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1. But it's not like Christmas at all by Ultimate_Sugar

   Fandoms: Undertale (Video Game)  

   • Explicit
   • Rape/Non-Con, Underage Sex
   • M/M
   • Complete Work

   24 Dec 2025

   Tags

   • Rape/Non-Con
   • Underage Sex
   • Papyrus/Sans (Undertale)
   • Papyrus (Undertale)
   • Sans (Undertale)
   • W. D. Gaster
   • W. D. Gaster is Papyrus and Sans' Parent
   • Big Brother Sans (Undertale)
   • Younger Brother Papyrus (Undertale)
   • Teenage Sans (Undertale)
   • Child Papyrus (Undertale)
   • Incest
   • Sibling Incest
   • Sexual Abuse
   • Non-Consensual Kissing
   • Non-Consensual Touching
   • Oral Sex
   • Ecto-Genitalia (Undertale)

   Summary

   Sans was grinning, like always, but there was an odd gleam in his eyes, a certain something in his smile that Papyrus couldn’t name. “I actually…”

   Papyrus edged closer, cocking his head at the tone of Sans’s voice.

   “...Have one more present to give you.”

   Or:

   Sans gives Papyrus a special gift.

   Language:

   English

   Words:

   6,379

   Chapters:

   1/1

   Kudos:

   3

   Bookmarks:

   1

   Hits:

   62