Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/7443439.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      F/M
  Fandom:
      Undertale_(Video_Game)
  Relationship:
      Sans/Reader, Reader/Sans
  Character:
      Sans_(Undertale)
  Additional Tags:
      Smut, oneshots, sans/reader_-_Freeform, reader/sans_-_Freeform,
      Randomness
  Stats:
      Published: 2016-07-09 Chapters: 1/? Words: 5639
****** Black Spots ******
by ScrewYourHappyEnding
Summary
     A collection of some sans/reader one-shots. Every chapter is one.
     Smut in most of em. Every 'reader' has a name that is stated and is a
     sortof OC.
You were sitting there, sans warmth embracing you from the back.
It was dark and late in the evening. You had called sans up after completely
breaking down while outside, and he had been there. He had calmed you down,
called up Frisk and Toriel to come over. He had sat there for hours, listening
to everything and anything you said, and you couldnt tell him how grateful you
were for it.
Your strange, seemingly random anxiety had gotten the best of you, and you were
ever so thankful that you remembered to put his number on speed dial. It wasnt
the first time that he had helped you out of a situation like that.
So after he brought you home, he let you sit on your lap to continue the
tradition you two had worked out. But since it had begun getting late, he had
been at work when you called and you wanted to stay longer than usual, his legs
got tired and now you were technicall sitting on the couch with him just
hugging you from the back lightly.
His arms were wrapped around your abdomen, and you enjoyed the warmth he gave
off from him. It was increadibly nice having him there in a time like that, and
just sitting there in comfortable silence late at night with him hugging you
from behind was the best situation you could imagine. You didnt want to get up
and go, or crash on the couch for the night: Not yet.
You sighed a happily as you closed your eyes and let yourself feel your relaxed
muscles. You were rarely so relaxed than in situations like these. But you
didnt have the heart to tell him that.
How could you? He would freak out. Why? Because just a few days ago, Papyrus
had admitted his feelings to you.
And you had to break his fragile little heart by brushing him off.
You remembered the moment all too clear, the sadness on his poor, innocent face
and sans' killing look from the back. Both hadnt talked to you all day after
that, and you were sortof glad that you had your breakdown, because Sans come
to your rescue like nothing ever happened.
You could still feel the slight tensety in the air though, even if you tried to
ignore it. He was probably still mad at you, but didnt have the heart to leave
you internally dying in the middle of the street.
Because despite all of the mess you had gotten yourself into, you knew for a
fact that you had been crushing on sans longer than on all of your other little
crushed put together. And then multiplied. And then some.
It had been a year now that youve known them, and just when you had gotten
close enough, when you had sworn to yourself to master all of the courage in
your heart to tell him how you felt, Papyrus came along and ruined your plans.
You werent mad at the tall, sweet skeleton at all, he couldnt have possibly
known. But how were you ever going to make up for leaving him so devastated?
How would sans ever forgive you if his brother meant the world to him?
You sighed again and leaned back a bit, still not ready to stand up to face the
cold empyness again. You wanted to stay like this forever until your soul felt
good enough to tell him the truth. But what if as soon as you told him, he
would push you away from him and tell you to get lost? And never want to see
youe ever again, not to mention touch?
You felt a reassuring nuzzle to the back of your head and then heard him
whisper not too far from your ear.
'is somethin wrong? you seem troubled. are you still scared to go outside
again?'
Your heart fluttered at his concern and you wished that you could scream 'YES'
and then cling to him for the rest of eternity, but that wasnt true, so you
just slowly shook your head before speaking.
'Im fine, really. I feel well enough to go outside and stuff, I just... I dont
know. I just need another moment, then I can leave'
'still thinkin id let you outside at 23:46? what, do i look like i want to get
you killed that badly?'
'N-No, of course not... s-sorry. I didnt realize...'
Damn him. Always made you stutter like that. Nobody ever made you stutter. You
could stand against King Asgore, Queen Toriel and all of the presidents in the
World put together at once and proudly swell your chest without batting an eye.
You could stare down death and you sure looked like you could in your usually
dark clothing, your pale, white skin that contrasted heavily with your black
and aqua hair. But when sans was talking, you were stammering like a little
girl in a pink dress that got scolded for something, and you hated it. But also
kindof loved it at the same time.
