In 'Avengers think Peter is Tony's son' fanfiction, how do the other Avengers react to this assumption?

Peter might be really nervous at first. He's used to being just the friendly neighborhood Spider - Man, and now the Avengers know he's Tony's son. He could be worried about living up to their expectations.

Well, at first it might make the other Avengers be overly protective of Peter. They would see him as Tony's legacy and might hold him to high standards. For example, Captain America could be stricter with him in training, thinking he should live up to what Tony would expect. This could make Peter feel pressured as he has to constantly prove himself not just as Spider - Man but also as 'Tony's son' in their eyes.

Peter is likely to be in awe. He might be a bit nervous at first, but also extremely excited. He has looked up to the Avengers for a long time, so meeting them would be like a dream come true. He would probably be stuttering a bit as he tries to introduce himself and show his respect.

Tony Stark might use his quick wit and technology. He could immediately scan Peter to make sure there's no physical danger causing the hyperventilation. Then he'd probably crack a joke to try and calm Peter down, like 'Kid, you breathe any faster and you'll fly away like a human jetpack.'

Thor could be angry. He's a proud warrior and being kicked out like that might be seen as an insult. He might even challenge Tony in some way, either verbally or physically. However, he also has a sense of honor and might listen to Tony's reasons if given the chance.

Peter would probably develop a closer relationship with Steve. Steve, being the moral compass of the team, would take on a sort of father - figure role. He'd give Peter advice on being a hero and living up to the 'Stark' name in a good way.

Peter would probably have a closer relationship with the Avengers, especially those who were close to Tony. For example, he might have a special bond with Pepper, who would be like a mother figure to him. And he would be seen as more of an insider from the start compared to his normal origin. He could also get more direct training from the likes of Captain America or Thor.

They might be in shock. Tony has a complex past, and seeing it all unfold could leave them speechless.

They might be shocked at some of the dangerous situations Peter has been in without their knowledge. They could feel guilty for not being there to protect him more. And they would likely be very proud of his selfless acts.

They could react with surprise. After all, Peter is still young. But then they would likely be happy for him. Maybe they'd offer to take MJ out for a nice dinner to get to know her better.