Well, in many fanfictions, the Avengers protect Peter by always having his back in battles. For example, Captain America might shield him from incoming attacks with his iconic shield. They also offer him guidance. Tony Stark could be constantly giving him advice on how to improve his suit and combat skills.
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.'
Peter was running through the forest when he suddenly tripped over a hidden root. Pain shot through his ankle as he tumbled to the ground. His friends, who were a little ahead, quickly rushed back to him. 'Peter, are you okay?' one of them asked, concern etched on their faces. Peter winced and tried to stand but couldn't put weight on his injured ankle. They decided to make a makeshift splint using branches and some cloth they had. As they worked on it, Peter gritted his teeth, trying not to cry out from the pain.
Because Peter is often portrayed as a young and inexperienced hero in fanfiction. He's like a little brother to the Avengers, so they feel a sense of responsibility to protect him.
One common theme is mentorship. Often, characters like Tony Stark take Peter under their wing. Another theme is Peter's growth as a hero, learning to use his powers better. Also, the theme of friendship within the Avengers team is common.
Well, without actually reading it, it could be about Peter (presumably Peter Parker, Spider - Man) and his adventures related to the Infinity Stones in an Avengers - centric fanfiction. Maybe he's trying to protect the Stones from villains or help the Avengers use them in some new way.
Iron Man, on the other hand, might be more direct. He could use his technology to track Peter's actions and confront him. He might threaten to expose Peter's identity if he doesn't stop. And Thor would probably be angry at first. He values his fans a great deal and seeing Peter bully them would make him want to use his hammer to teach Peter a lesson, but then he would also try to understand the situation.
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.
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.
If Peter was adopted by the Avengers, his relationship with Wanda Maximoff could be quite special. Wanda could help Peter understand and control his emotions better, especially when he's under stress during battles. Peter could also befriend Vision, and together they could explore the boundaries of science and magic. The Avengers would start to see Peter as a full - fledged member of the family. They would be more protective of him, and Peter would feel a stronger sense of belonging. His relationships would no longer be just about superhero partnerships but would be about real family connections. For example, they would celebrate holidays together and have family - style dinners, which would strengthen their bonds even more.