One alternative could be writing friendship - focused fanfiction. You can explore their relationship as friends, how they support each other, and the adventures they might have together without any sexual undertones. Another option is to write about their professional or academic interactions, if that's relevant in the original context.
You could write a fanfiction that focuses on their personal growth. For example, how Spencer overcomes certain challenges in her life with the help of Wren, or vice versa. You can also write a story about their cultural or social experiences within the world of the original work. There's no need to rely on sexual content to make a fanfiction interesting.
In my opinion, it's not really ethical. The characters of Spencer and Wren are part of a story universe, and sexualizing them in fanfiction in a way that goes against the original tone of the show or story is inappropriate. It can also objectify the characters and may not be in line with the values the original creators intended.
You could write about their friendship development. For example, how they become closer friends and support each other through various challenges in the story.
You could write about their friendship. Explore how they support each other, their inside jokes, and how their relationship has evolved over time in a platonic way.
Rather than sexual fanfiction, consider writing a story about the emotional bonds between the characters. For instance, how they deal with loss or trauma together. You can also explore their dreams and aspirations outside of work, like Spencer Reid's intellectual pursuits, in a way that builds a rich and respectful story without any sexual elements.
There could be friendship - centered fan fictions about Spencer and David. Focusing on their adventures, problem - solving together, or just their daily interactions in a non - sexual way.
One common theme is forbidden love. Since there are so many secrets and complications in the show, this often translates into their relationship in fanfiction. Another theme is mystery, as both characters have their own secrets, and fanfic writers like to explore how these secrets affect their relationship.
You could write fanfic about his friendships in the show. For example, his interactions with his team members like how they solve cases together and support each other. This would be more in line with the positive aspects of the show.
You could write adventure - based fanfiction. For example, create a story where the Smosh characters go on an epic quest. This allows for creativity and still involves the beloved characters in a positive and engaging way.
You could write adventure - based fanfiction where Roman Rogers goes on exciting quests or solves mysteries.
Rather than sexual content, you could explore the surgeon's personal growth. Maybe they are trying to overcome a fear or learn a new surgical technique. You can also write about their interactions with patients outside of the surgical setting, such as how they provide post - operative care and emotional support.