Polar Opposites

Ink!Sans x Error!Sans. All you need to know. Also a little US! Sans x UF! Sans. Also at several times I will make absolutely no sense whatsoever...so yeah fair warning.

We Are A Family (Multiversal FGOD Error Fanfic)

This picture does not belong to me, it belongs to Iyoth737 on deviantart. This is inspired by @harrish6 and their "Falling Into A Different Destiny" NaJ story. Read HWHBB and FiaDD before this. Thank you. Enjoy (or not)!

Ink x Error 《[Lemon/Sin]》

Hi! this is my first post- there will be sin in this story, so please be aware of that and we will we all see the fun ink and error will have!~ enjoy!!!

My Pet (Underfell Fontcest)

If you don't like this ship, Undertale, homosexual love, or a kinky and spooky skeleton, don't read. Undertale, and it's characters belong to Toby Fox. THERE WILL BE VIOLENCE, DO NOT READ IF YOU'RE EASILY TRIGGERED! When a kinky little shit known as Sans does what he's not supposed to, what happens? ( sorry I had to...

Mine, Not Yours/ Yandere Underfell! Papyrus X Kid Reader

This is for my sister, but you guys can read it to!! (I fixed the gender form being female to nuetral, please let me know if you find and female pronouns so I can fix it!) Disclaimer: I don't own Underfell or Undertale.

Undertale Ship Pics

NONE OF THESE BELONG TO ME AND I DO NOT CLAIM ANY OF THEM AS MY OWN ALL CREDIT GOES TO THE ORIGINAL ARTISTS I just made this to share some cute pictures of ships PLEASE DON'T SUE ME

Ugly

Another honeymustard fanfic....

Nightmares

An underfell story about one night sans woke up from a nightmare and ran into the woods not wanting to come back. it was very snowy and he almost froze to death till his brother found his unconscious body

I fell for my captor (swapfell sans x fem reader)

yea it's basically the title.. but here's the story 'you fall into the underground, only to be captured by a skeleton grieving over his brother's death (more on that later) and the skeleton decides to keep you as a pet, to replace his brother and you soon grow to love the skeleton from Stockholm Syndrome' ok in this I...

Underfell Sister Scenarios 2

NOW WITH UNDERFELL GASTER!

SwapFell Sister Scenarios

So... what would happen here?

Undertale Sister Scenarios

"Like Underfell, but a different AU."

Something No One Can Have Yandere!Papyrus X Reader

You weren't noticed much, other than your friend Chara. One day she suggested you both go to Mt.Ebott. you wanted to know if the legends were true....were they?

Underfell Sister Scenarios

How would your life be as Sans and Papyrus's sister in Underfell?