It depends on the writer's interpretation. Some fanfiction authors might play up the sexual tension angle. They could write scenes where Snape and Hermione are alone in Grimmauld Place and there are lingering looks or accidental touches that create an atmosphere of something more. But others would focus on their intellectual connection. Snape's vast knowledge of the Dark Arts and Hermione's thirst for learning could lead to a relationship based on mutual respect and the sharing of information in that spooky old house.
In many fanfictions, there could be a mix of both. It might start as a platonic bond due to their shared experiences in the wizarding world. For example, they both have complex relationships with Harry. However, the Grimmauld Place setting can add an air of mystery and closeness. The old, dark house could be a backdrop for some intense emotional exchanges that might be misconstrued as sexual tension at first. But often, it could develop into a deep, non - romantic understanding between them.
In this fanfiction setting, Snape might be at Grimmauld Place on some secret mission. Hermione, being the inquisitive witch she is, could stumble upon him. There could be a tense moment at first, but then they realize they need to cooperate. Snape could teach Hermione some advanced magic that she wouldn't learn at Hogwarts, and in return, Hermione could offer her unique perspective on the wizarding world. Their relationship could develop into an unlikely alliance, which would be really exciting to read about.
At Grimmauld Place, Hermione and Snape could start off on the wrong foot as usual. But as time passes, they might find common ground. For instance, if they both discover a threat to the wizarding world that is related to Grimmauld Place. Snape's expertise and Hermione's determination could lead them to work together. This shared purpose could make Snape view Hermione as an equal, rather than a student, and Hermione could see Snape's true loyalty and sacrifice, thus changing their relationship for the better.
Well, Grimmauld Place has a certain history and a rather oppressive feel. In fanfiction, this can set the tone for the relationship between Snape and Hermione. It could be a place where they are forced to confront their differences. Snape's past associations with the place might be different from Hermione's view of it as a new member of the Order. This contrast can lead to interesting interactions, from heated debates to moments of unexpected understanding.
I don't really support the idea of sexual tension between Hermione and Snape as it goes against the original nature of their relationship in the Harry Potter series. However, some fanfiction platforms like Archive of Our Own might have such works, but I can't specifically recommend any due to the discomfort of this theme.
Well, aside from the sexual tension itself, there might be themes related to the clash of their personalities. Hermione is highly intelligent and confident, while Snape is brooding and secretive. How these two personalities interact and either complement or conflict with each other could be a theme. Also, there could be themes around secrecy. Given the inappropriate nature of a teacher - student relationship in the normal context, how they keep their relationship (if there is one in the fanfiction) a secret could be explored.
Another aspect could be that Hermione sees Snape's past and the hardships he has faced. Maybe she stumbles upon some old memories of his in the library. This newfound understanding makes her more empathetic towards him. As a result, they start to communicate more and form an alliance of sorts, united by their love for Hogwarts and the wizarding world.
Since I haven't read this fanfiction, it's difficult to give a detailed account. However, it may be a story that uses Grimmauld Place as a backdrop for some sort of romantic or sexual plot. It could be about how the characters interact with each other in this location in a more private and personal way. It might also explore the secrecy and the unique atmosphere of Grimmauld Place and how that impacts the relationships and the sexual or romantic elements within the fanfiction.
One major problem is that it goes against the age - appropriate nature of the 'Harry Potter' series. Hermione is a minor for a large part of the story, and Sirius is an adult. This kind of relationship dynamic in a sexual - tension context is inappropriate.
One possible plotline could be Lucius having a change of heart due to Hermione's intelligence and strong will. Maybe he starts to question his Death Eater beliefs as he interacts with her at Grimmauld Place. Another could be Hermione using her knowledge to outwit Lucius in some sort of magical duel or intellectual battle within the house.
Well, self - discovery is a theme that pops up a lot. While at Grimmauld Place, Ron and Hermione often learn more about themselves as individuals. This in turn affects their relationship with each other. Another theme is the exploration of magic in a different context. Grimmauld Place has its own unique magical properties, and fanfictions like to play with how Ron and Hermione interact with this magic, whether it's using it to solve problems or just being in awe of it. And of course, the theme of love and friendship is ever - present, as they support each other through all the challenges the place presents.