One common theme is self - discovery. The OC often helps Octavia discover new aspects of herself. Another is friendship. They form a unique bond that can be very heartwarming. For example, in some fics, they learn to trust each other and rely on one another in difficult situations.
The theme of change is prevalent. Octavia's life changes with the entry of the OC. It could be a change in her beliefs, her daily routine, or her relationships with others. Also, the theme of redemption can be there. If Octavia has made mistakes in the past, the OC might play a role in her redemption process, and vice versa for the OC if they have their own past to deal with.
One common theme is friendship. They might start as just friends but develop deeper feelings over time. Another could be musical collaboration, since both are related to music in the My Little Pony world.
Adventure is another theme. They could go on magical adventures together, like exploring new lands or solving mysteries. In these fanfics, their unique personalities - Vinyl's carefree nature and Octavia's more refined demeanor - play off each other during their escapades.
One common theme could be friendship. Even in a human - setting, their relationship might be explored in terms of a deep and abiding friendship. They could support each other through various life events.
Friendship is also a big theme. Octavia's relationships with other MLP characters are often explored. For example, how she bonds with other musicians or how she overcomes differences with non - musical ponies through friendship.
One common theme is friendship. Since they are from different 'worlds' (in the context of their original stories), a lot of fanfictions focus on how they overcome their differences to become friends.
One common theme is friendship. They are often shown supporting and caring for each other. Another theme is music, as both characters are deeply involved with music in the My Little Pony universe.
One common theme is discovery. The OC often discovers the magical world of Camelot and Merlin's true nature. For example, in many fics, the OC stumbles upon Merlin using magic when no one else is around.
One common theme is friendship. Since Momonga is often in a new and strange world, having an OC as a friend can add a lot of depth to the story. Another theme is adventure. The OC usually joins Momonga on his various adventures in the new world.
One frequent theme in 'Obito x OC fanfic' is the exploration of power and how it affects relationships. The OC might have unique powers or abilities that interact with Obito's. For example, if the OC has a power related to time - travel, it can create an interesting dynamic with Obito's own powers. Also, the theme of loyalty is often explored. As Obito has had issues with loyalty in the original story, the fic might show how the OC helps him regain his sense of loyalty or how they are loyal to each other in difficult situations. It can be really engaging to see how these themes play out in different fics.
Friendship is also a big theme. The oc and Nami start off as strangers and gradually become good friends, sharing secrets, helping each other out in tough situations. For example, in many fanfics, the oc might help Nami when she's in trouble with other pirates or facing difficulties in her map - making. And sometimes this friendship can develop into a romantic relationship as the story progresses.