Identity is also a common theme. Both characters have complex identities. Peter has the ability to absorb powers which can make his identity a bit fluid as he takes on different abilities. Sylar's identity is often tied to his search for more powers and his struggle with his own nature. Fanfictions might explore how their identities are shaped by their powers and their relationship with each other. Additionally, the theme of sacrifice could be present. Maybe Peter has to sacrifice something to stop Sylar, or Sylar might have to sacrifice his old ways to become a better person.
Some fanfictions also explore the idea of redemption for Sylar. Peter could play a role in this. He might be the one to show Sylar a different path. Their relationship then becomes about Sylar's journey towards redemption with Peter as a sort of guide or at least an influence. It's interesting how fanfiction can take these two characters and create so many different interpretations of their relationship.
Another common theme is the exploration of their powers. Writers often create scenarios where their powers combine or conflict in unexpected ways. They might have to use their powers together to defeat a powerful villain or they could be in a situation where their powers are at odds with each other, like in a power - stealing scenario.
One common theme is brotherhood. Their relationship as brothers is often explored deeply, whether it's about loyalty, forgiveness, or protecting each other. For example, in many stories, they will put their lives on the line for one another.
One common theme is power exploration. Since both Peter and Claire have unique powers in the Heroes universe, fanfictions often explore how they can use, control, or combine their powers. Another theme is family. Given their complex family relationships in the original show, fanfictions may expand on how their family ties affect their actions and decisions.
In fanfiction, they often start as adversaries. Sylar being the power - hungry villain and Peter as the hero. But then their interactions can change. They might have intense power battles where they test each other's limits.
There's a fanfiction called 'Sylar's Redemption through Peter'. In this story, Peter becomes the catalyst for Sylar to change his ways. It shows a journey of Sylar struggling with his dark side and Peter guiding him towards the light. It's a very character - driven piece that explores their complex relationship in depth.
Some fandom - specific forums might also have Sylar and Peter fanfiction shared by the members. You could try searching for Heroes (the show they are from) related forums and see if there are any hidden gems there.
Some fanfictions might focus on a time - travel scenario. For example, Peter and Sylar are sent back in time and have to deal with their past selves. This could lead to interesting character developments as they see how they used to be and how they can change things for the better.
Identity is also a big theme. Peter is a regular guy with superpowers in a modern - day city, while the Heroes of Olympus are demigods with a whole different set of responsibilities and backgrounds. The fanfictions often look at how they navigate their identities while being part of this new combined group. It can involve things like Peter dealing with the idea of being among literal gods and goddesses, and the demigods adjusting to a more 'human' superhero like Peter.
One great piece of Peter Petrelli and Sylar fanfiction is 'The Unlikely Alliance'. It delves into a scenario where they are forced to work together to face a common enemy. It's really interesting as it explores their complex relationship and how their powers interact in unique ways.