Nightmarexcross Stories

61 Stories

Nekos (An Undertale Sanscest story) by __Purple_Fluffball__
#1
Nekos (An Undertale Sanscest story)by Crossmare
Dear, Nightmare, Cross, Error, Dust, Horror, Killer, Lust, Reaper, Geno, Ink, Dream, Blue Hey guys, It's me...Sci, So uh, I've just discovered something really cool. And...
Completed
Apocalyptic Love (A Crossmare Fanfiction)  by __Purple_Fluffball__
#2
Apocalyptic Love (A Crossmare Fanf...by Crossmare
They first came as individuals, people caught up in the Nuclear blast of Craitown. But people soon realised that the infected numbers were increasing. Cities were swarme...
A Mortal's Touch (A Killer x Dream Fanfiction)  by __Purple_Fluffball__
#3
A Mortal's Touch (A Killer x Dream...by Crossmare
For millennia, rules had been set down in concrete for gods and mortals; -No God should ever make contact with a mortal -Bringing mortals to the immortal realm is forbi...
Nightmare X Cross | Servant Or Lover? by thetwinsdivine
#4
Nightmare X Cross | Servant Or Lov...by gem divine
This is a story about two skeleton lovers. After they CROSSed paths through a NIGHTMARE. The smaller one had been stuck in an AU called X-Tale, with one person, who doe...
Under the Apple Tree - a Crossmare fanfic by Midnightgacha8
#5
Under the Apple Tree - a Crossmare...by Midnight gacha嘎查
this story is based on a Manta series called 'Under the Oak tree' and is entirely inspired by that, there may be different takes as I will switch some things up, the shi...
Crossmare Oneshots - (Requests Open) by Adrienne_Lasagna
#6
Crossmare Oneshots - (Requests Ope...by Adrienne Lasagna
Read this, or I'll start shipping Cream. ------------------------------------------------ Cross and Nightmare were both made by Jokublog. ...
Of X's and Moons | The Ultimate Crossmare Fanfiction by MOVED-ACC-01
#7
Of X's and Moons | The Ultimate Cr...by If you ain't talking Crossmar...
A crossmare fanfic with all the fluffiness and action you will ever want !
Love in our own way [Error x Ink & Multiship] by lets_hyperfixate
#8
Love in our own way [Error x Ink...by max
Nightmares gang were at his mansion chilling out when they hear three loud bangs at the door, they opened the door to find the star sans', lead by Ink, in floods of tear...
My Friend Over the Phone by solis_solaire
#9
My Friend Over the Phoneby Are you in pain? Because I'm...
[!!PLEASE READ!! This book is currently under revisions, so some chapters are currently unpublished! I am currently fixing a bunch of stuff with the book that I personal...
Criminal Boundaries (An Undertale Sanscest Story)  by __Purple_Fluffball__
#10
Criminal Boundaries (An Undertale...by Crossmare
Sequel to Criminal Conflict! It had been nine years since the criminal gang last met up and did anything illegal. They'd planned on never really seeing each other again...
Silent tears by 0nyx_san
#11
Silent tearsby ˗ˏˋ꒰ 🍒 ꒱Tenebria
Rewrite of Silent Cries all credits goas to their rightful owners more will be added later
Crossmare Oneshots by DuckieisGone
#12
Crossmare Oneshotsby Duckie
Random scenarios and stories of sanscest ships. Some happy, some sad. Some long, some short. Nothing is perfect, nothing is complete. They come, they go. I'll try to gra...
Twilight Corruption by _UniverseTraveler_
#13
Twilight Corruptionby Krystal
Two young brothers, Dream and Nightmare, are the village's guardians of the Tree of Feelings. They make a great connection and can never be separated. Oh... You're famil...
Crossed Paths [Kidnapper! Nightmare!Sans X Innocent Cross!Sans] by Ruthko32
#14
Crossed Paths [Kidnapper! Nightmar...by Ruthko
It was unexpected, he couldn't imagine himself being stuck in a place where he's forced to call home. Why? How did it happen? He questioned as he cried silently. It was...
ghost♡(Crossmare)   by lizzy_and_lust
#16
ghost♡(Crossmare) by lizzy
Nightmare and his gang are ghost hunters.
}My midnight star~ CROSSxNIGHTMARE FANFIC{ by CrossSansREACTS
#18
}My midnight star~ CROSSxNIGHTMARE...by CrossSansREACTS
Cross discovers his feelings new found feelings for nightmare. I don't own any of the cars in this doc so yea also its gonna have some nsfw/lemon later on so yea, But th...
SANS AU Oneshots by Ionlyfeelconfusion
#19
SANS AU Oneshotsby Kay
Just a story about a fandom that I've been obsessed with for years- Anyway, this will probably be anything from short stories, crack fics, and a few actual stories with...
NightmareXCross Headcannons by Flower_Faith140
#20
NightmareXCross Headcannonsby Jei
The title says it all. ((warning! Lots of shipping!)) (title art created by me on my tumblr, Artjam101)