Archive of Our Own ^beta

Chapter Text

It had been a while since Mettaton had time to masturbate. With the recent shows, his new manager Spamton being a real pain in the ass about schedule.. Mettaton barely had time to himself. That is, unless you count the time spent with his fiancé, Papyrus.

It was around 8PM, they were sat on Mettaton's bed. The robot being half laid on his pillows, with his knees together and his arms lazily draped over himself. The skeleton sat near the edge of the bed, talking excitedly about his time spent with the humans and Undyne. With a gentle move of the hand, like a dog, Papyrus shut his mouth. It was something that came up naturally, like Mettaton's quiet way of asking for a pause to speak himself.
"Darling." Mettaton spoke softly. His voice sweeter than sugar. Papyrus nodded, acknowledging that he was paying attention. "I've been *dying* to have some fun." Through half lidded eyes, Mettaton scoped Papyrus' reaction. The skeleton seemed to not really get what he was saying, just furrowing his.. Eyebrows? Not like he had any, but his eye sockets furrowed anyway as if he did have some.

"Alphys was a real dear and helped teach me to let off steam.. Whatever she did with my wires, it works." Mettaton gently put a hand over his chest cavity. He locked his fingers down, then opened it. Wires, messily put together to power his very being. Papyrus, being the cute idiot he was, only stared in awe.

Mettaton never showed this to anyone. Papyrus knew this.

"Will you be the kindest little puppy and help me?" Mettaton cooed. His voice dangerously low and seductive, like he was trying to reel Papyrus in with just his voice box. This worked, but.. When Papyrus moved to almost crawl towards Mettaton, the robot stopped him.
He spread his legs, showing Papyrus everything he could have asked for and more.

*Shit.*

"No, no~. You just watch, okay?" He said.
Papyrus nodded, sitting criss cross applesauce on the bed instead. His hands in his lap, looking at Mettaton. Despite not having blood vessels to blush with, he still did so, his magic helping in this situation. A gentle orange coating his cheeks.
Mettaton reached into his chest cavity. He slowly turned his pointer finger, wrapping a wire around it like spaghetti wrapping around a fork. He curved his finger, then pulled slightly. For a moment, his eyes malfunctioned, like a Disney animatronic, his eyelid twitched as his eye rolled back. I say singular eye because the other one is covered, of course.

Papyrus watched. His eye sockets wide in surprise. I mean, he'd never imagined this was how robots masturbate. He'd never even thought of anyone masturbating before, but seeing Mettaton so deep in his element, enjoying himself.. It was great! Educational, even.

With a few more pulls, Mettaton's thighs pressed together suddenly. He twitched, writhed. He was close.

"STOP!" Papyrus suddenly yelled out, pulling Mettaton out of his blissful state. He stopped, as told, and just stared at Papyrus. "What?" Mettaton asked. ".. NOTHING. I JUST THOUGHT YOU SHOULDN'T CUM YET. IT WILL BE MORE ENJOYABLE IF YOU STOP WHEN I SAY! NYEHEHE!" Now, if I told you Papyrus genuinely thought that, you wouldn't believe me. Which is fair. He had actually gotten into reading Kindle recently, and saw people really enjoyed orgasm control. So.. He wanted to try it.

Mettaton and Papyrus sat in silence for a moment, excrutiatingly long seconds passing by before Papyrus spoke again.
"PROCEED!"

And with that, Mettaton curled his finger around more wires. He continued playing with himself, pulling wires and pushing on metal plates. One gleaming leg kicked up in the air, humming as his mechanical fingers twirled one of his loose wires. Sparks fizzled with each twist, and he grinned. Not in a very attractive way like he wanted, he looked a little dazed now.

“Ahhh, darling… nothing feels quite like this. The thrill of touching my own… circuitry.” His voice lingered on the words, dramatic as ever. He let out a soft, deliberate sigh.

Papyrus was about to speak, but decided to stay quiet. Mettaton noticed this.

Mettaton smirked, tugging the wire until a faint spark hissed. “Tell me… should I keep going?”

Papyrus’s orangey highlights on his cheeks flared. “WHAT? I—WELL—YES, BUT ONLY BECAUSE I, THE GREAT PAPYRUS, SHALL DECIDE THE LIMITS OF THIS DISPLAY!”

“Mm. Limits.” Mettaton’s fingers curled around the wire, sliding it slowly through his grip before pausing expectantly.

Papyrus stomped once, raising a hand like a referee.
“STOP!”

Mettaton froze, tilting his head toward him, lashes half-lowered.
“…So commanding.” He cooed. His voice sickeningly sweet, though now slightly breathy.

Papyrus cleared his throat, trying to keep his cool.
“AHEM. YES. I AM IN COMMAND. NOW… CONTINUE! GENTLY!”

Mettaton obeyed with deliberate grace, drawing the wire through his hand, letting it coil and unwind with exaggerated flair. Each pause was drawn out, each movement precise, as though he were performing on stage, except this time, Papyrus was his only audience.

“STOP!” Papyrus called again, louder this time.

Mettaton let the wire dangle, his smirk widening. “You do enjoy this, don’t you?”

Papyrus waved his hands furiously, his voice cracking between indignation and fluster.
“NYEHEHEH! DO NOT BE RIDICULOUS! I AM MERELY… SUPERVISING! YES! SUPERVISING YOUR MASTURBATION.”
Mettaton had to suppress a laugh for that one.

A bit of back and forth ensued, especially with Papyrus wanting to really make Mettaton enjoy it when he did finally let him cum. Excrutiating minutes of playing with himself and having to stop abruptly just because this.. Loser.. Stupid.. Skeleton said so! It was humiliating, in a good way of course. Mettaton loved Papyrus dearly.

Mettaton was close again. He was writhing, his hands shaking with anticipation as he pulled and played with his own wires. He expectantly looked at Papyrus, but the skeleton only watched with a slight nod.
Oh.
*Oh.*
He can finally cum! It's felt like years of just toying with himself and getting himself close just for it to be ruined.. Now he can! He pulled and pulled, almost ripping out a wire in the process. He pressed down on a metal plate inside of himself, then.. It all came crashing down.
Sparks flew, steam erupted from his ears, his eyes malfunctioned, everything happened all at once, and it was the most enjoyable orgasm Mettaton had ever had.

"Darling." He said, his voice breathy and out of touch with his own usual flare. "Please join me in future sessions."

Papyrus nodded. "I WOULD BE DELIGHTED TO, LOVER!"

Chapter Text

The ropes cut deep into Spy’s wrists, pinning him with deliberate cruelty. Whoever had tied them — Pyro, undoubtedly — knew their knots well. Not tight enough to cut off circulation, no… just tight enough to remind him of his helplessness with every twitch of resistance.

The room smelled of old concrete, oil, and the faint, acrid sting of smoke that clung to Pyro like a second skin. The only sound was the mechanical rasp of their respirator, steady and inhuman, filling the silence with a rhythm that made Spy’s skin crawl.

He sat tall in the chair, legs bound at the ankles, back rigid against the wood. He would not show weakness. He could not. But the sweat prickling at his collar told another story.

Pyro stood a few paces away, head cocked as though studying some peculiar insect. In their hand, they twirled a simple lighter, clicking the lid open, shut. Open. Shut. A small flicker of flame briefly lit the lenses of their mask before vanishing into the dark.

“Mon dieu…” Spy muttered, his voice hoarse. He had meant to sound dismissive, but the tension in his throat betrayed him.

Pyro moved closer, silent but for the muffled shuffle of their boots. They knelt down beside him, so close he could see his own reflection in the warped, black glass of their visor. Then, without warning, they produced a cigar from their belt — his cigar, lifted from his own jacket. They rolled it between their fingers, inspecting it, before pressing it between Spy’s lips with surprising gentleness.

Spy’s breath hitched. He did not bite down. He did not dare.

A click, then flame. The tip of the cigar burned orange as Pyro held the lighter steady, the heat almost brushing his chin. He inhaled shakily, the taste bitter on his tongue. When he exhaled, the smoke curled into the narrow space between them — and Pyro leaned in to inhale it through their mask, as though savoring his breath itself.

Spy’s pulse stuttered in his throat.

They took the cigar back, extinguishing it with a gloved hand, and laid it carefully on the arm of the chair. Then came the toolbox. Metal scraped against concrete as they dragged it into the faint light. Spy’s stomach knotted at the sound, but in a way that wasn't entirely fear. No, more like..
Anticipation? Some kind of.. Arousal?

