The symbiote often makes Spider - Man more aggressive. He might be quicker to anger and less patient. For example, he could snap at his boss J. Jonah Jameson more often.
Spider - Man could develop a new sense of confidence, but also arrogance. The symbiote suit makes him stronger and more powerful, so he might start to think he can handle any situation alone. This could lead to him pushing away his friends and allies, like Mary Jane or Harry Osborn, until he realizes the error of his ways.
One great fanfiction idea could be that Gwen discovers Peter's secret identity in a really unexpected way. Maybe she stumbles upon his Spider - Man suit while looking for something in his room. This would create a lot of drama and tension between them as she has to decide what to do with this knowledge.
One great fanfiction could be where Gwen and Peter team up to solve a mystery in the city that the regular Spider - Man villains are not involved in. It could show their unique dynamic and how they complement each other's skills.
There are many great fanfictions out there. One I really liked was where Gwen and Peter went on a road trip together. During the trip, they encountered some small - time villains and had to use their combined wits to stop them without revealing Peter's identity. It was a really fun and light - hearted story.
A really interesting fanfiction might explore what would happen if Gwen found out about Peter's identity earlier in their relationship. It could delve into how their dynamic would change, and how they would handle the added danger that comes with knowing Spider - Man's true self.
Well, a great storyline might be the symbiote causing Spider - Man to have moral dilemmas. Since the symbiote can be a bit dark, it could push Spider - Man to cross lines he normally wouldn't. For example, using excessive force against criminals. Also, there could be a story where the symbiote's origin is explored more deeply in the fanfiction. Maybe it has a connection to an ancient evil that Spider - Man has to uncover. Another idea is that the symbiote starts to affect Spider - Man's perception of reality, making him see enemies where there are none at first.
A plot idea could involve the symbiote suit being able to communicate with other symbiotes from outer space. It could be luring them to Earth, thinking they can all live in harmony, but they actually want to take over the planet. Spider - Man has to figure out a way to stop this while also dealing with the fact that the suit is becoming more and more unruly as it gets closer to its 'friends'.
In some fanfictions, Peter might be killed by a time - traveling villain from the future. This villain has come back in time to prevent Peter from achieving something great in the future. So, he targets Peter at a vulnerable moment and kills him. This would create a ripple effect in the timeline and lead to a very different future for the Spider - Man universe.
In some fanfictions, Peter's death could be a result of a new and powerful villain. Maybe a super - strong and extremely intelligent foe who manages to outwit Peter and deliver a fatal blow. It could also be due to Peter sacrificing himself to save the city or his loved ones from a catastrophic event like a bomb or a collapsing building.