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Obsidian Desires

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A arrogant and possessive demonic lord and a defiant yet caring glass incubus are in a relationship and bdsm master/slave and dom/bratty sub relationship, living in a modern fantasy world. The demonic lord, a hugely imposing and muscular figure, produces eggs from his cock, with edging causing more eggs to be produced in his balls. The eggs grow quickly, taking a day to grow hugely large, heavy, and spiky. The lord manages this by using the incubus as a breeding mount, fucking eggs into the incubus’s womb and reveling in the incubus’s erotic pleasure as the eggs grow. The incubus enjoys submitting and also enjoys teasing and edging the lord.

Chapter 1: The Throne of Impatience

The throne room breathed. It was a slow, deep tide of shadow and hellfire, the sigils carved into the jagged obsidian walls pulsing like veins with each exhalation. Crimson light bled into violet across the cavernous ceiling, a perpetual twilight stained with power.

Azazel, Lord of the Seventh Deep, shifted on his throne. The curved slab of polished black stone was still warm from the last supplicant, the air thick with the iron-tang of old sacrifice and his own growing impatience. He stretched, the corded muscle of his arms—skin the color of a starless night—rippling. His claws, each as long as a dagger, tapped a monotonous rhythm against the armrest.

The source of his distraction was a tangible, aching pressure. Beneath the layer of tough hide and muscle, his balls were swollen, heavy with a clutch of eggs that demanded to be laid. The discomfort was a dull, persistent throb, a constant reminder of purpose unfulfilled. He needed his incubus. He needed Zephyr.

And Zephyr was late.

A twist of annoyance flared in Azazel’s gut, mingling with the heat of anticipation. The little glass pest was doing this on purpose. Again. Defiance was part of their dance, of course—a spice Zephyr seemed to crave as much as the pain—but tonight the delay scraped against Azazel’s raw need.

The great doors at the far end of the hall, iron banded with hell-forged bronze, groaned open without a touch. A sliver of cooler, corridor air slithered in, and then he was there.

Zephyr paused in the doorway, a silhouette of refracted hellfire. His body, a masterpiece of opaque, milky glass, caught the unstable light and shattered it into a thousand faint, glowing shards within him. The arcane energy that was his lifeblood swirled lazily behind his chest, a captive nebula. He was slender, delicate of feature, with a lean strength built for grace, not war. His bare feet made no sound on the stone as he stepped inside, the doors rumbling shut behind him.

“You summoned, my lord?” Zephyr’s voice was like polished quartz, smooth with a hidden edge.

Azazel’s glowing eyes tracked him as he approached. The incubus moved with a teasing slowness, his hips swaying just enough to be infuriating. The view was, as always, compelling. The smooth glass between his legs, formed into a sleek, feminine slit, glistened faintly with its own readiness. Zephyr knew what he was here for.

“Don’t play stupid,” Azazel rumbled, the sound echoing in the chamber. “You stink of the upper realms. Moonlight and mortal sweat.”

Zephyr reached the dais and knelt, not in submission, but in presentation. He looked up, a sly smile touching his lips. “I was bored. You were… brooding. I went for a walk.”

“A walk.” Azazel leaned forward, the throne creaking. The infernal heat radiating from him made the air around Zephyr waver. “Through a monastery, by the scent of it. Did you break a vow of chastity or just several bones?”

“A little of both.” Zephyr’s smile widened. He leaned forward on his knees, placing his hands on Azazel’s thick thighs. The touch was cool, smooth. “The young ones are always so tense. They need… release. I was charitable.”

Azazel’s hand shot out, too fast to follow, and clamped around Zephyr’s throat. He didn’t squeeze to harm, not yet, but to hold. To feel the frantic pulse of energy beneath the glass. “You are my charity. My property. Your purpose is here.” He used his grip to pull Zephyr closer, until the incubus was between his spread knees, the immense, hot weight of Azazel’s sac nearly brushing Zephyr’s chest. “You feel this? This is your doing. Your absence.”

