Gastersans Stories

206 Stories

Why? • Gaster!Sans x Human!Reader by sansisnotonfire
#1
Why? • Gaster!Sans x Human!Readerby sansisnotonfire
'When I was 13, I killed someone. By accident of course... It was the day I found out I possessed some type of power.' You kept it to yourself for years until one...
Broken Soul {Ink!Sans x Depressed!Reader} by Trixbyte0
#2
Broken Soul {Ink!Sans x Depressed...by Trixbyte
| Some people don't change |
Completed
Falsely Convicted  (G!SansxFrisk) by Wolf-Madison
#3
Falsely Convicted (G!SansxFrisk)by Howling Wolf
Frisk's world has just fallen apart. She's innocent and afraid in a prison of dangerous monsters, figuratively and literally. There's something going down and Frisk isn'...
Completed
No, I love her. (sans x protagonist ) COMPLETE!! by Peaches-chan
#4
No, I love her. (sans x protagonis...by Peaches
Stuck in between wrong and right who will you choose? The man that stole your heart or the man who claims he'll jump off a cliff for you. All you want to do is be happy...
Gold's Eye GasterSans X Reader by xbutterfly_walkerXx
#5
Gold's Eye GasterSans X Readerby Not Coming Back
You've heard the stories, of the mysteries of a man who guides lost ladies home by night legend says his voice is like a demon of hell and anyone who's ever approached h...
Completed
Sorry About That (Gaster!Sans x Reader) by little-nabb
#6
Sorry About That (Gaster!Sans x Re...by Miscellaneous
You worked for the newspaper, doing a simple editing job and a few other things here and there. Ever since monsters came out of the ground, though, rent has sky-rocketed...
Hold Still GXReader by EternalKimFlame
#7
Hold Still GXReaderby Flame
(Y/n) has had a rough life, how could it get any worse? Let's let G answer that. ~~ This is a Complete Rewrite of Hold Still! I don't own any of the pictures or Songs.
Completed
Resistance (G!Sans x Frisk) by _raxeira
#8
Resistance (G!Sans x Frisk)by hazel.
Frisk had always run into the occasional human-hating-monster, but when the attacks got more violent and consistent, she has no other choice but to seek the companionshi...
Completed
Echotale - Thought So (G!sansxFrisk) by _fransfics_
#9
Echotale - Thought So (G!sansxFris...by A.P.M.B
FRANS This is a request and I have been really exited to start writing it! I really hope you like it! Echotale is not my AU! Neither is Jailtale! This is just my own lit...
Blown Through The Rift (Gaster!Sans X Reader)  by BanthaBug
#10
Blown Through The Rift (Gaster!San...by Bug
You were working with Alphys in the lab in Undertale when chaos strikes! In a freak accident, concentrated determination is mixed with an unnamed concoction and blow you...
Completed
The Forbidden Room...                                 (au sans x monster reader) by gamerslacker
#11
The Forbidden Room...by gamerslacker
There is a room no one knew about but somehow there was a reset a different one that made almost all the alternative universes in one -------------------------- Also th...
Crossfire -Gaster!Sans x Reader by _Forever_o3o
#12
Crossfire -Gaster!Sans x Readerby _Forever_o3o
What would you do if you lost your family and had to be alone? A girl named Y/N, has lost her family from the war. She hates monsters to this very day. But what if she f...
Small (small reader x au sans) by Sansy_Pappy
#13
Small (small reader x au sans)by The Great Papy
You are brought to a strange void and you are greeted by nice people...err skeletons, But guess what? You are TINY!
Echotale Gaster Sans x Reader by insomniaskeleton
#14
Echotale Gaster Sans x Readerby insomniaskeleton
This is not a lemon but it is funny and romantic, But mostly funny. These characters do belong to the person who created echotale, but the story is mine. It isn't follow...
What's Up, Doc? | Gaster!Sans X Reader by artsyTrashpile
#15
What's Up, Doc? | Gaster!Sans X Re...by -
------------------------- "Well would you prefer 'glasses' or 'human'?" He smirks. "..." You glare at the smoking skeleton. "Then Doc it is.&quo...
I'm here TOO!!!  ~ Colonna's Story! by dazelnutz
#16
I'm here TOO!!! ~ Colonna's Story!by oopsiexdaisy
Colonna is often overlooked in Xahji's story. She's usually the comedic relief, the one who breaks the fourth wall. And most importantly, a great best friend to Xahji!! ...
Au x Tall! busty! naive! shy! nice! reader by Cutiechan221
#17
Au x Tall! busty! naive! shy! nice...by sweetie bunny
you lived in a nice white big house own your own, you liked watering plants and you liked animals too. but you were little naive sometimes Toriel visit you to have tea.
Your Majesty |G!Sans x Frisk|  by Deadly_Writers_clone
#18
Your Majesty |G!Sans x Frisk| by Deadly_Writers_clone
WELLLLLLLLLP! I was listening to a song (I'll probably add it in the story) and I'm like "Oh hey what if this were Some Characters feelings?" And so I uh I'm g...
"Rose Petals" Underfell Sans x Frisk by KysZonedOut
#19
"Rose Petals" Underfell Sans x Fri...by Haybae
The Princess, she was such a beautiful person around the whole kingdom. But what caught her eye was her Friend. She had grown up so much, but couldn't help but fall in l...
It was nice meeting you, Sweetheart~ (Echotale Sans x Altertale Sans) by Zen_Rexiel
#20
It was nice meeting you, Sweethear...by Zen Rexiel
Ever since Echo Sans or G!Sans what monsters called him. Anyways since G!Sans discovered about Alternative Universes one of the Sanses but they told him to kept it a sec...