One common theme is power discovery. Since Percy is Poseidon's son, many fanfics explore Percy finding out new powers he inherits from his father. Another theme is family bonds. They dig deeper into the father - son relationship between Percy and Poseidon which was not fully explored in the original series.
In 'Percy x Poseidon fanfic', it's exciting because we can see the two characters interact in ways not shown in the original books. For instance, we can explore how Poseidon might train Percy or how Percy might influence Poseidon's view of the mortal world. It offers a new perspective on the existing mythology and characters, and the fanfic writers can let their creativity run wild with this relationship.
Annabeth is often a popular character. She could be in a story where she has to help Percy deal with his relationship with Poseidon. Maybe she gives him advice on how to handle Poseidon's overbearing nature or how to make the best use of the gifts Poseidon gives him.
One interesting plotline could be a power struggle between Triton and Percy, with Poseidon caught in the middle. Maybe Triton feels threatened by Percy's newfound status as a demigod son of Poseidon and tries to undermine him.
One idea could be Percy exploring an underwater realm that only Poseidon can access. He discovers ancient secrets about his father's past and the origin of his powers. Another could be a story where Percy has to team up with Poseidon to fight a new and powerful sea - born enemy. Maybe there's a prophecy that only their combined strength can fulfill.
One great 'Percy x Poseidon fanfic' is 'The Sea's Bond'. It delves into the unique relationship between Percy and Poseidon in a world where Percy discovers new powers related to his father's domain. Another interesting one could be 'Poseidon's Heir'. It focuses on how Percy's connection to Poseidon affects his role in the demigod world and his relationships with other characters.
In fanfictions, Poseidon often interacts with baby Percy in a very gentle and protective way. He might use his powers to create a safe environment for Percy, like a special underwater grotto where Percy can be hidden from danger. Sometimes, he sends sea creatures to watch over Percy, like dolphins or friendly sea nymphs.
Triton is often an interesting character in these fanfictions. He has his own insecurities and ambitions. Some fanfictions write him as a jealous character, feeling overshadowed by Percy. But in other well - written ones, he is shown as a complex figure who has his own reasons for his actions and eventually comes to terms with Percy. His knowledge of the sea and his relationship with Poseidon also offer a lot of potential for character development.
Annabeth would definitely be involved. As Percy's girlfriend, she is often by his side during his adventures. She could be the one who witnesses Poseidon's pride towards Percy and helps Percy understand the significance of it. Grover, Percy's best friend, is also likely to be there. He might provide some comical relief during the serious moments when Poseidon is showing his pride. Also, other demigods from Camp Half - Blood like Jason, Piper, and Leo could be involved. They could be in awe of Percy's new - found status with Poseidon and might interact with him differently because of it.
There's a fanfic called 'Under the Sea's Embrace: Percy and Poseidon'. In this fanfic, the author focuses on the emotional aspect of their relationship. Percy discovers new powers related to his father Poseidon and they go on a journey together to understand these powers better. It has some really interesting character development for both Percy and Poseidon.