Rimuru Tempest - Blog Posts

@minisculeviper ‘s request for milim

I ABSOLUTELY LOVE THIS!!!!!!! MAY I PLEASE USE THIS FOR FANFICTIKN PURPOSES?!?!?!?!

I AM CURRENTLY REWATCHING THE ENTIRE ANIME SINCE I JUSR DISCOVERED SEASON THREE WAS OUT AND OH MY GOD, THIS IS JUST PERFECT. HE'D LOOK LIKE A BABY SHIZU WITH BLUE HAIR AND GOLDEN EYES AND GGGAAAAAAAHHHHHHHHH

I apologize for the capslock, I just fell in love with this AU concept HARD. It's so beautiful.

okay but guys, hear me out, tensura au where everything is the same, except rimuru can’t control the age of his different forms past his actual age.

meaning that, when he first gains his human form he’s maybe three or four months old, so his human form looks like

and if he wanted to, he could make himself look younger, but not older.

his brain still functions at its regular level, he just can’t really move much, or speak or all that other fun stuff

now this obviously makes things a little more complicated because it means he won’t be able to use his human form much at all for a few years yet.

but since he can taste in his human form, he does use it so that he can eat with the others, and can you just imagine a googly-eyed Rigurd feeding bby Rimuru and reminiscing about the days his sons used to be so tiny.

or like Benimaru just chilling at the head of the table with 6-month-old Rimuru lounging in his lap.

imagine there’s an important meeting with the leaders of different nations, and 3-year-old Rimuru is sitting there at the table, finger-painting, and the other leaders are kinda weirded out because whose baby is that and why is he here, but they don’t really pay attention to him, discussing Important Business™ with Rigurd. and then Rigurd looks towards the child and asks, “What do you think, Rimuru-sama?” and all the other nations leaders nearly shit themselves when Rimuru replies in a clear, intelligent voice, and in full sentences.

and of course, consider the fact that different species age at different rates! at 3 months old, his Tempest Wolf form would look like

and can you imagine how that would affect his dynamic with Ranga.

because on the one hand this is his master who can more than take care of himself, but on the other hand, he looks like a cub, and Ranga’s instincts are telling him he must protecc!!!

the reason that he is a girl asked him to vore her(its the most impactful moment in the show) and because she is the only human he ate he defaults to her form(or he defaults to her do to sentimental value).

the reason he is a child is that he is pretty childish(he says stuff like "amazeballs" unironeky) so a grown adult saying that would sound weird so a childish body fits better

i don't plan on the watching the anime but can someone tell me why the main character in 'reincarnated as a slime' looks like a 12 year old girl. isn't he supposed to be a man in like his late 20s

😍❤️❤️😍

22/12/13　3コマ漫画（リムル様+ディアブロ）

Kawaiiiii~~😍😍

poke poke

Rimuru relaxing in the water

More rimuru sama artworkkk eeee

It's so bright and bubbly compared to the usual art aka these

Returning to my (original) roots as a rimuru sama fanatic

Wooo

Words cannot describe how much I love this, it's actual perfection! I've reread it at least 10 times now and am attempting to inject it into my bloodstream atp

A Caller rated explicit After awakening as a Demon Lord, Rimuru was hesitant to leave the village for any reason, let alone a mission that could take prolonged time away from his people. Conveniently, a new subordinate is all too eager to please. Rimuru should have known there'd be a price to pay for a demons unwavering devotion, but he never would have guessed it would have come to this.

Having a demon for a secretary was proving to be more of a challenge than Rimuru initially suspected. Though Diablo’s entrance to the group felt a little unceremonious to him, the demon seemed nothing but joyous whenever asked to perform.

The problem lies in his efficiency- Diablo was by far the easiest solution to many of the problems and he was so eager to please, it was easiest to send him on the demanding missions gnawing away at him far from home. Benimaru is strong but not the most reliable, and Souei is reliable but leans towards being understated. 

Diablo, though wild in his own ways, was so devoutly loyal that Rimuru couldn’t help but rely on him. In hindsight, he may have overdone it a little. Kneeling before him, head hung low, the demon looked so remorseful that it stabbed like a knife into Rimuru’s chest. 

“What do you mean?” 

He’s bewildered- beyond that even and yet he feels so responsible for the hurt shining in the eyes that finally look up to him. 

