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1. tart and bittersweet by rhyssands

   Fandoms: Undertale (Video Game)  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • M/M
   • Work in Progress

   29 Apr 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Sans/Sans (Undertale)
   • Sans (Undertale)
   • Killer Sans/XTale Sans | Cross (Undertale)
   • Killer Sans (Undertale)
   • Xtale Sans | Cross (Undertale)
   • POV Multiple
   • Explicit Sexual Content
   • Mildly Dubious Consent
   • Enthusiastic Consent
   • Dreamtale Nightmare Sans (Undertale)
   • Bad Sanses | Nightmare's Gang (Undertale)
   • Background Relationships
   • Dreamtale Nightmare Sans/Killer Sans (Undertale)
   • Fighting Kink
   • First Kiss
   • Casual Sex
   • Developing Relationship
   • Other Additional Tags to Be Added
   • Dreamtale Sans | Dream (Undertale)
   • Friendship
   • Complicated Relationships

   Summary

   Various snippets within the universe of (sweet and) sour that either I couldn't find a place for in the final draft of the fic, or were written afterwards.

   Series

   • Part 2 of sour appleverse

   Language:

   English

   Words:

   54,780

   Chapters:

   10/?

   Comments:

   50

   Kudos:

   294

   Bookmarks:

   41

   Hits:

   5,180