Well, sometimes in fanfic the Avengers make fun of Peter's suit. They could say it looks like a pajama or something. Maybe Tony Stark, in a teasing way, comments on how Peter's web - shooters are a bit too 'homemade' compared to his high - tech Iron Man suits. Another instance could be that the Avengers mock Peter for his clumsy moments when he first joins them, like tripping over his own feet while trying to show off his acrobatic skills.
In some fanfics, Peter might be exposed to a dangerous new technology. The Avengers, led by Bruce Banner, use their scientific knowledge to protect Peter. They analyze the technology and find ways to counter its effects on Peter. Natasha Romanoff also uses her espionage skills to track down those who are behind the threat. The Avengers' diverse skills are all utilized to keep Peter out of harm's way, which is a common and great theme in 'Avengers Protective of Peter' fanfics.
One example could be the Avengers accidentally revealing Peter's secret crush during a team meeting. Maybe they were sharing stories and someone let it slip that Peter has a huge crush on a girl in his class. Another instance might be when they tease him about his old, dorky homemade Spider - Man suit in front of other superheroes. It could also be that they play a prank on him during a mission, like making him think he's lost his powers for a moment, which causes him to panic and look a bit silly in front of everyone.
One good example could be a fanfic where the Avengers shield Peter from a powerful villain who has a vendetta against him. They form a protective perimeter around him during a battle, with Thor using his lightning to create a barrier and Iron Man's suit systems on high alert for any incoming threats.
Peter might get a bit flustered at first. He's young and looks up to the Avengers, so being made fun of could make him blush or stammer. But then he usually bounces back with a witty comeback of his own. For example, he might say something like 'Well, at least I don't have an old - fashioned shield' to Steve if Steve teases him about his suit.
It could also be due to jealousy. Peter might be getting too much attention from the public or other superheroes. His youth and new - found popularity could make the more established Avengers feel overshadowed, leading to feelings of resentment towards him.
It could be that Peter's immaturity showed in a crucial situation. He might have been over - confident and tried something really risky without thinking it through. The Avengers, being more experienced, would be frustrated with his recklessness and thus yell at him. They want him to learn and grow, but his actions might have been too much to tolerate at that moment.
Well, in some 'Avengers adopt Peter fanfic', a great plotline is when the Avengers discover Peter's identity and decide to take him in. They start to teach him things like how to better control his powers. There could be a plot where Peter has a falling out with one of the Avengers, like Thor perhaps, over a misunderstanding about how to use his powers in a certain situation. Then they have to work through it and become closer as a family.
One interesting scenario could be Peter impressing the Avengers with his quick thinking during a battle. For example, he uses his web - slinging skills in a unique way to outwit an enemy that the Avengers were having trouble with.
He might also get angry. Peter has a strong sense of justice. If he feels that the Avengers are being unfair, he could stand up to them. He'll use his quick wit and his powers to show that he's not going to be pushed around easily.
One possible reason could be a misunderstanding. Maybe Peter accidentally gets involved in something that looks bad to the Avengers, like being in the wrong place at the wrong time during a security breach. So they misjudge him and are mean as a result.