One idea could be Percy struggling with the duality of his parents' natures. Ares' aggression and Aphrodite's love and beauty aspects could be at odds within him. For example, he might be in a situation where his natural inclination towards love and peace from Aphrodite clashes with the need for battle and aggression from Ares during a war between the camps. Another plot could involve Percy having unique powers due to his dual heritage. Maybe he can use love as a weapon in a way, like making enemies fall in love with each other and thus incapacitating them, which is a strange power coming from the combination of his parents.
One possible plot could be that Ares and Aphrodite's secret relationship is somehow discovered by Percy and his friends. Percy then has to decide whether to expose them or use this knowledge to his advantage in the ongoing power struggles among the gods. Maybe Aphrodite tries to charm Percy into keeping the secret, while Ares threatens him. This would create a lot of tension and moral dilemmas for Percy.
Canon Percy is mainly influenced by Poseidon, which gives him a certain set of traits like being loyal and having a connection to the sea. But if Percy was the son of Ares and Aphrodite, his personality would be a wild mix. He'd likely be more aggressive like Ares, quick to anger in some situations. However, Aphrodite's influence would also make him more charming and aware of social dynamics. He might be more concerned with appearances and how others perceive him compared to canon Percy.
In fanfiction, the Son of Aphrodite could also have an interesting love life. Since Aphrodite is the goddess of love, her son might have a complex relationship with love. He could be a hopeless romantic, constantly falling in and out of love. Or he might be cynical about love, having seen the chaos it can cause, especially among the demigods.
It could be depicted as a tumultuous one. Ares is all about war and aggression, while Aphrodite is love and beauty. They might constantly be at odds, yet also drawn to each other. In a Percy Jackson fanfiction, their relationship could be shown through their bickering and secret meetings. For example, Percy might stumble upon them arguing in a hidden grove about whether love or war is more powerful.
If Percy was the son of Aphrodite, it would make the story much more about relationships and less about the traditional battles. His storylines could involve using his charm to defuse situations rather than his sword. He might be more focused on bringing people together or causing romantic chaos. Also, his connection to the other gods would change. Gods who have a different view of Aphrodite might treat Percy differently. He could be a target for jealousy from some gods' children who feel he has an unfair advantage in the love department.
One common theme is identity. Percy has to figure out who he is with such an unusual parentage. Another is power. With Ares and Artemis as his parents, he might have unique powers that are explored in the stories. Also, there's often the theme of acceptance among his peers in the demigod world.
There is definitely some out there. A lot of fanfiction writers like to explore unique pairings and family relationships in the Percy Jackson universe. Some might be more action - packed, while others could be more about the emotional journey of Percy as the son of Ares and Artemis. You might have to dig a bit through the search results to find the really great ones though.
In this fanfiction scenario, Percy's relationship with other characters would change. His friends might be a bit more wary of his new - found charm powers. And he could have a whole new set of enemies among Aphrodite's rivals. Also, his love life would be even more complicated. With Aphrodite as his mother, there would be all kinds of expectations and potential love - related plots.
One interesting character to include would be a half - blood from the Ares cabin who has the power to control fire, named Ember. She could be both a friend and a rival to Percy. There could also be a centaur who is a bit of an outcast from the main centaur group and teams up with Percy. His unique perspective and skills could be very useful. And then there's Rachel Elizabeth Dare. Her ability to see through the Mist and her non - half - blood status could bring a fresh dynamic to the story, especially when it comes to Percy's new situation as the 'Son of Ares'.