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   #legalizeit by martinyi

   Fandoms: Undertale (Video Game)  

   • Mature
   • No Archive Warnings Apply
   • M/M
   • Complete Work

   19 Jul 2026

   Tags

   • No Archive Warnings Apply
   • Sans/Sans (Undertale)
   • UnderFell Sans/UnderTale Sans
   • Kustard
   • Sans (Undertale)
   • Underfell Sans - Character
   • i think ink is referenced in here one time maybe
   • Bongs
   • Shotgunning
   • Casual Sex
   • At first anyways
   • Friends with Benefits to Lovers
   • i guess
   • theyre pretty chill about getting together im not gonna lie
   • Marijuana
   • im high as shit rn and so are they ehhahykwim
   • Multiple Sex Positions
   • 69 (Sex Position)
   • for like a few seconds
   • yall gotta kill me
   • I Wrote This Instead of Sleeping
   • I Was High When I Wrote This
   • Teasing
   • Pillow Princess Sans
   • what is my life
   • I Don't Even Know
   • Getting Together
   • but like not really
   • i dont know anything anymore
   • Foot Jobs
   • for like a second.......
   • Banter
   • Bad Puns
   • reds a hypocrite he only likes his own jokes
   • Ecto-Genitalia (Undertale)
   • Ecto-Body (Undertale)
   • Ecto-Tongue (Undertale)
   • ecto everything whatever
   • Pussy Spanking
   • Brat Taming
   • i guuueessss
   • sans is kind of a brat in this right
   • Sans/Underfell Sans (Undertale)

   Summary

   Sans and his alternate, edgier version of himself like to cool down from bad days and get high together. Usually, it resorts to casual sex between the two of them. This time around, a few labels are put up and some attitudes are dragged through the mud.

   Series

   • Part 1 of Song That Might Play When You Fuck Sans ᐠ( ᐢ ᵕ ᐢ )ᐟ

   Language:

   English

   Words:

   6,066

   Chapters:

   1/1

   Comments:

   7

   Kudos:

   30

   Bookmarks:

   4

   Hits:

   406

   Bookmarked by mlaiNNx

   27 Sep 2026