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.
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.
Pornographic stories are not the kind of content that should be promoted as 'famous'. We should stay away from porn and instead look at positive gay - related works like the movie 'Moonlight' which tells a poignant and profound story of a young black gay man growing up.
Such stories usually center around sexual exploits and may present distorted and unhealthy views of relationships and human behavior. They are not something that should be promoted or consumed.