“My lord,” Diablo all but whines. He seems hesitant, but Rimuru can’t guess what it could be about. “Please, I beg you to enlighten me on my misdeeds. I’ve repented heavily and despair in my state; won’t you please state your verdict?” 

Yeah, Rimuru’s no closer to figuring out what on earth brought him groveling at his heel and now he just feels bad. 

Notice- it appears the demon Diablo is seeking praise

“Diablo?” He settled on calling, though his voice was thicker than normal and betrayed his nerves. He did not respond, though he did preen in tragic pleasure. Frowning, Rimuru tried to find a way to make this as organic as possible. 

He stood, needing only a half step to reach the knelt figure. This was probably the only time it would be close enough, so Rimuru took full advantage and patted his new puppy on the head. “Thank you for all your hard work.” 

He looks confused, hesitantly hopeful and delirious from the contact. “You mean-?”

Carefully threading his fingers into the strands of hair, he tried to make this as abundantly clear as possible: “I am nothing but proud of you, Diablo.”

He cries out- something high pitched and keening, and it does something to Rimuru that it probably shouldn’t. With plenty of practice on Ranga under his belt, he moved his deft fingers down the back of his head and passed his cheek with gentle caresses before grabbing hold of his jaw loosely. 

The whole time Diablo sat fluidly leaning into the contact, eyes shut and lips tightly pulled down. “Please,” he shudders when the fingers make solid hold of him. 

Looking down at him, Rimuru felt nothing but despair for how he’d treated him so far. He’d never had a demonic subordinate before and must’ve been abusing his authority without knowing. No matter what it was, he’d make it up to him. 

“Please what?” He uses his free hand to push his bangs back and lightly trace his cheekbone with his thumb. The whine he earned from it left him warm and confused. “What can I do for you?” Rimuru feels like he’s the one begging right now, but he can’t help until he understands.

Diablo is biting his lip so hard it must hurt, and the fang peaking out matches beautifully with the dusting of blush on his cheeks. “Call for me,” he says breathly. 

Now he’s really confused. “You want to go on more missions?” He asks, and Diablo looks so increasingly hurt. 

“My lord, please- call my name once more.” His eyes are watering and Rimuru’s quick to wipe them away. 

“Diablo.” He says simply, and that alone is enough to have the demon’s knees falling apart, sinking him lower to the ground. “Diablo,” he addresses more this time, patting his head for emphasis. “Diablo,” he says with a bright smile, getting a rumbling from deep within the mans chest that sounds almost like a purr. “Diablo,” he calls, almost teasingly, and his eyes contract into thin, focused slits. 

“Diabl- oh!” He was trying for a breathless tone but was knocked back as his second secretary tackled him back onto the chaise in his office. 

“My lord,” Diablo whined and rubbed his face on his torso, “forgive me, forgive me,” but he continued to make contact with every inch of the front of Rimuru’s torso with his face pinched and legs shaking. 

“Diablo?” He called, voice questioning, but that only seemed to encourage him.

Rimuru barely had a moment to process what had just happened before Diablo’s trembling form pressed closer, the demon clutching at him with a desperation that seemed to radiate from his very core. It wasn’t aggression—no, there was no hostility in the way Diablo nestled into him, only an overwhelming need.

“Diablo, calm down,” Rimuru said softly, trying to keep his voice steady despite the odd warmth pooling in his chest. His hand instinctively settled on Diablo’s shoulder, but the contact only made the demon shiver more violently.

“I-I cannot,” Diablo stammered, his usual eloquence lost to raw emotion. He lifted his head just enough to meet Rimuru’s gaze, his crimson eyes wide and vulnerable. “You… you say my name so sweetly, my lord, yet I feel I have not earned such affection. Please, if I have wronged you, let me suffer for it properly—punish me as you see fit. Do not let me remain in this torment!”

Rimuru blinked, stunned. “Punish you? Diablo, what are you even talking about?”

The demon flinched, as if the gentle confusion in Rimuru’s voice cut deeper than any reprimand. “You’ve sent me away so often,” he said, his voice breaking. “While others bask in your praise and presence, I am cast aside like an afterthought or worse a nuisance. I thought—” He hesitated, his hands trembling as they clenched the fabric of Rimuru’s coat. “I thought perhaps you were displeased with me, that my devotion wasn’t enough.”

