Well, they might have some deep conversations. Maybe they'll talk about their past adventures, like the time they faced Medusa or the Titans. They could also plan for their next quest together while sitting in Percy's living room.
One possibility is that they'll get into some sort of domestic chaos. Since they are used to the dangerous and unpredictable world of demigods, simple things in a house like cooking or cleaning could turn into a comical mess. For example, Annabeth might try to cook something using her knowledge from the past, but it could go horribly wrong because Percy's kitchen has different utensils than she's used to.
Perhaps there will be a visit from one of their demigod friends while Annabeth is there. This could lead to a mini - reunion and they could exchange news about what's going on in the demigod world. They might also start strategizing about how to deal with any new threats that are emerging.
In this kind of fanfiction, they might have an adventure together. Maybe they'll face a new monster that they haven't encountered before. For example, a mythical creature from a less - known part of Greek mythology.
One possibility is that it could lead to Percy's downfall. If Annabeth, who has been his close ally and friend, betrays him, it might shatter his trust not only in her but also in others. He could become more isolated and vulnerable, making it easier for his enemies to target him.
Well, it could be that Annabeth and Percy meet in a different setting than in the original stories. For example, they could meet in a modern city but still have to deal with their demigod issues. They might discover new powers or abilities within themselves as they interact. And there could be some romantic moments as their relationship often has that element in fanfictions.
One possibility is that Percy clashes with the school's jocks or popular kids. Since he's an outsider, they might pick on him at first. But then Percy shows them what he's made of, not with brute strength necessarily but with his quick thinking and his ability to outwit them. He could also get involved in a school competition, using his unique skills to help his team win.
Perhaps in this fanfiction, it could be a sign of their growing closeness. Annabeth sleeping in Percy's cabin might lead to some cute and awkward moments in the morning, like when Percy wakes up first and doesn't know how to react. It could also be a situation where they need to keep it a secret from the other campers to avoid any misunderstandings.
Well, in the House of Hades, they could be put in a situation where they have to make a huge sacrifice for each other. For example, if there was a curse that could only be broken if one of them took on all the pain and suffering of the other. Percy would probably volunteer immediately for Annabeth, and vice versa. This act of selfless love would strengthen their relationship. Also, they could have some light - hearted moments in the middle of all the darkness. Like finding a small, safe haven in the House of Hades where they can just be themselves and have a picnic or something, which would add a new dimension to their relationship.
Well, perhaps in the fanfiction, they initially feel a bit awkward sharing the bed. But as the night progresses, they find comfort in each other's presence. Percy might crack a joke or two to ease the tension, and Annabeth would roll her eyes at him in that affectionate way she does. They could end up falling asleep while holding hands, symbolizing their strong bond.
If Percy and Annabeth were to go to highschool in fanfiction, it would be a whole new world for them. They are used to the dangerous and magical world of demigods. At highschool, Percy might get into trouble for his impulsive nature, but his loyalty to his friends would also make him popular. Annabeth would be the girl who always has her nose in a book, yet she'd also be the one everyone turns to for advice. Their relationship would also develop in new ways, perhaps facing challenges from normal high school romances or jealous classmates.
In fanfiction, when Percy and Annabeth meet, they might have a super sweet reunion. Maybe they'll share a warm hug and exchange some inside jokes that only they understand. It could be in a new and exciting setting, like on a mysterious island they've never been to before.