One plot could be about Percy and Annabeth going on a secret quest that Chiron doesn't know about. They have to rely on their wits and each other to solve the mystery of an ancient prophecy that seems to be tied to their relationship. It would be full of action and their typical banter.
A great plot would be Percy and Annabeth getting stuck in a time - loop in Camp Half - Blood. They keep reliving the same day over and over again, but each time they learn something new about their friends and themselves. They also have to figure out how to break the loop together, which brings them closer.
One plot could be that they are competing in a friendly competition at Camp Half - Blood. It's like a series of challenges that test their skills, and along the way, they tease each other and have a great time. Their relationship is shown as a healthy, competitive one that is also full of respect.
There are quite a few Percy Annabeth fanfictions out there. Some might have 'lemon' elements which are often romantic or more intense relationship - focused parts. You can check out fanfiction websites like Archive of Our Own. Just search for 'Percy Annabeth' and then look through the results to find ones that might fit what you're looking for.
The 'soulmate - like connection' trope is also great. In these fanfictions, they have an unspoken bond that helps them understand each other on a deeper level. It could be shown through how they anticipate each other's actions during battles or how they know just what to say to comfort each other, all in a very platonic yet deep way.
A theme of them mentoring younger demigods is also great. They could pass on their knowledge and experiences, while also dealing with the challenges of being role models. This shows their growth and maturity, and how they give back to their community in the demigod world.
One popular Percy and Annabeth lemon fanfic could be 'A Summer's Embrace'. It delves into their relationship in a more romantic and intense way. However, it's important to note that fanfics can vary greatly in quality and adherence to the original characters' personalities.
There could be a fanfiction where they are on a diplomatic mission to another camp of demigods. They have to negotiate and build alliances. Percy's charm, Annabeth's intelligence and Thalia's presence help them in different ways during the negotiations. They encounter various challenges like cultural differences and mistrust from the other camp, but through their combined efforts, they try to achieve peace and cooperation.
One plot could be Percy planning a grand adventure just for Annabeth. He could take her to a hidden place in the demigod world, like a secret library filled with ancient knowledge she loves. Along the way, he shows his thoughtfulness and understanding of her interests, which could be seen as a form of'seduction'. Another plot might be Percy using his powers to create beautiful water sculptures dedicated to Annabeth during a special event at Camp Half - Blood. This would show his creativity and how much he values her.
One possible plot could be that Annabeth is under some kind of mind control. Maybe a powerful enemy has taken over her mind, forcing her to turn against Percy. Another could be a misunderstanding. For example, she might think Percy has betrayed her or their friends in some way, leading to a tragic confrontation.
One interesting plot could be a quest where Percy, Rachel, and Annabeth have to work together to retrieve a powerful artifact. They might face various monsters and challenges along the way, and there could be some tension between Annabeth and Rachel as they both have feelings for Percy.
One plot could be Percy seeing Annabeth spending a lot of time with another demigod on a quest. He gets jealous and starts acting strange around her. This could lead to some misunderstandings between them until they finally talk it out.