He often gets hurt in battles. For instance, being slashed by a monster's claws or stabbed by a magical weapon. Another common way is through magic spells cast by enemy sorcerers or demigods, which can cause internal injuries or weaken his powers.
In the fanfic, it could be that Percy gets Triton as a gift from Poseidon. Triton could be initially reluctant to be with Percy, seeing him as an upstart half - blood. But as they spend time together, they start to understand each other better. Triton might help Percy improve his control over water, especially in more complex and powerful ways. They could go on quests together, like finding a lost ancient sea artifact that has the power to either save or destroy the world of the sea gods.
In 'When Percy Falls', Percy is hurt in a really unexpected accident. He falls from a great height while on a quest. This fanfic details his struggle to survive and how his friends in Camp Half - Blood are desperate to find a way to heal him. It has a lot of suspense and shows Percy's vulnerability really well.
In many Percy Jackson fanfictions where he gets hurt, it often leads to his friends rallying around him. For example, Annabeth might use her wisdom to find a way to heal him quickly. His demigod powers could also play a role in his recovery, like his connection to water might help soothe his wounds if they're burns or something related to fire. It's a common trope to show his vulnerability and the strength of the bonds he has with others in these situations.
Perhaps it's a gift from his father, Poseidon. Since Poseidon has control over the sea and all things related to water, he might have some connection to a power that gives Percy wings, like as a way to help Percy reach new heights both literally and metaphorically.
There shouldn't be any legitimate fanfiction with such a plot. The Percy Jackson series has a certain set of rules and moral and ethical boundaries within its fictional universe. The idea of Percy getting Hera pregnant is not only out of character but also violates the general tone and values of the series.
It's a bit of a gray area. On one hand, fanfic is about creativity and exploring different ideas. But on the other hand, this goes against the established character relationships in the Percy Jackson series. So while some might find it an interesting and different take, others may be offended or think it's inappropriate.
In such fanfictions, Percy's character is often explored through his resilience. For example, if he's physically abused, we see how he still tries to fight back or find a way to escape, which shows his determination. His loyalty also comes into play as he might not want to burden his friends with what he's going through.
Another theme is isolation. Sometimes, when Percy is hurt, he may isolate himself from his friends, thinking he's a burden or that he needs to deal with his pain alone. This theme often leads to his friends having to break through his barriers and show him that he's not alone, which is a really heartwarming aspect of many 'Percy Jackson Hurt Fanfiction' stories.