Zephyr’s breath hitched, but his eyes sparkled with mischief, not fear. He nuzzled against the heavy, heated flesh, the gesture almost affectionate. “Poor old devil. All stuffed full and no one to blame but yourself. Maybe you should have called one of the succubi instead. Less trouble.”

A low growl vibrated through Azazel’s chest. He released Zephyr’s throat only to twist his fingers in the incubus’s hair, pulling his head back sharply. “They cannot take what you take. They break. You…” He dragged the blunt edge of a claw down Zephyr’s front, a hard, scraping line that left a bright, white score on the glass. Zephyr gasped, a shudder of pure pleasure rolling through him. “You enjoy it. You need it as much as I need to give it.”

He was right. Zephyr’s energy core flared, swirling faster, brighter behind his ribs. The scored line on his chest gleamed. “Maybe,” he breathed, his voice gone husky. “But I like making you wait. I like seeing you like this… all need and no patience. It’s cute.”

“Cute.” Azazel snarled the word. With his other hand, he pushed at Zephyr’s shoulder, a forceful command. “Enough games. Up. Now.”

Zephyr went, his movements fluid. He rose and, without further prompting, climbed onto the broad, slick surface of the obsidian throne. He settled himself astride Azazel’s lap, facing him, his glass knees finding purchase on the cold stone on either side of Azazel’s hips. The position was intimate, dominating in its own way, and it brought their faces close.

Azazel looked up at him, at the incubus perched above him like some beautiful, blasphemous idol. He ran his hands up Zephyr’s thighs, the rough texture of his palms a violent contrast to the seamless glass. “You will take every one,” he said, his voice a promise and a threat.

“Or what?” Zephyr challenged, leaning down so their foreheads almost touched. His energy was a cool glow against Azazel’s infernal heat.

“Or I will keep you here, pinned and full, until the next clutch is ready. You will live as my vessel, nothing more.” Azazel’s hands settled on Zephyr’s hips, his grip like heated iron.

For a moment, Zephyr was silent. Then, that sharp, beautiful smile returned. He lowered himself, the slick, giving glass of his sex meeting the thick, blunt head of Azazel’s cock. It was not shaped for pleasure, but for function—a biological delivery system.

“Promise?” Zephyr whispered, and then he sank down.

The fit was punishingly tight, a stretch that bordered on fracture. Zephyr threw his head back, a silent cry on his lips as he was speared, filled, claimed. Azazel watched, his own breath hissing through his teeth, as the incubus’s internal energy swirled into a frantic, bright storm. He could see it through the opaque glass, a galaxy in distress.

“You… are a monster,” Zephyr gasped, riding the wave of pain-pleasure, beginning to move.

Azazel’s hands tightened on his hips, setting a brutal, relentless rhythm. “And you,” he grunted, the first egg beginning its arduous passage, “are mine.”

The first egg was a universe of pressure. Azazel slammed Zephyr down onto his lap, forcing the impossible width deeper. Zephyr’s back arched, a soundless scream etching itself across his face as his inner walls, forged of magically-tempered glass, were stretched to a terrifying, brilliant thinness. Inside Azazel, the egg began its journey up his shaft. It wasn't smooth. It was studded with microscopic, calcified spikes—a biological imperative to anchor it in a host.

It ripped its way out of him.

Azazel’s roar shook the throne room. It wasn’t a roar of pleasure, but of raw, shredding pain. His claws dug into the obsidian throne, scoring deep grooves as fire lanced up his cock. The egg forced his urethra wide, each tiny spike a scalding brand. His hips jerked involuntarily, fucking Zephyr harder onto him as the agony crested into a brutal, devastating orgasm. Seed poured from him around the invading egg, a hot flood that Zephyr’s body drank greedily.

