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1. Swapfell exhibitionism with beacoup exposition by Tically

   Fandoms: Undertale (Video Game)  

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

   03 May 2021

   Tags

   • Creator Chose Not To Use Archive Warnings
   • swapfellcest - Freeform
   • Swapfell Papyrus/Swapfell Sans (Undertale)
   • Exhibitionism
   • Mating Cycles/In Heat
   • Incest

   Summary

   Pup goes into heat, but it’s not going to stop Sans from taking him to work.

   Series

   • Part 4 of That's Undertail, baby!

   Language:

   English

   Words:

   2,151

   Chapters:

   1/1

   Kudos:

   39

   Bookmarks:

   2

   Hits:

   703