Some fanfictions might explore the magical world's reaction to such an unusual pairing. For example, how would the other characters like Harry or Ron react? Or what about the wizarding society's views on this relationship? This adds an extra layer of complexity and drama to the story, making it more interesting to read.
In these fanfictions, a recurring theme is the change in their relationship. The pregnancy can bring them closer together or create new tensions. Also, the theme of protecting the unborn child from potential threats in the wizarding world, whether it's dark wizards or the prejudiced views of others, is quite common. Additionally, there may be exploration of how Hermione's academic life is affected and how Sirius adapts to the idea of becoming a father, which are all interesting aspects that authors like to explore.
A big theme is the exploration of Hermione's character growth. With Sirius as her guardian, she might be exposed to different aspects of magic and life that she wouldn't have otherwise. For example, she could learn more about the darker side of magic and how to combat it. Also, the theme of loyalty often comes up, as Sirius is loyal to Hermione and she to him in return.
Fanfiction.net could also be a good place to search. They have a vast collection of fanfictions. However, the search function might not be as advanced as AO3. So, you may need to do some more digging. Try searching for the characters' names and adding some key words like 'attraction' or 'romance' to narrow down the results.
Protection is also a big theme. Given Sirius' nature, he feels a sense of responsibility to keep Hermione safe. This could be from dark wizards or from the general dangers that lurk in the wizarding world. Sometimes, it's about protecting her reputation or her place at Hogwarts too.
One common theme is redemption. Sirius has had a troubled past, and Hermione could be seen as the one to help him fully redeem himself. Another theme is the power of love across different generations. Since they are from different age groups in the original series, the fanfictions might explore how love can bridge that gap.
One possible theme could be the exploration of unexpected attractions. It might also touch on the idea of breaking social or character - based norms within the 'Harry Potter' universe.
One common theme is mentorship. Sirius can be seen as a mentor to Hermione, guiding her with his more worldly wizarding knowledge. Another theme is the idea of family. Since Sirius is an outsider in his own family, and Hermione has Muggle - born status, they form a kind of surrogate family for each other.
Well, the 'Harry Potter' fanfiction community is vast and diverse. So, it's highly probable that there exists a fanfiction where Snape thinks Hermione is sexy. But this kind of portrayal can be a bit of a shock to some fans who are used to the more canonical relationships and character traits in the original series. It might also lead to some interesting discussions about character development and the flexibility of fan-created interpretations.
One common theme is the exploration of an unconventional friendship. Sirius and Hermione come from different generations in the wizarding world, so their friendship defies the norms.
A lot of these fanfictions explore the idea of forbidden love. Hermione and Sirius come from different generations in the original series, so when he's portrayed as dark, it adds an extra layer of taboo to their relationship. Also, mystery and adventure are common. They might be on a quest together, with Sirius' dark side influencing the journey in various ways.