“Fuck! Fuck, Azazel—” Zephyr choked, his own body seizing. The stretch was monumental, a filling so complete it bordered on disintegration. But within that shattering pressure, his core ignited. An orgasm tore through him, glassy and sharp, a cascade of prismatic light that burst from his skin. Erotic energy, thick and sweet as corrupted honey, leached into the smoky air.

Azazel gasped, the pain still vibrating in his teeth. But as Zephyr’s energy hit him, his spent cock, still buried to the hilt, twitched violently. The terrible, satisfying emptiness in his sac was already being replaced. He felt the next egg begin to form, swelling rapidly, fed by the very energy Zephyr had just spilled.

“Again,” Azazel snarled, voice shattered. He couldn’t stop. The cycle had begun.

He manhandled Zephyr’s hips, lifting him almost off before driving him down with punishing force. The second egg was already crowning. This one felt bigger. The spikes raked his inner flesh on the way out, a white-hot violation that coiled his spine. Another orgasm was ripped from him, convulsive and brutal. He saw black spots at the edges of his vision.

Zephyr was sobbing, but it was a sound of ecstatic ruin. “Yes—yes, there, please—” His body clamped down, milking the egg as it was deposited deep inside him. The stretching fullness triggered another climax for him, shorter, sharper, another gush of that luminous energy. The air grew heavy with it, a pheromonal mist that burned Azazel’s lungs and made his blood sing with fresh, agonizing need.

His balls, already refilling, tightened anew. The third egg was ready too soon. Far too soon.

“I can’t—it’s too fast,” Azazel grunted, a moment of shocking vulnerability torn from him. The pleasure was indistinguishable from the pain, each orgasm a seismic event that left him weaker, more sensitive, more achingly full.

Zephyr, trembling, wrapped his cool arms around Azazel’s neck. He pressed their foreheads together, his voice a thin, steady thread in the chaos. “You can. You are. Give it to me. All of it.” He shifted, angling his hips, and took the initiative, sinking down as the next egg began its torturous path.

Azazel cried out, the sound broken. The spikes were fire. The release was a tsunami. He fucked up into Zephyr with ragged, desperate strokes, each drive home a fight against the overwhelming sensitivity. Zephyr chanted nonsense into his skin, praise and filth and comfort all woven together, his body humming, constantly tipping over new edges as Azazel’s monstrous cock rearranged him.

On and on it went. A fourth egg. A fifth. The throne was slick with fluid, both clear and dark. Azazel was shaking, his immense strength rendered useless by the relentless feedback loop of pain-orgasm-renewal. Every time Zephyr came, the energy refueled the factory in Azazel’s groin, demanding more, giving no quarter.

Zephyr clung to him, an anchor in the storm. He kissed the space between Azazel’s horns, licked the salt from his temple, whispered, “My lord, my monster, mine,” as Azazel sobbed through another crushing release, his body violently emptying an egg that was immediately replaced by the ghost of the next. The world narrowed to the slick, brutal joining, to the shared, shattering rhythm of their impossible consumption of each other.

The world narrowed to the slick, brutal joining, to the shared, shattering rhythm of their impossible consumption of each other. Zephyr's glass body clicked and creaked with strain, a precarious vase filled to bursting with liquid fire. His moans had long since dissolved into a continuous, ragged whine, punctuated only by the wet, tearing gasp that accompanied the arrival of each new egg.

Azazel wasn't faring any better. His roars had become choked grunts, his immense body trembling with the effort of each thrust. The pleasure was a raw, open wound, and the pain of the eggs' passage was the salt rubbed into it. Every time Zephyr clenched around him in climax, it milked another one free, and every time one was ripped from him, Azazel's own orgasm was a brutal, debilitating seizure that left him weaker, more sensitized, more hopelessly full than before.

"Can't," Azazel slurred, his head lolling back against the throne. His vision swam with tears of strain. "Fucking... can't..."

