Love can be a theme as well. Maybe he has a relationship that is affected by his new state. For example, his partner might be scared of him at first or he might be worried about hurting them. These themes all work together to create interesting and complex stories in the 'SVTFOE Vampire Marco' fanfiction genre.
Power is also a big theme. His vampire powers bring new abilities and responsibilities. He might struggle with controlling them or using them for good. There's also the theme of secrecy. Since being a vampire is not a normal thing in the SVTFOE world, he has to keep it a secret, which adds a lot of tension to the stories.
One common theme is the exploration of their different natures. Marco is often seen as the more normal one compared to Eclipsa's otherworldly and powerful self. Another theme is friendship. They come from different backgrounds, so how they become friends or more is a big part of these fanfictions. Also, there's the theme of discovery. Discovering each other's worlds, secrets, and powers.
One common theme is probably adventure. Since the original show has a lot of adventure elements, the fanfiction might continue that trend with Marco and Kelly. Another could be love and relationship growth, as fans are interested in seeing how their relationship evolves.
Another theme is self - discovery. Both Tom and Marco are on a journey to figure out who they are. In the context of their relationship, they help each other in this process. Like, Tom might help Marco embrace his more adventurous side, while Marco helps Tom control his temper.
The theme of self - discovery is also quite common. As Star and Marco are together, they learn more about themselves. Also, the idea of facing challenges as a team is prevalent. They might face an evil force or a difficult situation in the fanfic, and through working together, they overcome it. Like in some fanfics where they have to save their home from a great danger.
One popular 'SVTFOE Vampire Marco' fanfiction is 'The Vampire's Mark'. It has an interesting plot where Marco discovers his vampire side and has to deal with the challenges that come with it in the SVTFOE universe.
Another theme could be rivalry. They might be written as rivals for a certain thing, like Star's attention in a non - romantic way. They compete with each other in different scenarios, which can create some exciting storylines. Also, there could be stories about them teaming up to face a common enemy. This would involve them putting aside their differences and using their combined skills to overcome difficulties, which can be a really engaging theme in fanfics.
Well, in SvTFOE Marco x Kelly fanfiction, often it explores their relationship in different ways. It might show how they interact in various situations that are not fully explored in the original series. Maybe it focuses on their shared adventures and how they grow closer through those experiences.
Power is a common theme. Since Toffee has a lot of power and a complex relationship with it, many fanfictions explore how he uses or misuses his power. For example, some stories show him trying to regain his lost power in different ways.
One great 'svtfoe star and marco fanfiction' story could be those that explore their adventures in different dimensions. For example, a story where they accidentally end up in a dimension full of musical creatures and have to use their friendship and unique skills to find their way back home.
One common theme is fixing past mistakes. The characters often go back in time to correct something that went wrong in the original storyline.