A common theme is adventure. Since Generator Rex is often involved in action - packed situations, the fem oc usually joins him in these adventures, whether it's fighting against EVOs or uncovering some big conspiracy.
One great place to find fem oc x Generator Rex fanfiction is Archive of Our Own (AO3). There are numerous stories there that explore different relationships and adventures in this fandom. Just search for the relevant tags and you'll be presented with a variety of options.
To write an 'Oc x Generator Rex' fanfiction, you have to understand the world of Generator Rex thoroughly. Research the existing characters, their relationships, and the overall story arc. For your OC, give them a clear motivation. Why do they want to be around Rex? Is it for protection, or do they have their own agenda? As for the relationship between the OC and Rex, show how they influence each other. Maybe the OC teaches Rex something new about the world he lives in, or Rex shows the OC how to be brave in the face of danger. Write in a way that keeps the readers engaged, with cliffhangers and interesting twists in the story.
One common theme is adventure. The OC often joins Rex on his various missions, facing challenges together. Another theme is romance. Since it's rex x oc, there's usually a love story developing between them. It could be a slow - burn romance or a more immediate attraction.
One great 'Oc x Generator Rex' fanfiction is 'Rex and the New Ally'. It has an interesting plot where an OC with unique powers teams up with Rex. The story does a good job of integrating the OC into the Generator Rex universe, with exciting action scenes and some character development for both Rex and the OC.
Another theme could be the idea of friendship across different universes. Characters from both series might form bonds and work together. Also, there's often the theme of power. How do Rex's powers compare to the magic in Harry Potter? And how can they be combined or used against common enemies? It's quite fascinating to explore in these fanfictions.
One possible fanfiction could be about Rex's adventures in a new, uncharted area where he discovers a strange new type of E.V.O. He has to use his powers in creative ways to deal with it and learn more about this new threat or ally.
One idea could be a crossover where Generator Rex's nanites interact with the X - Men's mutant powers in unexpected ways. Maybe the nanites start to adapt and mimic some of the mutant abilities, causing chaos and confusion among both groups.
One idea could be that Naruto and Rex meet in a dimension where their worlds collide. Naruto's chakra powers and Rex's nanite abilities could create some really interesting battle scenes as they team up against a common enemy, like an evil organization that wants to control both their worlds.
One popular trope in Generator Rex OC fanfiction is the 'fish - out - of - water' scenario. For example, an OC from a peaceful village suddenly thrown into the chaos of the EVO - filled world. Another is the 'power - up' trope, where the OC discovers new and stronger abilities over time. A third popular trope is the 'redemption' trope, especially if the OC starts off on the wrong side, like being part of a group that wants to use EVOs for evil, but then has a change of heart.
One common theme is friendship. The oc and fem Naruto often start as friends and then their relationship may or may not develop into something more. Another theme is self - discovery. Both characters usually learn more about themselves through their interactions.