One common theme is the struggle with identity. Percy might question his own values and loyalties because of his crush on Luke. Another theme could be the exploration of unrequited love, where Percy's feelings are not initially reciprocated. And there's often the theme of self - discovery through his emotions for Luke.
In fanfics, the writer has a lot of creative freedom. Percy's crush could be a completely new character created by the author just for this story. Or it could be an existing character that has a different relationship with Percy in this fan - created narrative. For example, it could be a minor character that the author decides to develop a romantic plotline for with Percy.
In some fanfictions, Percy's crush on Luke can add a lot of interesting drama. It might be a slow - burn kind of thing, where Percy gradually realizes his feelings as he gets to know Luke better. Maybe Percy is drawn to Luke's confidence at first, but then as he discovers more about Luke's complex personality, his crush deepens. It can also create a great source of internal conflict for Percy, especially if he's supposed to be on opposing sides with Luke in the original story.
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.
I'm not sure specifically as there could be many different versions of such a fanfic. But generally, there might be drama, like Luke using the knowledge of Percy's crush for his own advantage, or perhaps he tries to help Percy out in an unexpected way.
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.