Realization dawned on Rimuru like a slap to the face. His own efficiency-focused mindset had blinded him to how Diablo might perceive his actions. “Oh, Diablo…” he murmured, threading his fingers through the demon’s silky hair again. “You’ve got it all wrong. I trust you more than anyone—that’s why I send you on those missions. I need someone I can count on, someone I know will handle things perfectly.”

Diablo’s lips parted in a soft gasp, his crimson eyes searching Rimuru’s for any hint of deception. “You… you mean that?”

“Of course I mean it,” Rimuru said firmly, “You are my favorite representation of Tempest when I’m away.” He cupped Diablo’s cheek, his thumb brushing away the faint trace of moisture there. “I’m sorry if I made you feel unimportant. You’re one of my most precious subordinates, Diablo. I’d be lost without you.”

The admission seemed to shatter something in Diablo. A sound escaped him—half sob, half moan—and he collapsed fully against Rimuru, his body trembling with a mix of relief and lingering tension. “My lord,” he whispered, his voice reverent, “you honor me beyond what I deserve.”

Rimuru sighed, letting the demon cling to him like a lifeline. “You deserve more than I’ve been giving you. So tell me—what can I do to make things right?”

For a moment, Diablo said nothing, his head buried against Rimuru’s chest. When he finally spoke, his voice was low and reverent, but there was an edge of need that sent a shiver down Rimuru’s spine. “Let me serve you,” he whispered. “Not with missions or tasks, but here, now. Let me prove my devotion in a way only I can.”

Rimuru’s breath hitched. “Serve me how?”

Diablo lifted his head, his expression one of raw, unrestrained worship. “Let me worship you, my lord. Let me show you how much you mean to me. I will bring you nothing but pleasure—I swear it.”

Heat rose unbidden to Rimuru’s face, but there was no denying the sincerity in Diablo’s gaze, nor the ache in his voice. His heart raced as he searched for the right response, unsure if he was ready for whatever line Diablo was willing to cross. But one thing was clear: the demon wasn’t asking out of selfishness. This was an extension of his loyalty, his love, his very essence.

And Rimuru… couldn’t bring himself to deny him.

Rimuru’s mind raced as Diablo’s words sank in. Worship him? Bring him pleasure? It wasn’t as if he hadn’t seen hints of Diablo’s overzealous devotion before, but this… this was something else entirely. Something intense, raw, and surprisingly vulnerable.

“Diablo…” he began, his voice soft, though his heart was thundering in his chest. “You’ve already proven your devotion a hundred times over. You don’t need to—”

“I must, ” Diablo interrupted, his voice trembling with emotion. “Please, my lord. I exist for you, and yet I’ve been deprived of even the smallest chance to express my adoration properly. Every moment I’ve spent away, every day without hearing your voice… it has been agony.”

Rimuru felt a pang of guilt twist in his ches t. He hadn’t meant to make Diablo feel this way, but the demon’s emotions were spilling out like a dam that had finally burst. And despite the awkwardness of the situation, there was something deeply moving about being the object of such devotion.

“If it’s that important to you…” Rimuru said hesitantly, searching Diablo’s face. “Then tell me what you need. How can I help you feel better?”

Diablo’s eyes glistened, his expression shifting into something both relieved and desperate. “Allow me to touch you, my lord,” he said softly. “To offer you the reverence you deserve. I want nothing more than to bask in your presence, to feel the warmth of your being, to ensure your happiness.”

Rimuru hesitated, feeling heat rise to his cheeks. The sincerity in Diablo’s voice was impossible to ignore, and despite the strange intimacy of the request, he couldn’t bring himself to deny the demon this. “Alright,” he said finally, his voice barely above a whisper. “If that’s what you need… I’ll allow it.”

The change in Diablo was immediate. His crimson eyes sparkled with unrestrained joy, and his trembling hands moved reverently, as if afraid to overstep. Slowly, he reached out and cupped Rimuru’s hands in his own, bowing his head as though in prayer.

“My lord,” he murmured, his voice thick with emotion. “You honor me beyond words.”

Diablo’s touch was featherlight at first, his hands brushing over Rimuru’s arms and shoulders as though committing every detail to memory. His movements were careful, almost reverent, as if handling something sacred. Rimuru’s breath caught as the demon’s fingers skimmed down to his sides, the tender touches sending unexpected shivers through him.

