Well, without more context about what 'lust x dust' actually means in the fanfic world, it's hard to point out specific popular stories. It could be a very niche or newly created concept. You might try searching on dedicated fanfic communities where people might discuss and share such works.
To start a 'lust x dust fanfic', you need to have a clear idea of the relationship between 'lust' and 'dust'. If they are symbolic, figure out how they interact. Begin with creating interesting characters that are related to these concepts. For example, if 'lust' is a character, describe their personality traits. Start writing simple scenes that introduce the main ideas and build from there. You can also draw inspiration from other fanfics or the original work that might have inspired this concept.
We should stay away from 'fell x lust fanfic' as it may not conform to ethical and moral standards. Instead, we can focus on fanfics with themes like friendship, heroism, and self - discovery which are more positive and inspiring.
The theme of transformation is also present. Lust can trigger a transformation in a character, either physically or psychologically, which then ties into the horror aspect. For instance, a character's lust for something forbidden causes them to slowly change into a more monstrous form as the story progresses.
One popular 'dust sans x blueberry fanfic' is 'The Meeting of Two Souls'. It has an interesting plot that delves into how their different personalities interact. The story builds a unique world for them and has some really touching moments of friendship development.
Adventure might also be a common theme. Maybe they go on some exciting journey together, facing challenges and growing as characters during the process. Another possible theme is self - discovery. As they interact, they could learn more about themselves, their strengths and weaknesses.
One possible common theme could be discovery. If 'dust' and 'fidget' are new or unique entities, the fanfic might explore their discovery of the world around them or of each other's capabilities. Another theme could be conflict, especially if they come from different backgrounds or have different goals within the story.
One characteristic could be the unique blend of the horror and lust elements from the two 'sans' characters. It might play with the contrast between the spooky or menacing nature of horror sans and the more sensuous or alluring aspects of lust sans.
One common theme is the clash of personalities. Alastor is very different from Angel Dust, and this often leads to interesting dynamics in the fics. Another theme is the idea of redemption or change, where they might influence each other to become better or worse.
A great 'dust sans x blueberry fanfic' is interesting because of the potential for unique storylines. For example, they could be on a quest together, or they might have to deal with some sort of threat in their world. The way their different powers and abilities combine or contrast can also add a lot of depth to the story. Also, the exploration of their friendship or other relationships can be very heart - warming or intense, depending on how the author writes it.