He felt his suit pants tighten a smidge.

One by one, Pyro removed items from within: a wrench, a blowtorch, a coil of wire. Each was laid out slowly, deliberately, as if the act itself was the point. None of them were touched yet. The spectacle was enough.

With each item removed and deliberately put into view, Spy's pants became tighter. A stiff, uncomfortable feeling arose. He swallowed spit his body did not swallow automatically. Like every "automatic" thing his body did was now fully manual. Breathing, blinking, swallowing.. It felt like he had lost all sense of humanity in a daze of arousal and desperation.

“Ah,” Spy whispered, his voice low and sharp, “so this is to be theatre, non? You wish to frighten me.”

No reply. Only the long, distorted sigh of the respirator.

Pyro picked up the blowtorch, thumbing the switch so that it hissed to life. A narrow tongue of flame cut through the dim. They let it hover inches from the rope binding his wrists — close enough for the heat to kiss his skin, to make the fibers curl, but never close enough to sever them. Their head tilted again, as if savoring his reaction.

Spy clenched his jaw, determined not to flinch. But his body betrayed him: a shudder rippled through his arms, quick and subtle, just enough to give Pyro the satisfaction they were looking for.

The flame died. The room fell back into darkness, save for the faint glow of the mask’s filters.

Pyro reached forward, brushing a finger along Spy’s collar, slow, deliberate. They tapped against his chest, once, twice — the same quiet rhythm from before. Then their hand lingered, pressing flat against his sternum. Spy could feel the weight of it, the heat that seemed to radiate even through the glove.

His breath caught in his throat.

Pyro leaned in again, mask nearly brushing his cheek. The sound of their breathing filled his ear — slow, deliberate, suffocating. He wanted to recoil, to twist away, but the ropes held him firm. And perhaps worse than the pressure was the absence of it: the way Pyro would hover, linger, and then pull back before anything broke.

The interrogation was not about pain. It was about anticipation.

And Spy, for all his skill in deception, found his composure unraveling thread by thread.

Spy’s chest rose and fell with careful restraint, every breath measured so as not to betray the racing beneath his calm mask. But Pyro could hear it. He was sure they could. Their silence fed on it.

The blowtorch was set aside with a clatter, replaced by something quieter. A long, gleaming knife. Its edge caught what little light there was, flashing cold against the gloom. Pyro held it just beneath Spy’s chin, tilting his head back a fraction. The gesture was intimate, almost reverent, as though admiring the line of his throat.

Spy forced his lips into a smirk, though his pulse betrayed him, hammering against the blade’s tip.
“You will not cut me,” he murmured. “Not you. You prefer… slower amusements.”

The only response was the rasp of the respirator, steady, deliberate.

The blade moved, tracing down his jaw, lingering against the corner of his mouth. Spy swallowed, the tiniest hitch of movement brushing his skin against cold steel. Pyro paused there, knife hovering, then drew it lower — down his tie, along the buttons of his vest, until the sharp edge rested against the ropes at his waist. Not enough to cut. Just enough to remind him.

A flick — and the knife was gone. Set aside as quickly as it had appeared.

Pyro reached back into the box, pulling free something unexpected this time: an ice pack, frost clinging to the plastic. They pressed it firmly against Spy’s throat. He gasped before he could stop himself, the shock of cold forcing a shiver down his spine.

“Bastard,” he hissed, though the insult rang hollow.

The ice trailed lower, across his collarbone, over the thin fabric of his shirt. Where it lingered, his body responded involuntarily — a flinch here, a tightened breath there. Pyro seemed to mark each one, cataloging the responses like data in some silent experiment.

Then the contrast came. A spark of the lighter, flame dancing back into being, held dangerously close to where the cold had just been. Spy’s skin prickled at the whiplash of sensation — sharp cold, threatening heat, both never quite touching, only hovering, teasing, promising.

It was unbearable. Not the pain, but the waiting for pain that never arrived.

As much as one would find in unbearably embarrassing, Spy was begging for some sort of release. He had known Pyro for ages, he knew the maniac would not give him such pleasantries. But.. He wanted to cum.

Spy shut his eyes, jaw tight. “You think silence makes you powerful,” he muttered. “But silence is nothing. It is—”

He stopped. Because Pyro was close again. So close the distorted rhythm of their breathing was all he could hear, all he could feel. The mask brushed against his ear this time, tilting as though they were whispering something just for him. But no words came. Only the sound, low and steady, consuming.

Spy’s fists clenched against the rope, not from pain — but from something far more unnerving: the way Pyro’s restraint, their refusal to push past the brink, made him realize he wanted something to happen. Wanted release, in one form or another. And Pyro knew it.

That was the game. That was the torture.

Chapter Text

The Homeowner’s house groaned in the night. The walls felt closer than they should, shadows leaning long across the floor.

Bar Guy sat stiffly on the sofa, the only steady rhythm in the room the rise and fall of his breathing. His human breathing.

Cashier Girl was across from him, knees drawn up in her chair, arms wrapped tight around herself. She trembled — but not from fear. Her anxious laugh fluttered in the still air as her eyes darted to him and wouldn’t let go.

“You’re warm, aren’t you?” she whispered, biting down on her lip until it whitened. “I can see it in you. The blood. The heat. It must feel so… good.”

Her voice cracked on the last word, but the crack was a tease, not a weakness.

Bar Guy shifted uncomfortably. “I told you. I’m human. That’s all.”

Coat Guy leaned against the wall beside her, his coat dripping faintly onto the wooden floorboards. His gaze slid lazily to Bar Guy, eyes narrowing, voice low and deliberate.

“‘All,’” he echoed. “That’s not a small thing. That’s rare. That’s precious.” He tilted his head, and for a moment his lips parted, the suggestion of a smile cutting across his pale face. “You must know what it does to us… standing this close.”

Cashier Girl’s laugh bubbled again, sharper this time, breaking the silence like glass. She leaned forward, palms pressed into her knees, eyes wide.

“He doesn’t know. He doesn’t understand.” Her words tumbled out in a rush, heavy with breath. “He doesn’t feel how different he is. How much we want to…” She stopped herself suddenly, teeth clacking shut. Her chest rose and fell, quick and erratic.

Bar Guy’s pulse hammered in his throat. The lamp flickered, throwing Coat Guy’s shadow over him — long, sharp, and heavy.

Coat Guy spoke again, his voice barely above a murmur, but it slid into Bar Guy’s ear like a secret.

“Maybe we should show him.”

The air went still, heavy and hot. Cashier Girl’s hands twitched, fingers curling against the fabric of her pants. Bar Guy couldn’t move. He couldn’t look away.

For one stretched, breathless moment, he wasn’t sure if they wanted to devour him… or something worse.

Bar guy stood up abruptly. Coat Guy did the same, and Cashier Girl followed. Their height difference immense, but it didn't stop the two visitors.
"Y-You know the homeowner is asleep." Cashier Girl spoke, her smile crooked and wrong. She reached out, gently brushing her fingers along Bar Guy's arm. He flinched at the touch, but didn't back away. He hadn't gotten the time to understand why he reacted like this. Not before his body reacted for him.

Coat Guy pressed against Bar Guy's back. The clothes caved too much, hinting at the void hidden underneath. None but Coat Guy knew this secret, though.
It was short before Cashier Girl was in front of him, slowly putting a knee between his legs. Coat Guy did the same, but at the back.

The grinding was slow, deliberate. Like the visitors knew exactly Bar Guy's weaknesses, his secrets, every little impure thought he'd ever had.

His dick hardened, pushing up against the fabric of his pants. Little known fact, he actually goes commando. No underwear, just raw dogging this apocalypse.
"I feel you hardening.." Cashier Girl whispered. She was quite a freak, in most definitions of the word. Both in bed and in day to day life.

Bar Guy couldn't help but grind forward, then back. It was like a rocking chair made specifically for his pleasure, both in front and in back held quite a pleasant visitor awaiting his desperation.
He let his head fall back, landing on Coat Guy's shoulder. Coat Guy only sighed. "Your body heat." He huffed out. "It helps the cold." Which was a first. The last days he'd stayed in this house, he hadn't stopped complaining of the cold to the homeowner.

