One reason could be the unique relationship between Silena and Beckendorf. Fans are interested in seeing their story developed further. The lemon aspect might add a bit of allure for some readers who enjoy a more romantic and somewhat steamy side of the story.
Well, in this kind of fanfiction, Silena is often depicted as a complex character. She might be shown with her charm and loyalty. Beckendorf, on the other hand, is usually seen as strong and reliable. Their relationship in the fanfiction could be explored through their interactions, like how they support each other in different situations.
They could be in a story where they time - travel. Maybe they accidentally get sent back to an ancient time in the world of the Greek gods. There, they have to figure out how to get back while also dealing with the strange and dangerous things of that era. Silena might use her wits to blend in with the people of that time, while Beckendorf tries to find a way to build a device that can get them home. Percy could be involved too, and they all have to work together to survive in this unfamiliar place.
One possible fanfiction could be about their adventures before they met Percy. Maybe it focuses on how Silena and Beckendorf first got to know each other at Camp Half - Blood. They could be training together, and during a sparring session, they start to notice each other's skills and unique personalities. Beckendorf might be impressed by Silena's cleverness in combat strategies, even though she may not be as physically strong as some of the other campers. And Silena could be attracted to Beckendorf's quiet determination and his amazing craftsmanship in the forges.
Friendship within the camp setting is also a theme. Their relationship didn't exist in a vacuum. Fanfics often show how their love was intertwined with their friendships with other campers, and how those relationships affected their own relationship.
I really liked 'Silena's Memories of Beckendorf'. This one is more from Silena's perspective. It details her memories of Beckendorf, from their first meeting to the little things she loved about him. It's a very sentimental and touching fanfic.
Another reason is that fanfic readers love to see different interpretations of characters. In the case of Silena in Percy Jackson fanfics, different writers can show her in various lights. Some might focus on her loyalty, others on her hidden powers. It gives a diverse range of stories that appeal to different tastes within the fan community.
The mystery between them can be appealing. Since they are both part of the demigod world, there are secrets and unspoken feelings that can be explored in fanfiction. It's like there's a hidden layer to their relationship waiting to be uncovered.
One possible fanfiction could be about Percy, Silena, and Lemon going on a quest together. Maybe they have to find a hidden artifact in a dangerous forest. Percy uses his water powers to cross a raging river, Silena uses her charm speak to get information from some unfriendly creatures, and Lemon could be a magical guide who has knowledge of the forest's secrets.
Well, the fanfiction could be centered around a prophecy that involves Percy, Silena, and Lemon. The prophecy states that only they can retrieve a powerful magical item from a forbidden realm. Along the way, they face many trials. For example, they have to outwit a powerful sorcerer who guards the entrance to the realm. Silena uses her charm to distract the sorcerer while Percy and Lemon find a way to get past his defenses.
One reason could be the popularity of the character Janeway herself. Fans are interested in exploring different scenarios involving her, including those in the realm of fanfiction like the lemon category.