If Spider-Man held onto the symbiote, it might give him an edge against villains, but at the cost of losing control and potentially becoming a threat himself. It could also cause internal struggles as he tries to balance the power and its negative effects.
One possibility is that Spider - Man would struggle with the symbiote's darker impulses. The symbiote might try to influence him to be more aggressive in his crime - fighting, which could lead to him crossing some moral lines. For example, he might use excessive force against minor criminals.
The 'Peter keeps the symbiote fanfiction' could potentially delve into Peter's internal struggle. On one hand, he has this powerful symbiote that gives him great strength, speed, and other abilities. But on the other hand, he has to constantly fight against the symbiote's urge to be more violent and less moral. It might also involve him trying to hide the symbiote from his friends and enemies alike, creating a lot of tension and interesting plot twists as he tries to balance his life as Peter Parker and his new, more complex life as Spider - Man with the symbiote.
A common theme is the struggle for control. The symbiote has its own will, and Peter often has to fight to keep it in check. For example, in many fanfics, he battles with the symbiote's urge to be more violent.
Peter is the central figure in this fanfiction. He's the one who has to deal with the symbiote. But also, his friends like Ned Leeds and MJ might play important roles. They could be the ones who notice the changes in Peter due to the symbiote and try to help him or at least figure out what's going on. Maybe Flash Thompson could also be involved, either as an antagonist or someone who gets caught up in the chaos that the symbiote - influenced Peter might cause.
His relationship with Mary Jane would likely be affected. She might sense that something is different about Peter (Spider - Man). He could become more distant or moody because of the symbiote's influence, and this could cause some strain in their relationship.
Well, a possible plot for female Peter Parker with a symbiote could involve her using the symbiote to explore new parts of the city that she couldn't reach before. The symbiote might allow her to climb higher buildings or swing faster. Also, she could have an internal conflict where the symbiote tries to influence her decisions in a more self - serving way. She has to constantly fight against this influence while still using the symbiote's power. Additionally, she might encounter other symbiote - related characters who either help or hinder her journey.
One great Symbiote Peter Parker fanfic is 'Venomous Intent'. It explores a darker side of Peter with the symbiote, full of intense action scenes and moral dilemmas.