One idea could be that Percy and Annabeth are new students at a high school filled with mythological secrets. They have to hide their demigod status while also dealing with normal high school problems like exams and bullies. Maybe they join the school's swim team and debate club respectively, which could lead to some interesting interactions.
They could be involved in a high school project that turns out to be related to an ancient prophecy. Percy might use his water - controlling abilities in a science experiment in a really cool and unexpected way, and Annabeth would be there to explain the historical context behind it all.
There's Tyson, Percy's cyclops half - brother. In high school fanfiction, he can be really endearing as the big, strong but gentle guy. He might be on the school football team or something similar. And then there's Rachel Elizabeth Dare. She could be the artsy girl in school who has a bit of a crush on Percy and causes some jealousy with Annabeth, adding some romantic tension to the story.
Often in these fanfictions, the pregnancy is used to add drama. It might lead to conflicts between Percy and Annabeth, like differences in their opinions on how to handle the situation. For example, Percy might be more laid - back while Annabeth wants a more structured plan. It also might show their friends rallying around them or being shocked. And sometimes, it's a chance to see how they adapt to changes in their social status at school due to the pregnancy.
Often, it could be a jealous classmate. Maybe someone who has a crush on Percy and sees Annabeth as a threat, so they try to create problems between them. Another could be a strict teacher who doesn't like Percy's carefree attitude and Annabeth's independent thinking, always trying to give them a hard time.
Well, perhaps Annabeth decides to surprise Percy at his high school by disguising herself as a new student. She enrolls in the school for a day and joins Percy's class. When Percy sees her sitting there, he can't believe his eyes. She then reveals her true identity during lunch break and they have a sweet reunion, sharing stories about their latest demigod adventures.
It's possible that Annabeth surprises Percy at high school by setting up a whole new section in the school library dedicated to Greek mythology. Percy loves Greek mythology, and when he discovers it, he's thrilled. Annabeth reveals that she worked with the school librarian for weeks to make it happen. This not only surprises Percy but also enriches the knowledge of the whole school about their demigod heritage.
Grover would be a great addition. He could be the quirky sidekick in the high school setting, always getting into comical situations while also providing some sage advice to Annabeth and Percy based on his own experiences. For example, he could help Percy figure out how to ask Annabeth to the prom.
Grover could be a great addition. He could be the goofy but loyal friend who always gets caught in the middle of Percy and Annabeth's drama. For example, he might accidentally spill some secrets that cause more trouble between them. Another good character could be Clarisse. She could be the school bully who has a grudging respect for Percy and Annabeth but still tries to cause problems for them now and then.
Well, a great plotline could be Percy and Annabeth trying to start a club in high school related to ancient Greek mythology. But they face opposition from the school administration who think it's too 'out there'. And then there's the whole thing about them having to balance their demigod duties with high school projects and exams. It adds a lot of drama and humor as they struggle to fit in and still be true to themselves.