we have come full circle,,,,
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You knocked on the door to Sans and Papyrus's house, but no one answered. The latter had invited you over for dinner. You had brought backup food, just in case Papyrus set the spaghetti on fire again.
"Hello? Anyone home?" the lights were on, but still no response.
You tried the doorknob. It was unlocked. The door swung open and you stepped inside, quickly closing it behind you to keep out the cold. You took off your jacket and set the food you'd brought on the table near the door.
The house looked completely devoid of life. You looked at your watch, double-checking if you had the right time.
A paper taped to the tv caught your eye. You moved closer to read it.
"SORRY I COULDN'T JOIN YOU TONIGHT, HUMAN. I HAD TO TAKE OUR PET ROCK FOR A WALK. HAVE FUN WITH SANS!!!"
"...I don't know what I was expecting," You muttered to yourself.
You noticed that the usual rave lights and indistinct noises seemed absent from Sans's room. The door was still closed, but no flashy effects could be seen. You walked up the stairs towards his room. Was he gone too?
It seemed like the perfect opportunity to go in- you'd never seen Sans's room, after all. Your curiosity got the best of you and you turned the knob, slowly opening the door.
At first you thought it was a blue lava lamp, but you blushed when you realized you were really looking at the skeleton's glowing dick.
Sans grabbed the balled sheets on his mattress in an attempt to salvage the situation. Super discreet.
"er... uhm..." Sans wasn't sure what to say.
This was your chance! Finally! It was happening!
...So why did your mind decide to suddenly go blank?!?
"Uh... sorry, I-i should've knocked first," you said, embarrassed. "I-i'll, uh, get out of your way now." No! Shit! Why were you passing up this opportunity? It was a situation straight from one of Alphys's fan-fictions and you were just throwing it away...!
"w-wait!" Sans blushed. "do you want to... uh... stay...?" he stammered.
"Uh... y-yeah! I mean, sure!" you said, trying to hide the idiotic grin that was forming on your face. You were sure your face was as red as Papyrus's scarf by now.
You sat down on the mattress next to him. He moved closer to you, touching your arm. You definitely had a boner now.
"do you mind if i...?" Sans motioned towards the tent in your pants. You nodded, too flustered to say anything else. He kneeled down in front of you, carefully pulling off your pants.
Sans smirked at the bulge in your underwear. "are you really this turned on just from seeing my dick?" he said smugly.
"S-shut up," you said, embarrassed. The skeleton chuckled, pulling down your underwear.
"damn," he said under his breath as your cock sprung free. He wasted no time and instantly began licking it, his tongue the same fluorescent color as his crotch. Both magical appendages glowed softly as Sans tasted you, slurping quietly.
You moaned as he took it into his mouth. He placed his hand on your thighs, lifting you slightly into the air as he sucked eagerly. You were already close.
"A-ah- wait-" You said. Sans took you out of his mouth and set your legs back down.
"what's wrong?"
"i-i just... didn't want it to end so soon," you breathed heavily. He nodded in understanding.
"well then... i think i have something else you might like~" Sans said smugly, adjusting himself so that he was on top of you. You could feel his dick throbbing against your ass.
"here goes~" he said, pushing himself into you in one thrust. He moved his hands to your sides and held the sides of your body as his cock slid into you, prompting a loud moan.
Sans glanced upwards, checking to see if you were still ok. He noticed your erection, still pulsing- maybe even harder than before. He took that as a "keep going".
He started thrusting, grunting as his dick slid into your ass. Your hands grabbed onto his as he fucked you, breathing heavily. The soft blue light emitting from his body illuminated the sight of his lustful face as he pounded into you.
"fuck, i'm gonna-" Sans was cut off by his own finish. With one last thrust he came in you, grunting. Watching him cum in you sent you over the edge, too, and your dick shot cum into the air.
You both settled down, breathing heavily. Sans pulled out of you slowly, watching with satisfaction as him cum leaked out of you. He brought his hand up to his face, and it came away sticky.
"wow," he said. "that was quite the shot."
"Hah... yeah..." you said, still coming down from your high.
Sans smiled as he saw you grinning and blushing at the same time.
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I wasn't quite sure how to end that lol
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~Lusting~ Undertale X Reader Oneshots
Fanfiction!!! Does contain explicit content !!! A collection of Undertale oneshots. Feel free to request on the request page. Can be angst, Fem!reader, Male!reader, smut, fluff...
