As Gaster and pregnant?by Karma Akabane
Small warning if you don't like the ship Gaster x grillby don't read
Also no sex scenes or anything sooo yeah
Also might be one of those ones that I work on when I can'...
Fallen Children, Fell Familyby UbaLala9
(Underfell) Sans finds Frisk with her soul shattered. He ends up reviving her as a skeleton. Then he revives Chara and the other fallen humans as skeletons
Skeleton Serpentsby UbaLala9
In a zoo in Ebott lives three juvenile lamia. Now,, the keepers have decided to bring in more lamias. What will happen?
Tiny [Undertale Omniverse Travelle...by DeadEnDead
Chaotic babybones Tiny is searching for his twin brother, who he's pretty sure was also thrown somewhere out into the omniverse. He's not going to let anything get in hi...
Firefly [Babybones Omniverse Trave...by DeadEnDead
'Dream' just wanted to be a good brother. Instead, he is thrown far across the omniverse with no home to return to.
Wait... who was his brother again? Is he even alive...
Just An Inkling [Undertale Omniver...by DeadEnDead
Babybones Ink variant Ducky travels the undertale omniverse and makes some unlikely allies along the way.
Fableby Firehedgehog
He woke without memory, the only survivor of an ending multiverse saved by the Traveller
He was a Dream, who had lost everything as a statue. But now he was Fable. He'd...
Flower of Echoesby Philippaki
((Co-Author Firehedgehog))
Everyone knows the tale of the twins, Dream and Nightmare. The fights, the fear, no matter the multiverse it's all the same...but what if some...
Sans au age regression ficsby Kitoto the babybones
Hello everyone you probably read my old af "nightmares little prince" fic, it was eh- but I am now more mature and want to make a new fic this time based on yo...
Mature
Error got a job changeby UbaLala9
Fate realizes Error's suffering, so she decides to change up the multiverse. Now jobs have changed up and the multiverse is changed. Of course, Error can't just become n...
Ink relocates error (kidnapped) by Karma Akabane
Yeah I gained an idea and stuff so things will be different even personalities and everything you can think of :)
please don't break my heartby darkmoon_sans23 [ DARKLIGHTVE...
nightmare and lot c-ptsd sense childhood from village befor kill them they use to bullying, hurt him real badly, r@pe him unil he couldn't walk, scar him round his bod...
The Return of W.D. Gasterby clown
A fanfiction about two touch starved old men realizing their love for each other
dadster headcanon, orange and blue gaster magic/blood/etc color headcanon (also connecte...
Golden eyes.by -ThaliaNyx 298-
Nightmare watched as the infant squirmed and wriggled as she was passed to the most negative being in the room. He hadn't noticed when she had closed her eye sockets but...
Violet's little horrorby Diamond3343
in underlust due to the infertility in the au children were treasured by everyone. Rape and and other things were banned and monsters would cover up around children but...
Bitties of Feelingby SketchSkeleSage
A new Bitty AU is formed. A birth of twins came to be in a lonely world, they have a choice to learn about the dangers of the outside worlds or will an enemy hidden behi...
Why do you care for me? (KINGDINGS)by Alastor
Gaster was working, as always. He had created his two subjects and was supposed to research on them, but when the time came to choose.. He chose mercy. Now, the real que...
How I Become A Goddess: Book 3by Sarah Smith
You can go to book one to see the first god if you want :)
Mama!by It's A Secret Shhhh
Y/N lives in Ebott city, she's been keeping it in order. She helps save bitty Sans and Papyrus, but she discovers something painful and had to keep it quiet. While savin...
What's up babybones?by Trouble_Warning
Error has a soft spot for kids, but he doesn't usually interact with them.
so what if he suddenly finds a unconscious 5 year old lost in his antivoid?
And what if that k...