It could be that Zoe has a special connection with Percy that she doesn't want anyone to interfere with. So she becomes possessive to safeguard that connection.
It could mean that in the fanfiction, Zoe shows a strong sense of ownership over Percy. Maybe she doesn't like others getting too close to him or she always wants to be the one by his side. It might also imply that she is overly protective and territorial when it comes to Percy in the context of that particular fan - created story.
Percy could be a brave and adventurous character, perhaps with some special abilities like being able to control water or having enhanced strength. Zoe might be a smart and resourceful female character, maybe with skills in tracking or archery. They could be from a fictional world full of magic and mythical creatures.
They could interact in a very competitive way too. Maybe they compete in different tasks or challenges within the story. For instance, if there's a race to find a magical item, they both want to be the one to succeed first, but still have a deep underlying sibling bond. Percy might tease Zoe sometimes in a brotherly way, and Zoe would roll her eyes at his antics but secretly be fond of him. Their interactions would be a mix of typical sibling banter and deep emotional support for each other.
Yes, there might be such fanfictions out there. You can try searching on popular fanfiction websites like Archive of Our Own or FanFiction.net. However, the idea of Zoe cheating on Percy might be a bit unorthodox as their relationship in the original context might not typically lead to such a plot.
Well, at first, they could be at odds with each other. Zoe might see Percy as too impulsive, while Percy might think Zoe is too reserved. But as they get to know each other better, they find common ground. For instance, they both care deeply about their friends and their world. This understanding could lead to Percy falling in love with Zoe. He might start to do little things for her, like bringing her a flower he found during their travels or protecting her in battles without her asking.
In fanfiction, the concept of Ares being possessive of Percy can also stem from the idea of forbidden or complex relationships. The contrast between Percy's more heroic and noble nature and Ares' war - like and often brutish ways creates an interesting dynamic. Ares may view Percy as a symbol of what he can't be, and his possessiveness could be a way of trying to corrupt or change Percy to fit his own view of the world.
It could also be due to a sense of ownership. Percy has achieved a lot with the help of the gods, and Athena might feel that she has some claim over him because of the assistance she or other gods associated with her have provided. In the context of the fanfiction, this sense of ownership could translate into possessiveness.
Well, in some fanfictions, Hermes might be possessive of Percy because Percy could possess certain qualities or powers that Hermes wants to control or have an influence over. Maybe Percy has a unique connection to the world of the gods that Hermes sees as valuable.
Well, in some fanfictions, Luke might be possessive of Percy because he sees Percy as a symbol of power or potential. He may want to control Percy to use his abilities for his own goals, like in the original story where Luke has his own dark motives. Also, it could be out of envy. Percy has things that Luke might feel he lacks, so his possessiveness could be a way to try and take what Percy has for himself.