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Sans was running out of places to avoid Papyrus. Boss had found him under his century station, hiding in a pile of snow in the woods, at Grillby’s, under his bed, and even in the bunny who ran the inn’s bed. That last one had been awkward, apparently Papyrus didn’t care that Sans was busy slutting the bunny monster out, he physically kicked her off of Sans and dragged him out with his pants around his knees. And while Sans loved his brother, something he’d die before saying out loud, he couldn’t stand following him around and listening to him rant about “the importance of always being vigilant” and “the possibilities of a human wandering around and causing trouble”.
That's how he found himself at Muffet’s bakery. While he wasn’t particularly fond of the spider queen, he tolerated her enough not to kill her and she returned this sentiment. Plus, Boss would never think to look for him here, he wasn’t a big fan of sweets. It was extremely early so he was one of the three monsters present in the dining area. He took a seat in a booth near the window and shut his eyes to finally get some sleep.
He was at peace for all of 20 minutes until he was woken up by a squeak. He just couldn’t catch a break could he. With an annoyed sigh, Sans cracks open an eye socket, fully ready to beat whoever thought it a great idea to disrupt the first nap he’d taken all week. It’d been awhile since he felt blood drip from his claws and he wasn’t afraid to admit he missed it. Sure, Muffet would definitely kick him out, but it would be worth it. His soul itched for another hit of LV.
He froze when he was met with the prettiest plum colored eyes he’d ever seen. In front of him was a moth monster, she looked to be half his height. Thin white fur covered her brown skin, except around her throat, trailing down into her cleavage, and joints where the fur got thicker, like puffballs. She had a long, thin antenna that sprung up from her head of coily white hair and dropped down in front of her face to her shoulders. She wore a fitted, dull yellow sweater dress and scuffed brown boots, behind her was a pair of iridescent wings, covered in a thin layer of plum colored fur and innervated by silver veins. They shivered behind her, producing a quiet buzzing sound.
She stood there clutching a notepad to her plump tummy, shaking and on the verge of tears. She smelled like a fucking dream, all earthy flowers and dried fruit. Poor thing was probably startled by the annoyed glint in Sans’ scent. Little bugs like her should be terrified of big brutes like him.
He never thought he’d meet his soulmate, but the purring in his soul told him to never say never.
…
(y/n) was visiting her cousin Muffet at the bakery for the weekend. It wasn’t often she ventured out of her little nook nestled in a cliff in a waterfall. The ever growing eco flowers made it so she never had to go too far from her house to eat. Plus, her solitary lifestyle is one she cherished. Muffet saw this differently though. She thought (y/n)’s homebody tendencies were unhealthy and “further weakening her already pathetic constitution for confrontation”.
Muffet wasn’t wrong, the thought of having to talk to, Dreemurr forbid defend herself against, others made her want to crawl into a ball and die. She was an insect, insects don’t fight, they flee. But fleeing can only get you so far in this kill or be killed world. So Muffet dragged (y/n) to her bakery and forced her to work as a server for a few days. The bakery’s average clientele was confrontational, but never physically violent. Perfect for (y/n) to practice “not being a doormat” as Muffet so eloquently put it.
(y/n) tried her best, but it was like all the customers could smell her fear, which they could since she never got the hang of masking her scent. Several orders went unpaid for because she couldn’t open her mouth to ask. They always smirked at her on the way out the door, knowing she wouldn't come after them. She lost 134g covering those bills. That's how she found herself curled up in a ball under the front counter in the early morning.
The bell of the door has gone off 3 times now, so there were definitely customers that needed serving, but (y/n) couldn’t bring herself to move. Muffet was busy counting money in the back office and left the bakery solely to her. She’d hate to disappoint her only family, so with a deep breath she peaked at the dining area.
A quick scan showed the monster kid that visited often, two deer monsters on what seemed to be a date, and a skeleton.
A SKELETON??!!
There were only two skeletons in the whole underground, both were bad news. (y/n) could already see her death play out in her head. She’d go over there, wake him from his nap to take his order, then he’d be pissed and use those terrifyingly sharp teeth and claws to hold her down and rip her delicate wings from her back to immobilize her, then he’d throw her around for a while, laughing viciously at her feeble attempts of defending herself. After he had his fun he’d rip her throat out with his teeth and leave her dusting body on the floor of the bakery.
