One possible storyline could be that there is a misunderstanding. Maybe Artemis is under some kind of dark magic influence that makes her think Percy is a threat to the natural order she protects. So she sets out to kill him, but as the story progresses, Percy tries to prove his innocence and find a way to break the spell on Artemis.
Perhaps in a world where the gods' powers are waning and they're becoming more desperate. Artemis might see Percy's growing power as a danger to her domain. In the fanfiction, this could lead to a series of battles between them, with Percy initially on the defensive, trying to figure out how to reason with Artemis without getting killed.
One possible storyline could be that Artemis is influenced by some dark magic that makes her act out of character and cheat on Percy. This could lead to a big conflict within the fanfiction world, with Percy feeling betrayed and his friends trying to figure out what happened to Artemis. Another idea might be that there's a misunderstanding. Maybe Artemis was framed or something made it seem like she was cheating when she really wasn't. This could create a lot of drama as Percy has to decide whether to believe her or not.
It could be due to a lack of information. Artemis might not have known all the facts about Percy. For instance, if there was some sort of illusion or false information spread around, she could have misjudged the situation and accidentally killed him. Also, perhaps in the heat of a battle, she didn't have time to properly identify her target and made a tragic mistake.
One possible storyline could be the OC being a new demigod who catches the attention of both Percy and Artemis. Maybe the OC has a special power that is crucial in a new threat that's emerging in the world of the gods. For example, the OC could have the power to control time briefly, which becomes important when an ancient enemy tries to rewrite history to gain power.
One possible storyline could be Percy trying to find a way to break the forced marriage. He might seek the help of the gods who are sympathetic to Artemis' situation. Another could be Artemis using her wits and powers to resist the marriage while Percy supports her from the sidelines. Maybe there's a prophecy involved that the marriage is a part of but they find a loophole.
Some fanfictions might have a storyline where Percy and Artemis are in bed as part of a cultural exchange of sorts. Percy, being from Camp Half - Blood, and Artemis, the goddess of the hunt, might be in a situation where they are in bed in a traditional guest - host setting. For instance, Percy is a guest in Artemis's territory and she offers him a place to rest. During this time, they exchange stories about their different experiences. This type of story allows for a lot of world - building and character development as they learn from each other.
Percy could lose trust in the gods completely. After Artemis' betrayal, he might feel that he can't rely on any of them anymore.
Perhaps in the fanfiction, Percy has a special connection with nature or the moon in a way that Artemis feels is encroaching on her domain. Like Percy discovers a new power related to the moon that no one expected, and Artemis, being protective of her lunar powers, becomes jealous. This could lead to a series of challenges and confrontations between them as Artemis tries to reassert her dominance over her own areas of influence.
Well, in such a disturbing scenario, she could face social ostracism within the fanfiction's universe. Other characters might shun her for her heinous act.
One possible storyline could be that Artemis tries to hide her pregnancy while still fulfilling her duties. She might face challenges like dealing with her own changing body and the risk of being discovered. Another could be that she searches for the father in secret, all while feeling alone and scared.
One possible storyline could be them dealing with the initial shock and then preparing for the new arrival. They might face challenges from their superhero duties while also getting ready to be parents. For example, they could be worried about how to keep their child safe in a world full of villains.