Work Text:
Back then, it was a cold snowy night around where you lived, and being the dumbass you are, you decided to take a hike. You always enjoyed them honestly, but you didn't know you were going to trip and drop down into the underground.
A few hours after falling down, terrified, you met Sans right after Toriel (which you somehow survived, you don't know yourself), and honestly? You fell in love at first sight, and you sort of despised yourself because of it.
The love wasn't anything you exprienced before. Around him, it was so warm, so fuzzy, but without him you felt empty. And you think Sans felt too. Maybe even more, who knows. All you do know, is that he wasn't letting you go. Not with knowing how dangerous the rest of the underground.
His brother knew about you, of course. Not like Sans could've hide anything from him long, but also did the rest of Snowdin. And they all knew not to fuck with you if they didn't have a death wish. At least not while Sans was there.
After a few days of just kinda existing there, because he didn't allow you to proceed further into the underground, he kinda just took you into his room to stay there. You didn't mind really, nor care, but you were scared the two of you were going a little too fast for everyone else's liking, considering you being a human and blah blah.
You wouldn't say you were in a relationship by that point. He was still cold, he refused to touch you with you initiating it, but even then it had to be brief, and wouldn't even really talk to you much accept a few key words or sentences. He just kept you in his room, telling you to let him know if you needed anything before continuing to shortcut away, going on a patrol of something. It broke your heart a little, sure, but not like you could protest much without pissing him off.
One or two months later, and he was starting to warm up to you. Hugs and kisses were exchanged in private, preferably in the middle of the night quietly when everyone was already asleep. Longer, more playful and meaningful conversations happened between you as he started to slowly convince himself you weren't some pathetic little girl, that you were strong and resilient as you were and that his soulmate was actually pretty fucking cool. Not that he didn't adore you before, but know he knew you weren't just made of glass and could handle some damadge.
With this newfound idea of you, he started letting you out, with him of course so he could cave anyone's skull in that looked at you wrong. These moments usually consisted of getting food, building snowmen or making snow angels. That's where his nickname for you started. 'Angel'.
Before, on the surface, you never did snow angels because the snow would stick everywhere, and it was frankly annoying. But the snow in the underground was fluffy and light. So of course you made up for lost time. And you did it so much that Sans started to tease you about it.
Month four and five was when everything snapped together almost seamlessly, for the most part. Sans finally explained what were the feelings we felt, courtesy of the library having all the information. We never really touched the subject aside from the occasional complaints about how much it clouded your chest and made it hard to breathe.
He said you were soulmates, created for one another, like how a pair of socks are made to match eachother. They are their own beings and entities, but they fit together seamlessly. He also explained what soul bounding is, and we both agreed that that's something we both aren't ready for.
It was comforting to know what these feelings were more specifically and how it affected you two, and honestly? It made your mind feel clearer, less crowded.
He also explained why he acted like that at the start. According to him, he felt confused as to what he was feeling, but he had this possessive need to keep you close no matter what. But he didn't want to scare you away and he didn't want to change his morals and behavior so suddenly, even if it felt correct.
Years of being alone and constantly criticized made feel like not only did he not deserve you, but that he didn't need you. But now, with spending time with you and realizing what this was, he knows better then to push you away.
And he recently even let you get a part-time job at Grillbys! He knew deep down how useless you felt for not being able to contribute anything to the household, and how nervous it made you feel about being around Papyrus.
He'd been a total asshole to you since day one, only recently started warning up to you when he found out you also enjoy puzzles. Doesn't mean he was any less of a dick, but now he at least tolerated you enough to cook for you and let you sit at the table.
Yet it still bothered you that you weren't friends and how you couldn't really help around accept for the usual household chores, and Sans knew how it ate at you, so he compromised and struck a deal with Grillby.
Anyways, back to the point: the job! You worked mostly every other day, starting with Monday, and you honestly liked it like that. The job was simple, making occasional drinks and serving food, nothing hard. Yet, with how the monsters in the underground were, it was mostly a lot of some weird fetishy cat calling or innapropriate touches you had to immediately shut down, that thankfully didn't even happen when Sans was there.
He always made sure to watch you, and even if he wasn't, he could just feel if you were uncomfortable by being near you. He could smell the anxiousness off of you, which always weirded you out, but you weren't complaining, because each time Sans would find out someone bothered you, he would knock the teeth out of them. And you usually watched, because who doesn't like watching their soulmate beating the shit out of a guy?
Grillby was usually in the kitchen, of course cooking food, but when he did see what was happening, let it be the cat calling or touching, he would defend you and reprimand the monster, sometimes even kicking them out if they had done it several times before. At least he somewhat cared about you.... probably because you made his job 10 times easier.