'Wait WHAT? Its THAT LATE? Oh my gosh. I h-have to get home, I-I have work
tomorrow that starts at 8:15, I h-have to... have t-to...'
You wanted to stand up from your position, but two fairly strong and determined
arms held you back and made you slump back right after lifting off an inch from
the comfortable springs of the couch.
'i can teleport you back in a moment, no need to hurry. but are ya sure your
fit enough for work right now? maybe its better if you take the day off. you
havnt in a while'
Of course you hadnt taken any days off. You needed SOME way to distract
yourself from how fucking hot he looked all the time and the fact that your
greatest fear was confessing your feelings to him! And that all while you didnt
even blink at horror movies that even made Undyne shrink into her seat!
'I dont know. I think so... My break downs have been really wearing off lately,
so I think Ill be fine for now. I will take the day off if I feel bad in the
morning though'
You added the last part a bit reluctantly as he had tightened his grip during
your talking. You really wished to just get out of his grasp and finally flop
on your bed, alone, so you could let your imagination handle the rest and get
rid of this burning desire that felt worse than ever this time. Why did he
always make it so damn hard to leave as if it wasnt hard enough on its own?
'okay. take care of yourself, k?'
'I will'
A few moments passed, and neither of you did anything. You knew you had to go,
but sans wasnt giving you the proper que to leave. You couldnt even stand up
from the position you were in if he kept clinging to you like that.
'Sans, youll have to let go of me or teleport us there, you know'
You had light amusement swinging in your tone to hide the sadness in it. Why
couldnt you just stay?
You actually comprehended the thought of just blowing off work tomorrow, but
how would you do that after you were so desperate to go just a minute ago? Hed
think your a total loser who couldnt keep their own thoughts and decisions in
place.
'i know, i just... ugh. this is ridiculous, but... just stay like this for a
few more minutes, okay?'
You were already a slight bit tensed up, and you wanted to rip yourself free,
but you couldnt. It just seemed like you physically couldnt. You swore to
yourself that tomorrow you would tell him everything, regardless of how you
felt, but enjoy the moment for now. So you just sank into his warmth once
again.
'Okay. I dont think Ill be able to really sleep anyways, so... I might as well
stay here a bit and tell my boss I wont show up at the bar tomorrow'
You huffed out a forced sigh as you grabbed your phone and sent a quick text to
your Boss' phone number. The reply came soon after saying that it was alright,
and that he completely understood. You threw your phone onto the table and then
leaned back again. Sans mumbled something indistinctable.
'Hm? What was that?'
'o-oh, nuthin'
'So uh... You still gonna teleport me to my apart or will I have to crash
here?'
'ill teleport ya'
You nodded as you closed your eyes, the familiar sensation of everything being
gone and floating for a moment washing over you, and then you found yourself to
be in the exact same position, only on your couch.
'Saaans! You didnt even bother to make us stand up!'
'oh come on. you said a few minutes'
'Its already been  a few minutes, but... Well, Im not going to work tomorrow
anyway'
You put your hands lightly over his and closed your eyes again. You felt safe
and secure, like nothing could harm you. Like you had a fortress around you in
the form of the most wonderful and perfect person in the entire world, and for
a moment, you could pretend that he knew and cared just as much.
'hey, juv?'
Your full name was Juvela, and you would normally rip any person's head off who
called you otherwise, but sans was a big exception. He could probably even get
through with nicknaming you 'princess' or 'juju', and nobody else in the world
was allowed to do that.
God how much you wanted to just turn around and kiss him, to feel his white
lips against yours, to feel his hands travelling over your body, your curves
and vulnurable places, to see his bare bones, to know that he cares, that he
lo-
'U-uh, yeah?'
'i was wonderin... well, you know about soul colors and stuff, right?'
'Yes?'
'well, and how i have the ability to peek inside souls?'
'Uh, yes?'
'well. i figured that i dont know... i dont know what color yours has. i mean,
i know its like, a really trustworthy and maybe even intimate thing and stuff,
and its okay if your not chill with it. the color is the least to worry about.
thing is, ill see your emotions and thoughts as well, and. uh. humans tend to
get uncomfortable with that'
You gulped. How in hell would he react if he knew what was going through your
head right now?