“You’re so warm,” Diablo whispered, his tone full of awe. He leaned closer, his head resting against Rimuru’s chest, and inhaled deeply, as if trying to absorb every ounce of his presence.

“Diablo, you’re…” Rimuru started, but his words faltered as the demon’s hands slid to his waist, pulling him closer.

“Let me adore you,” Diablo murmured, his lips brushing against the fabric of Rimuru’s clothes as if in silent worship. “Let me show you how deeply I cherish you, my lord. This is all I ask—just this moment to give you all that I am.”

Rimuru swallowed hard, his usual composure crumbling under the weight of Diablo’s overwhelming devotion. His hands found their way to Diablo’s shoulders, gripping them lightly as he tried to steady himself.

“I… trust you,” he said softly, his voice wavering but sincere. “Do what you need to, Diablo.”

The words had barely left his mouth when Diablo’s hands tightened, his movements growing bolder as he sank lower, pressing his forehead to Rimuru’s stomach. His voice, trembling with fervor, was barely audible.

“Thank you, my lord. Thank you…”

Diablo’s gratitude was palpable, his reverence spilling over into every trembling movement. His hands, still gentle despite their strength, slid down to rest on Rimuru’s hips as his forehead remained pressed against him. His breath was hot, his voice a quiet, adoring murmur.

“You are everything to me, my lord. My light, my purpose… my very existence belongs to you,” Diablo whispered, his words heavy with emotion.

Rimuru felt a mix of embarrassment and warmth at the demon’s intense devotion. He wasn’t used to being the object of such open worship—it was far beyond what even Shion’s adoration entailed. Yet, as strange as it was, he couldn’t deny that Diablo’s sincerity touched something deep within him.

“You don’t have to go this far, you know,” Rimuru said softly, his hands moving to gently pat Diablo’s head. “I’m already happy just knowing you’re loyal to me.”

Diablo looked up at him then, his crimson eyes glistening with unshed tears. “But I must, my lord. You’ve given me everything—a name, a purpose, a place by your side. I can never repay you for the gifts you’ve bestowed upon me, but… please, allow me to try.”

The intensity in his gaze left Rimuru breathless. Before he could respond, Diablo’s hands slid lower, wrapping gently around his thighs. The demon pressed his lips lightly against Rimuru’s stomach, even through the fabric of his clothes, the action more reverent than anything else.

“My lord,” Diablo murmured against him, his voice trembling with devotion. “You are perfection. I exist only to serve you.”

Rimuru’s cheeks burned, the intimate nature of Diablo’s words and actions stirring something unfamiliar within him. “Diablo, I…”

Before he could finish, Diablo tilted his head, pressing a soft kiss just above Rimuru’s waistband. The act sent a shiver coursing through Rimuru’s form, and he instinctively reached out to steady himself, his fingers threading into Diablo’s hair.

“You’re incredible,” Diablo whispered, his voice barely audible but filled with such reverence that Rimuru’s chest tightened. “So kind, so wise, so perfect… I want to give you everything.”

“Diablo,” Rimuru said, his voice cracking slightly as he gently tugged on the demon’s hair to make him look up. “You don’t have to prove yourself like this. You’re already enough—more than enough.”

Diablo’s expression softened, but his hands remained steady, his touch grounding. 

Rimuru barely had time to process Diablo’s radiant smile before the demon leaned in again, his movements painstakingly slow, deliberate, and filled with an almost holy reverence. Diablo’s hands were steady as they framed Rimuru’s hips, his touch featherlight, as if even the idea of handling his lord too roughly was unthinkable.

The first press of Diablo’s lips against Rimuru’s abdomen—barely a whisper of contact—sent an unexpected jolt through him. The way the demon kissed, s oft and lingering, felt more like worship than anything Rimuru had ever experienced. Each kiss was accompanied by a quiet, reverent murmur: a whispered "My lord," or a soft "You honor me."

“Diablo,” Rimuru murmured, his voice catching slightly as he shifted uncomfortably on the chaise. “You… you really don’t have to go this far, you know.”

“But I want to,” Diablo replied, his voice deep and velvety, tinged with an undercurrent of devotion that made Rimuru’s heart skip a beat. “This is not a task, my lord. This is my privilege. My joy.”

Diablo’s lips moved lower, trailing kisses down Rimuru’s torso, the intensity of his reverence never wavering. His hands slid upward, ghosting over Rimuru’s sides, his fingers tracing the curve of his waist with a tenderness that left Rimuru momentarily breathless. The contrast between Diablo’s strength and the gentleness of his touch was striking, a testament to the depth of his control and care.