Bar Guy didn't reply. He just huffed, his breathing deepening ever so slightly. He continued grinding against the visitors' knees, like a dog humping literally anything. Frantic, quick, wanting that release so desperately.

It was short before he came. His hips bucked up like he was trying to insert it in another male, and a very obvious wet spot starting to form on his pants. Cashier girl laughed awkwardly at this.
"Being human does most wonderful things to you." Coat Guy murmured. "You should enjoy this. Until the homeowner figures us out."

And that's how they started hooking up every night or so. Homeowner went to sleep, and the visitors topped Bar Guy.

Chapter Text

The lab smelled faintly of ozone and scorched paper. Alphys was pacing, a stack of notes clutched tightly in her claws, muttering equations under her breath. She didn’t notice the sound of armored boots until a loud CLANG of a spear hitting the floor snapped her out of her thoughts.

“ALPHYS!” Undyne bellowed, grinning ear to ear. “You said you had something new to show me! Some crazy experiment about souls?”

Alphys froze, cheeks burning. “O-oh! Y-yeah, uh, I’ve been researching, um… monster souls. Specifically how they… how they can be directed. Like… if a soul’s focus could be guided, strengthened, channeled in battle—or in other… situations.” She fumbled her notes, scattering half across the floor.

Undyne crouched down, scooping them up without hesitation. “Directing a soul, huh? Sounds awesome! And dangerous! I love it already.” She handed the papers back with a toothy grin. “So what’s the plan? You need a volunteer, right?!”

Alphys blinked. “W-wait, really? Y-you’d let me—? I mean, it’s not fully tested, there could be s-side effects—”

“Pfft. Alphys.” Undyne jabbed a thumb at her chestplate. “I live for side effects. Besides, if this works, I’ll get to fight even better! Or… whatever it does.”

Alphys looked down at the glowing device she’d been calibrating: a crystalline focus, meant to resonate with soul energy. She hesitated, then carefully set it in front of Undyne. “Okay… just, um, hold this. And concentrate on… on something you care about. Something that makes you strong.”

Undyne took the focus in one hand, her soul flickering faintly in the air as she closed her eye. Her grin softened. “That’s easy. I’m thinking about you.”

Alphys nearly dropped her clipboard. “W-what?!”

The device pulsed brightly, a deep red light swirling as Undyne’s determination flared so strongly that the lab’s equipment rattled. The air hummed with raw energy.

“Whoa—this is AWESOME!” Undyne laughed, holding up her hands as sparks leapt between her claws. “I can feel it, Alphys! It’s like my soul’s on fire, but in a good way!”

Alphys squeaked, tail curling tight around her legs. “I-It worked… it actually worked…”

The crystal pulsed again, brighter this time—too bright. A low hum filled the lab, growing louder until the fluorescent lights flickered overhead.

Alphys’s eyes widened. “N-no, no, no! That’s—uh—that’s not supposed to happen!” She scrambled at her console, typing commands as fast as her claws could manage.

Undyne, however, looked thrilled. “It’s kicking in harder! I feel—whoa, my heart’s pounding like crazy!” She clutched her chestplate, laughing breathlessly. “It’s like I could punch through the CORE itself right now!”

Alphys glanced at the readouts, her stomach twisting. “Oh… oh no. I-I think the resonance is… amplifying emotions. Any emotions. Whatever you were focusing on—”

Undyne turned her burning gaze on her. The crystal lit up in sync with her racing soul. “…You.”

Alphys nearly fell over. “W-WHAT?!”

The hum deepened into a thrumming vibration that seemed to fill the room. Undyne’s grin was sharp but her eye was oddly soft, pupils dilated, breath quickening. She staggered closer.

“I feel so—alive, Alphys. Like every cell in my body is buzzing. And when I look at you, it just gets stronger. It’s like my soul’s screaming at me to…” She trailed off, biting back a laugh. “Well, I’m not sure I should say.”

Alphys’s glasses fogged instantly. She flailed her claws. “T-this wasn’t the intended outcome! It’s—it’s like a… a chemical feedback loop! An aphrodisiac response!”

“Ha! Figures your experiment would end up making me wanna crush something—or someone—with passion.” Undyne leaned down until they were nearly nose to snout. “So what now, Doc? You gonna shut it down, or… keep testing?”

Alphys squeaked, fumbling for the console. Her claws hovered over the power switch, but her tail swished nervously, betraying her hesitation. “I-I should—um… but, maybe I should… monitor the effects for a bit longer, j-just for research.”

Undyne smirked, resting her palm against the console right beside Alphys’s hand, effectively pinning her there. “Good choice.”

The crystal pulsed again, painting them both in a deep red glow as the hum filled the silence between their quickening breaths.

"You're so beautiful, Alphys." Undyne murmured to the scientist, pushing the lizard's legs apart with her own. She reached down, slowly cupping her hand on Alphys' ass. The woman only looked away, her cheeks heating up.

Undyne dipped down, getting onto her knees. She pulled apart Alphys' lab coat, exposing the panties underneath. No, she didn't wear actual clothes under there, it's HER lab, she can get comfortable. Undyne hooked a finger under the panties, pulling them aside before leaning her head in. She pressed her tongue flat on the scientist's pussy, before curving it into a U shape around the clit.
She made a show of licking real slow and sensual, looking up at Alphys who was covering her face with her hands.

"Let me see that pretty face." Undyne said, her voice commanding, yet oh so loving. Alphys did as told, uncovering her face and looking down at the fish lady. She was blushing like mad, her glasses fogged up because of the heat eminating from her face. Undyne hummed in approval, before diving back into her meal.

She refrained from pushing any fingers in. She hadn't cut her fingernails, and didn't want her girlfriend to be scratched, so she used her tongue. Gently licking, pushing in, and eating as if this were her last meal.

Her hands stayed on Alphys' thighs, coaxing them apart slightly to get a better angle. Though one hand momentarily came up to softly thumb at Alphys' clit, while her tongue worked the entrance. She dipped the tip in, before circling back. Teasing, gently, though lovingly. Alphys couldn't contain it, being sensitive and all, making her moan out in desperation and pleasure.

This continued, with gentle praises uttered, for a while. Alphys tried holding back as much as she could, but eventually..

She came.

She reached to the side to hold onto something, ANYTHING, to brace. She moaned loud, fingers curling and grabbing at anything as her body twitched and writhed in complete bliss. Though, she.. Accidentally pressed something on her keyboard, the thing Undyne held in her lap stopped glowing, and she blinked in confusion, her pupils finally getting to a normal size again.

".. Woah. What happened?"

"Y-You.. Don't remember?"

This was gonna be a long explanation.

Chapter Text

It hurt.

At least at first. When Syo put her stupid strap on in, she didn't even prep him. Mondo was on all fours on the bed, with Syo behind him. They were both naked, save for the strap Syo adorned. It was pink, sparkly, with splashes of red here and there.

He looked behind himself, kind of side eyeing Syo. "Watch it. That hurt." He warned, his voice low, but as he began to speak once more, his voice cracked and failed on him when she pushed in farther.
"You're tight as hell, man!" She laughed, putting a hand on his ass cheek and squeezing. Her fingernails were sharp. Usually they'd be bitten short, since Toko fronted the most and had a bad habit. But.. Recently, Syo had been the most prominent in fronting time. They dug into his skin, making his head fall forward as he tried to think of something to threaten her with. This was just a stupid thing he'd never meant to start, now he was taking it up the ass by a serial killer. At least she killed cute boys. He wasn't cute, right? He was manly. Strong.

His eyes closed as he accepted his fate. He felt the fake balls of the strap hit his ass, meaning she was just about fully in. He breathed a sigh of relief, though it was short lived, as she pulled back and shoved in immediately after, forcefully pulling a grunt out of Mondo.
"You're no fun." Syo leaned over him, wiggling her hips. The dildo, now digging inside him, was weirdly pleasant? "I wanna hear those pathetic little whines." She, with her comically long tongue, licked a stripe up his neck and to behind his ear. He shivered, tightening his grip on the sheets.

He tried to keep quiet, he really did, but.. Syo got a certain angle, pointing a little downward, hitting his g spot directly. He twitched, groaning. Syo seemed to mark that mentally, and started going at it like a rabbit to that spot. Abusing it, one might say. Mondo arched his back, leaning his torso down, being face down ass up, basically. "There we go~." She cooed. She shifted her position, putting a leg firmly on the bed to absolutely pound this man to next year.

