Another plot could be set in an alternate universe where Piper and Jason have different roles. For example, Piper could be a powerful sorceress and Jason a knight, and they have to team up to defeat an evil dragon that is terrorizing the kingdom. This would allow for a fresh take on their characters and relationship.
One idea could be a quest where Percy, Jason and Piper have to team up to find a lost artifact that has the power to control the elements. They face various mythical creatures along the way and have to use their combined powers to overcome obstacles.
One possible plot could be that they meet during a quest. Maybe they are all called to a particular place by a prophecy. Percy, being the experienced demigod, could initially be a bit skeptical of Jason, Piper, and Leo as they come from a different camp. But as they start working together, they realize they have a lot in common. They might face a powerful monster together, and in the process, they learn about each other's strengths and weaknesses.
In this type of fanfiction, it might explore how Piper and Jason's relationship changes with the addition of a baby. They might face new challenges together, like sleepless nights and diaper - changing disasters. Their friends from the demigod world could also be involved, perhaps coming over to help or offer advice on raising a half - god baby.
One possible storyline could be that they face challenges in their relationship while expecting. Maybe they have to deal with outside forces trying to harm them or the unborn child. For example, some villains from their world might see the baby as a threat or a tool for their evil plans.
One idea could be that they go on a quest together and discover a new type of magic that only they can control because of their unique powers. This new magic could be the key to saving their world from a great threat.
A great plot could be that Percy and Piper are the only ones who can see a strange new threat that is slowly creeping into their world. They initially don't believe each other but then realize that they are right. So they start investigating together. Along the way, they learn more about their shared heritage that has been hidden from them, and this new knowledge helps them face the threat.
One idea could be them starting a new life together outside of prison. They might face challenges like finding jobs and dealing with the judgment of society. For example, Piper could use her business skills to start a small venture while Alex supports her morally. Another plot could be their journey in adopting a child and the unique family they create.
One idea could be that Percy and Piper have to team up for a special quest that involves both water and charm powers. Maybe they need to retrieve a magical artifact that is hidden in a place where water and wind elements combine, like a floating island in the middle of a tempestuous sea. They would have to use Percy's ability to control water and Piper's power to charm the creatures guarding the island.
Perhaps a plot where Piper tries to start her own newspaper in a different settlement. She faces many challenges like getting paper, finding trustworthy reporters, and dealing with the local politics. Along the way, she might uncover some secrets about the settlement that the local leaders don't want to be made public. This could lead to a conflict between her journalistic integrity and the safety of the settlement.
A plot could involve Piper having premonitions about the baby's future through her charmspeak ability. She might see that the baby will have a great destiny in the demigod world. This could lead to her taking special precautions to ensure the baby's safety from a young age. Additionally, the fanfiction could show how the other campers help out. Some might offer to babysit in the future, while others could help build a nursery in an enchanted part of the camp.