The theme of redemption could play a part. Narcissa has been involved in some rather dark things in the original story. A kiss with Hermione could be a step towards her redemption, showing that she is capable of changing and seeing beyond the prejudices she was raised with. At the same time, for Hermione, it could be about seeing the humanity in someone who was once an 'enemy' and this could lead to a complex exploration of forgiveness and new beginnings.
One common theme is redemption. Often, Narcissa is shown as a character seeking some form of redemption, and Hermione can play a part in that journey. For example, in many fanfics, Hermione helps Narcissa come to terms with her past actions in the war.
I'm not sure about specific 'narcissa and hermione kiss fanfic' as there are so many fan - created works out there. You can try searching on popular fanfic websites like Archive of Our Own. They have a vast collection of fan - made stories and you might be able to find what you're looking for among their Harry Potter - related sections.
One possible plotline could be a story where Narcissa, perhaps having a change of heart in the complex world of the wizarding war, forms an unexpected bond with Hermione. They might start off as adversaries due to their different allegiances but gradually come to understand and support each other in a way that leads to this rather unique physical position as a symbolic representation of their new relationship.
Friendship or a deeper emotional connection is also a common theme. Despite their differences, the stories show how Hermione and Narcissa can find common ground and develop a strong bond. This could be due to shared experiences, like protecting their loved ones, or simply seeing the good in each other.
Common themes in 'narcissa and hermione fanfiction' include forgiveness. Given their different backgrounds and actions in the main story, forgiveness becomes a crucial part of their relationship development. There's also the theme of discovery. They discover new things about each other, like Hermione might discover Narcissa's hidden kindness and Narcissa might find Hermione's unique wisdom. Mystery can also be a theme, like when they work together to solve a mystery that involves their families or the wizarding world at large.
The theme of friendship across divides is also prevalent. Despite their differences, they form a bond through the teaching and learning process. This shows that in the world of fanfiction, even characters from seemingly opposing backgrounds can come together and learn from each other, breaking down the barriers that exist in the original Harry Potter universe.
Power is a common theme. In these fics, both Hermione and Narcissa are often powerful in different ways. Hermione might be exploring her new - found dark magic powers, and Narcissa has her influence in the wizarding world. Their power dynamics and how they use or misuse their power is often explored.
One possible theme could be love at first sight. Maybe Cassie and Sonya meet unexpectedly and there's an instant attraction that leads to their kiss.
A theme could be the exploration of different universes or timelines. In Doctor Who, there are always multitudes of possibilities. Maybe in this fanfic, a kiss between Clara and the Doctor is a turning point that leads them into a different timeline where their relationship takes on a whole new meaning. Another theme could be the power of a single moment. That one kiss could be a catalyst for a series of events that change their relationship and the fate of those around them.
The themes can be quite diverse. It could have a theme of friendship evolving into something more. Maybe they start as adversaries but through shared experiences, a kiss becomes a moment of deep connection. There could also be a theme of trust. A kiss might be a sign of the growing trust between them despite their initial differences. And of course, there could be a theme of exploring the unexplored relationship between two powerful female characters in the Star Wars lore.