It wasn't long before the tears started. What Syo had failed to see (and I conveniently forgot to mention) was that Mondo had already cum. His dick leaking cum. She had kept going, overstimulating him. He sniffled, putting a hand over his eyes to stop the tears to the best of his abilities.
Syo looked down at him. She noticed the tears. She didn't stop.

"Huuh?" She hummed in great exaggeration. "You cryin'? I barely even started, Mondoo~" She moaned his name in mockery. He just continued grunting with every thrust, tears falling down his cheeks despite his best efforts. "Filthy slut." Syo tested the name on her tongue, her comically long one. "Yeah. I like that. You filthy slut." She repeated. Mondo whined, like a desperate, stupid mutt. He finally uncovered his eyes, looking behind himself at Syo.

His eyes, glossy with tears and slightly puffy, made Syo so absolutely horny, more than she already was. "Keep crying, mutt." She managed to blurt out, pushing in so far it made him shriek.
With enough thrusting, his grunts and groans turned into pathetic whines and cries of ecstacy. He came again.. And again.. And again. The spot of the sheets under him getting so wet, you'd think he was preparing cinnamon rolls with that glaze.

Syo, eventually, had to notice the wet spot. She looked down, sputtering a little in disbelief before bursting out laughing. "SERIOUSLY? How many times are you gonna cum before you tap out?!" Mondo just shook his head, burying it in the sheets out of embarrassment. Though, between you and me, he was actually getting ready to cum again just from the degradation alone.

He tried to relax, his inner walls had been clenching around Syo's fake dick this entire time out of pure rage that he was getting dominated, but it felt better when he relaxed.

He relaxed.. And relaxed..

Until he didn't. He snapped out of it when he heard Syo laughing so hard, she might pop a vein. "WHAT THE FUCK?!" She screamed, between giggle fits. "Are you seriously pissing right now?" She called out. His eyes widened, looking between his arms. He was, in fact, pissing. He'd cum so many times, that relaxing now just made his bladder empty. His cheeks were so red it kind of matched Syo's eyes.

"Shut up, man!" Mondo finally called out, his voice shaky and pitiful. Though it was interrupted with Syo grabbing the back of his head and pushing it into the bed.

"Stupid slut. You're pissing all over the bed because I'm domming you so hard! I'm gonna tell everyone you're just a pathetic little mutt that can't control his bladder when his master's pounding his little hole." No, I didn't know she was this much of a freak either. He grunted into the mouthful of sheets he was getting, though he kept crying.

It was hours of this. Cumming, pissing, humiliation, before Syo finally was done with him.

He looked like a rubber ducky, laid on his side, surrounded with piss and cum, and.. FInally thinking about his life choices that led up to this.

Chapter Text

It had been so long since they got time to have sex.
Alphys and Undyne both had pretty important jobs in the Underground. The Royal Scientist and Royal Guard respectively. It took up a lot of their time, especially with the recent scandal with Frisk, the human. A lot of back and forth, Asgore informing them to kill the human, then changing his mind, then changing it again.
But right now, the human was somewhere further into the Underground, so Alphys and Undyne stood in the lab, making out like horny teenagers.

Undyne broke the kiss apart, her fiery gaze filled with nothing but want and need for the other woman. She pressed open mouthed kisses down Alphys' neck, unbuttoning her lab coat while Alphys shrugged it off to help a little.

With a bit of shuffling, and a lot of kissing, they were in their underwear. Undyne wearing a plain black bra and boxers with a bone pattern on it (Papyrus' gift). Alphys had Mew Mew Kissy Cutie merchandise. Panties that just had the mascot/protagonist's face on the crotch. Undyne didn't pay much attention to it, just focusing on getting Alphys against her messy desk. Papers scattered on the floor, but neither of them bent to pick them up. Littering was only okay when you're getting it on, I guess.

Alphys braced by putting her forearms flat on the desk, bending forward ever so slightly, while Undyne touched and worshipped every curve and skin she could get her hands on.

Undyne hooked her index fingers on each side of Alphys' panties, sliding them down her ass. In her mind, she was blessing this absolutely delicious sight, thanking any God the Underground believed in for giving her this amazing girlfriend.
She reached for her backpack, unzipping it and taking out her signature "ABTAH" strap on. Oh, you don't know what that stands for? Well, Always Bring To Alphys' House, of course.

She stepped into the straps and fastened them around her hips. The dildo carried weeks (months? however long they'd been hooking up) of trial and error. Some too big, some too small for Alphys to get off correctly. This one was perfect, it was light blue, with subtle sparkles and a darker blue at the balls. No, bad reader, don't think of Sans' magic penis. This is UNDYNE'S non magic PENIS. Now, let's continue.
She held it with one hand, the other gently holding Alphys' hips, her thumb tracing circles to brace her. She slid the tip along Alphys' pussy lips, teasing the entrance lightly.

Alphys let out a slight whine, her fingers clenching around nothingness as she tried to relax.
"It's okay, Alphys." Undyne said, her voice unusually soft. Usually, she'd be screaming at people, chasing the human, being all around a menacing one. Though, with Alphys, she was gentle, patient.. Alphys loved it.
Slowly, the tip was pushed in, and Undyne leaned her chest against Alphys' back. Pressing gentle kisses to her shoulders and neck while she eased the shaft inside.

She finally pushed it entirely in, then stayed there for a second, her arms around Alphys' waist as she whispered soft praises into the woman's ear for taking her so well.
Slowly, she pulled her hips back, then pushed them forward again. A slow pace, she knew the scientist enjoyed it slow at first.

A couple thrusts, more than enough praise, and they fell into a rhythm. Thrust, kiss on her shoulder, thrust, praise. Alphys whined and moaned, she was awkward at heart so her noises weren't exactly the epitome of what you'd see in porn, but Undyne loved her and her noises.

It felt like they had just started, before the lab doors opened. They paused for a second, both looking utterly horrified at the noise, and staring at the door.

There stood.. Sans. All 4-5ft of him. I don't know his actual height, so I'm giving an estimate.
He held a bottle of ketchup in his hand, his usual grin spread on his face like butter on toast, it was just the norm.

He walked in, looking at Alphys.. And Undyne behind her. Their bottom halves were covered by the desk thankfully, so he didn't see any of that.

"whatcha doin'?" Sans spoke up, his eye sockets somehow narrowing even without any eyelids to narrow.
"U-Uh.. Ah.." Alphys stuttered out, her cheeks reddening so much she might pass out right there.

"We're just getting prepped for a shower." Undyne lied on the spot, her hips still moving. Slower, but still enough for Alphys to feel every twitch and movement inside of her.
Sans raised a nonexistent eyebrow at that, looking around. "ya got a shower in here?" He asked, to which Alphys nodded hurriedly. "Y-Yes! yes.. I do. M-More efficient, you know?"

They stared at each other for what felt like an eternity and a half. It was clear he didn't believe them.
He took a long, painfully slow sip of his ketchup. More than anything, it just rolled down his chin, since he didn't really open his mouth, but the sentiment was there - skepticism.

It wasn't long before Alphys literally just came on the spot. They'd been fucking for a while, and Sans came in right in the climax, quite literally. She dropped her head forward, putting a hand over her mouth as she twitched. Her knees became weak, and she really propped herself on that desk to at least try to look somewhat controlled.

He really looked at them, and before they could defend themselves, he spoke. "are you guys fucking?" He said, chuckling dryly. Alphys sputtered in disbelief at his audacity. But.. Then he spoke again. "in front of my salad? seriously?" He looked to the right, at a wall. The fourth one, if that made any difference, and he shrugged like he'd made the joke of the year to an invisible audience. That audience was me, actually.

He turned and shrugged. "eh. try locking the door next time." And with that, he left, but not before waving his ketchup as a goodbye.

Alphys and Undyne stood there in complete shock. They were trying to process what had just happened.

They never forgot to lock the door after that.

Chapter Text

Syo was not your ordinary girl. Of course, you should know this. Red eyes (probably pink eye from all those blood fumes), an abnormally long tongue, scissors she carries in less than ideal places. And, more importantly, DiD. Now, she didn't get much time to front, given Toko usually doesn't let her, again, given her murderous tendencies for boys they fancy. Now, though, she was in bed with one of them, fully conscious, fully fronting.

