One plot idea could be that Percy and Annabeth face a new and powerful enemy that forces them to rely on each other more than ever. As they battle this foe, their feelings for each other deepen. Another idea is that they get sent on a quest together to a mysterious place. During this quest, they discover secrets about each other and fall in love in the process. A third plot could involve Percy getting amnesia and Annabeth having to make him fall in love with her all over again.
One idea could be that they meet during a quest. Percy and Annabeth are on a mission to retrieve a powerful artifact. They cross paths in a dark forest, and in the dim light, their eyes meet. There's an immediate connection. They then have to work together to fight off some mythical creatures. During this time, they learn about each other's strengths and weaknesses, all while being smitten with each other from the start. Another plot could be at a demigod gathering. Percy is lost and looking for someone to show him around, and Annabeth offers. Their hands brush as she hands him a map, and that's when the love at first sight moment occurs. Then they could explore the gathering together, getting to know each other better.
One idea could be that a new demigod arrives at Camp Half - Blood. This new demigod is really good - looking and shows a lot of interest in Percy. Annabeth gets jealous seeing them together all the time, like during training sessions or at the campfire. Another plot could be that Annabeth has to work closely with an old acquaintance on a quest, and Percy gets jealous because he feels left out and he's not sure about this acquaintance's intentions towards Annabeth. A third plot could be that in a school setting outside the camp, Percy is getting a lot of attention from mortal girls because of his heroic looks, and Annabeth has to deal with her jealousy while also trying to keep their demigod world a secret.
One great idea could be them going on a new adventure together. Maybe they discover a lost civilization that has a connection to their Greek mythology roots. They could face new monsters and puzzles, relying on their teamwork and the unique skills they've developed over the years.
I also like 'Love's Awakening'. This fanfic takes a different approach. It starts with Annabeth being in denial about her feelings for Percy. But as the story progresses, through various adventures and close calls, she finally succumbs to her love for him. It's a great read for any fan of the ship.
One idea could be a story where Percy and Annabeth have to mentor a new group of demigods. They teach the newbies about their powers, the history of the demigod world, and how to survive in the dangerous situations they'll face. It would focus on their leadership skills and the growth of the new characters under their guidance.
A plot could be set in a post - apocalyptic world where Percy and Annabeth are on opposite sides at first due to some misunderstanding. As the story progresses, they realize they need to work together to face the real threats in this dark new world.
One plot idea could be that Percy is so caught up in his own heroic deeds and adventures that he completely misses all of Annabeth's subtle hints of her feelings for him. Meanwhile, Annabeth tries different ways to get his attention, like helping him with his studies in a very flirtatious manner, but Percy just thinks she's being a good friend. Another could be Percy getting into a situation where he has to protect Annabeth without realizing his true feelings for her are deeper than friendship, and throughout the fanfic, his obliviousness slowly starts to fade as he gets closer to her in the face of danger.
In a fanfiction about their bickering, a plot could be centered around a magical item. Let's say they find a new weapon or artifact. Percy wants to use it right away to test its power, but Annabeth is worried about the potential consequences and unknown abilities of the item. This leads to their bickering. Additionally, they could bicker about their relationships with other characters. For instance, Percy is friendly with a new demigod who Annabeth is a bit suspicious of, and this causes tension and arguments between them.
One idea could be that Percy and Annabeth are on a pirate ship, and they discover a hidden treasure map. They have to battle other pirates and sea monsters to reach the treasure. Another could be that they are pirates who are trying to free a group of captured demigods. A third idea is that they are pirates on a quest to find a magical artifact that can control the seas.
One idea could be a post - quest moment where Percy and Annabeth are sitting by the Camp Half - Blood lake at sunset. They start sharing their deepest fears and hopes, and as they get closer emotionally, they hold hands and share a gentle kiss. It's a very tender and intimate moment that shows their deep connection.