There's a fanfiction titled 'My Percy Crush'. In it, the mortal's crush is presented in a very relatable way. The mortal is just an ordinary person going about their life when Percy enters it. The fanfiction focuses on how the mortal tries to fit into Percy's world while dealing with their strong feelings. Also, 'The Mortal and Percy' is a good one. It shows how the mortal's feelings develop as they learn more about Percy's heroic deeds and his complex personality.
Often, the mortal's feelings are shown as a mix of awe and attraction. Since Percy is a hero in his world, the mortal is in awe of his abilities and his adventures. For example, they might be amazed by how Percy can control water. At the same time, there's the normal attraction of one person to another. The fanfiction might describe the mortal getting butterflies in their stomach when Percy is around.
There's also a fanfiction called 'Percy's Forbidden Love'. This one is a bit more angsty as Percy realizes that his crush on Artemis can never be fulfilled due to her divine nature and her vow of chastity. It explores his pain and acceptance of the situation.
Well, in many fanfictions like this, it could lead to some really interesting character dynamics. Nancy might start doing little things to get Percy's attention, like leaving notes or trying to be in the same places as him. It could also create some tension with other characters who might have their own feelings for Percy.
Well, Percy in fanfiction is often depicted as a very attractive character. He might be brave, like in the original stories. His adventures make him seem cool and heroic, which can easily draw others to have a crush on him.
Some fanfictions have a plot where Percy's crush on Artemis causes trouble among the gods. Since Artemis is a virgin goddess, the other gods might see Percy's feelings as a threat to the order of the divine world. This then leads to Percy having to face various challenges to prove his intentions are pure or to simply stay away from Artemis.
One possible plot could be that Jason is really shy about his crush at first. He tries to be around Percy more often, like joining the same quests or training sessions. He might secretly do nice things for Percy, like leaving his favorite food at his cabin without saying who it's from.
Well, it could start with Zoe being really shy around Percy. Maybe she blushes every time he talks to her. Then she might start leaving little hints about her feelings, like always being around where he is.
One possible scenario could be that Thalia is constantly trying to find excuses to be around Percy. She might volunteer for quests or tasks that she knows Percy will be involved in just so she can spend time with him.