This kind of fanfiction could potentially explore Hermione's curiosity or it might be used to develop a complex plot around her character's exploration of different aspects of sexuality. But it really depends on the specific story and the author's imagination.
The first appearance of lesbian porn stories online is difficult to determine precisely. It likely occurred gradually as the internet grew and different types of content became available, without a clear-cut beginning.
The book 'Ash' is also a good choice. It's a retelling of the Cinderella story with a lesbian twist. The main character's exploration of her feelings and her place in the world makes it an interesting read for those interested in young adult fiction with LGBTQ+ themes.
Perhaps there's a best friend character. This person could be a mortal who is initially unaware of Nancy's demigod status. As the story progresses, they might get dragged into Nancy's world and have to deal with the consequences. There could also be a villainous demigod who is trying to stop Nancy from achieving her goals or is causing trouble in the demigod world in general.
The main distinction of porn with a story genre from regular porn is the presence of a coherent narrative. Regular porn often jumps straight to the sexual action, while the story genre tries to add some kind of story framework around it. But in the end, both are adult-oriented and feature explicit sexual content.
Ned Nickerson is a well - liked character. He is Nancy's boyfriend. He sometimes gets involved in the mysteries in a way that helps Nancy. And Carson Drew, Nancy's father, is also important. His profession as a lawyer sometimes ties into the cases Nancy is solving.