“You are glorious,” Diablo whispered against Rimuru’s skin, his voice trembling with emotion. “Every part of you, every breath, every word… I exist to serve you, my lord, and nothing brings me greater pleasure than seeing you at ease.”

His words were intoxicating, laced with a kind of raw, unfiltered adoration that Rimuru had never encountered before. It was overwhelming in a way he hadn’t expected, and he felt himself growing warm under the intensity of Diablo’s gaze.

The demon’s hands moved again, sliding to rest on Rimuru’s thighs. His grip was firm but careful, and his crimson eyes lifted to meet Rimuru’s, a silent request for permission shining in their depths.

Rimuru nodded faintly, unsure of what else to do. The motion seemed to embolden Diablo, who let out a soft, contented sigh before pressing another kiss to Rimuru’s stomach. His lips lingered, and he inhaled deeply, as though committing Rimuru’s scent to memory.

“You are everything to me,” Diablo murmured, his voice low and reverent. “Every moment spent in your presence is a blessing, my lord.”

Rimuru shivered, his fingers instinctively tightening in Diablo’s hair. The demon made a low, pleased sound at the contact, his eyes fluttering shut as if savoring the sensation.

Diablo’s movements grew slower, more deliberate, as if he wanted to stretch the moment into eternity. He nuzzled against Rimuru’s torso, his breath warm and steady, and every action seemed designed to express his unwavering devotion.

For Diablo, this wasn’t just an act of service—it was a profound and deeply personal expression of his loyalty and love. Every touch, every kiss, every whispered word brought him pleasure, not because of what he received, but because of what he could give. Serving Rimuru in this way, bringing him comfort and ease, was the highest form of fulfillment he could imagine.

And as Rimuru watched him, his own heart racing, he couldn’t help but wonder if he’d ever truly understood just how deeply Diablo’s devotion ran.

Diablo’s worship grew bolder, his movements deliberate and unhurried as if savoring every second of this intimate moment. His lips trailed a slow, reverent path along Rimuru’s skin, each kiss an unspoken prayer, each touch igniting a spark that burned hotter with every passing moment.

Rimuru’s breath quickened, his hands reflexively tightening in Diablo’s hair, the silken strands slipping through his fingers. The faint tug drew a low, rumbling sound from the demon’s chest, something between a growl and a purr, and the sheer intensity of it sent a shiver down Rimuru’s spine.

“Diablo…” Rimuru whispered, his voice barely audible, thick with something he couldn’t quite name.

“Yes, my lord?” Diablo’s gaze flicked upward, his crimson eyes glowing with a mix of adoration and something far more primal. His lips parted, and he exhaled softly, his breath warm against Rimuru’s skin. “Do you wish for me to stop?”

The question hung in the air, heavy and charged. Rimuru hesitated, his thoughts a whirlwind of uncertainty and rising tension. “I…” he began, but the words caught in his throat as Diablo’s hands slid up his thighs, his fingers pressing just firmly enough to make Rimuru acutely aware of their strength.

“Forgive me,” Diablo murmured, his voice a low, velvety hum. “But I cannot help myself. To be this close to you, to touch you, to feel you—it is more than I ever dreamed possible.”

Rimuru’s face flushed a deeper shade of red, his usual composure slipping away entirely. “You’re, uh… really intense, you know that?”

Diablo’s lips curved into a soft, almost mischievous smile. “Intense?” he repeated, his tone teasing yet still laced with that same unwavering devotion. “Forgive me, my lord, but how could I not be, when the object of my every thought and desire sits before me?”

The words struck a chord deep within Rimuru, leaving him simultaneously flustered and inexplicably drawn to the raw sincerity in Diablo’s voice. Before he could formulate a response, the demon leaned in once more, his lips brushing against Rimuru’s side, just above his waistband, with a tenderness that made Rimuru’s breath hitch.

Diablo’s hands moved again, sliding up to Rimuru’s waist and then to his back, pulling him closer with a reverence that bordered on desperation. His head rested against Rimuru’s stomach for a moment, and he let out a shuddering breath, as though grounding himself in the presence of his beloved master.

