One possibility is that they are forced to share a bed due to some magical or dangerous situation. Maybe they are in a strange place where there is only one bed available as shelter from a threat. They start off awkwardly but gradually learn to respect each other more during the night.
Perhaps it could be a story where Artemis, who is usually very reserved, has to share a bed with Percy because of a prophecy - related event. Percy, being his usual self, tries to break the ice. They end up having deep conversations about their different worlds and powers, forging an unexpected bond during their time in the same bed.
In this fanfiction, it could be that they are both injured and need to stay in a safe place. The only available place is a small room with a single bed. At first, Artemis is hesitant as she has her own principles, but Percy assures her of his respect. As they lie in the bed, they share stories of their adventures, and this shared experience makes them see each other in a new light, leading to a new - found friendship or alliance.
In the fanfiction, their relationship development could be complex. Since they are sharing a bed, there is a forced closeness. Percy might accidentally cross some of Artemis's boundaries at first, which would cause friction. But through talking it out and getting to know each other better, they could start to respect each other's boundaries more. As time passes, they might find common ground in their love for nature (in Percy's case, his connection to the sea which is also part of nature). This could lead to a slow but steady growth of a relationship that is based on mutual understanding and respect.
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.
A plot could be that there's some sort of dark magic that is affecting the balance between the gods and the demigods. Artemis and Percy are brought together to combat it. Along the way, Percy shows a side of himself that Artemis is drawn to. His courage and selflessness intrigue her. And in a moment of vulnerability, Artemis kisses Percy. This kiss then becomes a catalyst for a deeper exploration of their relationship and the greater threat at hand.
One possible plot could be that Artemis is captured by some powerful ancient enemy, like a primordial being. Percy, with his skills and courage, embarks on a quest to find her. He might face various challenges and monsters along the way. Maybe he has to solve some riddles related to the moon, as it's Artemis's domain. Finally, he locates Artemis and uses his water powers in a creative way to defeat the captor and free her.
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.
One possible plot could be Percy having to defend Artemis from a new and powerful enemy. Maybe a primordial being has awakened and is targeting Artemis. Percy, with his skills and the help of his friends, must fight this enemy. He could also have to deal with the politics among the gods as he tries to protect Artemis, since some gods might not be so happy about his interference.
In this fanfiction, it could be that Artemis is in a situation where she is about to be killed or lose her powers forever. Percy, being the selfless hero he is, takes on a deadly task to prevent that from happening. Maybe it involves facing an ancient and malevolent god who has a vendetta against Artemis, and Percy uses his unique abilities and the element of surprise to try and stop this god, but at the cost of his own life.
The plot might involve a prophecy that somehow links Percy and Artemis. This prophecy could bring them together in a journey across different realms. Along the way, Percy discovers a new side of Artemis, one that is not just the cold and distant goddess. Artemis, too, sees Percy's loyalty and selflessness. Their relationship evolves as they face numerous challenges and obstacles, and they realize that their love is something that is fated and cannot be ignored.
The plot could start with Percy being sent on a mission that somehow intersects with Artemis's territory. Maybe he's looking for a powerful magical item that Artemis also has an interest in. At first, they might be at odds, with Artemis seeing Percy as an intruder. But as they face challenges together, like fending off a horde of mythical beasts, they start to respect each other. Percy's ability to think on his feet and Artemis's strategic mind work well together. Eventually, they realize they have more in common than they thought and form a friendship based on mutual respect and shared goals.