Well, it could develop differently if they met under different circumstances. For example, if they met when they were both in a really vulnerable state. Maybe Percy had just lost his memory and Jason was the one who found him. Jason would have to help Percy figure out who he was, and in the process, a strong bond of trust would form between them much faster than in the original story.
One way to find great authors of Jason and Percy fanfiction is to ask in fan communities. Some fans might recommend an author who has a really creative spin on the relationship between the two. Maybe there's an author who writes a lot about their backstories, or one who creates alternate universes where Jason and Percy have different roles or abilities, which can be really exciting to read.
They often start with the established personalities from the original series. For Percy, his loyalty and his sense of humor are key traits that writers expand on. They might put him in situations where his loyalty is tested in new ways, like having to choose between Annabeth and another friend in a life - or - death situation. For Annabeth, her intelligence is a big part of her character. Writers could have her solve complex puzzles or come up with strategies to defeat new enemies.
One interesting fanfiction could be about Jason and Percy teaming up for a super - difficult quest. They might use their unique powers in tandem, like Percy's water - related abilities and Jason's control over the wind. It could involve them facing a new, powerful monster that neither has encountered before.
Percy would probably become more arrogant at first. But as he faces challenges related to his new identity, he'd learn humility. His loyalty to his friends might be tested as Zeus could demand things that conflict with his friends' interests. He'd also have to deal with the expectations of being the son of the king of the gods, which would shape his character in ways different from when he was just Poseidon's son.
Percy would likely be more ruthless. Gaea's influence might make him less hesitant to use force or manipulation to get what he wants. For instance, he might not be as concerned about the well - being of mortals as he was in the original story.
Percy would likely become more regal and proud. Since Hera is associated with royalty, he might develop a more refined and authoritative personality. He could also become more calculating, as Hera is known for her scheming. For example, he might think more about long - term plans rather than just reacting impulsively like he used to.
Percy's self - identity would be completely shaken. He's always known himself as Poseidon's son, so being a son of Ares would force him to re - evaluate who he is. He might struggle with feelings of anger and a desire for power that he didn't have before. This could lead to a darker path for him at first, but through various experiences, he could learn to control these new aspects of himself and become a more complex and interesting character.
One idea could be Jason and Percy having to team up for a special quest that no one else can handle. Maybe they have to retrieve a powerful artifact hidden deep in a dangerous realm. They start off not getting along well because of their different leadership styles, but as the quest progresses, they learn to respect each other and combine their powers in unique ways to overcome obstacles.
Percy would likely be more in tune with the concept of home and family. Since Hestia represents the hearth, Percy might be more nurturing and protective. He could develop a stronger sense of responsibility for the well - being of his friends as if they were his family.
Percy would likely be more brooding. Since Iapetus was often seen as a rather serious figure in mythology, Percy might inherit some of that solemnity. He could be more withdrawn, thinking deeply about his new identity.