With his friends like Ned, unmasking could make their friendship even cooler. Ned has always been a bit of a fanboy, and now that he knows Peter is Spider - Man, he could be even more involved in Peter's superhero life. They could work together on some new tech for Spider - Man, making their bond stronger.
It could create a trust issue. Some Avengers might question why he was unmasked in the first place. Was it carelessness? Or was he forced? This could lead to tension.
Another plot could be that Spider - Man unmasks himself voluntarily to gain the trust of the public. He realizes that the city is losing faith in him due to all the destruction that often occurs during his battles. By unmasking, he shows that he is just an ordinary person trying to do good, and this could lead to a more united front between him and the people of New York against the super - villains.
His relationships within the superhero community would shift. Some heroes might respect his decision and stand by him, while others might think he's being reckless. This could create rifts and new alliances within the already divided superhero groups during the Civil War in the fanfiction story.
One idea could be that Peter Parker decides to unmask himself as a political statement during the Civil War. He might feel that the secrecy in the superhero community is causing more harm than good and by unmasking, he hopes to start a new era of transparency among heroes.
It can strain his relationships. If the experiment gives him new powers that are hard to control, he might accidentally harm his loved ones, causing distance. For example, if he has a new power that causes electrical shocks, he could shock his friends when he doesn't mean to.
It would likely strain his relationship with Iron Man. Since Iron Man supported the Sokovia Accords, Spider - Man, if he's against them, would find himself at odds with his mentor. Their interactions would become more tense and filled with ideological differences.
The Infinity Stones would likely put a strain on Spider Man's relationships. His friends and family might be worried about the power he holds. For example, Aunt May might be constantly afraid that he'll get hurt or that the power will change him for the worse. His relationship with MJ could also be affected. She might be in awe of his new power, but also a bit intimidated.
Definitely Mary Jane. If Spider Man is unmasked, her reaction would be crucial. She has always been an important part of his life, and her response could range from shock to immediate acceptance and support. Another great character is J. Jonah Jameson. His reaction to Spider Man's unmasked identity would be quite entertaining, as he has always been on the fence about Spider Man, sometimes seeing him as a menace and other times as a hero.
Well, in Avengers fanfiction where Spider - Man is unmasked, one possibility is that his identity revelation could lead to a divide among the Avengers. Some might trust him more fully, seeing his young and vulnerable self behind the mask. Others could be worried about the danger it poses to him and the team, as his enemies now know who he is. For example, Iron Man might take on a more protective role towards Peter Parker, while Captain America could be concerned about the security risks.
One interesting plot could be Spider Man's identity being revealed to a select group of people who then have to protect his secret from a powerful villain who would use it against him. For example, his closest friends might find out and have to deal with the newfound knowledge while also facing threats from bad guys trying to get to Spider Man through them.