Family discovery is a common theme. As Peter finds out he's Bruce's son, he has to come to terms with a whole new family history and identity. Another theme is mentorship, with Bruce teaching Peter valuable skills.
One of the main themes is the struggle between normal life and superhero duties. Just like in their individual stories, Peter and Bruce both have to balance their secret identities. But now, as father and son, they also have to support each other in this. For example, Peter might be having trouble in school because of his superhero activities, and Bruce, having been through similar situations, can offer advice. Also, the theme of legacy is important. Peter is now part of Bruce's legacy, and he has to decide how to carry it forward in his own way.
One common theme is mentorship. Bruce could be a mentor to Peter, guiding him with his scientific knowledge. For example, in some fics, Bruce helps Peter with his web - shooter technology.
One common theme is identity. Peter has to figure out who he is as Thor's son. Another theme is power. He has to learn to control and use the powers he inherits. Also, acceptance is a big theme. He needs to be accepted by the other characters in the story.
One interesting 'Peter son of Bruce fanfiction' could be where Peter discovers he is Bruce's son through a series of mysterious events. Maybe he finds an old letter or some hidden family heirloom that leads him to this truth. Then, he has to deal with the shock of this new identity while also trying to balance his life as a superhero or a normal teen.
One common theme is mentorship. Tony often takes on the role of teaching Peter about being a superhero, like how to use his powers effectively and make smart decisions in dangerous situations.
The theme of sacrifice is also present. Tony might sacrifice his own well - being or resources for Peter's sake. And there's the theme of inheritance, like Peter inheriting Tony's technology or his sense of justice.
Family is also a big theme. Since Tony takes on a fatherly role, the stories explore the idea of family, like how they celebrate holidays together or support each other during tough times. For instance, when Peter is bullied at school, Tony is there to comfort and encourage him. Another aspect is the passing on of values. Tony imparts his values of justice, responsibility and innovation to Peter, which is a central part of many of these fanfictions.
One common theme is identity crisis. Peter has to come to terms with being related to Venom, which is quite different from his normal self - image as just Spider - Man.
In 'Peter Parker son of Arachne fanfiction', a frequently seen theme is the clash between the mortal and the mythological worlds. Since Peter is now connected to the myth of Arachne, he has to navigate how these two worlds interact. There's also the theme of acceptance. He has to accept his new identity and how others will accept him too. And of course, the theme of responsibility. With new powers or a new identity comes new responsibilities, just like in the original Spider - Man concept.
Well, family relationships are big. You'll see a lot about the mother - son bond between Pepper and Peter. There can be themes of love and support within the family unit. Another theme could be Peter's struggle to balance his normal life with being a hero, but with Pepper as his mother, it adds a different dimension. For example, Pepper might have different ideas about his hero activities compared to Aunt May in the original story. And sometimes there's a theme of discovery, like Peter discovering more about his family history through Pepper and Stark's connection.
One common theme is redemption. Yondu, who had a rough past, often is shown as seeking redemption through his relationship with Peter. For example, in many fanfictions, he tries to make up for his mistakes by protecting Peter at all costs.