Good little girl, Bad little boy (Underfell!Sans X reader)

Good little girl, Bad little boy (Underfell!Sans X reader)

41.8K Reads 1.2K Votes 4 Part Story
Issy Hoobins By Issyb00h Updated Feb 01, 2016

It started only as an old tale someone told you, about Mt.Ebott, about how humans had locked evil souls under the ground that humans lived with a magical barrier, and missing childrens that went there after the big war. A kid with determination to be their friends, and a girl with resposability to the task. Well guess the countless times you wished your life to have more action were listened.

Cover image by m1nktank.

  • flowey
  • frisk
  • game
  • indie
  • ivesined
  • papyrus
  • reader
  • readerinseret
  • sans
  • sansxreader
  • sins
  • spoilers
  • toriel
  • trash
  • underfell
  • undertale
  • willaddmore
KawaiiUmberon KawaiiUmberon Oct 27, 2017
*hears a running figure* .....WTF NOPE *runs like her life is counting on her*
KawaiiUmberon KawaiiUmberon Oct 27, 2017
*forgets the flashlight* Oh Shoot...Welp To late to regret now*continues running*
Gbunny93 Gbunny93 May 18, 2017
"That plus the want to him to be friends with monsters"
                              ... My brain hurts
STOP SAYING THAT WORD PLEASE 😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭
Gbunny93 Gbunny93 May 18, 2017
What is this "Responsibly" that you speak of?
                              
                              *Someone explains it*
                              EWWWWWWWWWW! GET IT AWAY FROM ME!
My gut told me to look up lemons
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              This is why I trust my gut so much