Despite the incredibly violent nature of her fantasies, they sent a shiver of pleasure down her spine. A little voice in the back of (y/n)’s head was desperate for the pain those teeth and claws would inflict on her. What type of disgusting pain slut must she be to get off on the thought of one of the most infamously brutal monsters in all of the underground killing her. She didn’t even know his name and here she was, wide eyed staring at his resting face.
It was fine, he was seated in the corner booth so she’d just go serve the other tables and avoid him at all costs. The monster kid was always the kindest to her so she'd make a beeline straight to them. Grabbing her notepad, she steps out from the safety of the counter and begins walking. Halfway to her destination, her sensitive nose was assaulted with the scent of burning wood and spicy meat. A scent that made her wings buzz in fascination. And suddenly her legs changed course as she went racing towards the source of the mouth watering scent. The skeleton.
(y/n)’s mind was a flurry of “nonononononono pleeeease, you’re gonna get us killed” and “yeeeeeeeeeeessssssss, let the brute tear into our skin and fuck the wounds with his hot, heavy cock”. On the verge of tears, she stopped in front of his slumped form. His eye sockets were covered by the furry hood of his black jacket, but his shark-like teeth were on full display in a threatening grin that drew attention to the one golden fang that gleamed in the bakery’s light. He wasn’t snoring, but adorable little “z”’s floated around his head, indicating he was asleep. He wore a red turtle-neck sweater under his jacket, black basketball shorts, and red sneakers. With his hands shoved in his jacket pocket and the all around laidback vibe he gave off a stupid monster would think they were safe, but (y/n) isn’t stupid.
This is fine, she just needs to get his order and go back to the counter to hide for the rest of her life. She tried to get out a “Hello, can I take you order”, but all that came out was a high pitched squeak. A sound she immediately regretted making as the skeleton tilted his head back and cracked a single socket open, revealing the brightest, most beautiful red light she’d ever seen. Her antenna twitched with the want to rub themselves inside that socket, get as close to that light as possible, but doing that would be begging him to rip the sensitive appendage from her head. Something she should be incredibly opposed to, but wasn’t.
(y/n) couldn’t do this, his scent was too strong and was clouding her judgment. She turned to run, but strong claws locked around her thigh, right under her ample bottom. The sudden contact made her heart skip a beat and she passed out.
…
Sans rushed to catch his poor bug as her body went limp. He hadn’t meant to scare her, but seeing her turn away from him made him desperate for her to stay. The feel of her juicy thigh in his hand made his cock twitch. She was so much smaller than him that his hands could fully encircle her waist, of course this was more of a testament to how big he was rather than how small she was. She was no skinny bitch, her body was full and curvy, just how he liked it. He got the urge to sink his teeth onto the meat of her ass until he drew blood, but that would have to wait because the other patrons of Muffet’s bakery were staring at him and filling the space with the scent of fear.
Muffet must have been alerted by the scent because she came rushing out into the dining area, ready to attack.
“What are you doing,” she screamed, “put her down this instant you brute!”
Sans was tempted to kill the spider bitch for demanding her release his mate to her, but he took a breath to think. Muffet has never worked with others before and her deep beneath her furious scent was worry. Plus, his mate has shown to be incredibly jumpy so for her to be comfortable working with the spider must be significant. Also, they were the only two insect monsters in the whole underground that followed about the same body type, if he had to bet money on it he’d say they were related somehow. Killing his mate’s relative would not be a great first impression.
“Didn’t mean ta scare her,” Sans explained, “she’s my mate, I’m takin’ her wit me.”
“Her mate?” Muffet asked incredulously
She rushed forward into his space and took (y/n)’s face into her hands and pulled her close. Her six eyes moved out of sync as she examined her for any signs of true harm. Finding none, Muffet sighed and stepped back.
“Fine, but you must be gentle with her, she is delicate, not a drop of LV in that one.”
Muffet rushed around packing some of (y/n)’s favorite treats and grabbing the weekend bag she brought with her to the bakery. She rattled off information for her care as she shoved him out the door. “She can’t eat meat or solid foods” and “keep her away from hot light sources” and “be sure to brush her fur every night or it’ll mat”, on and on and on.
