schlup… schlup…
The pressures were staggering. Gravity and its own weight impaled on her massive shaft as it speared upward into the creature's dark pussy. The obscene, wet sounds of impalement filled the bubble as the obsidian skin stretched and bulged ridiculously, Lyssandra's cockhead clearly visible as it distended its belly.
The shadow-doppelganger began to ride Lyssandra's cock, rising until only the tip remained trapped inside the cold embrace of its pussy, then slamming its weight down forcefully.
The impact drove the air from Lyssandra's lungs. The bulge in the obsidian belly moved visibly with each movement, like a trapped python shifting beneath the smooth, dark skin.
"You… really shouldn't… have gone to… that dungeon core…" it grunted between downstrokes, punctuating each word with a wet, slapping impact of its body against hers.
Plap! Plap! Plap!
"That greedy… little quest for power… set off… a sequence… that could unravel… this entire realm!"
"What?" Lyssandra gasped, struggling to focus through the haze of sensation, the shock, and the sheer power of the creature riding her. "W-Why? What sequence? What realm?"
The doppelganger paused mid-stroke, its obsidian eyes boring into her with sudden, chilling intensity. "I said… SHUT. UP." Its voice cracked like a whip. "And listen!"
As it spoke, a sudden change happened. Its already massive obsidian cock, lying thick and heavy against Lyssandra's stomach, began to stretch and lengthen. It grew, snake-like, winding up her torso with unnatural speed, glistening darkly as it coiled.
"Ngh!" Lyssandra choked out a surprised grunt. The shadow-cock slithered up the valley between her massive breasts, cold and unyielding against her heated skin, its head questing towards her face.
She opened her mouth to protest or scream, but the act only created a perfect target.
The dark shaft plunged forward, jamming into her open mouth and down her throat with brutal force, silencing her instantly.
Lyssandra gagged, eyes bulging, tears pricking her lids as the monstrous girth stretched her lips painfully wide and filled her throat utterly. Saliva spilled from the corners of her mouth around the violating invader.
"Ugh…" it grunted in apparent satisfaction, grinding its hips harder, the dual penetration making Lyssandra's body jerk and tremble beneath it.
"Mmm… fucking myself… always the best…" it purred, rolling its hips in a circle. The motion sent ripples through the bulges in its abdomen where Lyssandra's cock stretched its insides.
Abruptly, it snapped its dark fingers with a sharp crack that seemed to echo through the void. Beside them, from the invisible floor, a large, white marble bathtub materialized.
Steam curled from its surface, the water within milky white and seemingly luminous. The tub was deep and wide, easily able to hold three or more people, positioned perfectly beside the writhing pair.
Still impaled on Lyssandra's cock and silencing her with its own, the doppelganger effortlessly slid sideways, lifting Lyssandra's lower body with its powerful hands.
In one smooth, inhumanly strong motion, it shifted both their interlocked forms into the steaming tub. Hot, silky water splashed as they landed, instantly enveloping them in the milky warmth. The contrast between the cold flesh of the double and the heat was shocking.
Now submerged up to their waists in the glowing water, the doppelganger resumed its punishing pace. It drove itself down on Lyssandra's penis while simultaneously thrusting its own deeper down her throat, a violent pistoning motion that made the water slosh and slap rhythmically against the sides of the tub.
Squelch-squelch-squelch!
"Just remember this," it hissed, leaning down until its cold lips brushed her ear, its breath icy against her heated skin, even as its cock violated her mouth mercilessly.
"The stronger you grow… the greater the threats you'll draw… Your enemies are beyond anything you can imagine… beyond anything this realm has ever faced… They won't just defeat you…" It paused, giving an extra-deep, bone-jarring thrust with both shafts.
Lyssandra's vision swam. Her senses overloaded by the crass penetration, the searing heat of the bath, and the chilling words whispered directly into her.
The dual rhythm became frantic. Their bodies slammed together with increasing fury, water sloshing violently over the sides of the tub in waves. Lyssandra could feel the pressure building unstoppably at the base of her cock, a tsunami of sensation drowning all reason.
The doppelgänger ground its hips with merciless force, its cold, obsidian pussy clamping down like a vise around her girth.
"NNNGH!" A strangled groan escaped around the invading cock in her throat as her climax ripped through her. Her cock erupted. Hot, potent seed flooded the shadowy depths of the doppelganger's pussy, blast after searing blast. It felt endless, like a dam bursting after a century of drought.
