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1. SKELLIES GONE MAD [Yandere Collection] by machete_e23

   Fandoms: Undertale (Video Game)  

   • Mature
   • Creator Chose Not To Use Archive Warnings
   • F/M, Gen, M/M, Multi, Other
   • Work in Progress

   26 Aug 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Sans (Undertale)/Reader
   • Papyrus (Undertale)/Reader
   • Sans (Undertale)
   • Sans Ensemble (Undertale)
   • Papyrus (Undertale)
   • Papyrus Ensemble (Undertale)
   • Yandere
   • Yandere Sans (Undertale)
   • Yandere Papyrus (Undertale)
   • Possessive Behavior
   • Obsessive Behavior
   • Non-Consensual Touching
   • Stalking
   • Kidnapping
   • Toxic mind set
   • Implied Sexual Content
   • Unhealthy Relationships
   • Creepy Sans (Undertale)
   • Possessive Sans (Undertale)
   • Big Sans (Undertale)
   • Bara Sans (Undertale)
   • Gender-Neutral Reader-Insert
   • Gender-Neutral Pronouns
   • Underswap Papyrus (Undertale)
   • Mobfell Sans (Undertale)
   • Non-Consensual Kissing
   • Non-Consensual Picture Taking

   Summary

   A collection of my Yandere one-shots and drabbles featuring Sans, Papyrus and their alternative selves. Beware of the content warnings and please do stay safe.

   [GENDER-NEUTRAL! READER]

   (REQUESTS ARE OPEN!!)

   Language:

   English

   Words:

   18,476

   Chapters:

   4/?

   Comments:

   19

   Kudos:

   51

   Bookmarks:

   8

   Hits:

   556