These Undertale books that are here for a reason... I highly suggest you read some of them. It doesn't hurt to try. ;)
39 stories
Bottled Feelings  by thatcookiewriter
Bottled Feelings
thatcookiewriter
  • Reads 449
  • Votes 70
  • Parts 10
You and him were friends. You loved him. But he loved someone else. You kept your feelings to yourself. But You can't keep them bottled up forever. . . . . . . . What will you tell him?
Just A Normal Day... by thatcookiewriter
Just A Normal Day...
thatcookiewriter
  • Reads 41
  • Votes 7
  • Parts 2
What happens if your favorite video game comes to life? Will you meet the monsters you've always wanted?
I believe in you! by thatcookiewriter
I believe in you!
thatcookiewriter
  • Reads 82
  • Votes 13
  • Parts 4
You've killed him several of times, and yet....... why? Why did he make feel this way? He made you stop the genocide route. Question is; Did he love you back?
Castle's Pet (Bad Guys X Reader) by EmelinStriker
Castle's Pet (Bad Guys X Reader)
EmelinStriker
  • Reads 455,657
  • Votes 13,455
  • Parts 41
[Highest Rank: #1 in "sans"] [Second Highest Rank: #18 in "xreader"] (Girls only!) (Earlier updates are on my Quotev account!) WARNING: Profanity and Violence! You were a normal 17 years old girl from the Undertale universe, you fell down Mt. Ebott when you were 15 and you've lived in the Ruins with Toriel. Oddly enough, you haven't heard anything from (F/N) since you fell. And you knew he planned something. The Villains needed a new plan against the Star Sanses and some other heroes. What happens if a mysterious cloaked man tells them about about you?
Bone of Contention (Underswap Papyrus X Reader) by TheIndianaCrew
Bone of Contention (Underswap Papyrus X Reader)
TheIndianaCrew
  • Reads 373,161
  • Votes 14,729
  • Parts 62
Humanity is divided over one thing---the Monsters' reappearance. Some believe that they should stay aboveground, and others think that they should be sent back to where they came from. Then, there are those like you who don't quite know what to think yet. What will happen once you become acquainted with two skeleton brothers? Will you finally decide your standing on this issue? And is it possible that you will find love along the way? Thanks to crispicroissant on DeviantArt for letting me use their artwork as the cover of my story!
Hurting Heart (Dancetale!Sans x Paralyzed!Reader) by GamerQueen2002
Hurting Heart (Dancetale!Sans x Paralyzed!Reader)
GamerQueen2002
  • Reads 101,063
  • Votes 5,697
  • Parts 18
Ever since you were little, you dreamed of being on stage and dancing to your hearts content. You were determined to get where you wanted. All spot lights on you, people cheering and clapping as your feet swept across the stage. You were so close. 1 day away and you would have all of your dreams come true. Then everything was lost when the plane you was on crashed. You lost all feeling in your legs and lower body. So now, instead of living up to your dream you promised yourself would come true, you watch from a balcony. Instead of dancing like you wanted to, you got the complete opposite. Now all you can do is watch the monsters dance on what was to be your stage. ---- "You can dance. I can cry." "So let's make a tear jerking performance." ----
Embers [Grillby x Reader] by Sethirel
Embers [Grillby x Reader]
Sethirel
  • Reads 2,204
  • Votes 84
  • Parts 9
Two years after monsters return to the over world, you are walking down a street and stop outside a bar and grill. The soft warmth draws you in from the cold winter air outside. You enter and see several different monsters sitting at tables, and another standing behind the bar. You turn to leave, vowing never to stop in again. But events make that vow hard to keep... this is the new story for my Grillby x reader. I have nothing but good feelings for this one, and I hope you guys will enjoy it like you did the last one :>
A Trio of Misfits | Bittybones story by Sabinarius
A Trio of Misfits | Bittybones story
Sabinarius
  • Reads 316,430
  • Votes 10,511
  • Parts 31
Bitty! US pap x reader x Bitty! US sans Our two little bitties have been through a lot, so what happens when they meet a human that's hurting just as much as they are? DISCLAIMER: I DO NOT OWN BITTY BONES or the lovely art
Undertale AU X Reader Oneshots by TheIndianaCrew
Undertale AU X Reader Oneshots
TheIndianaCrew
  • Reads 16,549
  • Votes 475
  • Parts 15
Here is a collection of oneshots I write in between my other stories to practice some character's personalities. I will not be taking requests and there won't be any specific update schedules. Regardless, I really hope you enjoy these oneshots!
The War Amongst Us (W.D. Gaster X Reader) by TheIndianaCrew
The War Amongst Us (W.D. Gaster X Reader)
TheIndianaCrew
  • Reads 65,151
  • Votes 3,019
  • Parts 24
(Y\N) is a young female spy and soldier fighting in the War of Humans and Monsters. She is fighting on the humans' side of the war until a turn of events when she becomes apprehended by the enemy. What will happen when a young monster scientist tries to change her views? Thanks to Itachei on Deviantart for letting me use their artwork as the cover!