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.
The Avengers' reactions would be diverse. Captain Marvel, if she's part of the group, might be very matter - of - fact about it. Rhodey could be a bit bemused. Steve and Bucky, in the meantime, would be dealing with the embarrassment of being caught in what might be a very personal moment. The situation could also lead to some new conversations within the Avengers about personal boundaries and relationships among the team members.
The Avengers' reactions to finding out about Steve and Bucky in fanfiction would be diverse. Bruce might be more analytical and wonder why fans would write such things. Wanda could be empathetic and see it as a creative expression of the bond between Steve and Bucky. Vision, on the other hand, might try to understand the cultural significance of fanfiction in relation to the two heroes. Steve would likely need some time to get used to the idea that there are fictional stories out there about him and his best friend.
Steve is usually shocked and conflicted. He might question a lot of things and have mixed emotions.
Well, it could go a few ways. Maybe they'd be shocked at some of the wild interpretations of Bucky in the fanfiction. Some might find it funny, like Thor could chuckle at the strange scenarios Bucky is put in. Others, like Steve, might be a bit protective and not like some of the more out - there ideas about his friend.
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.
It might not change much for some. For example, Bruce would probably still see Bucky as the same person he knows. But for others, like Sam, if he reads some fanfiction where Bucky is painted in a bad light, he might be more on guard around Bucky at first, until he realizes it's just fictional nonsense.
Steve would probably be quite honest. He might just come clean and start sharing his experiences as a young man. He'd want the Avengers to understand that he's still the same person at his core.
Bruce would probably be more analytical. He might wonder how Tony's marriage could affect his work and the team. He could also be curious about Tony's relationship dynamics. Meanwhile, Wanda might sense the emotions involved, like Tony's happiness or any underlying stress in the relationship. And Rhodey would likely be supportive, since he's Tony's close friend. He might even help Tony deal with any potential issues that come up with the Avengers' reactions.
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.