"You can," Zephyr whimpered, his voice a shredded ruin of its former teasing melody. He was plastered against Azazel's chest, a doll of glass and spent energy. "One more.Just one. For me."

It was a lie. It was always a lie. There was never just one. Azazel's balls, enormous and taut, throbbed with a pressure that defied physics. They felt heavier now than when they'd started, a sack of endless, spiked stones. But the command, the plea in Zephyr's voice, ignited the last dregs of his possession. With a snarl that held no anger, only utter exhaustion, he bucked his hips upwards.

The final egg tore free.

Azazel's scream was silent, his body arching so violently he felt his spine might snap. Seed, thin and spent, trickled from him. Zephyr didn't even cry out. He simply went rigid, a silent, twitching statue, as the last of the clutch settled deep within him, completing the impossible fullness. The faint, prismatic glow inside him was smothered, crowded out by the opaque, rounded shapes now packed into his womb.

They collapsed.

Azazel slumped back, breath sawing in and out of his lungs like a bellows on its last legs. Zephyr lay bonelessly atop him, a dead weight, his cheek slick against Azazel's pectoral. The incubus didn't move. He couldn't. The slightest twitch sent a nauseating shift through the cache inside him. Azazel, pinned beneath him, was in no better state. His cock, still impossibly hard and throbbing, remained buried to the hilt in Zephyr's stretched, clutching heat. The overstimulation was a live wire, jolting through him with every minute pulse of Zephyr's exhausted body. It was agony. It was the only thing keeping him conscious.

Minutes bled into each other. The hellfire torches guttered. The only sound was their ragged breathing and the slow, tortuous drip of fluids onto the obsidian floor.

Slowly, with a groan that started in the depths of hell itself, Azazel began to move. It wasn't the powerful surge of before. It was a glacial, agonizing push. He managed to slide his arms under Zephyr's limp form, muscles screaming in protest. He sat up, the movement causing Zephyr to whimper softly as the eggs inside him rearranged their terrible weight.

Standing was a Herculean feat. His legs shook. The sensitive head of his cock dragged against Zephyr's inner walls with every micro-movement, a torture so exquisite he saw stars. Zephyr was a leaden weight in his arms, head lolling back, utterly spent.

Azazel staggered from the dais, each step a precarious victory. He carried his burden to the far wall where heavy chains, cold and black, hung from bolts driven deep into the stone. With a last, tremendous heave, he lifted Zephyr, guiding the incubus's slender wrists into waiting manacles. He clamped them shut. The chain was short. When Azazel let go, Zephyr's body sagged, suspended. His toes strained, brushing the floor, but his feet couldn't find purchase. His full weight was held by his shackled wrists.

The shift was immediate and brutal. Zephyr's eyes flew open, a shock of awareness returning. A low, pained moan escaped him as the dozen orbs inside him settled lower, pressing with renewed urgency against every tender, strained surface. His body was a pendulum, the slightest sway from Azazel's retreating steps causing the spiked eggs in his womb to shift and grind.

Azazel stumbled back, finally free of the searing clutch of Zephyr's body. The cool air of the chamber hit his wet, trembling cock, a new kind of shock. He looked down at himself. His shaft was still fiercely erect, an angry, veined column. His balls hung swollen and ponderous, visibly fuller than they'd been even at the start of their ordeal. The emptiness was an illusion. The pressure had not abated. It had multiplied.

He looked back at Zephyr, strung up like a beautiful, blasphemous trophy. The incubus’s head was bowed, sweat or condensation sheening his glass skin. His stomach, usually flat, had a subtle, rounded firmness to it. Every ragged breath he took made it quiver.

"See what you've done?" Azazel's voice was a dry rasp. He took a step closer, his own need a monstrous, unsated thing clawing at his gut. The sight of Zephyr, filled with his offspring, vulnerable and chained, sent a fresh, violent throb through his aching cock. The next clutch was already brewing, a dam about to break.

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