hey my name is Undertell Swaster Sans but please call me Swast.  I also have a tumblr.  I'm gender fluid and I'm one Pervy son of a bitch. I like Undertale mainly cuz I think its pretty cool. I'm a big time loner, some call me a loser but I try not to let it get to me. but sometimes its hard ya know. I really like the fact that people like my stories. and I'm friends with quite a few people on here. I'm bisexual, I like the Sans AU's and I think Underswap is fudging adorable. I've never really done any stories so any on here are pretty much my firsts. kinda. if anybody has requests for a sans AU x reader I'm open for your requests hit me with your best shot. I'm also a pun lover and I'm addicted to ketchup. I just REALLY like it. so if ya guys have ANY more questions feel free to ask. I'm opqen. see ya on the flip side. Stay Fresh. also I'm a fangirl/boy of Fresh and Gaster Sans....so hot...damn....and I am single once more *single tear*  .. my favorite song is Take Me Home by Hollywood Undead..love the song to bits..and i have a slight obession with Gaster Sans...
  • JoinedDecember 27, 2015



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UndertellSwasterSans UndertellSwasterSans Aug 10, 2019 08:30AM
I'll also be starting a couple of Creepypasta x readers. Cuz I kinda got sucked back into that fandom xD 
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Stories by UndertellSwasterSans
Should I Kill You or Kiss You? (Underfell Sans x Reader)  by UndertellSwasterSans
Should I Kill You or Kiss You? (Un...
"I should've killed you when I had the chance."
Now and Forever (Reaper!Sans x Reader) by UndertellSwasterSans
Now and Forever (Reaper!Sans x Rea...
what will happen when you suddenly come face to face with death itself. will you run to escape or fall inlove...
ranking #410 in reapertale See all rankings
Whispers In The Dark (Undermir Sans x Reader) by UndertellSwasterSans
Whispers In The Dark (Undermir San...
a story of a demon like Sans and a gentle human girl on the surface. Is this how it ends for you? Will you pe...
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