#Gaster, #Grillby, #Grillster, #Undertail

NSFW / Adults only 

[poly-r]

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[spoopy-latte]

Man tbh sometimes I have this craving for like… Pre-core Gaster and Alphys having this dirty little secret at work where if either of them were horny the other would happily oblige to help them out

Gaster having Alphys come to his office and fuck her right there on the desk, or maybe get her under the desk to suck him off

Alphys bashfully requesting Gaster’s assistance during some experiment they’re in the middle of and him taking her to the nearest storage room to make her cum

I like to think Alphys thought he was really hot back then… And Gaster admired her work ethic and intelligence. It may have been a bit one sided, since Gaster wasn’t interested in a relationship with her, but their filthy sex-at-work arrangements worked out, nevertheless.

I just like the thought of Alphys being a stuttering infatuated mess when it comes to Gaster

And I like Gaster being a sweet, soft-spoken monster who takes his work seriously, but will not hesitate to whisper in his assistant’s ear, “meet me in my office this evening at 6, Miss Alphys.”

[sanster-blaster]

Ribbons & Bones

FIRST / PREVIOUS / NEXT (Coming soon!)

Hello, it’s been a while! Merry Christmas!

[yesyooduck-blog]

gaster,sasn

[kindlecoverdisasters]

So that’s why Garfield hated Mondays…

Buy it HERE.

[freakbullet]

sasster please shove your dicktionary in my ass please

congrats he is now rethinking this whole askblog thing*Sans walks by* “ha! dicktionary”

[memewhore]

[ethoereal]

BITCH ME TOO

[notstealthforwork]

GASTER GRAB FEM!ANON BY THE PUSSY

this took roughly 2 minutes and they were the worst 2 minutes of my life 

[alienvoidhell]

Um, what about Allen eating out of someone with that long tongue of his? *insert lenny face*

the real question is do you really want that that gaping maw of sharp teeth so close to your genitals– - oh who am i kidding

[pocket-sans-doll]

grillby×sans

[shadepb]

I am like on fire I am only simply thinking of him listening to Echo and my flesh is on fire

He kills me, he makes me crazy

진짜 미칠 거 같다.

[artitties]

*screaming* JUST WRITE DICK i promise its 10000000% sexier

[buttart]

his swollen meat thermometer was ready 2 take ur temperature

[warmnovelty-deactivated20241220]

this will probably never be seen XD 

[yeah-yeah-beebiss-1]

bad things to say when you nut

whoopsie-doo, here comes the goo

it’s slime time

have some brogurt

a shot of goo from me to you

gonna splurt the ‘gurt

[ogami-s-deactivated20170423]

tongue of fire

[recentgooglesearches]

would an alien think im pretty

[freakbullet]

umm…. wHo gave u my search history??

(Alien!Gaster belongs to wdgadget ) I’M SO SORRY FOR THIS PLEASE DON’T REVOKE MY BUG-DRAWING PRIVILEGES

[maximum-overboner]

gaster violently fucking you while you’re strapped to a gurney, in the backroom of the core that nobody ever checks, panting and growling in your ear while he does what he wants

[notstealthforwork]