The doppelganger's belly distended absurdly, bulging outward like a grotesque balloon as the sheer volume filled it. The smooth, black skin stretched taut, transparent enough to see the thick, white seed sloshing inside, bloating as it flowed from deep within Lyssandra and pumped into the shadowy vessel.
"So… much," it gasped, a wicked, triumphant smile spreading across its dark lips.
"See? Can't hold back at all. Such a weak, horny slut." Its own cock twitched violently inside Lyssandra's throat.
From the thick, obsidian base, distinct bulges began to form, rippling upwards like living knots beneath the dark skin.
One after another, the large, darkly coloured knots pulsed, travelling the incredible length of the shaft. They flowed with a viscous, peristaltic motion.
The first knot reached Lyssandra's lips and pushed. She gagged harder, eyes wide with panic as her throat convulsed involuntarily, trying desperately to reject the intrusion. But the knot forced its way in, stretching her throat impossibly wide as it slid downwards.
The second knot followed almost instantly, jamming itself in behind the first, a thick wad of the doppelgänger's monstrous load.
More followed in rapid succession, thrumming up the long shaft and surging down Lyssandra's gullet like an inexorable tide.
"Time to fill you up, my weak half," the doppelgänger hissed. "Taste the power that should have been MINE!"
The knots flowed steadily now, pumped from the very depths of the obsidian creature. Its own climax was colossal, the sheer volume beyond Lyssandra's comprehension.
Gulp Gulp Gulp.
The dark, viscous seed rushed down her throat, pouring into her stomach with shocking speed. The pressure built rapidly, intense and unrelenting.
Then, with an internal tearing sensation and a gush of horrifying warmth, Lyssandra felt the seed rupture out of her intestines, bursting through membranes with brutal efficiency.
It flowed into her colon, a scalding torrent of unnatural black seed, searching for an exit.
Whoosh…!
Lyssandra's anus gave up under the immense pressure. The tight, pink pucker stretched wide, yielding to the inexorable force of the flood.
With a wet gurgle, the first eruption of thick, black semen burst from her stretched sphincter, shooting into the warm water.
"FUUUUUCK!" she finally managed to scream around the cock filling her throat, her voice raw with agony and violation. The pain was unreal, but the sensation of release as the pressurised fluid exited her was strangely intense.
The black seed fountained from her ass, landing in the bathtub with heavy splats. It didn't stop. Knot after knot continued to flow down her throat, filling her stomach beyond bursting point, overflowing into her bowels and forcibly expelled from her anus in pulsing waves.
SSSSHHHHHH… PLIP! PLIP! PLIP!
The dark liquid cascaded out, adding to the milky white water. It spread rapidly, swirling like ink in cream, darkening the bath. The sheer volume was astonishing.
The water level rose up Lyssandra's submerged hips, up past her waist, up her ribcage towards her massive breasts. Higher and higher it climbed, fueled by the unending stream from her violated anus.
Soon, only their heads remained above the surface, a grotesque mix of milky bathwater and obsidian sperm rising almost to their chins. Thick, black strands floated on the surface, clinging to Lyssandra's pale skin and the dark body of her doppelgänger.
Steam, thicker and darker than before, rose in waves from the unnaturally hot liquid, swirling around their heads and carrying the pungent, overwhelming scent of their mingled essences – sweet, sharp, utterly overpowering.
"Ahhh~~~…" The doppelgänger's moan was long, drawn-out, filled with twisted satisfaction as it finally pulled its impossible length from Lyssandra's throat. The thick, pitch blackshaft slid out with a vulgar schlorp and a shower of drool and precum.
It gazed down at Lyssandra's dazed, unfocused expression, her beautiful features slack, still riding the waves of her own violent orgasm. Her own massive cock continued to twitch and spasm inside the doppelgänger's bulging pussy, still pumping load after load of hot seed.
"Tsk tsk," it clicked its tongue impatiently, though its own face twisted with pleasure at the sensation of her pulsing girth filling it. "Listen up, you slut, when someone is giving you crucial information. I mean me. Giving myself crucial information."
As it spoke, a subtle ripple occurred deep within its swollen abdomen. Just above where Lyssandra's cock plunged deep inside, a tiny, pointed protuberance pushed against the glistening black wall of its inner folds.
A tiny black tendril, barely the thickness of a fingertip but moving with impossible speed and purpose, snaked out and unerringly found the opening of Lyssandra's urethra.