Well, in such a fanfiction, the relationship between Underlust Papyrus and Underlust Mettaton could be complex. It might involve a lot of flirtatious interactions and unique emotional bonds. Maybe Papyrus shows his charm in a more alluring way compared to his normal counterpart, and Mettaton could be even more flamboyant in this Underlust setting.
One key theme could be allure. In the Underlust AU, both Papyrus and Mettaton are likely to exude a certain charm that drives the story. Another theme might be the exploration of relationships in a more sensual context compared to the original Undertale universe.
Sure. It can add depth to the Undertale universe in terms of character relationships. If done tastefully, it can show different sides of the characters, like their vulnerability in the face of love or desire. It can also spark discussions among fans about healthy relationships, boundaries, and how to handle emotions. Additionally, it can be a form of self - expression for fans who have their own ideas about how the characters should interact in a more romantic or lust - related context, which can contribute to the overall richness of the fan community.
Underlust fanfiction is often based on the Undertale game universe but with a focus on more 'lustful' or amorous themes. However, it's important to note that a lot of such fanfictions may contain inappropriate or adult - oriented content. In more general and appropriate interpretations, it could explore relationships between characters in a more romantic or flirty way within the unique setting of the Undertale world.
I'm sorry, without any knowledge of the 'underlust full story', it's impossible for me to name the main characters. You could try to find relevant information on official platforms or fan communities.
One common theme could be the exploration of an unlikely relationship. Given their different natures, the fanfictions might focus on how they overcome differences.
One common theme is the exploration of their relationship in the Underlust AU context. Since it's an AU with a focus on different interpretations of the characters' personalities and relationships, fanfictions often delve into how Papyrus and Sans interact with each other romantically or platonically in this altered world.
There could be other characters who are trying to stop Chara from eating the human. Maybe a group of friends or family of the human, or some sort of protectors in the world of the fanfic. They would play a crucial role in trying to prevent the dark act from happening.