In a fanfiction about their forced marriage, it could also explore how they deal with their new family situation. Since they are both from different backgrounds in the demigod world, they might have to face issues related to leadership among the demigods. Percy, being from Camp Half - Blood, and Thalia, who was once a tree protecting the camp, might have to figure out how to lead together, if that's what the situation demands. This could create a lot of tension and also growth in their characters.
Well, one possibility could be that it starts with some external force, like a powerful god or a magical curse, forcing them into the marriage. Percy might initially be resistant as he has his own feelings for Annabeth. Thalia, being a strong - willed character, could be planning to find a way to break the forced union. They might have to go on a quest together to find a solution, during which they gradually understand each other better.
One possible plot twist could be that Percy and Thalia initially resist the arranged marriage. Percy might be in love with someone else, like Annabeth. But as they are forced to spend time together for the sake of the arranged union, they start to discover each other's hidden qualities. Thalia could reveal her vulnerable side to Percy, and Percy could show his loyalty and courage in a new light to Thalia. This could gradually lead to them developing real feelings for each other, despite their initial reluctance.
Percy would probably become more serious. His usual laid - back and joking self might be subdued as he grapples with the situation. He would be forced to think about responsibilities in a new way. Thalia, on the other hand, might become more empathetic. She's used to being on her own and tough, but in a marriage, she'd have to consider Percy's feelings. She could start to open up more and show her softer side.
Well, it could be about a misunderstanding. Maybe Percy accidentally uses his powers in a way that Thalia misinterprets as a threat to her leadership among the demigods. So she lashes out at him, and Percy, not one to back down easily, fights back.
One possible plot could be that Percy and Thalia have been through many adventures together and finally realize their deep feelings for each other. They decide to get married in a ceremony attended by all their demigod friends. There could be some challenges like an old enemy trying to disrupt the wedding, but with the combined strength of their friends, they overcome it and have a beautiful wedding at Camp Half - Blood.
The fanfiction could revolve around the relationship between Percy and Thalia as they work to safeguard Percy's guardian. It could show how their friendship or partnership develops during the course of their adventure. For example, they could start off not getting along so well, but as they face challenges, they learn to trust and rely on each other more.
Perhaps it's a fanfiction focused on their relationships. They might form an unexpected bond in the story. Nico, who has often been a bit of an outcast, could find real friendship and acceptance from Percy and Thalia. They could start out on a simple quest, like finding a lost artifact, and during this journey, they learn more about each other and grow closer as friends.
There are many possible plot ideas. For instance, in a fanfiction, Percy might get injured during a fight, and while Thalia is taking care of him, he realizes the depth of his feelings for her. Or it could be that there's a magical influence that makes Percy fall in love with Thalia, and they have to figure out if it's real love or just magic. Also, the idea of them being from different camps (like Camp Half - Blood and Camp Jupiter) and their love having to overcome the differences between the two camps could make for an interesting plot.
One possible plot could be that Percy and Thalia are tired of the constant battles and politics in their current world. Chaos offers them a new beginning. They join Chaos' forces and are trained in unique ways. Percy might use his water - controlling abilities in new and unexpected ways under Chaos' guidance. Thalia could also enhance her skills with lightning. Together, they go on missions to restore balance in different realms that are in chaos (in a non - traditional sense).
One possible plot could be that after many adventures together, Percy and Thalia realize their deep connection. They might start with a small, secret ceremony among their closest friends from the demigod world. Their friends could plan a big celebration later. Percy's loyalty and Thalia's strength would make them a powerful couple in the fanfiction world.
One possible plot could be that Percy accidentally possesses Thalia due to a magical mishap. He then has to deal with her powers and her relationships while in her body. Maybe he has to keep it a secret from their friends at first.