Best Papyrus/Reader Alternate Universe (AU) Fanfics

by absurdmagewrites

Sometimes life throws you a curveball. For you, your curveball was going to bed looking like a human, and waking up looking like a monster. A skeleton monster to be precise. With the barrier breaking, a large surge of magic descended on the town you live in, and transformed you overnight. Unsure wha

by BattleMaiden13

You have no idea when the world went to shit, but your pretty sure it was either when the dead came back to life and chowing down on anything with a pulse OR it was when you flunked out of college. Either way the world sucks now. You aren't entirely sure how you've survived this long either but your

by Asaila

You only wanted a normal life. Then you met them. Sanses and Papyruses from different worlds, each carrying their own past, their own wounds, and their own ways of becoming part of your life. For a while, it almost felt simple. Then the timeline broke. Now everything has started over. They don’t rem

by KittyCatPaw11

There are a number of little ideas within my head—or strikes of inspiration from fellow Undertale creators—that I'd love to write about! But they need a home... Welcome to Reader x Everyone in the Multiverse! I don't have a schedule, but I try to post often! I hope you enjoy these stories :3c

by B3_l

[Honestly.. After everything you've been through you didn't expect to find yourself here, in the middle of a fight between two men you recognized too much to be normal, with your unconscious husband in your arms having a near death grip on both newborns while you could at least stand without feeling

by Anonymous

Papyrus thinks he’s being kind. He thinks that by ending your brief, beautiful "situationship," he’s sparing you from the wreckage of his own guarded soul and the threat of Chara's power. He’s trying to prevent a loss that hasn't happened yet.Now, with three other timelines crashing into theirs, the

by pessimistic_frog

Roman is your average college student. Overworked and underfucked. Too little sleep and too much caffeine. However, she starts to find that her serious lack of sleep is leading to some crazy dreams. Dreams in which she's now a skeleton, with three alternates, and a buncha other skeletons that seem h

by this_is_my_alt

A misunderstanding lands you in a meeting of monsters and fetishists. From the chaos you find yourself in the dynamic company of a kinky Mutt, gasterblaster! Sans, and a cat-ear wearing Axe.Deals are made. Boundaries are broken. You become thoroughly entangled in this group of horny skeletons with v

by Quinme

One moment you were on the call with your friend, the next you are in a shady dark alley, pressed by... a crocodile in fedora? Life is confusing, and you have no damn idea where you even are and what will come next.

by Ichigh0st

It’s fun being dead.Or undead, rather, as your sister likes to correct you. Your dear sister is the kind of person who took her dark arts very seriously. Or, her necromancy, rather. You’ll be the first to admit, you don’t know a lot about her school of magic. She doesn’t know much about yours either

by callmealoser

You’re a 23 year old who’s been living in a mansion you inherited from your Grandmother for a couple of years now. Your days consist mostly of chain smoking, drinking, sleeping, and scrolling. The house is huge, dark, and lonely. One day, out of pure boredom (and NOT loneliness) you post an ad looki

by freshiewrites

You live a somewhat busy, somewhat plain life, trying to work your way up in the culinary world to become a well known chef in your own right. Somehow you've gotten thrown into the weird world of these skeleton men that all... seem to have an interest in you.

by WillowSparrow

After living in the Underfell universe for all your life, you're suddenly thrown into a mansion with several other skeletons who all seem to know you.Or, well, a different version of you.And many of them seem to be dating Lydia--a girl whom seems to ruin everything she touches.But these skeletons se

by AleonaIceCream

You recently moved into this mansion, and a few days after getting all the stuff over, you have a thirst for waffles, but you don’t have sugar at home! Unable to wait, you walk to the neighboring mansion a couple minutes away, and find some things (more like a couple someones) that shake up your new

by WillowSparrow

Your best friend Sophia has been going on and on about this stupid romance game featuring skeletons and yanderes. You thought it was stupid. Well, until you were literally transported into it, but not as the protagonist. As the villainess.

by Deev_213

you were 16 when the barrier broke, freeing all the monster. you watched it happen on the news with your parents. you were in awe you've always loved magic and myths and everything of the sort, so when this happened you just new you had to befriend a monster and where better to do that then the mons

by Sin_Cognito

All my prompts for Papyly 2026! Will contain Papcest as well as /Reader content, a lot of AU Papyri, fluff and smut and platonic. All the chapters are predicted to be one-shots, but who knows what can happen? :3

by Kustal4life

You've accidentally brought your alternate into this world, + Classic AU versions of Sans crash into his universe, but the completely unrelated machine is broke and they need to get home. The how will they all do it? Tune in to find out eventually.

by Leftblind

The Angst Queen has been released, good luck putting me back in a cage HAHAHAHAHA

by Andrea777Cats

No summary provided.