The boy, let's not give names since he's fully just some guy that she fancied, was laid down in a motel bed. Naked, save for a blindfold over his eyes and a stupidly wide grin on his face as he kind of braced with his arms, waiting for Syo to get on top. Syo was kneeled at his feet, looking at him with a look of disdain. Did she really need to fuck him? No, I mean, she could've easily killed him at any point, but he swore he was amazing at making girls cum, so she needed to put that to the test.

She shuffled on top of him, his hard cock brushing against her panty wearing crotch. He giggled like an excited fox, which really turned Syo off more than she already was. She sighed, rubbing the bridge of her nose with her pointer finger and thumb.
Despite her being absolutely over this, she hooked a finger around her panties and slid them to the side, easing herself above his dick. She parted her legs a little further so her torso lowered. And his hands, after feeling around for a bit, found themselves on her hips. She shivered despite herself.

"This is so mysterious." He said, his voice shaky with excitement. An unnecessary amount of exaggeration in the word mysterious. "I'm glad you thought to do it blindfolded." He murmured.

She lowered slowly, sighing as it slid inside. She wasn't the wettest, so it was a bit difficult, but she managed.
Slowly, she rocked her hips back and forth, then added a bit of up and down, looking at this guy like she was shit on her shoe. Though, he didn't notice, given he was blindfolded, so..

It was a bit of back and forth, with her giving at least a little effort to moan and try to sound enthusiastic about it. He was groaning and grunting like a caveman. Jesus Christ, what kind of man did she even choose to fancy? He wasn't this repulsing when Toko was stalking him, was he?

Eventually, she got an idea. She reached to her thigh, where she always kept a pair of scissors strapped, which she never took off, not even for sex.
She unsheathed them from their strap, and held them up to his face, making them shimmer in the light. Him, being basically blind right now, didn't notice, only continuing to moan and grip her thighs like he was trying to bruise her.

They weren't big scissors, no, but they were sharp and she knew it. She held them up to his arm, pressing the tip of them to his bicep and watching the skin dip and cave with the pressure. He perked up, smiling. "Is that your nail? You can scratch me, you know, eheh..he.." Weird ass guy, but you know, we're giving him the benefit of the doubt.

Slowly, she opened them, and sliced the skin. It was a deep cut, to the fat layer, which started bleeding immediately. She perked up at the sight, and he did too. He let go of her hips.

"Yo, what the fuck was that? Ow!" He reached up to undo the blindfold, but she grabbed his wrists and pressed them to her hips again, giggling. The sight of the blood made her horny. REALLY. HORNY. "No, no! Don't stop now, you're gonna make me gush!" Gush? Like blood? Anyone?
He had a look of discomfort, but the promise of more pussy, he grabbed her hips again, his lips thinning in slight discomfort.

She watched the blood rush out of the wound, seeing the yellow fat layer slowly covered in blood, it got her so very riled up. She continued riding him, now with much more enthusiasm and more bouncing, Every time she fell down onto his dick again, blood would lightly gush for a second before continuing the steady stream. This was what people felt when they were desperate to get off, right?

She pressed the scissors to his bicep again, lower now, and sliced again. He yelped in pain, but didn't check or try to get her off. Maybe he thought her nails were just sharp? He couldn't see the damage.
Slowly, she slid the blade across his skin and to his chest. Not breaking skin, but teasing it. The way his body twitched in anticipation, the way the blood gushed, it was all too exhilirating.

She sliced his chest. He had fatty tissue in his pectorals, which showed with excrutiating detail. She reached a finger in, touching the fat layer's bumps and crevices where every little fat circle aligned with each other. She was tempted to rip one out, but she decided against it.

The blindfold became a darker grey. She noticed this. He was crying. He leaned his head back, eyes closed under the blindfold as he felt the wet feeling of blood rushing down the sides of his chest and arm.
She bounced a little harder, blood sprayed out of the chest wound.

"Yo, I'm getting- Getting a lil' lightheaded here. Slow- Slow down." He managed to get out, but Syo only sped up.

The scissors only kept slicing, his arms, his chest, his abdomen. Wherever she could reach, it was cut.

Eventually, both Syo and the guy were covered in blood. He was on the verge of passing out, before he felt a slice through his neck.
He was about to scream, before the blood filled into his throat. He jerked and hiccupped, his hands suddenly flying to the wound. He was crying hard, though Syo only heard strangled gurgles. She leaned down, licking his neck where the wound was. His body writhed in pain and cried out in absolute torture, before it went still.
Right on time, too, since Syo was so absolutely ecstatic that she came on the spot. She creamed around his dick, before slowly sliding off of him and looking at the damage done.

She put her hands on his chest to gather some blood, and wrote "BLOOD LUST" on the wall above the bed. She grabbed his limp arms and pinned them to the bedframe, before using her "one use, throw away" scissors to pin them there.
She wandered to the bathroom, where she showered and got all the blood off herself. She put her clothes back on, sheathed the scissors back into her thigh strap, and left.

And that, girls and boys, is why you don't fuck Syo.

Chapter Text

Spy awoke after what felt like decades of being blacked out. For the first time in a long time, he'd been snuck up on. During a fairly intense battle, he felt a blunt object hit the back of his head, and his vision blackened. It was almost instantaneous, like whoever had hit him had intention to knock him out, but not kill him.

He saw bars in front of him, like he was in a cage, and when he tried to move his arms or legs, they hit walls of bars. He was almost in fetal position, with his knees up to his chest and his arms only being able to move a certain way side to side. The cage he was in didn't let him move his lower body, that was for sure. All he could do was grab at the bars in front of him and wiggle them, which shook the cage. He looked around for a moment, deducting that the cage was suspended a few feet off of the ground. Not more than 3 or 4, though.

In front of him, the front door squeaked open. RED Medic stood, peeking inside, though when he realized Spy was awake, he opened it fully and sauntered in with a grin.
"Ah, you are avake!" He said cheerfully. He clasped his hands together, then closed the door behind himself and walked further in, crouching slightly to be at eye level with Spy.

"I did not vant to disturb your sleep, ja? Rest is important before this procedure."

Spy scowled as a procedure was mentioned. He wasn't a guinea pig, for Christ's sake. He was THE (blu) Spy.
"I'll assume you won't tell me what the procedure is."

A beat.

"Of course not!" Medic replied cheerfully, hands behind his back. "It's much more exciting if you don't know." He waved his hand up and down dismissively. Spy felt one of his veins, around his neck or forehead area, bulge so hard out of absolute frustration that he felt it was going to pop. But he just sighed, keeping those feelings to himself. As an Alpha (a pretty darn good one at that), he'd always stayed cool in situations that didn't favour him.

"Got it." He huffed out, his hands tightening their grips on the bars. Medic only giggled and lightly flapped in excitement, before he took a deep breath. "Alright! I vill go get Engineer, ja? He vill.." Medic gestured with his hands to Spy and the cage. "Prepare you."

Medic walked out of the room, cheerfully humming to himself, a tune that felt awfully nostalgic to the Spy, though long forgotten.
Shortly after, another person walked in. He walked with a cowboyish saunter about him, YES I'm mentioning cowboys I LOVE cowboys you guys can't stop me.

"Hello, backstabber." Engineer spoke, his accent a little thick but it was easy to tell what he was saying. "Ya ever think to yourself about yer place in the hierarchy?" Engineer asked, circling the cage. Every time he walked past Spy's line of sight, the backstabber got nervous for a moment.
Spy didn't reply. Any answer would be a wrong one, he knew this. Engineer never let him have the benefit of the doubt.

Engineer paused behind him. Spy could sense the uncomfortable warmth of his presence, which was unmoving.
A shriek of metal sounded, like he was lowering a mechanical arm of sorts down. Spy didn't get time to process this before his suit pants were suddenly hooked on something—Engineer's fingers, probably—before they were pulled down. Not entirely, given his position wasn't optimal for pantsing, but enough to uncover his ass.
Spy noticed this movement before it was finished, and he flexed his calves, pressing the heels of his feet against his ass to prevent the pants from lowering any further than about halfway.

"You're makin' this harder than it needs to, boy." Engineer said firmly, putting one hand on Spy's feet and forcing them down, using the other to lower his pants like he intended in the first place. Spy almost growled, his hands clenching and unclenching. If this stress was put on anyone BUT him, they'd get a heart attack from sheer frustration.

