#gaster x reader

A lot of the fandom being obsessed with theories on who he is and piecing together his lore, sinking their teeth into everything about him as breadcrumbs are set out for us to follow.

Years later(?) Gaster becomes obsessed in his experiments of being able to contact us and creating an entire story just to have the equivalent of an eldritch multidimensional being be put in a rat maze.

hear me out, sans marries toriel, sans is kris’ (step) dad. gaster is (well he might be but i’m not into lore and i like that) sans’ dad. making gaster kris’ (step) grandpa.

You weren’t expecting company tonight.

i wanna hear some gaster x reader!

i wanna hear about gaster being head over heels for the player

but the player just wants to inspect him under the microscope

and once we know everything we just move on to the next interesting thing

so gaster has to keep making content to keep us around!

Oh that's not the dynamic I had in mind but I also loooove that concept okay hold. We're cooking.

(Mild) Yandere Gaster X Player!Reader Headcanons

All he originally wanted was to know you existed. Just a tiny bit of proof of you would have been enough to satisfy him at first. But now that he's reached you, know that you're Connected, he just can't be without you.

It's like an addiction, if he looses your attention for even a moment it feels like his world is crumbling.

He talks very slowly to you on purpose, slow and unskippable dialog to keep you locked in and with him for as long as he can

The story he weaves for you isn't all that vast, but he fills it with secrets, difficult things to find and rare dialog to hunt for. Things that will keep you coming back, trying again, up for hours searching

He chose the Shadow Bosses for this same reason. They're hard to find, harder to beat, frustrating but not impossible. A challenge worth conquering. Time worth spending.

Whatever makes you stay longer...

When you do finally close out if feels as though all the air as left his body. He's drowning without your gaze, your smile and laugh and voice over of the characters

The dark is just so crushing without you

And when you come back its like he's been reborn. Suddenly he can breath and see and think. The world isn't so dark anymore, with you there behind the screen, talking to who you think is yourself

He hangs on your every word, your every laugh, your every crinkle of a smile, like a drug it all makes him feel on top of the world

Don't turn the game off just yet. There's still more to see. More people to talk to. More secrets to uncover. Just a few more battles. Another attempt at that boss. Just another hour. Just a little bit longer