One idea could be that She - Venom has a unique connection to Spider - Man's spider - sense. Maybe her symbiotic abilities interfere with it in unexpected ways, leading to some comical or dangerous situations as Spider - Man tries to adapt. Another could be a story where She - Venom and Spider - Man have to team up to stop a new super - villain who is immune to the regular attacks of both of them, forcing them to combine their powers in creative ways.
In a Venom x Spiderman fanfiction, a plot could involve Venom and Spiderman having to work together to stop a symbiote invasion from another dimension. The symbiotes from this other dimension are more aggressive and have different abilities. Spiderman has to use his intelligence and web - slinging skills, while Venom uses his brute strength and symbiotic powers. Along the way, they could start to understand each other better, and Venom could learn some of Spiderman's sense of responsibility. This would be a great opportunity for character development for both of them.
One idea could be that Venom and Spider - Man are forced to team up against a new symbiote villain that is far more powerful and malevolent. This new symbiote could be controlling innocent people, and Spider - Man and Venom have to find a way to stop it without harming the hosts.
One idea could be exploring how the relationship between Spiderman and Venom changes during the pregnancy. Maybe they become more protective of each other.
One plot idea could be that the female Venom has a split personality. One side is attracted to Spiderman, while the other side is a more menacing villain. This creates an internal struggle within her as she interacts with Spiderman. Another idea is that she and Spiderman have to team up against a common enemy, like a new symbiote that is causing chaos in the city. As they work together, they start to understand each other more and a romantic tension builds.
Perhaps there could be a story where Agent Venom is framed for a crime he didn't commit, and Spiderman is the only one who believes in his innocence. They then go on a journey to clear Agent Venom's name while also uncovering a bigger conspiracy in the city. Along the way, they have to fight off other villains who are after them.
Perhaps a plot where Spiderman and She - Hulk are framed for a crime they didn't commit. They have to go on the run while trying to clear their names. Along the way, they discover that a powerful criminal organization is behind the frame - up. This organization is trying to take over the city's underworld. Spiderman uses his stealth and intelligence, and She - Hulk uses her brute force to fight back against the organization's minions. They also have to deal with the public's distrust of them as they are now seen as criminals.
One idea could be a story where Spiderman has to team up with his greatest enemies to fight a new, more powerful threat from outer space. This would force him to put aside his differences and find common ground with the likes of Doctor Octopus and Green Goblin.
The dynamic between Spiderman and Venom makes a fanfic interesting. Their opposing natures - one a hero, the other an anti - hero or villain - create a lot of tension and potential for great storylines.
One plot idea could be that Spiderman and Mantis team up to fight a new villain in the city. Mantis uses her empathic abilities to sense the villain's motives, while Spiderman uses his webs and strength to physically combat the foe. Another could be a story where they get accidentally transported to an alternate dimension and have to work together to find their way back home. They might face strange new enemies and allies in this dimension.
Another plot could involve a mad scientist who creates a device that can drain the powers of superheroes. He first targets Superman, but Spiderman gets involved when he sees the chaos in Metropolis. As they try to stop the scientist, they discover that the device has a side effect of giving the heroes new, unexpected powers for a short time. They have to quickly learn to control these new powers while also dealing with the main threat.