Another plotline could be Sirius helping Hermione with her research or studies about the wizarding world's history and secrets. Since he has a lot of knowledge and experience, he can be a great mentor to her, and during this process, their feelings grow deeper. Well, in some fanfictions, they might also go on adventures together. For example, they could be searching for a lost magical artifact. Along the way, they face challenges and rely on each other, which further cements their relationship.
One common plotline is Sirius being protective of Hermione. He might see her intelligence and bravery and feel drawn to her. He could protect her from various threats in the wizarding world, like Death Eaters or other dark forces.
Well, Harry might be a bit surprised at first. But he could also be supportive as he values both Sirius and Hermione. He might see that Sirius makes Hermione happy and be okay with it.
There are also fanfics where Bill is initially unaware of Hermione's feelings. So, Hermione has to find ways to subtly show her interest. This can lead to some really cute and awkward moments between them, as she tries to get closer to him without being too obvious.
One common theme is the age - gap relationship dynamic. Since Remus is older, there's often a sense of Hermione having to navigate her feelings in the face of this difference. Another theme is the exploration of Hermione's more emotional side, as she's usually portrayed as very logical in the original series. Here, her smitten state shows a different aspect of her character.
In a fanfiction, there could be a plot where Hermione starts tutoring younger students in advanced magic. Sirius witnesses her teaching skills and her passion for knowledge. He begins to see her not just as a young witch, but as a very attractive and intelligent woman. Another idea is that they are both on a secret mission for the Order of the Phoenix. Hermione's ability to stay calm under pressure and her strategic thinking during the mission makes Sirius feel a strong attraction towards her.
Some fanfictions explore the idea of Sirius Black and Harry going on secret adventures together. Maybe they discover a hidden part of the wizarding world or try to solve an ancient mystery that has been long forgotten. This kind of plotline often involves a lot of action and exploration.
One plotline could be that Sirius is trying to make Remus Lupin jealous by flirting with Hermione. He might not have real feelings at first but then actually starts to develop them as he gets to know her better.
One good fanfiction could be 'The Unlikely Bond'. In this story, Hermione and Sirius Black form a strong friendship as they work together to solve a mystery within Hogwarts. They exchange knowledge and wisdom, with Hermione sharing her academic insights and Sirius providing his practical experience from his years as a Marauder.
One common plotline could be that Hermione is betrayed by her friends in Hogwarts. For example, they might believe false rumors about her and turn their backs on her. Another could be a romantic betrayal, like if Ron, in a different take on the story, cheats on her or breaks her heart in some way. Sometimes, she could be betrayed by the wizarding community as a whole, perhaps being wrongly accused of dark magic and no one believing in her innocence.
In some fanfictions, Hermione might be comforted by Sirius after an encounter with a dark wizard or a particularly difficult spellcasting session. Sirius, being a skilled wizard himself, would reassure her. He might take her on a walk around the grounds of Grimmauld Place, showing her the beauty in the old, dark place and telling her that just as the place has hidden charm, so does she, even in her moments of self - doubt.
One common plot is Snape trying to protect Hermione secretly. Another is them having deep, intellectual conversations that gradually lead to romantic feelings.