Perhaps they meet in a place that is not part of the normal Percy Jackson world, like a strange dimension. There, they have to figure out how to get back while also dealing with their growing feelings for each other. It could also be interesting if there was some sort of prophecy involving both of them, and they have to fulfill it together.
One idea could be that Percy discovers a hidden side of Goddess Lemon that no one else knows. Maybe she has a special power that only Percy can understand or help her control. Another could be that they go on a quest together, facing challenges that test their relationship and force them to rely on each other.
A possible plot for this fanfiction could be that Hera, in her lemon - inspired avatar, decides to test Percy's loyalty. She creates a series of illusions and trials for him. Percy, thinking it's just another day in his crazy demigod life, has to navigate through these challenges. In the process, he discovers some secrets about Hera's past that she has been hiding. This new - found knowledge makes him see Hera in a different light, and they form a sort of alliance. As they continue to interact, their relationship evolves from one of suspicion to a more friendly and collaborative one.
One idea could be that Percy, with his water powers, and Elsa, with her ice powers, team up in a magical realm. They could face a common enemy that threatens both their worlds. And as they work together, they start to understand each other's powers more deeply, leading to a strong bond.
Well, a plot could revolve around Sally getting into some kind of trouble in the mortal world, and Percy uses his demigod powers to save her in a very creative way. This could lead to a lot of emotional moments between them as they realize how much they mean to each other. Or it could be that Percy brings Sally to Camp Half - Blood for a special event, and they have all sorts of adventures there together, meeting new characters and facing challenges as a duo.
One idea could be Percy having to team up with the Joi Goddess to save Camp Half - Blood from a new, powerful enemy. Maybe this enemy has the ability to manipulate time and space, and only with the combined powers of Percy and the Joi Goddess can they figure out a way to stop it.
A plot could be that Sally Jackson plants a lemon tree in her garden that turns out to be a gift from a minor goddess. The lemons from this tree have the power to give those who eat them the ability to see through illusions for a short time. Percy uses these lemons to his advantage when he is on a mission to retrieve a powerful artifact that is guarded by a monster that uses illusions to protect it.
Well, perhaps Aphrodite decides to give Percy a love lesson. Since he has had some rocky relationships. She could take him on a journey through different love stories in Greek mythology, showing him how to handle different situations. And as for the lemon part, it could be a situation where Aphrodite uses her charm to make Percy feel a bit flustered and his face turns red like a lemon. It would be a cute and funny scenario.
Well, perhaps a plot where Percy discovers that his father has a secret lemon - related past. Maybe Poseidon once made a deal with a lemon - loving deity and now there are consequences. For example, every time Poseidon gets angry, lemons start falling from the sky around Percy. This could lead to all sorts of humorous and adventurous situations as Percy tries to figure out how to break the curse.
One idea could be the hellhound having a secret bond with Percy. Maybe it starts out as a dangerous encounter but as Percy tries to understand the hellhound's motives, they form an unexpected alliance. This could lead to them facing off against common enemies in the Percy Jackson universe.
One idea could be Calypso using her powers to help Percy in a new and unexpected way during a quest. Maybe she creates a special lemon - scented shield that can protect against a certain type of monster.
One idea could be a crossover adventure where Percy Jackson teams up with the Wolf Lemon characters to face a new and powerful enemy. Maybe a threat that combines the magic from the Percy Jackson world and the unique abilities of the Wolf Lemon world.