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1. ...Shit by xXConanXx

   Fandoms: Undertale (Video Game)  

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

   16 Dec 2019

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Spicykustard - Relationship
   • Underfell Papyrus - Character
   • Underfell Sans - Character
   • Undertale Sans - Character
   • Smut
   • Mating Cycles/In Heat
   • Undertale Skeletons in Heat
   • Ecto-Genitalia (Undertale)
   • first heat

   Summary

   When Sans gets his first heat, Edge and Red are glad to help.

   Series

   • Part 2 of I Don't Know What to Call This

   Language:

   English

   Words:

   1,801

   Chapters:

   1/1

   Comments:

   2

   Kudos:

   127

   Bookmarks:

   7

   Hits:

   2,809