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1. Valentine Hearts - r by orphan_account, ShadowHunter1215, writingisnotmystrongpoint

   Fandoms: Undertale (Video Game)  

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

   17 Feb 2019

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Sans/Sans (Undertale)
   • Kustard
   • Sans/Red
   • Sans
   • Red
   • Papyrus
   • red's lil' valentine
   • did ya solve the equation in the title?
   • sans is in heat
   • valentine heats
   • ;)
   • Mating Cycles/In Heat
   • somewhat dubious consent
   • sans really wants it
   • red really wants ta give it
   • Praise Kink
   • TLC
   • Tender loving care
   • AWA
   • talk of feels
   • Aftercare
   • loves in the air
   • or loves in the bed
   • wink wonk
   • More tags to be added
   • More Chapters to Be Added
   • Ecto-Tongue (Undertale)
   • Ecto-Genitalia (Undertale)
   • ecto-dong
   • porn with plot ma dudes
   • Dick Suckin'
   • bubble baths
   • sweet moment
   • Kitchen Sex
   • Blowjobs
   • 69
   • hawt
   • more lovin'
   • going against the dating manual's steps
   • papyrus likes humming bonetrousle

   Summary

   Things are getting heated this valentine's day, now who is Red to not to give some love to his little sweetheart?

   Series

   • Part 2 of In the Holiday Mood

   Language:

   English

   Words:

   16,264

   Chapters:

   3/3

   Comments:

   28

   Kudos:

   164

   Bookmarks:

   22

   Hits:

   4,416