Perhaps there's a parallel universe where Cyborg and Jinx are friends from the start. They go on adventures together, using their combined skills to protect their version of the city. This fanfic could explore how their friendship changes them and how they face challenges together that they couldn't alone.
One idea could be exploring the backstories of the other cyborgs in more detail. For example, what was their life like before becoming a cyborg? Another could be a time - travel plot where Cyborg 009 goes back to change a crucial event in the past that affected all the cyborgs. Maybe a story about how they interact with normal humans in a world that is starting to accept them more, and the challenges that come with that.
One common theme is the idea of two outcasts finding connection. Jinx is often seen as a chaotic and troubled character, and Cyborg has his own set of issues with his cybernetic body. Their relationship in fanfics can explore how they understand and accept each other's differences.
Redemption is another theme. Jinx is a character with a lot of chaos in her life. Some fanfics might have Cyborg as a figure who helps Jinx find a path towards redemption or at least a more positive way of living. It could be about how their relationship changes as Jinx tries to better herself with Cyborg's influence.
One idea could be Ruby adjusting to her new cyborg body and the enhanced abilities it gives her, like super - strength or advanced weaponry integration. Another could be her facing discrimination from some in the RWBY world who fear or mistrust cyborgs.
A plot could revolve around Raven getting injured during a battle. Cyborg takes it upon himself to nurse her back to health. As he tends to her, they have long conversations that lead to a deeper understanding of each other. This newfound closeness could then develop into a romantic relationship in the context of the fanfiction.
Perhaps a fanfiction where Cyborg teams up with a character from a different universe. They could learn from each other's skills and technology, like if he teamed up with a character from a more magic - based universe and had to combine their powers to defeat a common enemy. This would involve a lot of character development as they learn to work together.
Technology also plays a big role. Cyborg's cybernetic enhancements can be a source of fascination for Jinx, or they can be used in different ways during their adventures or confrontations. And Jinx's own unique weapons and her unpredictable use of them add to the mix.
The relationship can start with mutual distrust. For example, they meet in a battle situation where they are on opposite sides. But then, as they encounter each other more often, they begin to notice small things about each other. Cyborg might notice Jinx's insecurities behind her chaotic facade, and Jinx might see Cyborg's struggle with his dual nature (human and machine).
Another plot could be that Jinx has a secret mission to get close to Raven, but during the process, she actually starts to develop real feelings for Raven. Their kiss could be a turning point where Jinx decides to abandon her original mission and side with Raven instead. It could involve a lot of internal conflict for Jinx as she battles her old loyalties.
Maybe there's a story where an alien force infects Cyborg's systems and Beast Boy has to turn into various animals to find a cure. Along the way, they have deep conversations about what it means to be different. Cyborg feels like he's more machine than man at times, and Beast Boy, with his animal forms, also has an identity crisis. They help each other come to terms with who they are.