Sure. There are quite a few. Some focus on Vegeta's pride in Trunks and how he shows his love in his own gruff way. For example, there are stories where Vegeta secretly trains Trunks extra hard because he wants him to be strong. Others might explore how Trunks looks up to Vegeta, and how that admiration is reciprocated in Vegeta's love for his son.
The relationship could develop in a more emotional way. Maybe Trunks gets injured badly in a fight, and Vegeta realizes how much he cares for his son. He then becomes more protective and affectionate towards Trunks. On the other hand, Trunks could also start to understand his father better, seeing that Vegeta's tough love is actually a way of showing his love and concern. This new understanding could lead to a more harmonious and loving relationship between them.
One possible analysis could be that it might explore the complex relationship between Vegeta and Trunks. Maybe in this fanfiction, Vegeta's strict training methods could be seen as 'hurting' Trunks in a sense, like pushing him too hard physically or emotionally. It could also delve into how Trunks copes with that and if it ultimately makes him stronger.
Often, it can be due to a lack of proper nutrition. Maybe the mom has been skipping meals to take care of the family or because she's too busy at work. Stress is also a factor. High stress levels can lead to fainting. In some stories, the mom may have been taking certain medications that had side effects which caused her to pass out, and the son discovers her in this state.
In the fanfiction, Erik could also be in a state of shock at first. He might struggle to accept this new reality. After all, having a son is a huge thing, especially when he had no idea before. He could be hesitant to approach Peter, worried about how Peter will react to the news.
In some fanfictions, Vegeta is initially shocked. He might stand there in silence for a moment, his eyes wide. Then he could feel a strange mix of emotions, like pride and fear. He's proud to be having a child with Bulma but also fears for the safety of his family given his dangerous past and the many enemies he has.
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.
Erik may initially be in disbelief. He could think it's some kind of trick or misunderstanding. He might start investigating, trying to find out if it's really true. He could look into Peter's past, talk to people who knew Peter's mother, etc., to confirm the truth of this revelation.
Well, this is a really tough situation. The son could initially feel a sense of betrayal. His view of his mother would be completely shattered. He might also worry about how this could affect the family's reputation. He would likely need a lot of time to process his feelings and figure out how to deal with this new knowledge.