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Today was another tiring day at Grillbys. More monsters were coming to Snowdin and specifically to the bar to just... watch you work. Guess Sans couldn't keep everyone quiet about a human being in the underground for long, but honestly you appreciated he even did that. Yet the idea of more and more monsters coming made you weirdly pleased and anxious at the same time, more of the latter honestly. You would get paid more, yeah, but that also ment more monsters were staring at you and that didnt just sit right with you, especially not here where everyone wanted to get your soul.
You splayed yourself cross Sans' mattress weakly. You were going to have to convince him one of these days to buy a bedframe, for you and your backs sake.
After a short while of laying, you could feel a skeletal hand slowly run under your work shirt, slowly rubbing circles onto your back. You didn't even need to look up to know who it was, you knew it was Sans. You lazily rolled over, his hand now on your stomach.
"Why cha' movin', sweet cheeks? What, ya don't like m'touch? Got ya squirmin' all cute.." He teased playfully, his grin turning impossibly wider. You groan, rolling your eyes as you let him pull you into his lap. You were bitter about your day, despite your best attempt to hide it. But he could tell you were upset. He could always read you so well. "What's wrong, angel? More pricks at Grillbys again? They know that if they pick a bone to pick with ya, they have to pick one with me."
You scuff at that stupid pun, rolling my eyes as you shift in his lap, your legs now throw across his thigh. "Nothing really.. Just the same old, but now more people go there." You mindlessly mumble, your voice low as you draw circles onto his forearm. "Mm... 'm sorry to hear that, doll.. But hey, it's get ya more money, right?" He grinned, pressing his teeth against my temple, trying his best to comfort you. "Ya can quit any time, angel. 'll always be here.." He whispered low.
He secretly hoped you would agree on that idea. Would get the two of you more time alone, and he could have his way with you more... And do other things too.
"How about ya get alllll~ cleaned up and then 'll give you this bone, huh?" He laughed eagerly as you glared at him. "You've used the same stupid bone pun for the second time today." You murmured, punching his shoulder in playful annoyance, before getting up to the en-suit bathroom.
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He watched from the bed as you entered the bedroom again, putting your retainers in. "Do ya REALLY have THAT put that in your mouth?" He asked, taking off his shirt as you sat on the edge of the bed, slowly crawling to him on all fours.
"Mhm." You hummed. "Why though? So.. Impractical." "Because it straightens my pretty teeth."
He scuffed, crossing his arms as you sat beside him on the mattress. "Can you fucking finally buy a bed frame?" You groan, stretching and laying down next to him. "Fuckin' no." "Fucking pleaseeeee? Pretty please?" You grin, batting your pretty lashes at him and grinning.
He rolls his eyelights, grumbling about this as he pushes you down onto the mattress, rolling half on top of you and nuzzling your neck. He purred, the tension from his shoulders from the whole day leaving his body. His skeletal fingers run down your side as he firmly gripped your hip, leaving bruises behind.
"Sansyyyy..." You whine after a little bit. He kept squishing you, and considering he was not only double or triple your weight (not asking questions) and a bit taller then you, it wasn't really squishing anymorr, but it was crushing.
"Sans, Jesus fuck.. You're crushing my ribs!" You protest and Sans only squished harder before letting go gently. "What, dollface? Ya don't like being crushed?" He laughed, kissing your cheek as his hand wrapped around your neck gently, squeezing it just enough to get a squeak out of you. He would've hated the sound coming out of anyone else, especially a human, but considering it was you? His soulmate? He loved the sound. So submissive to him. And only him
"Sweetheart, may i?" He asked, voice now even softer then before as his hand slipped under your nightgown. He picked this out specifically for you, said it made you look like one of those angel dolls some monsters put of top of Gyftmas trees, if they celebrate.
"Mmmm.. Dunno. Will you buy the fucking bedframe?" You said while shifting so your arms are behind you, supporting your own weight.
"Goddamn ya, doll. Fine, we'll go pick out somethin' tomorrow. But don't expect 'm going to want anything pretty. I already tolerate your zebra print sheets." He retorts, sitting up and getting between your thighs, keeping you under him as he pressed his teeth against your neck, pressing rough nips there. You laugh, wrapping your arms around him.
Sans pulled away a little, just enough to rest his chin on your chest. ".. Don't ya really think it's stupid..? The bedframe. We'll only break it with how rough 'm with ya." He grinned, thinking he won this stupid debate.
"Then we'll buy a steel one. Or a titanium one." You reply, hands moving onto his shoulders as you rub them gently. "But—" "No fucking buts, Sans. My back aches.... But if you insist, I'm sure Papyrus won't mind sleeping on the couch." You grin, knowing you won this.
