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.
Well, obviously Kara herself is a common character. Then there's often her adoptive family, like the Danvers. Alex Danvers, her sister, is frequently in these fanfictions. They usually have a strong bond that's explored further. Also, Clark Kent might make an appearance. Since he's also from Krypton, he can act as a mentor or a source of information for Kara about their home planet.
One interesting storyline could be Kara adjusting to life on Earth as a young girl. Maybe she's trying to hide her powers while also making friends at school. Another could be her learning about her Kryptonian heritage in a more personal way, like finding a hidden family heirloom that gives her new insights.
In Supergirl fanfiction, a pregnancy involving Winn and Kara can be a very interesting plot device. It could bring out different aspects of their characters. For example, Winn might show his more protective side. However, in the official storylines, there's no such plot, so fanfiction gives writers the freedom to explore this uncharted territory.
Supergirl fanfiction often focuses on various aspects of the characters' relationships and adventures. However, creating or seeking adult - themed fanfiction may not be in line with the positive and family - friendly nature of the Supergirl franchise. It's better to look for general fanfiction that emphasizes their sisterly bond, heroic deeds, and character development.
In fanfiction, when Kara and Lena are married, we can expect a lot of fluff. There will be scenes of them cuddling on the couch, sharing sweet nothings. Their marriage could also mean more united front against villains. They would be each other's strength and support, making them a formidable pair.
One great Supergirl Baby Kara fanfiction is 'Kara's New Beginning'. It focuses on Kara adjusting to life on Earth as a baby in a very heartwarming way. The author does a wonderful job of showing her early days and how she discovers her powers in a more innocent, child - like context.
The themes can vary widely. Some fanfictions focus on the theme of redemption. For instance, if their relationship has caused some sort of rift in their family or among friends, they might seek redemption. Another common theme is secrecy. Given the nature of their relationship in the context of the show, they may have to keep their love a secret. And then there's the theme of growth. Their relationship can be a catalyst for personal growth, both as individuals and as a couple.