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  1. Are We Human, Does it Matter? by

    Fandoms: Undertale (Video Game)  

    13 Oct 2026

    Tags
    Summary

    Night and Mare are two very different entities. One born from corruption and the other born from the tree of feelings, they share one body, one mind. They are the same person deep down and they accept this fact, they are one. But as a spell separates them from each other, they flail to become a single being again, resorting to some questionable methods.

    Night just wants to feel Mare inside him, and Mare just wants to be inside Night once more.

    Prompt: Selfcest

    Series
    Language:
    English
    Words:
    1,395
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    11
    Hits:
    101