You could nearly feel his hands ripping your dark, mostly black clothing off
you to be able to touch you everywhere. How he would sound, how his moa-
'I-I dunno. I dont think thats a very good idea, to be honest'
You let out a nervous laugh and just hoped that he couldnt use his magic
somehow to see that your face was a deep red from your thoughts.
'weeelll... what can ya do to stop me if i do?'
You gasped, your head flung around as you shifted a bit to look at him and you
did your best to look offended, but his lightly blushing, cute face made it
impossible.
'You wouldnt dare. Besides, why would you ask so nicely just to say that youll
do it anyways?'
'maybe just so i can see if your actually hiding anything before i look?'
'I wont say it again. Dont. You. DARE.'
'why? whats so special goin on in that pretty head of yours that i cant know
about?'
You were about to return something when you suddenly realized he had called you
pretty. Well, your head, at least, but that was more than you ever could have
hoped for. Did he really mean it? You turned your face away and sat up more so
he couldnt see your blush coming back with full force.
Stop it, Juvela. Stop that. Stop thinking about this hot ass and adorable skele
behind you that you would do nothing rather than kiss and fuck senseless. Stop
it...
You could hear his low chuckle and the desire creeping in the back of your mind
got worse and worse. You had to stand up, jump up even, run away. Excuse
yourself to the bathroom or something, but you couldnt. Not with him so close.
Not with where your conversation was going.
'Ugh. Just... dont'
You grumbled and then felt your breathing hitch for a moment as you felt him
move in his position, his hands gripping you tighter and making you lean back
again. He was the only person in the world you were powerless against. You
could kick the sorry butts of 5 professional boxers at once, but once sans told
you to do something or even physicaly held you in place, your best chance at
escape was squirming and whining and asking him nicely to let you go. Your
snappy attitude got you nowhere with him.
'okay, okay. how about a trade. its... not one without risk. its dangerous,
even'
Your head jabbed up a bit. You were ALL for dangers and risks. What else would
make life fun?
'Im all ear!'
You chirped to him, a smile on your lips. You could at least hear his 'trade'
out.
'ok. so, i dont look inside your soul. but in return'
He stopped on purpose for a moment and you held your breath in anticipation.
Anything to get you out of the situation of him finding out about all of your
filthy kinks and your undeniably huge crush on him. When he finished his
sentence, his voice was deep and much closer to your ear than before, making
you shiver.
'i can do whatever i want with ya the next, lets say, hour. and i cant
guarantee anythin'
You took a deep breath in and then let it back out, trying to desperatly get
rid of your stupid arousal. He was serious, he was really serious about it. Hed
have the right to kill you before torturing you for good 59 minutes. Usualy,
you wouldnt hesitate a second. Hell, he could technically do anything he wanted
to you right now with his magic and how important he was to you and such,
couldnt he? But you had never heard that voice, and you had never... actually
feared him like this.
It was also somewhat making him even hotter that he was able to claim dominance
so easily and send goosebumps across your skin with a simple voice change, and
it made you wonder what the hell he wanted to do. You had to soften up the
trade a bit, at least.
'How about you give me a tiny little hint to what you will do, and I might,
MIGHT, agree'
'nope, no hints here. or i just look into your soul hard, your choice'
You reconsidered your options again. He still sounded fairly threatening. You
tried to think of the worst that could happen, and all you could think of was
him getting you back for past prank wars he had lost and just in general
punishing you for every single time you annoyed him by embarressing you
completely. It wouldnt be physically hurting, but the entire Undernet would
most definitly know about it in the morning and you could sit through
unbearable shame for the rest of the year, or the next ten years.
Or, on the other hand, sans would know about your HUGE crush on him, feel
disgusted with you for the rest of his life and never want to see you again.
So either you sat through the entire world being ashamed of your existance for
10 years, or sans would hate you for the rest of his life. You took a deep
breath once more and then made up your mind.
'F-fine. J-Just... Ugh. I-Ill chose the o-option without the s-soul lookin'
He gave another chuckle. With how close he was already, you could feel his
entire body move and especially his chest vibrate with sound.
'aight then. one more thing though - you wont hold against me what i do in that
hour, k?'
Fear was still clutching your chest, but you bravely pushed it aside and
straightened your back.
