One common plot twist could be that the Black Cat steals something crucial from Spider - Man that he was relying on to defeat a major villain. For example, she might take a new piece of tech he was going to use against a powerful enemy, leaving him at a disadvantage. This would add drama and conflict to the story.
In some fanfictions, the Black Cat might pretend to betray Spider - Man as part of a bigger plan. She could be working undercover for a good cause, but Spider - Man doesn't know this at first. So, he thinks she's truly turned against him, which leads to a lot of misunderstandings and action - packed scenes as he tries to stop her while she's actually trying to help in a roundabout way.
Another plot twist could be that the Black Cat betrays Spider - Man by revealing his secret identity to one of his enemies. Maybe she does it out of spite or because she's been blackmailed. This would completely change the dynamic of the story as Spider - Man has to deal with his enemies knowing who he really is.
It can also change the power dynamics. Spider - Man might become more isolated and have to rely more on his own wits and skills without the Black Cat's support. This could lead to him developing new abilities or strategies in the fanfiction. For example, he might have to form new alliances or learn to fight in different ways.
A common theme is the complex relationship between them. Their love - hate dynamic is often explored, with the Black Cat sometimes being a love interest and other times a thorn in Spider - Man's side.
One common plot twist could be that Spider Man was actually framed for the kidnapping. Maybe a villain set him up to make him look bad in the public eye while they carry out their real evil plan. Another could be that the person he 'kidnapped' is actually a secret enemy who has been manipulating events all along.
A theme that also stands out is the idea of identity. Black Cat has her own identity as a thief with a heart of gold in some ways, and fanfictions often play with how she reconciles that with the more heroic or positive aspects she might be trying to embrace. And of course, there's the theme of adventure. Since it's set in the Spider - Man universe, there are always new villains and challenges for her and Spider - Man to face together or separately.
The theme of mystery also pops up often. Black Cat is a mysterious character herself, and when combined with the events and settings of Spider - Man Homecoming, there are many opportunities for the writers to create stories full of mystery. Maybe there's a mystery villain or a hidden agenda that Black Cat and Spider - Man have to uncover together.
Perhaps in this fanfiction, the Black Cat has a personal vendetta against Spider - Man that has been brewing for a long time. Maybe she blames him for something that happened to a loved one. So she decides to take matters into her own hands and kill him. This could lead to a series of intense battles and chases as Spider - Man tries to figure out why she's after him and how to stop her without hurting her too much.
Not really. Fanfiction often explores different aspects of the characters' relationships and personalities. While there can be dark and angsty fanfictions, killing off a major character like Spider - Man at the hands of the Black Cat is not something that is frequently seen. There are so many other directions to take the story, like exploring their past, creating new villains for them to face together, or delving deeper into their individual character growth, that this kind of extreme and fatal plotline is not as common.
A typical plot twist might be that Spider - Man's friends are actually part of a secret organization that has an agenda against superheroes in general. They might see Spider - Man as a threat to their plans. Another scenario could be that they were bribed by a powerful figure to betray Spider - Man. This figure could have promised them wealth, power, or something else they desired. In some fanfictions, his friends might betray him because they are under the influence of a powerful and evil magic or technology that alters their personalities and loyalties.
One common theme is the relationship between the two characters. It could be a romantic relationship, with all the drama and challenges that come with it. For example, how they balance their superhero/villain personas with their feelings for each other.
One plot idea could be that Black Suit Spider - Man and Black Cat team up to take on a new super - villain in the city. This villain could have a power that is linked to some dark magic, which makes the black suit of Spider - Man react in strange ways, adding an element of mystery to the story. Another idea is that Black Cat steals something valuable that she thinks is just a regular jewel, but it turns out to be an alien artifact. Black Suit Spider - Man has to convince her to return it before it attracts unwanted alien attention to Earth.