A common theme is power exploration. Since Kara and Superman have superpowers, an oc in these fanfictions might also have powers or be in the process of getting them. Another theme could be friendship. The oc might form a strong bond with Kara and Superman, like helping them through a tough time or vice versa.
I'm not sure of specific 'kara superman oc fanfiction' titles off the top of my head. But you could also try looking on Wattpad. Sometimes, users there write unique fanfics. Maybe there's one where the oc is from a different planet and has a complex relationship with Kara and Superman, adding new layers to the existing DC lore.
One common theme is friendship. The OC often becomes a close friend to Kara Danvers, and they go through various adventures together. Another theme is the OC having special powers or abilities and how they interact with Kara's powers. It can create some really interesting storylines.
The new perspectives. An OC (original character) can bring in fresh ideas and storylines. For instance, an OC could have a unique power that changes the dynamics in the Supergirl world.
Yes, there are many. You can start by looking on fanfiction websites like Archive of Our Own. Just search for 'kara supergirl oc' and you'll find a variety of stories. Some might focus on Kara's adventures with a new original character, while others could be more about the relationships that an OC forms within the Supergirl universe.
Often, the theme of growth is present. As the story progresses, both Kara and the female oc grow as individuals. Their relationship also matures. And sometimes, there's a theme of finding a place in the world. The female oc, especially if she's new to Kara's world, has to figure out where she belongs, with Kara's help or on her own.
One popular Kara female oc fanfiction might be the ones where the original character (oc) has a unique friendship with Kara. For example, there could be a story where the oc is a new alien on Earth and Kara helps her adapt, which often includes elements like exploring the new powers of the oc and their shared experiences of being different.
One idea could be creating an OC (Original Character) who is a young journalist from a different planet. They come to Earth and end up working with Clark Kent at the Daily Planet. Their different perspective on Earth and Superman's world can create a lot of interesting storylines.
If an OC reincarnated as Superman in fanfiction, it would be an amazing transformation. The OC would suddenly find themselves in a world where they are almost invincible. They would have to deal with the public's perception of them, just like Superman does. And they might also bring in some of their own unique traits from their previous life into the role of Superman. For instance, if the OC was a shy person before, they might struggle with the public spotlight that comes with being Superman.
In a 'Superman OC Lemon Fanfiction', first and foremost, the original character is the centerpiece. They need to have a distinct identity that stands out. This could be through their unique powers, if they have any, or their personal values. When it comes to the 'lemon' aspect, it's about creating an emotional and physical connection between the OC and Superman. But it's not just about that. The story also has to have a plot that moves forward. It could be about the OC helping Superman save the city, or dealing with a new threat in Metropolis. The Superman elements, such as his Kryptonian heritage and his code of ethics, should be interwoven into the story. This makes the fanfiction feel like it belongs in the Superman universe while still allowing for the creative freedom of the OC.