'O-Only if the s-same g-goes for me'
'it does'
He lightly stated. You didnt know what he was going to do. What in hell could
he be planning? You felt absolutely clueless for the first time in your entire
life.
'alright... im still going to say sorry for this in advance, but...'
And then suddenly, without any warning, his right hand that had been resting on
your stomach peacefully moved away from its position and went on to press
itself between your legs. You gasped and a quiet moan came out of your mouth
uncontrollably, and you squirmed a little as his fingers began massaging your
vulnurable place through the dark gray leggings you had on today.
The situation was so ridiculous that you just wanted to laugh. All this time
you had been afraid that hed throw you out if you told him you liked him, and
in order to keep that a secret, you agreed to a trade in which he would prove
that he at least wouldnt be disgusted with you. He may only think of it as
play, he probably didnt really love you, but still.
You bit your lip so hard you knew it would bleed any moment as he slowly pulled
his hand away. You thought about how he wouldnt hold anything against you
either, smiled and then whipped around to press your mouth on his.
He seemed even more surprised than you a moment ago, but didnt object in the
slightest as your mouths clashed and worked together, your tongues playing with
one another. Your wildest fantasies and dreams were coming true this very
moment, and it felt a hundred times better than you could have ever imagined.
Your feet were on the floor, steadying yourself and giving you a chance to put
even more pressure onto him. Your hands were grasping the back of his skull,
his right hand from before was holding your butt tightly and his other one was
slowly sliding up and down your side, playing with the hem of your shirt
sometimes, but never diving under it.
After the great moment of the first heat was over and your mouths naturally
parted so you could catch your breath, you let your knees stand on either side
of his legs and then lowered yourself onto his lap. You were both looking at
each other, panting. Sans' entire face was completely blue by now and you were
sure that you didnt look much better in terms of your red shading.
You couldnt help yourself: You laughed. It began with a snort, but it didnt
stop there and you just started laughing. He joined in after a moment and
seeing him so happy made your entire being feel like it was on some sort of
perfect drug. And maybe it was.
'oh god... it feels really hot to have ya over me like that, ya know? but as
much as id like to fuck you right now, i have one more thing to do'
'What the hell could be more important than-'
You suddenly felt his hand move from your behind to your chest, and when you
realized what he was doing, it was already too late.
The feeling of being completely exposed all over washed through you and you
shivered against him as he took a good look inside your soul, searching out
everything. The moment still didnt last long though, but when he removed his
hand, you were gasping and you felt more embarressed than in your entire life.
'You... You d-dirty... cheater, you! ...I c-cant b-believe... you saw... all
of... that'
You were speaking inbetween pants, clinging onto him but at the same time
wishing to pull away. But you couldnt, you just couldnt. As long as he didnt
tell you to move, you were glued to him like a magnet of the opposite pole.
And he knew that now. He knew every single dream that you had about him, he
felt your fear of being rejected as if experiencing it first hand. He knew how
much you adored him, he knew every single one of your kinks and embarressing
little secrets. If your mind wouldnt have been filled with only him at the
given moment, he'd known your entire life story.
He knew what turned you on the most, he knew how unbelievably amazing he looked
in your eyes, he knew exactly what you wanted him to do. He knew how hot you
thought of him, he knew about every single time you had touched yourself to the
thought of him. Most if all though, he knew how long you had waited for this
and how fucking much you wanted him to fuck you. He knew how much you needed
him with you right now.
The wide grin on his face told you that he didnt mind your thoughts at all,
rather seemed mischevious about having read them, and you just wished you could
slap him across the face, but you couldnt because he only had 1 HP. And even if
he'd threatened to kill you, you wouldnt dare risk hurting him.
'oh. my. god... youve waited for what, one fucking year already? what the hell,
juv! we could have been doing this about 11 months ago! you are such  a
pushover when it comes to this'
Feeling clear offense in your chest, you stared him intently in the eye.
'Me and a pushover? Yeah right. Why'd you think I wou-'
Before you could finish your sentence, he had his Lips pressed against yours
once more. You didnt mind being cut off for like the third time at all. He was
right. You two had more important things to do than talk.