“Bring her home to me unharmed or I will hunt you down and use your bones as fertilizer for my cousin's pretty flowers” was the last thing Muffet said to him before slamming the doors shut and locking him out, mumbling about him “scaring her customers”.
He clutched his mate to his chest and took a “shortcut” home. Through his front door he could hear Papyrus yelling at his cat, Doomfanger, about stealing his bone attack. Good, if he was distracted it would be easier to get his mate up to his room. He could just shortcut there, but he’s tired and tired shortcutting is how you get stuck in walls. He shifts his little moth behind his back and steps in the house, keeping his front facing the kitchen where Papyrus was.
Sans almost made it to the stare when Papyrus’ head shot out of the kitchen entrance, glaring daggers at him.
“SANS YOU INSOLENT TRASH BAG WHERE HAVE YOU BEEN”
“Was uuuh … dealing wit sum trouble ‘n hotland” Sans struggled to come up with a believable lie, red sweat dripping down his bones, “sum dragon monsters talkin’ big ‘bout how they could take ya ‘n a fight, had ta knock sum sense inta ‘dem Boss”
“IS THAT RIGHT,” Papyrus’ eye sockets narrowed at him, “WELL THEN I SUPPOSE THAT IS ACCEPTABLE, BUT NEXT TIME YOU BETTER BE AT YOUR STATION BY 6 AM SHARP OR I’LL KNOCK ANOTHER TOOTH FROM THAT EMPTY SKULL OF YOURS”
“‘Course Boss, won’ happen again”
Sans was just about to taste freedom when a whimper sounded from behind him and he felt the wet heat of a tongue run up the back of his spine. Was she … licking his sweat? Dreemurr help him, it would be very embarrassing to pop a boner in front of his brother. Of course the little whore would get him all riled up at the least opportune time.
“Mmmmmm tastes like cherries” (y/n) mumbled, still half asleep and wrapping her surprisingly long tongue around Sans’ neck to get more of his sweat.
“SANS … WHAT IS THAT?”
“Ummm … nothing?”
Papyrus steps closer and pulls (y/n) from his arms, dangling her between them by the fluff at the back of her neck. She stirs but doesn’t wake, completely unaware of the danger she was currently in. Looking at her, Papyrus seemed to calm a little, but still sent Sans a “your ass is grass” look.
“THIS IS A BUG, YOU’VE BROUGHT A BUG INTO MY HOUSE”
“Well … ya see … she … I-”
“STOP IT WITH YOUR SPLUTTERING, IS THIS ANOTHER ONE OF YOUR DISGUSTING HOOK UPS? WHAT HAVE I TOLD YOU ABOUT BRINGING YOUR WHORES INTO THIS HOUSE AND WHY IS SHE UNCONSCIOUS?”
“She ain't no whore,” Sans growls up at papyrus, ripper (y/n) from his grasps, “she’s my mate now stop yellin’ you’ll scare her”
“YOUR MATE?!”
“Yeah, is that a problem?” Sans prayed that it pretty please wouldn’t be a problem. He could take his brother in a fight, but he really didn’t want to.
“WELL … YOU BETTER TAKE CARE OF HER. THIS IS YOUR RESPONSIBILITY AND I WON’T BE PICKING UP YOUR SLACK ON THIS. I SWEAR TO DREEMURR IF YOU FUCK THIS UP I WILL NOT HELP YOU FIX IT THIS TIME.”
Papyrus kept ranting as he turned his back on Sans and made his way back to the kitchen. That … almost sounded like a blessing. Like Papyrus was trying to be kind in his acceptance of Sans’ mate. Dreemurr, was their relationship so iffy that the mere hint that Papyrus didn’t absolutely hate Sans’ mate made him want to cry?
Whatever, that's something for him to agonize over later, after he got his mate settled in. Sans carried her up to his room and gently laid her out on his bed. He goes to set her stuff down on his dresser when he realized it's completely covered in trash. So is literally everything in his room. He couldn’t have his mate wake up to crumple rappers and empty mustard bottles everywhere, so he rushed around to gather all the trash and brought it to the kitchen trash, completely ignoring Papyrus’ smirk. When you got back to his room his mate was sitting up in the bed, rubbing the sleep from her eyes.
