For demigods, it could either reinforce their existing views or introduce new perspectives. If a fanfiction delves deeper into a certain aspect of their world like the powers of a god, they might gain a new understanding. Mortals would have a more comprehensive view of the PJO world. They would learn about different characters and their backstories that might not be fully explored in the original books.
One reason could be that Percy has shown great courage and strength, which Reyna respects. She might see in him the potential to be a great ally or even a leader. So, she becomes protective to ensure his safety and to keep him on their side.
In a fanfiction, their friendship could start with a simple act of kindness. Percy could save Reyna from a minor accident. Reyna, being grateful, starts to see Percy in a different light. They begin to have small conversations, getting to know each other's likes and dislikes. Over time, they realize they have more in common than they thought. They support each other in their personal goals, like Percy helping Reyna with a project for the Roman camp and Reyna helping Percy with his relationships at Camp Half - Blood. This mutual support cements their friendship.
It can be considered common. There are a large number of PJO fans out there, and fanfiction is a popular medium in fan communities. Since the official books have a set storyline, fanfiction offers a chance to expand on it, so many 'mortals' (fans) are attracted to it.
One great 'athena pjo fanfic' is 'Athena's Wisdom'. It really delves into Athena's character in the Percy Jackson universe. The author does a wonderful job of showing her wisdom and how she interacts with the other characters. It has some really interesting plot twists that keep you hooked from start to finish.
I'm not entirely sure specifically as it could refer to different things, but generally a 'graphic novel' is a book in comic format. If 'pjo' stands for 'Percy Jackson and the Olympians', then it would be about the adventures of Percy Jackson in a graphic novel format. It might include his encounters with Greek gods, monsters, and his quests.
Another scenario might be when Percy is in a dangerous situation like facing a powerful monster. Reyna would not hesitate to put herself in harm's way to protect him. She might shield him with her own body or use her strategic mind to come up with a plan to keep Percy safe.
Jason is another good choice. He has a history with both Percy and Reyna. His leadership skills and his connection to the Roman side of the demigod world could bring in new plotlines. For example, he could help Percy and Reyna understand some of the more complex Roman demigod politics that they need to navigate.
Their relationship could develop slowly. At first, they might just be acquaintances who respect each other's abilities. Then, as they spend more time together, they start to have small conversations that gradually become deeper. Eventually, they realize they have feelings for each other.
Well, one reason people read PJO fanfic is that they want more of the Percy Jackson world. The official books can't cover every single idea or relationship. Fanfiction fills those gaps. It might also be that some readers enjoy the different writing styles of fanfic authors. They can find unique interpretations of the characters and settings, which adds to the allure of the PJO universe.