Hungrily kissing him back, your hands moved from his skull down to his spine
and then slowly wandered all over his upper body. He was similair to a human,
but you still had to know where to touch when it came down to it.
Analyzing whenever he moved differently or you got a reaction out of it, you
found the best spots quite quickly. He was sensitive in general, that you knew,
and the more skin would cover a certain spot or the more important for his
survival it was, the more would he react to it.
He didnt hesitate to shiver, squirm and moan as you slowly began teasing him
just a bit by having your hands touch his spine just the right way. You were
beginning to move over it slower and slower and you felt him squirm even more.
You heard his whispered pleads to go faster, but you ignored them.
Your lips parted once more and you let your hand slowly move further downwards
towards his ribcage at a steady pace, but stopped abruptly as your hand touched
his shirt. Resting your fingers there for a moment, you then began moving along
it, giving a purr as his breathing hitched significantly and his hands gripped
you tighter.
'oh god juv... why the hell are you doing this and how ? you should be freaking
out  judging by your soul!'
You wanted to just give a light chuckle and continue, but the hand at your
waist decided otherwise and slid under your shirt at an agonizingly slow pace
and you had to try quite hard to not start begging him to reach further.
Because that would mean he won, so in turn, you let your other hand grasp his
lowest rib by going under his shirt and go against it teasingly.
He moaned out and the sound was like music to your ears, like the most holy and
beautiful sound you had ever heard. You had heard similair things from videos
you watched when you were bored, but they just werent the same as this. And you
wanted to hear more of this, more of his  sound.
And that made loosing in a time like this an easy and open option, so you
pressed yourself closer and let your hands unzip his jacket. He sat up a bit
and helped you move it off. You threw it to the ground, and just as you did,
you felt him starting to grasp your leather jacket. You threw it off and to the
ground behind you carelessly as well. Your hands immedietly went to study his
now completely open arms by sliding along the two bones on each.
He immedietly went on to pull your shirt over your head, and you didn resist as
you lifted your arms to help him. Just as you were done, his hands shot forward
to go over your entire upper body, to slide over it and keep touching it
everywhere. You moaned out in response and kept your arms relaxed so he could
reach everything.
His hands kept travelling from your hip to your stomach across your sides along
your back and then over your chest over and over while your hands were both
under his shirt and still teasing his lowest rib. One of his hands stopped
right under your bra, and after a moment, gripped under it. You gasped and
moaned before he reached to your upper back and threw it off you.
'Dont you think this is a bit too one-sided for now?'
'hey. we made a deal that i do whatEA-'
He couldnt finish as you pressed yourself against him as hard as you could and
began moving over him at the same time, putting the fact that he still had his
shirt on into the open and obvious, but apparently also turning him on much
more than before. You two were going too slow for your taste.
'Oh? Did we now? And what part of it stated that I cant fight back or do
whateverI  want to do?'
Without waiting for his response, you ripped his shirt upwards and he shivered
and made more of his beautiful sounds as he helped you get it off. You didnt
wait to start travelling everywhere while his hands went on to cup and move
your breasts, and after having showed him how much you enjoyed it, you had an
idea forming in your head.
You were already moving your hands all over his ribs, and he didnt stop moaning
and squirming, much to your enjoyment. But then you just smiled and decided to
lick over one of them. He had seen all of your kinks already, so why bother to
hide anything?
He gave out a much louder moan than before, not trying to hide his pleasure in
the slightest. So you slowly began licking all over his entire ribcage, feeling
him squirm and hearing how he was begging you to continue in a hoarse voice.
His pleads were turning you on so much that you couldnt help but go faster, and
soon he was gripping you tightly and panting heavily.
'fffuck, i-im gunna, oh godjuv!'
You decided it would be too cruel to leave him hanging, so you gave his most
sensitive, lowest rib another good, quick lick while letting out a loud moan
and he was over the edge before either of you even got to get their lower body
free from clothing.
He got even louder and began gripping everything in his sight tightly, nearly
screaming out. You were glad that your neighbours were used to a lot of loud
sounds from your taste of music and had stopped complaining about it years ago.
When he was over the edge, he flopped back, panting, but you growled and
whispered in his ear.