Engineer took off his gloves, then put on different ones, ones that were looser on his hand, not optimal for machinery and all that. "I ain't wastin' no good gloves on ya." He said, chuckling dryly to himself.
He splurged some lube on his pointer and middle finger. Then, he lightly pressed them to Spy's asshole. It clenched, like a bouncer refusing entry. "Stop what you're doing." Spy threatened, though it had no weight given his circumstances at the moment.

"Ya think I'm gon' listen to some lowlife Alpha?" Engineer laughed. He pressed his index finger in forcefully, making Spy choke out in surprise.

They stayed in quiet silence for a moment, before he curled his finger. "Can't have ya snappin' on me. Medic said some bullshit 'bout stretchin' you correctly." He continued, though knowing full well that Spy wouldn't reply.
A bit of massaging helped the second finger slide in. Then, with a bit more lube sprayed on his hand, a third went in. Then.. A fourth.

Spy grunted and tried to sound like the dominant Alpha he was. Growling, groaning in protest, but it didn't deter Engineer one bit.
In fact, it helped him slide his fist in. Not a fist fist but all of his fingers in, sort of like an italian hand motion sorta thing. He pumped the fingers in and out until he could get knuckle deep with all of them, then slid his entire hand in. He didn't have to, but he spread his fingers as much as they could. He felt Spy's walls clench around him, in a sort of pain, but mostly just frustration.

With a bit of wiggling, eventually he pulled his hand out. He walked to the machine arm, and compared the current dildo that was strapped to it with his fist. It was a decent match, though a bit bigger, so he lined it up with Spy's hole. He fiddled with the controls for a moment, before turning it on, making the mechanical arm slowly pump back and forth. Spy's head fell forward, forehead against the bars, growling and (despite knowing better) letting out whines of pain.
It hurt at first, though it quickly became manageable.

Engineer finally rounded to the front of the cage again, looking Spy in the eye.
"We're gon' leave you here for a bit, boy. Medic's gon' check up on you, but I ain't." He laughed. "Enjoy yourself."

Spy spent an eternity in that cage. His hole forcibly being filled with that stupid machine set up by that stupid engineer. Until the door opened.

Medic walked in holding a notepad. He tapped a pen against it, crouching to look at Spy. "Hallo!" He greeted. "How are you feeling?" Spy only stared, a silence strike, to say it simply.

"Ja, ja, I understand the procedure isn't as pleasant as I promised.." He did not promise anything. "But it is necessary!" He nodded firmly to himself. "I vill write down that you refuse to speak, ja? A normal stage."

With that, he was gone.

Every day Engineer would come in. Make fun of him, change out the dildo, then leave. Every night, to at least let him have a peaceful sleep, the machine would be turned off and replaced with a butt plug of an insane size, though surpisingly not as unpleasant as the dildo.
For the first few nights, he refused to sleep. But, as he grew accustomed to the feeling, he slept the next nights.

Today marked week 4 of this torture. Medic sauntered in, the light from behind the doctor was enough to deduce that it was morning, and Spy, despite himself, found himself almost happy the doctor was coming in to see him.
"Today is the fourth veek." Medic said aloud to himself. "I must check how your anus is doing. My studies say zat by this point, you must start your heat."

Medic walked behind Spy, slipping the butt plug out with a slight pop. Spy felt unusually empty without it in. He felt the doctor's fingers prod around, inside, around then rim, and eventually, he was full again.

"Zis is vonderful! You are in heat as we speak!" Medic flapped his hands happily, smiling. "Just another veek or zwei and you'll officially be an Omega. Is zis not an amazing discovery?!" Medic said joyfully. Spy didn't have the brain power necessary to fully process what the doctor had said. He'd gotten so absolutely destroyed by increasingly bigger dildos, his mind was completely in subspace. He didn't even get mad when Engineer came in.

This process repeated itself for another week. Spy had the advantage of knowing at around what time Engineer came to switch his dildo to a butt plug for the night, and vice versa. Then, Medic would come and ask him questions.

After this, he was let out of his cage, with a complimentary butt plug stuffed in his abused hole so he didn't feel empty.
He relearned how to walk eventually, though having to basically drag himself to his team's base..

He was now officially an Omega. In the most humiliating way possible.

Was it weird he kind of enjoyed it?

Chapter Text

It was a lonely life. Being a monster (or monster adjacent) in a life of killing people for a living. He'd stayed in the shadows of the sewers, away from peering gazes, especially from those judgemental little cunts that were the opposite team.

Medic was a different breed. He was determined, and boy was he excited when he heard the rumors about a tentacle monster in the sewers. Maybe he could extract dna samples and add them to Heavy, you know, normal medical stuff.
He was treading the sewers, boots squishing down the water. It wasn't exactly helping that they'd filled with water long ago, but hey, if it meant more medical malpractice, he'd walk barefoot through barbed wire. He held a flashlight in one hand, but no weapon except a scalpel to extract what he needed. He didn't want to kill the creature, no, rather study it.

Eventually, he stepped on what felt like more squishy.. Muscle? As soon as his boot stepped down with force, the floor seemed to get pulled from under him, sending him in a stumble that could only be described as the dance you do when you slip on ice, but don't want to fall. When he stabilized, he shook his flashlight, pressing the button and flashing the light forward.

The creature wasn't exactly the biggest, but not human sized. It had tentacles that curled calmly around itself. But.. When he shined the light up, he saw.. The BLU Spy's torso?!
Spy flinched away from the light, shielding his face with his arms.
"Would you get your light awa-?!" He was about to snap, but just rubbed his nose bridge. It wasn't worth it. He'd kill the doctor anyway. One tentacle slowly wrapped around Medic's torso, while Medic only stared in awe.

Medic didn't panic as much as was expected. He wriggled a little in the hold, managing to slip his scalpel holding arm out and over.
He ran his free fingers along the surface of the tentacle holding him. He held his scalpel with the pointer finger and thumb.
"Zis is.. Amazing!" Medic remarked happily, feet kicking mindlessly. An autistic man stimming at the fact he was about to be killed by an interesting specimen. "Your tentacles are a medical breakthrough. Zey are muscle, but strong und.. Completely controlled by human mind!" He looked up at Spy, a big smile on his face. "Do you mind if I take a sample back to ze base?"

Spy only sneered, the suckers on the tentacle stuck to Medic's clothes. "You may not." Spy spoke, almost surprised with himself for letting Medic live this long.

Medic died. And respawned, and came back.. And died. Over and over again.

Every time was something different. Medic doing most of the talking, of course. But every time.. He lived a little longer. Until they spent hours sitting with each other, Medic babbling about some medical breakthrough and how he'd wanted to implement the use of tentacles on Heavy's next check up.

Spy absentmindedly ran a tentacle (the back of it, not the suckers side), along Medic's leg. Up his thigh, until it grazed his groin. This shut the man up quite effectively.

Spy continued this movement. Gentle caresses with his tentacle, while Medic slowly spread his legs and bucked his hips to the touch. Another tentacle wrapped around Medic's abdomen, guiding his hips along the other tentacle.
Medic became rock hard, of course he would, have you SEEN Spy?
He used his human arms to hold his own face in bored amusement. Though he became determined to ruin Medic in all the right ways.

"Ah.. Zis is.. New." Medic stuttered out, laughing awkwardly. His tip oozed precum, tinting his pants.
Spy continued this rocking. Slow, rhythmical, though precise. Enough to get Medic to the edge, but never over it.

It was torture.

"Bitte." Medic pleaded. It fell on deaf ears, as Spy just observed him curiously.
This continued. And continued.. And continued. Until Medic was a blabbering mess, clutching his flashlight and looking at Spy like a desperate puppy.

Eventually, Spy sped up. Just enough to drive Medic over the edge. The doctor seized, his hips bucking and basically ruining his underwear with the amount of cum dropped in them suddely.
He clutched the tentacle, screaming.

"S-Spy!"

A beat. Then.. Medic's neck was snapped, killing him.

Spy regretted it. Extremely. The way Medic reacted to it, the way he clutched at the backstabber, it reminded him all too much of his late wife. Mother to Scout.

He didn't let anyone, not even Medic, pass by without being killed after that.

And Medic never got his sample. Just the memories.

Chapter Text

The sound of gears grinding filled the empty gym. One of Monokuma’s security bots lay in a heap of sparking metal, a victim of Mondo Owada’s temper. His fists were still clenched, knuckles raw, breathing hard like he’d just fought a real person.