“My lord,” Diablo whispered, his voice trembling with emotion. “You are… divine. Perfection incarnate. To serve you like this, to bring you even a fraction of the pleasure you bring me simply by existing… it is all I desire.”

Rimuru’s chest tightened, his heart pounding as the tension between them built, palpable and almost overwhelming. Diablo’s devotion was like a fire, fierce and consuming, and Rimuru could feel himself being drawn into its heat despite the confusion swirling in his mind.

“Diablo, I…” he started, his voice wavering. But the demon didn’t let him finish.

“Shh, my lord,” Diablo murmured, his hands steadying Rimuru as he pressed another kiss to his stomach, slower and more lingering this time. “You don’t need to say anything. Just allow me this… allow me to show you how deeply I adore you.”

The words were a plea, a promise, and a confession all at once, and Rimuru found himself unable to deny Diablo’s request. The tension between them crackled like a storm, and as Diablo’s touch grew bolder, Rimuru could feel the heat rising, the moment teetering on the edge of something profound and uncharted.

As Diablo's lips continued to trail along Rimuru's skin, he slowly began to remove the demon lord's clothing. Each article of fabric fell to the floor with a gentle rustle, revealing more of Rimuru's pale, smooth flesh. Diablo paused briefly to admire each newly-exposed inch, his eyes burning with a mixture of hunger and reverence.

 He kissed Rimuru's collarbone, his tongue darting out to trace the curve of his neck, sending goosebumps rippling across Rimuru's body. As he pulled away, he gazed up at Rimuru with such fervor that Rimuru felt his knees weaken slightly. 

"Your skin," Diablo breathed, his voice thick with awe. "It's like moonlight on water." And with that, he lowered his mouth to Rimuru's chest, tracing lazy circles around one nipple before moving to the other. Rimuru gasped, his entire body tensing with pleasure as Diablo's tongue flicked over his sensitive peaks. 

With every stroke, Diablo seemed to become more frenzied, more consumed by his devotion. When he finally lifted his head, his eyes blazed with an almost feral intensity. "Allow me, my lord," he said, his hand trailing down Rimuru's torso until he cupped one hip. "Let me taste the rest of your beauty." 

And without waiting for permission, Diablo buried his face in Rimuru's groin, moaning contentedly as he explored every inch of Rimuru's clothed shaft with his tongue. Rimuru closed his eyes, his whole body wracked with sensation. It had been so long since anyone had touched him like this - with such reverence, such care. Diablo's lips moved up and down his length, wet and eager. 

For a fleeting moment, Rimuru forgot everything else - forget about the war outside these walls or the secrets hidden beneath his own skin. All he knew was the way Diablo's hands gripped his hips tightly, the warmth of the demon's body pressed intimately against his own. In that moment, nothing else mattered except for the way Diablo's passion was consuming him utterly. 

As Diablo's hands reached for Rimuru's waistband, he froze. He glanced up at Rimuru, his expression uncertain. "Are... Are you sure?" Diablo asked tentatively, his voice breaking the spell they'd both fallen under. Rimuru blinked, feeling suddenly self-conscious. 

He wasn't used to being vulnerable, to allowing someone to see all of him laid bare. But there was no denying the depth of Diablo's devotion - the way his eyes gleamed with pure, unadulterated desire. Without hesitation, Rimuru nodded. 

"Go ahead," he said softly. And with that, Diablo pulled Rimuru's pants off completely, exposing him fully to the room's dim light. Diablo's hands roamed over Rimuru's hips and inner thighs, exploring every crevice with a reverential touch.

Rimuru watched, transfixed, as Diablo knelt before him, eyes fixed intently upon Rimuru's member. And then, with a single, decisive motion, Diablo took Rimuru into his mouth. 

Rimuru cried out, his body arching upwards as Diablo's tongue swirled around him, sending waves of ecstasy throughout his frame. Diablo sucked hungrily, seeming to draw all of the pleasure into himself with an almost supernatural force. 

He pulled his head back to swirl around the tip, tongue dipping in to gather the salty pre-cum.

Rimuru's hands grasped at empty air, desperate to hold onto something solid amidst the dizzying sensations coursing through his veins. And then, with a final suckling noise, Diablo released him, his eyes shining brightly in the dark. 

"That's it," he breathed. "Now, allow yourself to surrender completely to me, my lord." Rimuru's breath came in ragged gasps as Diablo guided him sideways, where Rimuru sank gracefully and let his legs fall apart. As Diablo rose beside him, his eyes glittering with desire, Rimuru closed his eyes and allowed himself to be enveloped by the darkness.