'Were not done yet, Boneboy'
He shivered at your words and then reached out to your hips, letting his thumb
go a bit under your leggings, but hesitating. Giving an annoyed sound, you took
one hand off him and guided his passive hand between your legs while beginning
to loosen your piece of clothing off yourself with one hand. You needed him
NOW.
He gave you a shit-eating grin when you looked at him and then began pulling
your leggings and panties off at the same time. You kicked them off and then
shoved him into a better position so he was under you. Letting your hands go
for his pants, you thought of what to expect at first, but then just decided
that you would find out now. Even if it was just bone, it should definitly be
the most sensitive spot of all.
To your dirty surprise, you found just what you needed to work with. There was
a blue, glowing member there, and it looked ready, but you didnt want to go
THAT fast.
Hovering above him, you guided one of his hands to your most vulnurable spot,
and without hesitation, he let one of his Fingers inside you.
Fuck yes.
Your monas got twice as loud and you started moaning out his name. Your burning
desire eased for a moment only to come back twice as badly. He let a second
finger in, curling and moving it just right to get you squirming and begging
for more.
When he let the third inside you as well, he let them slowly slide in and out a
bit to tease you even more, and your whispered pleads got a bit louder.
'Oh god... Saaaans... Please just... Oh goood...'
Deciding that he would want to go for it, he let his hand slide out only to let
the tip of his member lightly scrape your entrance. Oh no. You werent having
any of his shit right now.
Lowering yourself onto him, you grasped on to eachother as you both cried out
one anothers names,  as sans flipped you both over using his magic and began
thrusting inside you, now on top.
You didnt mind the change in position as you felt yourself come closer and
closer to going over the edge, and when he was fucking you so hard that it was
really beginning to hurt, you came for him, crying out and gripping him tight.
He let you ride out your orgasm and seeing you like this made him come again
himself. After a few minutes you both collapsed on top of one another, panting,
blue and red all over your faces.
'Fuck yes. That was... amazing. Dont think Ive ever had this much fun with a
guy in one evening before'
'no? too bad. because we, well, rather, you, are not done yet'
You gave him a curious look as he heaved himself up and his hands slowly began
travelling over your body.
'Hehe. Sorry, too tired to move right now'
'you dont have to'
'What? Why not?'
'hey. i came twice, remember? i am definitly going to make this fair, so just
lay back and relax'
'Thats sweet and all, and I really appreciate it, but arent you tired after all
that?'
'yeah, but monsters are just more durable in things like this'
'Oh? So yo-EEE!'
You squeled out as one of his fingers dipped into your still sore and now twice
as sensitive folds. You let yourself sit up a bit with your elbows behind you,
but sans used his magic to push you back into a laid back position. He growled
and you got the warning that you had better lie still.
You were beginning to moan again as he was going slower this time, careful to
not get you into any pain. You were slowly getting back into the mood of it as
he let his other hand go over your breasts, neck and waist.
'god, your so fucking beautiful when your like this, you know that?'
You wanted to shake your head, but he shushed you by lowering himself onto you
and kissing you with care and much less hungry than last time. Your heart began
beating out of your chest. Nobody had ever been this considerate of how you
felt, and it made you want to spend the rest of your life with him.
Your tongues played with one another lovingly and when he pulled away, his
pupils were literally little, white, shining hearts. Then he stuck his tongue
out and licked along your neck. You let out a moan and squirmed, and he slowly
let a second finger sink into you while licking along the other side of your
neck.
He slowly began licking all over you, and you knew you were enjoying this a bit
too much, but you couldnt help your reactions. It didnt take you too long to
come this time, especially since you were thinking over the fact that he was
caring for you so much, and not allowing you to lift a finger.
He let you ride it out, and when you were done, you could just fall asleep
right then and there. As little space as there was on your couch, he still
managed to lie down next to you. You felt his warmth beside you vibrate a bit
as he used his magic to lift a blanket over and cover you both before moving
you into a tight embrace.
You sighed happily and huddled closer to him. You were so exhausted you could
feel your eyelids falling down heavily. You heard him mumble something, and you
forced your eyes to open.
'Hmm? What was that?'
'just wanted to say this aloud, but... i, uh...'
You chuckeled and let your head rest on his shoulder.
'I love you, Sans'
He sighed in relief, relaxing and his soul calming.
'love ya too, juvel'
 
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