From the loudspeakers above, Junko Enoshima’s voice purred through the static.
“Woooow, someone’s got anger issues. You know, that bot cost, like, a lot of despair points to make.”

“Shut it, Enoshima,” Mondo growled, trying to steady his breath. “That thing got in my way.”

A door creaked open. Junko stepped in, her heels echoing sharply against the gym floor, her smile a mix of cheerleader brightness and sadistic glee.
“You’re adorable when you act all tough,” she said, circling him. “But rules are rules, you know. Breaking Monokuma’s toys means you get punished.”

Mondo scoffed, though the sweat at his temple betrayed his nerves. “I’ll take any punishment you got. Just don’t expect me to bow or—”

Whap!

Junko snapped a hand fan against her palm. “Oh no no no. You don’t get to act all macho about this one, Owada. You need something that’ll really hit your pride.”

Mondo’s glare faltered as she sat down on a wooden bench and motioned for him.
“C’mon. Over here.”

He froze. “You’ve gotta be kidding me.”

“Do I look like I’m kidding?” Junko’s eyes sparkled with manic delight. “You’re gonna take your punishment like a good little delinquent.”

For a long moment, the silence was heavier than any blow. Then Mondo muttered a curse, marched over, and reluctantly bent forward over her knee, like a stupid puppy that'd never been punished. Junko raised her hand.

The first smack echoed. It wasn’t hard, more humiliating than painful — a deliberate reminder of who was in control. Mondo’s face flushed deep red, his fists trembling at his sides.

She pat his ass calmingly, snickering to herself before spanking him again.
“Loudmouth bikers shouldn’t pick fights they can’t win,” Junko teased between swats. “Even against robots.”

The spanking continued. Each one harder than the last, each one more humiliating than the last. He knew it was very possible that anyone could walk in at any second, and that's what scared him most.

"Now say you won't do it again, pup." Junko cooed.

“I ain’t—” smack “—gonna—” smack “—break a Mono-" smack "-kuma again!” he barked through clenched teeth.

When she finally stopped, Mondo straightened, eyes avoiding hers, jacket closed with his hand. His face was crimson — not from pain, but from the sheer indignity. Junko leaned back, satisfied.

“Lesson learned?”

He grunted, tugging at his jacket to cover the stiff aftermath that it left in his trousers. “You’re twisted, Enoshima.”

Her grin widened. “Oh, you say that like it’s an insult.”

As Mondo stormed out of the gym, Junko called after him, sing-song:
“Next time, try punching despair itself instead of my robots!”

He didn’t answer — just shoved open the door, his pride battered more than anything else.

He never broke any more robots again.

Chapter Text

It had been around 3 months since his forced stay at RED Medic's.. Lab? Whatever room that was that they kept him in.
He had mostly forgotten about the procedure, his mind easily blocking out trauma to make sure he worked as efficiently as possible. Though he was still, sometimes, reminded of it when he smelled the other mercenaries' pheromones. It was especially strong with Sniper, being that he didn't shower often and was generally not the most hygienic. The layered odor of his BO and his pheromones were weirdly enticing to the backstabber, though he'd never acted on such stupid urges.

He found himself drawn to Sniper's whereabouts more than not. Staying behind him, smelling his hat if he'd dropped it somewhere.. It was weird. Though, not entirely odd, as Sniper was a proud Alpha.
Though now, Spy was in heat. The first non assisted one, out of the cage. He climbed the stairs up to Sniper's usual hangout place. Sniper was nowhere to be seen, but his smell was there. It was like a moth to a flame.
He had a particular interest to the chair. In front of it, a cum stain (quite fresh) was apparent. And on the chair, sweat stains.
He lifted his mask over his nose, to expose it. Slowly hovering himself over the chair and giving it a slight smell. A part of him, the logical one, screamed to be disgusted. It was the man's ass sweat, for fuck's sake! Get it together. But.. The other part, his newfound Omega sex drive, told him to keep going.

He pressed his nose up like a mutt sniffing out what he'd dug, smelling and relishing in the scent. His pants felt tight, slight precum bubbling at the tip and staining his underwear, yet not enough to fully go through it and stain his pants just yet.
He humped the air quietly, bracing his weight with a hand on the ground and the other on the chair.
He leaned down, ass up, and licked a stripe off of the floor, where the cum was. It tasted salty, yet extremely enticing. He leaned back, putting a finger in his mouth to scrape off the cum off his tongue, then inspecting it. His eyes narrowed, his thumb and pointer finger pressing together as he watched the liquid react to his actions. Slowly, he licked it off his finger and went down for seconds.

He knew it was disgusting. Sniper probably hadn't clean this floor for Lord knows how long, and his cum probably wasn't the most sanitary even if it had protein. Hell, Spy wouldn't deny that Sniper's cum probably lacked the protein from how little he took care of himself.
But it tasted amazing. And his smell, the thought of the man helping the backstabber with his heat.

"Easy now." Dream Sniper (the one in Spy's imagination) said. "Don't want you cumming just yet, huh, pretty girl?" He cooed. In Spy's imagination, he was much more desirable than in real life. He thrusted into the backstabber, gently playing with his dick in a reacharound type of thing. He was leaned over Spy, whispering in his ear, chuckling. And those sounds, fuck, those sounds. It was enough to have him, real life this time, reaching down his pants and under his underwear, slowly pumping his already hard cock.

"YeEss.." His voice cracked, smelling the chair like it was scented like caramel and sweets. "sn..SnipeeEr.." He bit his lip, bucking his hips into his own hand as he moaned and whimpered against the chair.

It was pathetic and Spy knew it. At least, he was happy he was alone right now.
Precum leaked more, coating his hand as he pumped up and down.

Slowly, Spy leaned down, licking another stripe of the cum off the floor. He continued pumping like his life depended on it, twitching, squirming as he neared his orgasm finally.

He eventually let his dick out of his pants. He aimed slightly towards the already half gone cum stain, and let himself go. He orgasmed intensely, unable to form words as he let it all go. The cum stain mixed with Spy's cum, disguising it effectively. I mean, he was still Spy after all, he had no reason to leave traces of himself apparent.

"Bloody hell, Spy." A voice sounded from the door. Spy turned, to see Sniper standing there, eyes wide in disbelief and a little bit of amusement.

Chapter Text

Toriel and Asgore usually had sex every night. They wanted to keep the spice of their relationship alive during the years together.

Tonight was no different, they planned to do the same. Usually, as one does, Asgore would top and Toriel would bottom, given their genders. But this time was a little different. Asgore wore the woman's lingerie, although it was a little tight on his (pretty muscular, if his memory serves him correctly) body. The silk outlined his pectorals, squeezing them outward with his hard nipples pointing slightly down and outward. The panties did little to cover his genitals, his dick tucked into the panty line awkwardly as his balls hung out of it.

He was stood in front of Toriel, who sat on the edge of the bed admiring him. She lightly drummed her fingers on the bedding next to herself. "My girl." She cooed. She was weirdly turned on by the sight of her husband dressed so skimpily.
"You're so cute." She continued, reaching a hand down and running it down his stomach. He shivered, his tail twitching and wagging at the contact.
His dick hardened ever so slightly, though it was awkward and a little uncomfortable given his current state in the panties of the lingerie. Toriel skimmed her eyes down his body, relishing the sight of his hardened, slightly leaking dick. "Ohh, baby." She said mockingly, her hand, previously on his stomach, lowered to have one finger feather over his cock.

His tail, not long enough to thump against his sides from the wagging, pathetically twitched and reacted to every touch. She noticed this, his hips moving slightly to accommodate how desperate he was.
"Who's a good girl?" She asked, to which Asgore only whined lowly. "m.. Me." He responded quietly. Toriel hummed in approval. "Goood girl." She outstretched the word good, just to put emphasis on it.

"On your knees." Toriel commanded. Asgore replied eagerly, setting one knee down on the ground before the other came down shortly, now kneeling in front of Toriel.

She put a hand on his jaw, fingers idly caressing lazy circles on the small part that connected his jaw and neck. Her thumb stayed near his jaw, caressing his beard, which he had trimmed not long ago.

"YeEs, Toriel." His voice cracked because of the nervousness. He hadn't ever tried this before, but he was loving every second of it. "Yes, ma'am." Toriel corrected, which Asgore nodded intently. "Yes, ma'am." He repeated, his eyes stayed focused on Toriel, like nothing else mattered to him other than pleasing his wife. Toriel's eyes gazed back, though it was clear she didn't plan on particularly pleasing Asgore, more like ruining him.

