Well, it could start with Artemis feeling a strange attraction to Orion, despite her relationship with Percy. Maybe she starts to secretly meet Orion, and Percy begins to suspect something is wrong. The story could then unfold with lies and secrets, and eventually, Percy discovers the truth and there's a big confrontation.
One possible plot could be that Artemis is under some sort of magic or curse that makes her act out of character and be attracted to Orion. Percy, being the loyal one, tries to figure out what's wrong with Artemis. Meanwhile, Orion, not fully understanding the situation, just goes along with Artemis' advances. The fanfiction could explore how Percy tries to break the spell and save his relationship with Artemis, or if Artemis will fully give in to her feelings for Orion.
Yes, there might be such a fanfiction in the vast world of fan - created content. However, this would be a very unorthodox take as Artemis is a virgin goddess in Greek mythology and Percy is from a different modern fictional context. So it's a very creative and perhaps controversial idea for a fanfic.
Well, perhaps in this fanfiction, Artemis betrays Percy for Orion due to a prophecy. There could be a prophecy that states that Orion and Artemis together will bring about some great change or prevent a huge disaster, and Artemis believes she has to choose Orion over Percy to fulfill it. Also, Orion might have some sort of leverage over Artemis that forces her to turn her back on Percy.
Well, it could be about Percy having to deal with the conflict of being the son of two such different deities. Maybe he has powers from both Orion and Artemis. For example, he could have Orion's hunting skills combined with Artemis's connection to the moon. He might struggle to fit in with the normal demigods as his origin is so unique.
Well, in a fanfiction of Artemis and Orion getting married, it could be that they first meet in a very unexpected way. Perhaps Artemis is on a hunt and Orion is lost in the forest. She takes pity on him and helps him find his way. As they spend more time together, they discover a deep connection. Their marriage could then be a grand affair, with all the gods and goddesses invited. But some might come with ulterior motives, creating drama and tension in the story.
One plot idea could be Percy's struggle to fit in among the demigods when his parentage is revealed. Since Artemis is a virgin goddess, his very existence would be a huge shock. Another could be Percy having unique powers inherited from both Artemis and Orion. For example, he might have enhanced archery skills from Artemis and great hunting or combat skills from Orion. Maybe he has to prove himself worthy to both his parents' legacies in a series of trials set by the gods.
I'm not entirely sure if there is specific 'Percy Jackson Artemis Pregnant by Orion' fanfiction. Fanfiction can cover all sorts of wild ideas, but this one seems a bit out of the ordinary. It really depends on the creativity of the fanfic writers in the Percy Jackson fandom. Some might find the idea interesting and write about it, while others may stick more to the traditional storylines.
One interesting plotline could be Orion teaming up with Percy to face a common enemy that threatens both the mortal and the demigod world, while Artemis has to decide whether to trust Orion again. Another could be Percy getting caught in the middle of an old feud between Orion and Artemis, and having to use his wits to keep the peace. Maybe a plot where Orion is redeemed through his interactions with Percy and gains Artemis's forgiveness in the end.
Well, in such a fanfiction, it could start with some sort of dark magic or a curse that causes this situation. Artemis would be in a state of shock and confusion as it goes against everything she stands for. Orion, on the other hand, might have his own motives or be an unwitting part of the situation. The story could then revolve around how Artemis tries to deal with this pregnancy while still maintaining her identity as a powerful goddess. There could be political implications among the gods as well, with some seeing it as an opportunity to gain power and others trying to help Artemis.
One possibility is that Artemis has been misinformed. Some enemy of Percy has tricked her into thinking that Percy is a danger to the demigods. So she kidnaps him to stop him from causing harm. But as she keeps Percy captive, she slowly realizes that she has been deceived when Percy starts to explain his side of the story and the real threats he has been fighting against.
One possible plot could be Percy getting caught in one of Artemis' hunts by accident. They initially clash due to their different natures but gradually develop feelings for each other.