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1. Risk by papipachie

   Fandoms: Undertale (Video Game)  

   • Explicit
   • No Archive Warnings Apply
   • Other
   • Complete Work

   11 Feb 2018

   Tags

   • No Archive Warnings Apply
   • W. D. Gaster/Reader
   • W. D. Gaster
   • Reader
   • Toriel (Undertale)
   • Sans
   • Sex
   • risky sex
   • Biting
   • Swearing
   • Fantasizing
   • Gaster sans and papyrus are brothers
   • Blood
   • just a little
   • Dom and Sub undertones
   • Ecto-Penis (Undertale)
   • Ecto-Tongue (Undertale)
   • Magic
   • Ball Gags
   • Rough Sex
   • gaster is one tol boi
   • Light Masochism
   • Light Sadism
   • author is just really gross please pardon them
   • I tried to make reader gender neutral

   Summary

   Risky sex had always been a dirty little shadow in your heart. Luckily, you have a boyfriend who knows just how to exploit it. (Commission for peachtreez)

   Language:

   English

   Words:

   2,214

   Chapters:

   1/1

   Comments:

   3

   Kudos:

   180

   Bookmarks:

   8

   Hits:

   3,248