Maybe in this fanfiction, Peter's mutation into Spider is caused by some new and experimental Oscorp technology. The process is different from how he originally got his powers. As he mutates, he starts to lose some of his human memories and instincts, becoming more primal like a spider. His relationship with Aunt May would become very strained as she tries to understand what's happening to her nephew. Meanwhile, he has to face off against new enemies that are specifically attracted to his new spider - like form, thinking he's some kind of new prey or threat in the city.
His personality might become more reclusive. Since spiders are often solitary creatures, Peter could start to withdraw from his social circle. He might be less likely to engage in his usual banter with his friends at school. Instead, he'd be more focused on his new - found spider instincts, like finding quiet places to rest or being more aware of his surroundings in a way that makes him seem aloof to others.
One possible plot could be that Peter Parker's transformation into a spider is a permanent one. He has to deal with not just his regular superhero duties but also the new challenges of being part - spider all the time. Maybe he has to learn new ways to communicate with other spiders to gain some special knowledge or power.
Well, in this fanfiction, perhaps Peter Parker begins to mimic a spider's hunting behavior. Instead of just using his powers to fight crime in the traditional way, he starts to stalk his enemies from the shadows, waiting patiently for the perfect moment to strike. He could also use his webs to create elaborate traps, like a spider does for its prey. This would give a whole new and interesting dynamic to his crime - fighting adventures.
One possible plot could be that Peter, after some tragic event that makes him lose faith in the justice system and superhero code, decides to take matters into his own hands in a more extreme way and becomes an assassin. He might target those who he believes are getting away with crimes that the law can't touch.
Perhaps the female spider is a mutant spider. After biting Peter Parker, it causes his DNA to mutate in a different way than the original spider - man origin. He could start to transform into a half - spider creature at unexpected times, which would be a huge challenge for him to keep his identity secret and also control his new form.
One possible plot could be that Peter has lost his home due to some financial difficulties or perhaps after a villain attack destroys his place. He has to use his Spider - Man skills to survive on the streets. He might start by finding safe places to sleep at night, like on rooftops where he can also keep an eye out for trouble. Maybe he befriends some street kids and protects them from local thugs, all while trying to keep his identity a secret.
One possible plot could be Peter struggling to keep his identity as Spider - Man a secret while also dealing with the challenges of Tourettes. For example, he might have to be extra careful during battles so that his tics don't give him away.
One possible plot could be that Peter Parker is experimented on by some villain who wants to create chaos. The experiment goes wrong and it starts to mess with his mind, turning him into a Joker - like figure. He then starts to cause mayhem in New York City, using his spider - powers in ways that are more for destruction and amusement rather than heroism. His friends and family are shocked and try to figure out what happened to him and how to bring him back to his normal self.
One possible plot could be that Peter discovers he has Asgardian blood through some magical accident. He then starts to have visions of Asgard and is eventually drawn there. Once in Asgard, he has to prove himself worthy, just like Thor did with Mjolnir, but with his own unique set of skills as Spider - Man.
Well, it could be about Peter Parker getting trapped in subspace while on a mission. He might encounter strange entities there that he has to outwit to find his way back. Maybe he discovers some new powers or abilities while in subspace that help him in future battles in the normal world.