Cross Stories

1.2K Stories

Mr.  Erratum by CrimsonOrRetry
#1
Mr. Erratumby Crimson/Retry
Error can take it no longer. After centuries of Pain and suffering, Error no longer cares what happens to the people who caused him pain, and now wants to leave the plac...
Paws by TheoryKierei
#2
Pawsby TheoryKierei
Book 3 of the Cross-shifter Series. Life has always been good for Sam. He had it all. The huge house. All the hot one night stands he could ever want. Parents who could...
Completed
The Book oF Error by poisonusbuttercups
#3
The Book oF Errorby AAAAAAAAAAAAA
*insert a really good description of the book here*
Retrace bxbxb by TheoryKierei
#4
Retrace bxbxbby TheoryKierei
(Book 2 of the Reverse series. This is a stand-alone story) What is a young boy to do when he is mistaken as a girl after stealing and offered a lifeline from possibly b...
Completed
Whiskers by TheoryKierei
#5
Whiskersby TheoryKierei
Book 4 of the Cross-Shifter Series. Can be read as a stand-alone but might be confusing at the beginning for a bit.) Being captive for years has soured Palace's outlook...
Completed
Claws (mxm) by TheoryKierei
#6
Claws (mxm)by TheoryKierei
This is book 5 of the cross-shifter series and a continuation of sorts for Whiskers. Happiness wasn't something that you earned. It was something that you killed for. D...
Completed
Sanscest One-shots (no lemons) (Requests Closed) by LtHunter
#7
Sanscest One-shots (no lemons) (Re...by Lieutenant Hunter
just some one-shots of Undertale AU ships. I do not own any of these characters (unless state otherwise). I try to update twice a week.
Multiverse Switch by MiraiShiaki
#8
Multiverse Switchby Afterdeath_14
"I'm not, I repeat, I'm NOT going to play around with you." "It's your fault why we're stuck like this." "I can disguise as a guard! We could-&q...
Creation Begins with an I, Destruction Begins with an E (Undertale Errink Book) by EmoTrash360
#9
Creation Begins with an I, Destruc...by Brooke Is Trash
Error and Ink are two Gods, one of creation, the other of Destruction. One is a tattoo artist, happy with his life, the other works in an office, wishing he could quit h...
Criminal Conflict (an Undertale sanscest story) by __Purple_Fluffball__
#10
Criminal Conflict (an Undertale sa...by Crossmare Slut
This is an Undertale book Criminals have always littered the streets causing a mess and breaking the law. But what happens when criminals Fall in Love? This includes all...
You don't understand!! I WILL HAVE THE LAST LAUGH!!(error story) by OMG60123T2
#11
You don't understand!! I WILL HAVE...by OMG60123T2
It's an error story, As you seen from the title Art not mine
𝐔𝐍𝐃𝐄𝐑𝐂𝐔𝐓 by UndertaleFanFicz
#12
𝐔𝐍𝐃𝐄𝐑𝐂𝐔𝐓by ✧「M.A.4.Ə」✧
THIS STORY CONTAINS: CUSSING SELF HARM ABUSE SUICIDAL THOUGHTS SUICID ATTEMPTS GUY X GUY (GAY) MAGOR BLOOD HEARTBREAKING BITCHY DREAM ------------ YOU HAVE BEEN WARNE...
The Misunderstood Glitch ( An Error Story ) by ZaryasTales
#13
The Misunderstood Glitch ( An Erro...by Zaryas Tales
As many Fgod stories shows that Error was forced to destroy by Fate. What if Fate didn't force him at all, what if Error decided to help her by destroying Aus, What if F...
Au Sans X Reader lemons by 23whitecrystal
#14
Au Sans X Reader lemonsby ✨ M e L K ✨
I don't know what to say.This is how to deal with lemons with different Au sans apparently.
Bloody Love~ (HorrorLust) by _QuartzCrysta_
#15
Bloody Love~ (HorrorLust)by Quartzite
Lust, the Sans that everybody hates, is sick and tired of his AU. He wants to try something new but, what is that 'new'? He went through a portal and ended up in a blood...
[He's Different | Undertale Highschool AU] by A_Little_Potato166
#16
[He's Different | Undertale Highsc...by Potato_UwU
Sans just chillin' in his sentry with a bottle of ketchup on his hand. But then, suddenly a portal spawn a few yard where sans is chillin'. curious, sans teleported to t...
That's The Stupidest Idea Ever [Sanscest Multiship] by x_mystica_x
#17
That's The Stupidest Idea Ever [Sa...by ☆Mystica☆
(That's the stupidest name for a story ever) (I used to be x_gxlaxy_x, I'm just too lazy to change the cover) The Star Sanses are made up of Ink, Blue, and Dream. While...
Goopy Love by LaunchSteinward
#18
Goopy Loveby LaunchSteinward
1.A Shight / Dreammare story - a Nightmare x Dream story. - a Shattered Dream x Nightmare story - a Octopussest and Sansest story 2.My sucky attempt at fluff ...
I'll help you  ( Multiship) by ShugarHoneyIcedTi
#19
I'll help you ( Multiship)by ShugarHoneyIcedTi
WARNING! This fanfic contains sensitive topics like self harm, rape, depression, and more! All sans don't belong to me Credit to teh owners. Just read it , I don't kno...