One common plot idea is a quest that both Piper and Percy go on together. Maybe they have to retrieve a powerful artifact that has been lost and is threatening to disrupt the balance in the world of the series. Another idea could be a love triangle situation where Piper, Percy, and another character are involved in a complex web of emotions.
A very interesting plot idea is when Piper and Percy are transported to an alternate universe. In this new universe, their roles are completely different, and they have to figure out how to get back to their own world. It could involve them making new alliances, facing different versions of their friends and enemies, and discovering new aspects of their own personalities. Another plot could be that they are forced to compete against each other in a series of challenges, but as the story progresses, they realize that they need to work together to overcome a greater threat that the challenges are masking.
One interesting plot could be Piper using her charm - speak to help Percy in a really tough battle against some new and powerful monsters. Maybe she has to charm - speak a whole army of them to make them fight each other instead of Percy.
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.
One idea could be that Piper uses her charm - speaking abilities to communicate with some of the magical creatures in the Harry Potter universe, like the Hippogriffs. It would be a unique interaction as she tries to understand their language and culture in the wizarding world.
One great Percy Jackson and Piper McLean fanfic is 'The Adventures Beyond Camp Half - Blood'. It shows their unique friendship and how they team up to face new threats outside the camp. It has a lot of action scenes and interesting character interactions.
One great fanfic could be 'The Adventures of Percy and Piper'. It often has them team up to face new and exciting challenges in the world of Greek mythology. Another one might be 'Percy, Piper and the Lost Artifact' which has an interesting plot about finding a powerful and lost item.
One common plotline is them going on a secret mission. For example, in some fanfics, they are sent to retrieve a powerful magical item that could change the fate of the demigod world. This usually involves them facing various monsters and challenges along the way.
A more character - driven idea could be that Percy Piper is feeling down and he finds comfort in baking lemon - flavored treats. Through this process, he learns more about himself and his relationships with others.
Friendship is a very common theme. Since Percy and Piper are both demigods, their friendship is often explored as they face various challenges together.
One interesting fanfiction could be where Percy, Piper and some other characters go on a quest that involves a lemon - themed magical item. Maybe it has the power to cleanse or purify things in a really strange way, and they have to figure out how to use it without getting zapped by its power.
There could be a lemon fanfiction where Piper uses her charm - speak powers in a unique way. For example, she accidentally uses it on Percy during a chaotic moment in a battle, and instead of it causing a problem, it makes them both realize their true feelings for each other. This could then lead to a series of romantic and steamy encounters as they explore their new relationship.