One common theme is the power struggle. Since both Elsa and Pitch have strong and distinct powers, many fanfictions explore how they deal with each other's powers. For example, Elsa's ice powers might be a counter to Pitch's nightmares or vice versa.
The theme of the outcast also pops up a lot. Elsa has been an outcast in her own world due to her powers, and Pitch is, by nature, an outcast in the world of good. Fanfictions often explore how they bond over this shared feeling of being different and misunderstood.
Another theme is redemption. Pitch is often seen as a villain, and in some fanfictions, Elsa becomes a catalyst for his possible redemption. Their relationship can be a journey of Pitch becoming a better 'person' in a sense.
Well, in many 'Elsa x Pitch Black' fanfictions, the theme of transformation is quite common. Elsa might transform Pitch Black's view of the world, and he might in turn help her embrace a different side of herself. There's also the theme of the outcast. Both characters have elements of being outcasts in their original stories, and in the fanfiction, they might find solace in each other's company, creating a bond based on that shared experience.
One common theme is the idea of redemption. Pitch is often seen as a villain, and in these fics, his relationship with Elsa can lead to him finding a new path. For example, Elsa's purity might inspire him to change.
Another theme is the idea of isolation. Elsa has been isolated because of her powers, and Pitch is often seen as an outcast in the world of good. Fanfictions may explore how they deal with their loneliness and whether they can find understanding in each other.
Well, transformation is also a common theme. Pitch might start out as his usual menacing self but through his interactions with Sandy, he could transform into a more complex and sympathetic character. Also, the theme of discovery is often present. They might discover new aspects of each other's personalities or new abilities within themselves as a result of their relationship in the fanfiction.
One common theme is the battle between light and dark. Jack, often representing light or good, and Pitch, representing darkness, are pitted against each other, but then there's a development where they start to understand each other more.
Another theme is the power of forgiveness. In some stories, Pitch has done bad things in the past, and Jack has to decide whether to forgive him. This theme adds depth to their relationship and shows the characters' growth.
One common theme is self - discovery. The OC often helps Elsa to further understand herself and her powers. Another theme is friendship. They start as strangers and develop a deep bond. For example, in many stories, the OC might be the first person to truly accept Elsa for who she is.
A common theme is the exploration of the dark and mysterious nature of Pitch. Writers often use this to create a sense of intrigue around the relationship with the reader.
Common themes in Pitch x Jack yaoi fanfiction often include power dynamics. Since Pitch has his own dark powers and Jack has his ice powers, how they interact with each other in terms of power can be interesting. There might also be themes related to isolation. Both characters may have felt alone in their own ways before finding each other, and the fanfiction could explore how their relationship helps them feel less isolated and more connected to the world around them.
A prevalent theme is the power struggle. Given their different natures, they often fight for influence over the world or over certain characters. Also, friendship or an unexpected bond can be a theme. As they interact more, a sense of camaraderie might develop despite their initial differences. This can make for some interesting character development in the fanfiction.