Some students would be quite accepting. For instance, Hagakure might be excited to learn about this new aspect of the fandom. However, Bakugo's reaction would be the most intense. He'd likely go on a rant about how it's none of people's business. Deku would be caught in a very awkward position. He respects Bakugo and doesn't want to make the situation worse. Class 1a as a whole would then have to deal with this new knowledge, and it could potentially change the dynamics between the students, especially between those who are interested in the fanfiction and those who are against it.
They'd be surprised. The more innocent ones like Tsuyu might just blink in confusion. And Todoroki might raise an eyebrow, not fully understanding what it's all about.
They might be really shocked at first. Some might find it a bit strange or unexpected, especially Bakugo and Deku themselves. They could end up blushing or getting really embarrassed.
Thor would be quite confused at first. Fanfiction is not something from Asgard. But once he gets the gist, he might say something like 'This is a strange Midgardian custom, but if it shows the great friendship of Steve and Bucky, then it is not all bad.' Meanwhile, Tony would be all over Steve, making snarky comments and asking if he's finally going to admit to some hidden feelings for Bucky according to the fanfiction.
Batman would be vigilant. He'd probably look into it to see if there's any threat or misinformation in it.
In many fanfictions, the Avengers' reactions vary. Tony Stark might be proud, like he's found a protege. He'd probably start upgrading Peter's suit right away. Captain America, on the other hand, would be more concerned about Peter's moral compass and whether he's ready to be a full - fledged Avenger. Hulk might not care much at first, but once he sees Peter's strength, he could become his ally. Overall, it's a mix of different emotions and actions.
They might be shocked and confused. It could lead to a lot of internal conflict and soul-searching among the team.
Peter could also be very nervous. He's still a young hero and being called by the Avengers in such a public setting like in class could make him feel self - conscious. He might stutter when he tries to answer their call and fumble with his things as he gets ready to leave. He'd be thinking about all the possible things they could need him for and whether he's really up to the task while also dealing with the eyes of his classmates on him.
Some of their friends might be shocked at first. For example, Gray might do a double - take and be completely speechless for a while. But then he would probably be happy for them in the end. Lucy would likely be overjoyed and start asking a million questions about how it all happened and when. Happy would be flying around them in circles, squealing with excitement.
Dick would probably be excited. He loves the idea of fans being so engaged with their world and would enjoy reading the different takes on their relationships. He might even leave positive comments if he could.
They would likely be shocked and angry. The Weasleys are a kind - hearted family. They might immediately take Harry under their wing more protectively, like Molly Weasley would probably start fussing over him even more, making sure he has enough to eat and a warm place to sleep.
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.