She undid the buttons of her blouse. (Personal hc, she dressed differently before the divorce), leaving it half on, only showing the inside of her breasts instead of the full scene. She opened her legs, and quietly nodded at her own crotch, then looked at Asgore expectantly.

Asgore immediately got to work, leaning down and pressing his bearded face into her crotch. He kept his fangs (Idk why he has them, ask Toby Fox) at bay, making sure not to harm Toriel, while his tongue worked on her. He licked a line up her vagina, avoiding the clit directly, as he knew it was far too sensitive to work on so directly like that.

He looked up at her like a mutt, expecting some kind of praise, but Toriel only looked down at him with a raised eyebrow. He continued, gently licking stripes and shapes against her vagina, before lightly testing the waters into putting it inside. It was very gentle, and hesitant, he knew he'd be punished if he tried to do something earlier than she intended.

His moustache tickled her clit, making her twitch and reach down to grab one of his horns. He didn't flinch, he knew she did this when she liked what he was doing.
She guided his head down slightly by his horn, tilting her head back and sighing in content. He continued this for a good while, enough to get her close to the edge before she pushed him away by his horn.

"You're not getting close from just eating me out, are you, pretty girl?" She asked, looking down at him. She guided his head back to look down his body, to which she realized his dick had slipped out the top of the panties, and he had been jerking himself off without her knowledge. "Bad girl." She used her foot to push Asgore's hand away from his dick, and gripped his horn with a little more intent. "Bad girls don't get to cum until mommy Toriel says so." Asgore whined. He bucked his hips forward, but she shook her head, clicking her tongue. "Yes, ma'am.." He nodded solemnly, before his head was guided down again to continue licking and eating her out.

This time, he didn't have the pleasure of jerking himself off while he pleased his wife, but it was enough to keep him mind bogglingly hard.

All he could taste was her.

All he could taste was heaven.

He closed his eyes, focusing all on pleasuring his wife in all the best ways possible. Licking, using his trimmed moustache to lightly graze her clit while he worked, and it did work. She was moaning, gripping at his horns, guiding him to all the sweet spots he had trouble finding. At least he knew where the clit was, that was something, right?

Eventually, he snapped out of it, looking up at her again, a silent way of asking how he was doing. "You're doing so good, pretty girl." She nodded quietly. That was all he needed to continue.

A lick there, a massage of the g spot inside of her here, some tongue action, spelling out her name and his own on her vagina. It worked like a charm, it always did.

It wasn't long before she came. It wasn't extravagant, but it wasn't unnoticeable either. She only writhed slightly against him, grinding her hips before she rode out her high. That's when she used her foot to lightly tap the tip of his dick. A permission granted.

he started playing with himself in front of her. His hand going up and down and using his pointer finger to draw circles on his tip. He didn't want to keep her waiting, not at all, he needed to be a good girl to her.

But.. before he could finally finish..

"Asgore?" Toriel said. Her voice fading in and out. "Asgore, what are you doing?"

He opened his eyes, to find, not Toriel, but Rudy in front of him, lightly shaking his shoulder. "Wake up, man. You've been sleeping at your desk."

Oh, right. He was divorced.

Toriel would never do that, anyway.

Chapter Text

Alphys had always been curious about certain aspects of monster anatomy, and after a particularly long day of studying in the labs beneath Mount Ebott, she found herself craving some hands-on experience. She knew just who to turn to for that.

Undyne, the strong and confident royal guard, was more than happy to oblige her friend's request for a "practice session." The two of them had always shared a close bond, but this would be their first time exploring their sexuality together.

As they made their way to Alphys' chambers, the tension between them was palpable. Alphys' heart raced with anticipation, while Undyne's confidence seemed to grow with every step. When they finally reached Alphys' room, they closed the door behind them and locked it for privacy.

Alphys couldn't contain her excitement as she led Undyne over to her bed. She watched with bated breath as Undyne removed her armor piece by piece, revealing her well-toned body underneath. Alphys couldn't help but feel a twinge of desire as she admired Undyne's physique.

Undyne noticed the look on Alphys' face and smirked. "Something you like, my dear?" She asked, her voice low and seductive.

Alphys blushed profusely but nodded in response. "Yes, very much so."

Undyne chuckled softly before leaning in to kiss Alphys passionately. Their tongues danced together as they explored each other's mouths, their hands roaming over each other's bodies.

Eventually, they broke apart, panting heavily. "Now," Undyne said, her voice husky with desire, "let's see what you've been studying so diligently."

Alphys nodded eagerly, her heart racing as she anticipated what was to come. She watched as Undyne shuffled her pants down. Little known headcanon I will only use in this fic, Undyne was a trans woman. Alphys' eyes widened in surprise, but she couldn't deny the excitement that coursed through her veins at the thought of being taken by her friend.

Undyne positioned herself between Alphys' legs, her fingers teasing the folds of Alphys' labia. Alphys gasped as she felt the first touch of Undyne's dick against her sensitive entrance. With one swift motion, Undyne thrust into Alphys, filling her up completely.

Alphys cried out in pleasure, her body arching off the bed as she was taken by Undyne's skilled movements. She could feel every inch of Undyne inside her, and it felt incredible. Undyne began to move faster, her hips slapping against Alphys' ass in a rhythmic pattern.

As they moved together, their moans and gasps filling the air, Alphys couldn't help but feel a sense of power and control. She knew that this was her moment to shine, to show Undyne just how much she desired her.

"M-My stars.." Alphys stuttered out, hands bracing on Undyne's shoulders to ground herself as much as she could during this. "You're d-doing so good. This is exactly wh-what I saw in my studies.."

With renewed vigor, Alphys wrapped her legs around Undyne's waist, pulling her deeper inside. Undyne growled in approval, her fingers digging into Alphys' hips as she picked up the pace even more.

Soon enough, Alphys felt her orgasm building, a wave of pleasure washing over her. She cried out as she came, her walls pulsing around Undyne's cock. Undyne followed suit, her own orgasm hitting her like a tidal wave.

They came down from their high, but it wasn't long before Alphys pushed Undyne onto the bed, a quiet signal to let her take the lead.

As Undyne lay on the bed, she watched with anticipation as Alphys made her way over to her. Alphys was normally so timid and shy, but there was something about being with Undyne that brought out a whole new side to her. A side that was confident, assertive, and downright sexy.

Alphys straddled Undyne's hips, her heart racing as she felt the warmth of Undyne's body against her. She gripped the headboard for support, her knuckles white with tension. "I-I've never done this before," she stuttered, her voice trembling slightly.

Undyne smiled reassuringly up at her. "I know, hon. I'm here for you. I want to make you feel good."

Alphys took a deep breath and nodded, her determination clear in her eyes. Slowly, she lowered herself onto Undyne's cock, feeling the familiar stretch of her opening. Undyne groaned softly, her eyes rolling back in her head as she felt Alphys' wet heat engulf her.

Alphys gasped, her body tensing up at the sensation. "S-sorry," she stammered, her cheeks flushing red with embarrassment. "I'm just not used to this."

Undyne reached up to stroke her hair gently. "There's nothing to be sorry about, Alphys. You're doing great."

With each passing moment, Alphys grew more comfortable with the sensation of being filled by Undyne. She began to rock her hips back and forth, taking control of the pace. Undyne moaned in approval, her fingers digging into Alphys' hips as she held on for the ride.

"I w-want you to be mine." Alphys stuttered into Undyne's ear. There was nothing inherently sexual about the words, it was just the way they were said. And the situation at hand.

"I see the way you look at others." Alphys' stutter became less noticeable the more she became confident in her words. "I-I just want you to look at me." She huffed. "I want you, Undyne."

Undyne only nodded quietly in response, trying to kiss at Alphys' neck and collarbone area the best she could.

As they moved together, their breaths mingling in the air, Alphys felt a wave of pleasure wash over her. She bit her lip to stifle a moan, her eyes squeezed shut as she focused on the sensation. Undyne growled in encouragement, her body bucking up to meet Alphys' thrusts.

Soon enough, Alphys felt her orgasm building, a tightening deep within her. She cried out, her voice breaking as she came, her walls pulsing around Undyne's cock. Undyne followed suit, her own orgasm hitting her like a tidal wave.

They started dating soon after that.