There are a few rare gems out there where Sirius is depicted as Hermione's father. You might have to do some extensive searching on dedicated fanfiction sites, reading summaries and reviews to find the ones that suit your fancy. It's a niche idea, but you never know what creative minds have come up with!
Yes, there are fanfictions with this concept. Some authors like to explore alternative family relationships in the Harry Potter universe. It can lead to really interesting storylines, like how Sirius would have protected Hermione in a different way compared to her canon upbringing, and how it might change the dynamics between Hermione and other characters such as Harry and Ron.
Family relationships are also a big theme. These fanfics usually show how Hermione and Sirius interact with their daughter, and how the family dynamic works. It could be a loving and nurturing environment or one filled with challenges as they try to protect her from the dangers of the wizarding world. Magic and power is another common theme. Their daughter is often depicted as having strong magical abilities, and the fanfics explore how she uses and controls her power.
One possible plotline could be Sirius revealing the truth to Hermione early on. This would make Hermione question her identity and her place in the wizarding world. She might then start to explore her Black family heritage more, which could lead to her getting involved in things related to the family's dark past.
One common theme is family. It explores how a non - traditional family structure with two fathers can function. Another theme is acceptance, both within the family and in the wizarding community. Also, the fanfics often deal with the challenges of raising Harry in this new setup.
Often, it begins with Hermione trying to help Sirius deal with his post - Azkaban trauma. She uses her knowledge and compassion to reach out to him. As he heals, he starts to see her in a new light. Their relationship then grows as they start to understand each other better. The lemon parts usually are used to explore their more passionate and private moments, which are often written in a very tender and intense way, adding a new dimension to their relationship.
One popular story might be 'Forbidden Bonds' which explores a unique relationship between them. It delves deep into their characters and how they might interact in a different way than in the original series. The author creates a lot of tension and drama, making it an engaging read.
Sirius could play multiple roles. Firstly, he could be a friend who listens to Hermione's rants and sorrows. Secondly, he might act as a protector, making sure Hermione doesn't do anything rash in her emotional state. And thirdly, he could be a catalyst for Hermione's growth. His presence could make Hermione realize that there are other aspects of life and relationships that she has been overlooking. His friendship could open up new opportunities for her, whether it's in terms of magical knowledge or personal development, all while she is dealing with the aftermath of Ron's cheating.
In some fanfictions, Sirius Black helps Hermione with her studies. For example, he might share his own experiences with difficult spells and potions, which he learned during his time at Hogwarts. This kind of help can give Hermione new insights and make her even more proficient in magic.
It would likely make her more self - assured. Sirius would constantly be there to support her and tell her she's capable. This could lead to Hermione being even more outspoken and confident. Instead of just arguing her points in the classroom, she might start challenging the wizarding world's old - fashioned ideas more publicly. Also, she might develop a stronger sense of loyalty to those she cares about, like Sirius, similar to the loyalty he showed to his friends.
A father - daughter like relationship could be expected. Sirius, having lost so much in his life, might see Hermione as someone he can care for and protect, much like a daughter. He could be very protective of her and give her advice on how to navigate the complex wizarding world.