The plot could be centered around a time - traveling adventure. Barry Allen uses his speed to travel through time and accidentally brings Kara Danvers to a different era. There, they find a lemon grove that has some sort of magical properties. A villain wants to use these properties for evil, so Barry and Kara must protect the lemon grove and find a way to get back to their own time.
One great fanfiction could be about Barry Allen and Kara Danvers teaming up on a mission where they encounter a strange phenomenon related to the 'lemon' element. Maybe it's a new type of meta - human whose powers are lemon - based. They have to figure out how to stop this meta - human while also dealing with their own personal issues and the budding friendship between them.
One great fanfiction could be 'The Flash and Supergirl: United Front'. It's about how Barry and Kara team up to face a powerful new villain that neither of their cities has ever seen. They combine their powers in unique ways and develop a deeper friendship along the way.
Some dedicated superhero fanfiction forums might also have Barry Allen and Kara Danvers stories. These forums often have a community of fans who write and share their own fanfics. You might need to register on the forum to access all the content, but it can be worth it as you can interact with other fans and even request for specific types of fanfictions.
One common theme is teamwork. Since they both have superpowers, fanfics often explore how they can combine their abilities to fight stronger enemies. For example, Barry's speed and Kara's super strength can be used in tandem in battle.
One great fanfiction could be where Barry and Kara's powers play an interesting role during the pregnancy. Maybe their super - speed and flight abilities are affected in unique ways. For example, Kara might find it difficult to fly as she gets further along in the pregnancy because of the added weight and changes in her center of gravity. And Barry could be constantly worried about using his speed in case it causes any harm to the baby. Another aspect could be how their respective superhero teams support them during this time.
Well, an interesting plot might be that Barry and Kara discover a connection between their powers at a deeper level. For example, their powers are linked to an ancient energy source. As they explore this, they grow closer. Or perhaps there's a plot where Kara is transported to Barry's universe and has to adapt to his world while they solve a mystery that threatens both their universes. There could also be a story where they are forced to hide their relationship from their respective superhero teams for some reason, adding a bit of drama to the mix.
One possibility is that their relationship could face challenges from their respective superhero duties. They might have to keep their relationship a secret from their friends and allies in order to protect them. Another option is that their kiss could be a one - time thing, and they decide to remain just friends. Or perhaps it could lead to a full - blown romance, with them teaming up more often both in and out of their superhero personas.
One popular 'Barry Allen and Kara Danvers fanfic' is 'Speed of Hope'. It shows their adventures together as they face a new threat that neither of their individual cities could handle alone. The story does a great job of portraying their different powers and how they complement each other.
You can start by looking on popular fanfiction websites like Archive of Our Own (AO3). There are often tags for Barry Allen and Kara Danvers, which can help you filter through the vast amount of stories. Another option is FanFiction.net, though the interface and tagging system might be a bit different. Additionally, some Tumblr blogs are dedicated to sharing and discussing fanfiction related to these characters, so searching relevant tags on Tumblr could also lead you to some great reads.