Fanfic about The Flash's Barry and Caitlin: What are some interesting plot ideas?

One plot idea could be that Barry discovers a new power that only Caitlin can help him control because of her scientific knowledge. Another could be that they go on a time - traveling adventure together to save Central City from a future threat. Or perhaps they team up to find a cure for a meta - human related illness that is spreading in the city.

A great plot for a Barry and Caitlin fanfic could be a parallel universe story. In this universe, Barry and Caitlin are the only ones who remember their original reality. They have to work together to find a way back home while also dealing with the different versions of their friends in this new universe. This would be full of drama and also a chance for their relationship to grow.

One idea could be a time - travel plot where Barry accidentally takes Caitlin and Jesse to a different era. There, they have to work together to find a way back while also facing the challenges of that time period, like dealing with different versions of their friends or foes.

A plot could revolve around Caitlin and Barry being forced to work undercover as a couple to infiltrate a criminal organization. As they pretend to be in love, they start to realize their true feelings for each other. Or perhaps Caitlin's scientific knowledge and Barry's speed are the only things that can stop a city - wide disaster caused by a malfunctioning S.T.A.R. Labs experiment.

In a fanfic, they could be at a party. They are both a bit tipsy and end up in a corner of the room. They start reminiscing about old times and their feelings for each other surface. Before they know it, they are kissing. The rest of the fanfic could then explore how this new development affects their relationships with the other team members.

One interesting storyline could be Barry and Caitlin going on a parallel universe adventure together. They might discover new powers or face off against versions of themselves. Another could be a time - travel plot where they have to fix something in the past that affects their relationship in the present.

Character development is key. If the fanfic shows how Barry and Caitlin grow both as individuals and in their relationship, it can be very engaging. For example, if Barry overcomes his fear of losing his powers permanently while Caitlin learns to open up more about her emotions. Their journey together, with all the ups and downs, keeps the readers interested.

One idea could be that the reader discovers she's pregnant and is worried about how Barry will react. Given his life as The Flash, she might fear he won't have time for their family. Another could be that the pregnancy has some sort of meta - human related aspect to it. Maybe the baby shows signs of superpowers even before being born.

In this fanfic, Caitlin and Barry could be living in a world where their relationship has developed secretly. When Caitlin finds out she's pregnant, they have to decide whether to keep it a secret or tell their friends. They might be afraid of how their friends will react, especially considering their superhero lives. However, as time passes, they start to see the pregnancy as a new chapter in their lives. Caitlin starts to experience all the joys and difficulties of pregnancy, like morning sickness and cravings. Barry tries his best to be there for her, taking time off from his superhero duties to take care of her. They also start to plan for the future of their family, thinking about how to raise their child in a world full of danger and yet also full of love and friendship.

Another plot could involve their relationship being tested by external threats. Like a meta - human villain who discovers their secret and tries to use it against them. They would then have to decide whether to come clean to their friends for help or try to handle it on their own while still protecting their relationship.