
One idea could be exploring the different Spider - People's home universes in more detail. For example, showing what Miles Morales' daily life in his universe was like before becoming Spider - Man. Another could be a team - up between Miles and an older, more experienced Spider - Person from a different universe to face a new and powerful villain.
Perhaps there's a fanfiction where Spider Man and Spider Gwen accidentally swap powers. They have to learn how to use each other's abilities to fight crime. This would lead to some really funny and also challenging situations as they get used to different ways of web - slinging and sensing danger.
Maybe in the fanfic, Spider - Man and Wasp are framed for a crime they didn't commit. They then have to prove their innocence while also dealing with other superheroes who are after them. They would need to combine their skills, with Spider - Man using his strength to fight off attackers and Wasp using her stingers to defend themselves when in close combat.
Another plot idea is that the pregnancy causes a rift between Ant - Man and The Wasp. They might have different ideas about how to handle the situation, like whether she should continue being a superhero or focus solely on the pregnancy. This conflict could drive the story as they try to work through their differences and come together for the sake of their family.
A plot could revolve around Scott and Hope's relationship facing a test. For example, a powerful entity tries to split them apart by creating misunderstandings. They then have to work through these issues while also dealing with threats to the city. They might discover new things about each other's pasts that either strengthen or strain their bond.