A low growl escaped from his vocals. He knew damn well that wouldn't in a million years, but he didn't even want to test that theory. Annoyed, he nodded his head, agreeing this time, pulling you impossibly closer.
".. Ya little bitch.. Fine, doll, you'll get ya precious stupid bed frame, but 'm not building it." He finally said, and you grin, knowing damn well that also isn't true.
"Cmere sweetheart, I want to feel ya 'round me." He hummed softly, pulling your hips even closer to his pelvis, his hard bulge grinding against your panties. You let out a soft whine, back arching back as he rocked his hips roughly. You look down at where you connected, smiling softly at him.
"Can I, cutie?" He grinned back, the small claws at the ends of his fingertips threatening to tear off your underwear. You slowly nod your head, blushing. "Just don't rip them off.. Not like last time." "Mmm.. I will. I can always buy you new ones." "Hey—" He smiled, laughing as he moved above you, pressing teeth on your forehead as he finally rips them off, throwing them somewhere, probably into the trash tornado.
You giggle, the sound sounding delicious to him as he caged you in. "Ya ready, or do ya need to be stretched out?" He asked, skull being nuzzled into the curve of your neck. "Mm... I want head. Does that count?" You mumbled, eyes closed as you pressed a tender kiss to his forehead.
With a russle and tussle of sheets, Sans moves between your thighs, kissing his way down, his spiky teeth grazing along silk and skin. Cold air teases your clit, making you whimper softly and your back to arch, hips getting closer to his face. Sans laughed, opening his mouth as he started to taste you slowly.
You gripped the sheets as his tongue teased you, slowly pushing inside your tight heat. "Dang, sugar.." He groaned against you, diving deeper into your folds. That earned a yelp from you, causing you to bite back a moan.
You were getting closer, but suddenly, he pulled away, his mouth drentched with your juices. Letting out a displeased whine, you glare at him, but before you can protest anything, he pulled his cock out, which made you shut up fast.
"Heh.. Like whatcha see, dollface?" Sans teased, circling your entrance weakly before sloooowlyy pushing inside you until you took it all. You let out small noises, as Sans waited for you to get used to the sansation, littering hickeys around your upper body in the mean time.
After getting the green light from you, he started thrusting, putting your legs on his shoulders so it would grant him deeper access. The two of you let out such unholy noises, you more then him honestly.
Suddenly, he wrapped a hand around your throat, gently squeezing it to get that squeak from you again, and when you did, he laughed. "Oh sweetie... Such teeth rottin' noises ya make.." He praised, continuing to rail into you. He didn't bother your wrists down by this point, knowing you wouldnt pull away.
His free hand slowly drifted to your clit, rubbing rough circles that made you clench. "Ohhh.. Good girrllll.. Clenching' around me like t' slut ya are.." He whispered in a low voice, looking down at the babbling mess you turned into just by his thrusts.
"Who do ya belong ta, sweet?" He asked between grunts and pants. He seemed to have his breathing pretty much in control, meanwhile you were struggling with all the light choking. "Y-you!" You managed to say, warning a lot of filthy praise from him.
Eventually, you two came. You came first, and hard, your legs twitching. And it honestly came so unexpected. Rattling off whatever words came to mind, you slowly came down from your high, and with a couple of strategic thrusts, Sans came too, fulling you up with magic.
Pulling you close, your legs now around his hips, he kissed you gently, rubbing your back. "Soo.... Fuckin'.. Good.. Good girl.." Sans purred, drawing circles on your skin, refusing to pull out just yet.
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The two of you now laid in bed, both of you showering after this. He still kept you close, of course. He always did that, especially after sex or anything so intimate. His cold bones helped you cool down your overheating body, which was nice.
Sans was in middle of some stupid pun probably when you spoke up.
"How.. How does the soul bonding actually work?" You ask, punching the air out of his non existent lungs with that comment. "Well, doll, uhm.." He stammered, flustered. "Fuck, I hate ya, ya little brat." He said, the grin on his face widening as he nuzzled into your neck. You laugh, rolling your eyes. "yeah, I love you too. Now spill the beans, I know you read up on it."
"Uhg, fine. Listen 'kay?" He said. "Basically, we show eachother our souls, they do some freaky ass shit, and boom. We're together forever." He quickly rattled off, flustered to talk about this so suddenly. His explanation made you nod your head, understanding.
But, before he knew it.—
"Hot stuff?— are ya fuckin' pulling my dick??" He protested when he realized you were fast asleep. He secretly hoped you would actually DO the soul bound, but he wasn't the type to wake up someone from their nap. So.. For now, he let you sleep in his arms, soon following you off into dream land.
Clemiepp Wed 23 Jul 2025 11:01AM UTC
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