The power of change is also a common theme. Their relationship can bring about changes in each other. For example, Sirius might make the female Snape more open - minded, and she might make him more cautious. These themes add depth to the fanfictions and make them more than just simple love stories between two characters.
One common theme is redemption. Many fanfics explore the idea of Snape or Sirius finding a way to redeem themselves in the eyes of the other. For example, Snape might do something heroic to earn Sirius' respect.
One common theme is the clash of personalities. Sirius is often seen as more carefree and rebellious, while Severus, even as a female, is likely to be portrayed as more reserved and intellectual. Their relationship in these fanfictions usually starts with some sort of conflict that they have to overcome.
Love triangles are also somewhat common in Severus Snape and Sirius Black fanfiction. Sometimes it involves a love interest from the original series, like Lily Evans, and how their feelings for her, both past and present, impact their relationship with each other. It can add a whole new layer of drama and complexity to the story.
Often, there is also a theme of character growth. The experience of mpreg can be a catalyst for both Sirius and Severus to change and develop. They might become more empathetic, or they might have to learn to rely on each other in ways they never expected before. It's a way to take these well - known characters and put them in a situation that challenges and transforms them.
Common themes? Well, there's the exploration of Snape's past. In many female - centered fanfictions, the female character uncovers the secrets of Snape's past and this helps in either mending his broken soul or understanding him better. Transformation is also a theme. Snape may transform as a person due to his interactions with the female character. Also, there's the theme of sacrifice. The female or Snape might sacrifice something for the other's well - being.
Power dynamics could be a major theme. Given the idea of one being a'slave' to the other, there would likely be a lot of exploration of who has power and how it's used or abused. For example, Snape might have power over Sirius Black in this scenario, and how Sirius copes with that power imbalance.
One common theme is family. Since Sirius is adopting the female Harry, it explores the idea of creating a new family unit. It shows how they support each other and grow together.
One common scenario is when Snape is trying to teach at Hogwarts. Sirius might be delusional in thinking that Snape is still up to no good and is secretly influencing students in a bad way, even if Snape is just doing his job as a teacher.
One common theme is the exploration of a different kind of relationship dynamic. Since Harry is female, the relationship with Snape can have a more complex emotional undertone, often involving elements of mentorship and a different form of mutual respect.
One common theme is freedom. Both Buckbeak and Sirius have been wronged and are in a fight for their freedom. In many fanfictions, they help each other achieve that freedom, whether it's Sirius using Buckbeak to escape or Buckbeak being freed with Sirius' help.