The kid might be shocked at first. He could feel a mix of excitement and disbelief. For example, in many stories, the kid suddenly has to come to terms with a whole new life of luxury and responsibility.
Often, the kid's reaction is complex. At the very moment of finding out, there could be a stunned silence. Then, as he begins to understand what it means, he might get excited about the grandeur and the privileges. However, he may also worry about leaving behind his old life, his friends, and the simple things he used to enjoy. There could be a struggle to adapt to the new rules and etiquettes of the royal world, like having to learn proper courtly behavior and diplomatic language.
Well, initially, the kid may be completely bewildered. He might start to question everything he thought he knew about his family and himself. And then, as the reality sinks in, he could feel a sense of pride, but also a bit of fear about all the new expectations that come with being royalty.
His life changes in many ways. Socially, he'll be part of a different circle. He'll attend grand balls and meet important people. Education - wise, he may receive a more specialized and elite form of education. Also, he'll have to follow strict rules of protocol in his daily life.
He might experience a great deal of confusion at first. He has been living a certain life with a wife, and suddenly realizing his sexual orientation is different can shatter his self - perception. He could also feel guilty, especially towards his spouse, as he has entered into a marriage under false pretenses in a sense.
In many fanfictions, Naruto is initially in a state of shock. He can't believe that Jiraiya, his mentor, is gone. He might go into a period of deep sadness and isolation, withdrawing from others as he tries to process the loss.
In some fanfictions, Naruto is completely devastated. He might go into a state of shock at first, unable to believe the news. Then he could be filled with intense grief and anger, blaming himself for not being there to protect Jiraiya.
He could be shocked at first. Just the sudden realization that the people he thought were his biological parents all his life are not would be a huge blow.
In some fanfictions, Edward might be initially shocked. He could be worried about Bella's health, considering the unique situation of a human - vampire pregnancy. He might also feel a sense of protectiveness towards Bella and the unborn child, and start making plans to ensure their safety.
He might be completely devastated. In many fanfictions, Edward enters a state of deep despair. He could isolate himself from others, feeling like his world has ended without Bella.
He might be shocked. Draco has always seen Harry as an equal rival in some ways, but finding out he is Lord Black means Harry has a whole new level of status. So, shock is a very likely initial reaction.
Draco may initially react with disbelief. But as he realizes it's true, he could have a complex range of emotions. He might be disgusted by the act itself. His Slytherin nature might make him want to be cunning in dealing with the situation, perhaps by finding out more about the incident in a secretive way. He could also have a moment of self - reflection, thinking about how his own actions in the past might have added to Harry's stress or made him more vulnerable. And ultimately, he could be motivated to help Harry heal, whether it's through emotional support or taking more practical steps like helping him report the crime if that's applicable in the fanfiction world.
Sam could be in shock at first. Then he might start to dig deeper into Dean's past to understand the full extent of the abuse. He would likely try to get Dean to open up more about it and offer his support in any way he can. For example, he could be more understanding when Dean has certain triggers related to the abuse.