Iron Man might be protective. He'd probably see Spiderman as a young protege and would want to keep his identity safe using all his tech resources.
One plot idea could be that the Avengers discover Spiderman's identity during a mission when his mask gets damaged. Then they have to protect his secret from villains who are also after it.
He usually laughs a lot. Spiderman, being a young and energetic character, would likely find the tickling both surprising and hilarious. His natural reaction would be to try and squirm away while laughing uncontrollably.
The other Avengers would be devastated. Iron Man, for instance, might feel guilty as if he could have done something more to protect Spiderman. He might become more withdrawn and focus even more on creating better technology to prevent such tragedies in the future.
The three Avengers could be Iron Man, Captain America and Thor. Iron Man could provide the high - tech gadgets and strategic thinking. Captain America would bring leadership and his combat skills. Thor with his godly powers like lightning and super strength would be a great addition. They would each have different interactions with Spiderman, for example, Iron Man might be like a mentor to him, while Thor could be more of a friendly rival in terms of strength.
Spiderman might use his agility and web - shooting abilities. He could quickly web up Venom, restraining his movements and preventing him from attacking the Avengers.
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.
During the viewing, Natasha might be the one to start discussions about the fanfiction's plot and how it relates to the real Spider - Man. Tony would jump in with his own ideas and interpretations, often disagreeing with the others just for the fun of it. Thor would be constantly asking questions, like why Spider - Man doesn't have more god - like powers in the fanfiction. Steve would be listening attentively and chiming in when he thinks the story goes too far from the values he believes in. Clint would be using the opportunity to relax and just enjoy the chaos of the Avengers' reactions.
In some fanfiction, Spiderman might hurt the Avengers due to mind control. For example, if a powerful villain like Loki gets hold of Spiderman and forces him to fight against the Avengers, he could cause harm. Another possibility is a misunderstanding. Spiderman might be tricked into believing that the Avengers are a threat and act accordingly.
In many fanfictions, the Avengers might use their combined powers. For example, Iron Man could provide high - tech gadgets or suits to help Spiderman out of a tough situation. Captain America could lead the rescue mission with his strategic mind, and Thor might use his lightning powers to defeat the enemies surrounding Spiderman. Hulk could also be there to smash through any barriers in the way of saving Spiderman.
In fanfiction, if Spiderman was captured by the Avengers, it could lead to a lot of misunderstandings. Maybe the Avengers thought he was involved in something bad due to false information. They might question him about his recent activities in New York. Spiderman would be in a tough situation, trying to prove his innocence while being held by some of the most powerful heroes.