…
(y/n) woke up in a dark room, on a mattress on the floor. Ok so, obviously she had been kidnapped. It was weird she wasn’t chained to anything, but she guessed if someone was strong enough they wouldn’t need to restrain their captive. They wouldn’t even need to be that strong since she’s so pathetic. Oh Dreemurr she’s gonna die. What happened? Why does her tongue taste like cherries? The last thing she remembered was being at Muffet’s and absolutely shitting bricks over that skeleton.
The skeleton.
Dreemurr noooooooooooo, he must have taken her because she woke him up. Why couldn’t she just leave well enough alone, why did he have to smell like sin and play so well into her masochistic tendencies. Now she was gonna die and it would only be a little hot. She should have never listened to Muffet, she really missed her little cliff outcove. Force her cousin out of her comfort zone then let her get taken, some family she was.
The door began to open and in stepped the skeleton from the bakery, just as she suspected.
“I’m so sorry for waking you up,” (y/n) begins to cry and falls to her knees in front of the skeleton, “please don’t kill me, I wouldn’t even give that much EXP”
He stared at her in surprise, reaching down to gently stroke her tight coils.
“I aint gon hurt ‘cha Bug. Stop ya cryin’”
“R-really?”
“Really, now get off the ground like dat, you’ll hurt your knees.”
(y/n) really shouldn’t have believed him so fast, but she never was the smartest moth in her flutter. Instead of getting up off the ground, she launched her full weight into him as she clutched his leg in a tight hug and nuzzled her face into his thigh. He didn’t even budge at the impact, just stared down at her with a dark look to his glowing eyelights. Even brighter in the darkness of the room, they made her want to crawl into his eye socket and live there forever. Like only a creep would want, (y/n)’s mind helpfully supplied.
“Ya doin’ that on purpose, Bug?”
“Doing what?”
“Teasin’ me,” his grip got tighter in her hair, “almost like your beggin’ fa me to shove my cock down ya throat, all teary eyed and grovelin’”
His sharp grin stretched wider as he pulled her head back enough to expose her throat, where her scent glands resided. The realization of the position she was in caused her scent to take a sharp turn into arousal. Her heavy tits were squished against his calf, the feel of hard bone on her nipples even through her sweater was delightful. Her weeping cunt was pressing into the toe of his dirty sneakers, nudging her sensitive clit. Even her nuzzling seemed less innocent, a red glowing and the harsh outline of his member in his shorts leg right next to her face showed her exactly what all that groveling had done for him.
She flushed a beautiful plum color and closed her eyes to hide from her shame. It took her all of 5 seconds to throw herself at what was definitely her captor, just like a slut. Even worse her mouth began to water as her mind supplied her an image of what exactly him shoving that beautiful glowing cock down her throat would look like. Dreemurr, she was pathetic.
“‘M sorry” she whimpered, her wings loud buzzing filling the otherwise quiet space.
“No need ta apologize,” he purred, “wouldn’ really be mates if ya didn’ want me right?”
“Mates?”
“Yeah Bug, yer my slutty little mate”
Mates? Was this big skeleton her mate? Was all that depraved thinking just her soul wanting its mate? And she didn’t even realize it. She was about to open her legs to someone who she thought was a complete stranger. She really needed to get her shit together, was she stupid or something? This is incredibly embarrassing.
More tears spilled from her eyes as she nuzzled him harder. Her antenna came down to softly caress the outline of his twitching dick through his clothes. The smell of him sent shivers down her spine and through her wings, their buzzing getting stronger. The feel of her delicate appendages molding to the shape of his cock caused him to hiss and yank at her hair.
“Movin’ a lil fast there Bug, whats yer name”
“(y/n)”
“What a pretty name Bug, ‘m Sans, now go get in the bed so I can use yer mouth yeah”
She crawled to the bed, fearing she’d get light headed if she tried to stand, and positioned herself on her knees on the bed facing him as he stalked his way towards her. Reaching in his shorts he pulled out all 8 inches of his manhood. Good thing bugs don’t have a gag reflex. He gave the glowing appendage a few strokes as pushed his clawed thumb against her plump lips.
Instantly she opened for him, tongue out opened as wide as she could go. Bringing the tip to her hot, wet tongue, Sans fisted his claws in her hair, the tight grip drawing more tears from her eyes. In one thrust he seated himself completely down her throat with a deep growl. She was full blown crying now, throat burning from the stretch, antenna wrapping around his ribs for purchase as he pulled out to the tip and slammed home once again. Over and over.
