Another theme might be the isolation Kyle feels as a vampire in South Park. Since he's different now, he could be ostracized by some of the townspeople, which would lead to him having to deal with loneliness and finding his place in this new situation. This could also involve his relationships with his friends, like Stan, who might have a hard time accepting his transformation at first but then come to terms with it and support him.
One common theme could be friendship. Just like in the original show, a female Kyle might have interesting friendships with the other characters. Another theme could be her dealing with the wacky situations that South Park is known for.
One common theme is the clash between the normal South Park craziness and vampire lore. For example, vampires might have to deal with the town's strange politics or the boys' schemes. Another theme is the transformation of characters into vampires and how it changes their relationships. Like when a character becomes a vampire, their friends might be scared or try to 'cure' them.
In South Park Kyle x Butters fanfiction, a frequent theme is the contrast between their personalities. Kyle's more assertive nature and Butters' gentle side create interesting interactions. Also, the theme of acceptance is common. They accept each other's flaws and quirks, which is a nice aspect to explore in the fanfics.
One common theme is the exploration of their friendship. A kiss can be a turning point that makes them reevaluate how they feel about each other as friends. Another theme could be the reaction of the other characters in South Park. How would Cartman or Kenny react to Stan and Kyle kissing? It often creates a lot of comical or dramatic situations in the fanfiction.
One common theme could be friendship turning into something more. Since they are both characters from South Park, they might start as friends and then develop romantic feelings over time.
One common theme is friendship development. In a lot of these fanfictions, they start as just friends or even frenemies and then their relationship deepens. Another theme is loyalty. They often show how Kenny and Kyle are loyal to each other through different situations. And there's also the theme of self - discovery, as they learn more about themselves through their relationship with each other.
One common theme is the idea of redemption for Cartman. Since he's often the 'bad guy' in the show, in fanfiction, Kyle might be the one to help him see the light. Another theme is friendship in the face of differences. Despite their constant bickering, the fanfic may explore how they could actually be friends.
A prevalent theme is the exploration of their differences. Cartman is often mean - spirited and self - centered, while Kyle is more moral and sensitive. Fanfictions use this contrast to create interesting storylines, like how they can learn from each other. Also, the theme of redemption can be found. Cartman might be redeemed through his relationship with Kyle in some stories, showing that he can change for the better.
School - related themes are also quite common. Kyle is a student in South Park, so many fanfictions involve the reader and Kyle in school situations like dealing with bullies or working on a school project together. It's a way to show their relationship developing in a familiar setting. Additionally, moral and ethical debates can be a theme, as Kyle is often involved in such discussions in the show, and the fanfiction can bring the reader into those conversations as well.
Another theme is growth. As in, the growth of their relationship from just being friends to something more. Some fanfictions show how they start to realize their feelings for each other as they grow older and face different life situations.