Diablo approached Rimuru's quivering form with a sense of intense focus. His fingers traced delicately over Rimuru's stomach, causing shivers to ripple through the slime god's body. Then, without warning, Diablo pushed Rimuru back onto the cushions, spreading his legs wide apart. 

The demon's gaze never left Rimuru's face as he leaned forward and ran his tongue from Rimuru's perineum up to his anus. Rimuru let out a soft whimper, his muscles clenched involuntarily at the intimate contac t. 

Diablo licked again, circling Rimuru's opening with his tongue, teasing him mercilessly. Finally, with another low growl, Diablo inserted two fingers into Rimuru's ass. 

Rimuru moaned loudly, his head falling backward as Diablo worked his digits deep within him. He could feel Diablo's thumb rubbing gently against his prostate, sending shockwaves of pleasure through his body. 

Diablo removed his fingers, leaving Rimuru panting and wanting more. Rimuru opened his eyes just enough to catch a glimpse of Diablo's leering smile as the demon positioned himself between Rimuru's spread legs. 

Rimuru felt a sudden weight press heavily against his entrance, and he winced slightly, bracing himself for the pain. However, instead of pushing in roughly, Diablo eased himself inside Rimuru bit by bit, taking his time to ensure maximum pleasure for both parties involved. 

Once fully embedded, Diablo started pumping into Rimuru with slow, deliberate strokes. Their bodies were slick with sweat as their movements grew faster and harder. Diablo's grip tightened around Rimuru's hips as he fucked him relentlessly. 

“Please,” he cried out, and Diablo looked at him wide-eyed.

“My lord?” 

He's writhing on the bed, desperately bucking his hips  and ignoring his leaking cock. “Please!”

Diablo understood the meaning behind Rimuru's plea, and he picked up the pace of his thrusts even further. The sound of flesh slapping together filled the room as they moved in perfect sync. Sweat dripped down their faces as their breathing became labored.

Diablo’s pistoning his hips into the demon lord, wincing at the gummy walls sucking him in. It’s almost too much, but he also expected no less from his lord. 

With one last hard push, Diablo buried himself deeply inside Rimuru, holding still as the waves of pleasure washed over them both. They collapsed onto each other, Rimuru shaking as the hot pump of demon seed spread inside him.

Less than a second passes before Diablo’s rocking back into him, hand snaking behind Rimuru’s neck to hold him steady. 

When the whines and gasps fall from Rimuru’s mouth right beside the demon's ear he groans something deep and promising, and Diablo surges forward to leave teeth marks all around his neck.

“Ngh- God,” Rimuru’s crying, sobbing while clutching onto the back of Diablo's hair and jacket. His wish to touch the other man's skin was so potent the fabric dissolved beneath his fingertips as he finally made contact. “More,” he pleads.

It’s enough to have Diablo desperately hitting against his master's prostate, biting his tongue harshly to keep his control after nearly piercing his lord's skin. 

“My lord,” He purrs, pressing the slimes knees upwards to bend him in half, relishing in how deep he sinks within the new angle. 

He’s rewarded with a scream and harsh squeeze from within his glorious lord. “So perfect,” he whimpers, feeling warmth in his hand as he begins to stroke his master's dick which lays pulsing between them. 

He’s coating Diablo in his release, leaving it dripping from his lips and jaw, and the delicious taste that hits his tongue is salvation- the warmth sucking in his bursting sperm a satisfied judgment day.

For long moments afterward, they lay entangled in each other's arms, lost in the afterglow. Eventually, Rimuru lifted his head and gazed into Diablo's eyes. There was a newfound tenderness there, mixed with the raw desire that had consumed them both earlier.

"Thank you," Rimuru whispered, his tone heavy with emotion.

Diablo smiled softly, tracing gentle circles across Rimuru's chest. "You have no need to thank me, my lord. This is what I want, and I will always do whatever it takes to please you."

Rimuru closed his eyes once more, basking in the warmth of Diablo's words and actions. “Such a good boy,” he breaths out, letting his fingers trace his hard chest.

They remained like that for some time longer, reveling in the quiet intimacy of the moment. 

“Please,” Diablo carefully breaks the delicate silence in the room, “call for me again.”