(y/n) was getting lightheaded, but she wouldn’t dare stop him. This was the best she’d felt in ever, broken and used like a toy, less than a person, just a cocksleeve. Her pussy leaked a puddle of slick that sank into the mattress. The slight rub of the sheets against her clit had her close to cumming. But then she felt something sharp against her wing.
Without her notice, Sans had pulled her wing from its resting position up to his mouth. He had his razor sharp teeth around the tip of her delicate wing. It was a clear threat, a threat to hurt, to severely main, to turn her pretty wing to dust and it shot right to her hungry cunt. She loudly moaned around his cock. Her hands reached between her thighs and rubbed harsh circles into her clit, sliding 3 of her fingers in and out of her hole, trying and failing to hit that spot that would make her crumble to pieces.
Of course Sans would never actually tear into her wing, but the threat got them both so riled up that there was no way Papyrus couldn’t hear them from downstairs.
“Damn Bug, ugh … take me so~ well, Ya gonna swallow fa me, ~fuck~, drink my spunk like the little slut you are, ugh”
“Mmhmm” (y/n) hummed in affirmation.
She opened up her throat as best she could, but some of the reddish clear seed still spilled from her wanting mouth. Running down her chin and into the crease of her cleavage. The taste of cherries rocketed her into her own orgasm. Thighs clenching around her hands in overstimulation. Sans pulled from her throat slowly with a groan. She fell back onto the mattress, a sharp pain alerted her to the small tear in her wing.
“You tore my wing,” she giggled and showed him the hole he left.
“‘M sorry Bug”
He laid over her and licked at the tear, sending more shockwaves of pleasure to her core.
“Better get ya cleaned up before Boss calls us fer-”
“SANS!!!! BRING THAT INSECT OF YOURS DOWN HERE, DINNER IS READY”
With a sigh, Sans picked her up and carried her to the kitchen, licking her clean of his cum along the way. In the kitchen Papyrus had two plates of lasagna and a cup of mystery green stuff set out. Sans sat and pulled (y/n) into his lap. He tasted the mystery liquid before letting her drink her fill. It was surprisingly delicious given the unknown contents.
Throughout dinner Papyrus grilled her for all her background details while Sans zoned out behind her. Turns out Papyrus was probably responsible for the dusting of over half her siblings, oh well she didn’t like them that much anyway. Other than that Papyrus talked about training her, calling her lack of LV a “disgrace to the skeleton’s reputations”. She wouldn’t tell him that no training was gonna get her past her tendency to faint when overwhelmed, not wanting to spoil his fun.
At the end of the night she helped Papyrus clean, it felt like she had a big brother, a real one, not like the ones she was born with who left as soon as they popped out of their chrysalises. Sans carried her back to his room. He seemed tired, but (y/n) needed his cock in her cunt now.
She presented for him, ass high in the air, face down in the mattress, wings full spread for his viewing pleasure.
“Ya sure Bug, used ya pretty hard earlier. No shame ‘n needin’ a break”
“Please Sans, need your warm cum for my clutch”
“What's a clutch?”
“Hush”
She grabs him by his shorts and pulls him down over her back. He fished his hard cock out of his shorts again, still damp from her saliva, and lined himself up with her entrance. The slide in was slow and left them both breathless. That slow pace didn’t last tho as he began full force pistoning into her tight hole. His tip pushed into her cervix with each pass, definitely leaving a bruise.
She pulled her soul from her chest and it flew up to rub against his face, practically begging to be united with his own. He chuckled as he trapped the floating purple heart in his teeth, pulling out his own soul to grant her wish. They circled around each other before finally coming together hard, like they were trying to merge into one. A red ribbon formed around them, signifying the soulbonds creation.
“Yess~ fuck Sans … mmmmm cum inside, fertilize my eggs please”
“What? Eggs?”
“INSIDE Sans pleeease~”
“Ok Bug, I gotcha, inside it is”
With one last grunt he reached up and bit into one of her antennae and slammed himself as deep as he could go, spilling his seed into her womb. It hurt like a bitch, but it was soooo worth it.
“Gonna tell me wat a clutch is now?”
“Its eggs, like moth babies”
“Oh”
A purr sounded from his chest as they slipped peaceful slumber.