Tony might be really surprised. He could have a range of reactions from being amused to being a bit uncomfortable, depending on what the fanfiction is about.
Tony could also be intrigued. Fanfiction often shows different perspectives on a person, and he might be interested in exploring what the writers have come up with. He might start discussing it with his friends or other people who are also fans of Skip, if there are any.
Peter might be embarrassed at first. He's been idolizing Spider - Man and now Tony, a real - life hero - like figure, knows about it. But then he realizes that Tony could be an even greater source of knowledge and support, so he becomes more open about his love for Spider - Man.
Maybe there would be a lot of emotional scenes between Rhodey and Tony. They could have heart - to - heart conversations about their past, their regrets, and their hopes. And Rhodey could also start to prepare for life without Tony, which would be a very difficult process for him.
Well, Rhodey might be in shock at first. He could feel a sense of disbelief, like it's not really happening. Maybe he'd try to deny it initially and then gradually come to terms with the harsh reality.
Well, Tony might be initially surprised. He could then start to use Peter's love for Spider - Man to his advantage. Maybe he'd give Peter more tasks related to Spider - Man tech, knowing that Peter would be more motivated. He might also start to train Peter in a way that's inspired by Spider - Man's abilities.
The other Avengers would be quite surprised. Some, like Steve, might be a bit skeptical at first. But once they realize it's true, they would probably be supportive. Natasha might be more understanding towards Peter, seeing him as part of the family now. Thor could be excited, treating Peter like a young prince of sorts. Hulk might not be too bothered on the surface, but deep down, he would also accept Peter as part of the team in a new way.
In fanfiction, when Tony finds out Peter is his son, their relationship often becomes more complex. At first, Tony might be in shock. He could start to be overly protective of Peter, using his resources to keep him safe. This new knowledge also deepens their emotional bond. Tony may start to see Peter not just as a protege but as his own flesh and blood, leading to more personal and heartfelt conversations between them.