One possible scenario in such a fanfiction could be that Kara gets physically hurt during a fight against a powerful enemy while Lena is desperately trying to find a way to save her. Maybe Lena uses her scientific knowledge to develop a new device that can heal Kara's injuries. This would show the deep bond between them as Lena risks everything to save Kara.
One popular Kara and Lena fanfiction could be 'A New Beginning'. It focuses on their relationship evolving in a post - apocalyptic world. They have to rely on each other and in the process, their bond deepens.
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.
There's also 'Heartbeats in Harmony'. In this fanfiction, Kara and Lena face a common enemy that forces them to rely on each other even more. The story is filled with action scenes and at the same time, the development of their relationship is at the forefront. It's a great read for fans of the two characters.
A popular theme is the discovery of their true selves. In some fanfictions, Lena and Kara are on a journey of self - discovery, and their relationship helps them in that process. There are also stories that focus on the theme of sacrifice. They might be in a situation where one has to sacrifice something for the other, which shows the strength of their connection. Love, both platonic and romantic, is also a common theme that runs through a lot of lena and kara fanfiction. It could be a slow - burn love story or a story about the unbreakable bond of friendship that has elements of love.
One common theme is family building. It shows how Lena and Kara come together to create a family unit with the baby. Another theme is the exploration of their relationship. Having a baby often tests and deepens their bond.
One possible plot could be that Lena and Kara are in a dangerous situation together. As they face a powerful enemy, they realize their deep feelings for each other. In a moment of intense emotion, perhaps after one saves the other's life, they share a kiss.
One possible fanfiction could be about Lena Luthor becoming a mentor to young Kara Danvers. Lena, with her intelligence and resources, could help Kara understand the complex world around her while also learning to control her powers better. Maybe Lena discovers Kara's identity early on and decides to guide her in secret, away from the prying eyes of Lex Luthor and other potential threats.
In this fanfiction, Kara and Lena might initially be cautious around each other. Maybe they meet in a chance encounter, like at a coffee shop. Kara could be intrigued by Lena's intelligence and Lena might be drawn to Kara's kind - hearted nature.
You can start by searching on popular fanfiction websites like Archive of Our Own. Use relevant tags such as 'Kara and Lena' or 'Supergirl' related tags. Read the summaries and reviews to find the ones that seem interesting.