Undertale related
38 stories
The Run Away (Underfell!Sans x Abused Reader) DISCONTINUED  by lonely_potato_person
lonely_potato_person
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Hey guys! Soooo...This is my first book and yea I know it's gunna be shit but hopefully I'll get better. This is an Underfell!Sans x reader book, and you're a girl just so ya know. Sorry dude friends. Just a warning it will have abusive things, and sad depressing things. It'll also have bad language aka cursing and stuff.
The Underground's Bad Boy (Underfell Sans x Reader) by XxxMJCupcakexxX
XxxMJCupcakexxX
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Y/n was a girl that had only a few problems in life but they affected her daily. She was bullied in school, and had an abusive father that she had to come home to every day. Her mother showed her the good in the world. Other than that, all she knew was pain, but she still treated everyone equally with kindness, she had hope that they could change. One day something just broke within her and she decided she wanted to leave and search for a better life. She somehow ended up at Mt. Ebott, and little did she know this would change her life. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This is a co-op story. My partner in crime is the bootiful, and magnificent @ThatGirlAariona So pay credit, where credit is due, and give her a follow! The art used in this story does not belong to me. Read and Enjoy <3
Legendary {{ PokeTale!Sans X Trainer!Reader }} by Undertale_Shipper_
Undertale_Shipper_
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You're a trainer and wants to become a pokemon master. You have several legendary pokemon. What happens when you meet a certain skeleton? Will you invite him to journey with you or will you venture alone? We'll see. Hey! So, this is my first PokeTale story so, it might be bad. I'm sorry if it is bad. But anyways, enjoy!
The Nine Tales Of Alolan III Poketale!Sans X Alolan!Vulpix!Reader III by Kirbycake321
Kirbycake321
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There was only one hybrid in the Pokemon world. She has the ability to change from an Alolan vulpix to a human with a fluffy white tail, fox ears, and her Pokemon moves And back. She continues to avoid humans and takes care of many vulpixes along with an Alolan ninetales. One day while protecting her mother, she was caught by a skeleton trainer. She kept her identity of a hybrid a secret and slowly trusted him. Now what?
A "Human" That Likes A Skeleton by Krayzee_Tree
Krayzee_Tree
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Began on: August 24, 2016 Completed on: August 24, 2021 The Underground Barrier has been broken for three years, and you're a girl with a secret, one day you're walking back home to your apartment after a grocery trip, when you bump into someone, little do you know that someone had a role to play in your near future... THERE IS ABSOLUTELY NO SWEARING OR LEMONS IN THIS FANFIC!!!! Highest ranks: #1 in Underground #1 in SansxReader #1 in NoSwears #1 in NoLemons #1 in Sans #309 in Fanfiction Has some re-writing... But then I gave up so.. sorry xD
Anything Can Happen (Sans x Reader) by ForgottenMatter
ForgottenMatter
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An unexpected turn of events lands you in the depths of Mt. Ebott. Upon waking up, you found yourself with a interesting and skeletal duo. {Completed} Thank you so much for 10k+ reads and 300+ votes! \o/
Eyes of Stone (Gaster!Sans x Reader) by pst_writes
pst_writes
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His eyes were like stone, cold and dead against the blank snow. Hers were like melting frost, swimming in glacial lakes like an undisturbed winter. It was journey of finding and losing her, an adventure of losing and regaining him. A trial to see if their love was truly set in stone. (SEQUEL TO 'EYES OF FIRE') (FANFICTION BASED ON VIDEO GAME 'UNDERTALE')
Underrising Love (Sans X Reader) by Styla_Mythic
Styla_Mythic
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    Parts 32
Monsters have returned! (Y/N) is waisting no time to find out more! After running into a hyper skeleton twice you slowly start meeting and growing attached to a new group of monster friends. One however is more likeable then you thought. (This is Sans x Female reader)
Eyes of Fire (Gaster!Sans x Reader) by pst_writes
pst_writes
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(FAN FICTION BASED OFF OF VIDEO GAME 'UNDERTALE') His eyes were like fire. Amber. Dangerous. But they intrigued me. The flames of his soul danced and encased my heart. It was needless to say that I didn't mind. (COMPLETED)
A little chilled to the bone. (Sans x Reader) by Vappy_Lord
Vappy_Lord
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After falling down Mt.Ebbot, you find yourself in Snowdin, a small town in the UNDERGROUND where two skeleton brothers live, Sans and Papyrus. These brothers are vary quirky, one being a Spaghetti-fanatic with a dream to be in the Royal gaurd, and the other a calm, laidback enigma who can't stop cracking puns. But, what happens when you get closer to the brothers? Characters belong to Toby Fox. very mild spoilers for the first part of Undertakes Pacifist run. (everything from The date with papyrus and behind)