undertale
87 stories
Lost Souls (Sans x Reader) by Styla_Mythic
Styla_Mythic
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    Parts 17
While Frisk is trying to maintain peace between monsters and humans, Sans finds himself tangled up with one the has a dark past and a hate filled grudge against all monsters. While she seemed like a vile human...Sans found himself seeking answers to why she hated everyone. Is risking his life for this girl worth it?
Is Red for Blood or Love? (Fell Sans x Reader) by Styla_Mythic
Styla_Mythic
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    Parts 12
This is a female reader x fell sans. (Y/N) was a kind girl. She loved her family and her friends. One day something went wrong and she fell into the Underground from the top of Mt.Ebott. After a weird run in with a talking flower, a killer goat lady and other weird deadly monsters, she finds herself in one of her worst situations yet. But is this new monster really a foe?
A Skeleton's Hope (Undertale AU's x Reader) DISCONTINUED/BEING REWRITTEN by Just_Vibing_Man
Just_Vibing_Man
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    Parts 42
Sans and Papyrus were your best friends until randomly they just cut off all contact with you. This went for everyone else in your life so it didn't really hurt that much when they did. The only question is why they didn't do it sooner. So after two years of loneliness, what was originally a drop off turned into a hospital trip, a broken leg, and your once best friends now homeless. What should be happening is them owing you a thanks for rescuing their so called, "Cousins" from a fire. Yet here you are offering them a place to stay, at your big ass mansion for the next eight months. So now you live with the people who abandoned you, along with their so called "family" who by the way don't really like you because you're a mage, but it's barely relevant to the plot so - What could possibly go wrong? Cover by EverLovingCheeseCake
Always and Forever (Undertale AU's x Reader) by Just_Vibing_Man
Just_Vibing_Man
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    Parts 3
Being a member of society is hard. Being a member of the Royal Guard is harder. You've known this for a while now, but this listen is enforced ever more when you are assigned to be the only bodyguard for the Kingdoms Royal Negotiator. By the way, what kind of name is Blueberry? When the job is done, you think that's it. You'll never see him again. Sure you work with his family but there's no way he would go out of his way to see you - That is until he hires you as his bodyguard full time. You aren't a fan of this change, as it just puts more work on you. You never asked for it but it's not really your place to complain. You made a promise to you job, to yourself, and you'd rather die then break it. If he wants you to protect him, fine. You will. If you have to put up with his annoying ass "cousins" so be it. If you have to die, you will if that insures his safety. You will keep him same. Always and Forever. (Ignore the cover, I'm so lazy to change it.)
Keeping Together [A Kustard Fanfiction] [DISCONTINUED AND WOULD BE REWRITTEN] by QuxxnFlixx
QuxxnFlixx
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    Parts 8
Comic and Red have just broke due to Comic finding out that Red actually likes Blue instead and has been using him as replacement of him. Comic is angry and devastated that Red had cheated on his feeling towards him but hides it in his soul. But even through Red had cheated on his feelings, Comic still loves him and keeps a secret about it so that he won't ruin Red and Blue's relationship. He always says that he's fine after Red's breakout with him but deep inside he's not. Would they be together again?
Anything Can Happen (Sans x Reader) by ForgottenMatter
ForgottenMatter
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    Parts 15
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/
Punmaster's crush (sans x reader) by dupranae
dupranae
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    Parts 36
Monsters have just taken to the surface. They settle in well, and you decide to lean a bit more. You find yourself at Mt. Ebbot, and fall through the now open 'barrier'.
Falling For... A Skeleton? (Sans x Reader) by UTUnknown
UTUnknown
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    Parts 9
You ran away from your abusive boyfriend. As a result, you climbed a mountain and fell inside. You wake up and meet a human who introduces you to many monsters. You become friends with them all and decide to stay underground with them. Read to find out the rest ;p
C A N C E L { Sans X Reader } by Too_Many_Feelz
Too_Many_Feelz
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    Parts 27
How many times have you seen this world, how many resets does it take for you to give up hope? Does anything even matter after all this, does trying do anything? Will the struggle help at all, can I even believe in anyone anymore? The only thing keeping me going now is my resentment.
Can You Hear Me? *REWRITE* by MelodyofChaos
MelodyofChaos
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    Parts 17
You were in your element when you stood on a stage. You could confidently sing the melody, serenely take the harmony, basking in the attention and relishing in the feel of your heels hitting the stage and the strain of your vocal cords. You'd been singing for fours years, but the best career decision you'd made was joining up with Mettaton for several duets. You often performed with the monster, and he'd become your best friend, but despite his constant pestering you had yet to meet the rest of his friends. *Authors Note* I originally started this story in 2016, but never finished. I've recently regained my writing mojo, and decided to rewrite, edit and finish Can You Hear Me?.