Demon King Reigns 1
“D-dear… hubby!”
Mystic River’s cry echoed through the empty air. She didn’t even have time to check on her husband, Ben Hailun’s condition. A black mass was hurtling toward her like an arrow.
But her movements were as fluid and swift as a serpent’s. Twin daggers traced silver arcs through the air, slicing into the dark shape.
Clang!! A sharp metallic ring exploded outward as her severed blonde locks scattered like golden dust.
“You monster…”
She landed on her knees and slashed her skirt open with one dagger. Her smooth thighs gleamed through the torn fabric. Lighter now, she launched herself at the incoming black mass.
“Die!!”
She poured all her mana into the daggers—enough power to cleave steel. But the inky darkness halted abruptly, as if seized mid-air.
No way! Did it predict my attack trajectory and stop beforehand?
Her daggers, calculated for its speed, sliced futilely through empty space. At the same instant, the suspended shadow unfurled wide, enveloping Mystic River instead.
“Kyaaak!”
Trapped like a beast in a net, she was surrounded by the black mass. Black, viscous slime swiftly coated her, melting her clothes and clinging to her skin. She screamed and rolled on the ground as crushing pressure began compressing her body.
“Wh-what… the hell?”
The black stuff had already coated her like a full-body latex suit. As she tried to scream, something slithered into her mouth, gagging her.
“Mmph… mmph mmph!”
Unable even to scream, terror flooded her eyes. She couldn’t move a finger. The blackness coated every finger, every strand of hair, binding her tight.
“Mmph… mmph!!”
Her chest heaved with ragged breaths, the black suit molding perfectly to outline her feminine curves.
“Grrrmmph! Kk! Mmph!!”
Then something invaded her anus and pussy. Her holes yielded helplessly. No matter how she clenched, she couldn’t stop it. Even as she tried to expel it, the intruder seized control of her insides.
Spluuuurt… Something inhuman flooded her orifices, gushing deep.
Not just my ass and pussy… my ears, nostrils… navel… nooo…
The black slime sealed her mouth and nose, seeping into every pore. Her body writhed on the floor, fully encased in the suit. Her slender ankles and long legs trembled powerlessly.

Please… just kill me cleanly. Mystic River begged the monster inwardly.
That was when it happened.
Unable to move, Mystic River screamed back in her mind.
Mystic… Mystic River, of Nova Catholic. I’m an assassin for Nova Catholic…
Nova Catholic is the sect that follows the prophecies of Hosea. We oppose the evil horde worshiping Baal…
Instantly, her body convulsed violently. The lumpy mass inside her pussy had swelled, filling her womb walls.
No…
Her lower belly bloated, like she was nine months pregnant. Her skin stretched taut, flesh straining to burst, accompanied by a bizarre pleasure.
P-ple… please… just kill me cleanly…
Mystic River began reciting the Lord’s Prayer. But the words dissolved in her mind, overwritten by ecstasy.
Is this what pregnancy feels like…
Her belly grew heavy and dull. Yet the vaginal walls linked to her womb writhed with endless foreign sensations—like being ravaged by dozens of cocks at once.

Yes… we of Nova Catholic… serve the Lord… my pussy’s so tight it tingles and feels so good… my pussy’s rubbing raw…
Her mind crumbled under the pleasure, her sharp intellect clouding. Terror gripped her as she realized something else was overtaking her.
Mystic River jolted in shock at the monster’s regretful tone. It had just tried devouring her soul to hijack her body.
P-ple…ase… spare my soul. Even if my body falls… my soul must ascend to heaven…
Mystic River wanted to scream. Had she ever imagined her soul slain, her body puppeted by another?
Please… I’ll do anything… just let me die in peace.
Kyaaak!!! No… spare my soul… please!
As the voice echoed, her body began moving slowly—against her will.
No… nooo…
She tried forcing her rising body back down. But defying it snapped bone with a sickening crack!!
Crunchhh!!
The black mass—the monster—had become a latex suit, puppeteering her body at will. Tears streamed down Mystic River’s face. This terror was new to her. She recited the Lord’s Prayer frantically in her mind.
Has Baal appeared? The Demon King… embodiment of evil… kyaak!!
Unable to endure the pain, she went limp. Slowly, her collapsed body rose. It began moving—not by her will, but forced by the coating slime suit. She squatted and stood, then toddled like a baby learning to walk.
Until now, I’d only used Shan to fly or lurk in shadows for scouting. Actively parasitizing like this was a fresh thrill.
Clinging to her body like clothing, forcing it to move. Controlling her flesh with Shan was far more vivid and stimulating than imagined. Sensations from the black slime armor enveloping her flowed straight into my consciousness.
Especially her ample breasts, softly shifting with each breath—their springy texture transmitted perfectly through Shan’s surface. Even her nipples hardening against Shan’s flesh felt real. As terror accelerated her heartbeat, her tits bounced wildly, like I was kneading them myself.
Aaah… please… She begged in her mind, but her body reacted oppositely. Each tentacle prod at her womb entrance spasmed her whole frame, the vibrations relaying to me via Shan—like I was caressing her most sensitive spots myself.
Her lower body was even more intriguing. As Shan’s tentacles plunged into her pussy and ass, her inner walls clenched, the tightness relaying perfectly. I could map every wrinkle of her vaginal walls, visualize her womb’s shape—like a live anatomy chart unfolding before me.
When fear stiffened her, her sphincters gripped harder, fooling me into thinking my cock was buried inside. I shoved the tentacle deeper into her pussy; her walls convulsed, squeezing fiercely. The anal one thickened, stuffing her rectum full.
Ugh… nooo…
She moaned inwardly, but her body grew hypersensitive. Stimulating her G-spot and prostate simultaneously drew hot pussy juice from her depths. The sticky texture and musky scent teased my mind through Shan’s liquid armor.
The most perverse was her mouth. Shan’s tentacle filled it, letting me feel her tongue and palate’s softness directly. Her unconscious tongue flicks sent warm, wet sensations my way.
“Mmm… mmph mmph…”
Each stifled moan drove the tentacle deeper, prodding her throat. Her saliva mixing with Shan’s slime, dribbling from her lips—it all felt vivid. Her swallows contracted her throat around it, like she was sucking my dick.
Her body heat, moisture, slippery slime… everything was hyper-real. As she sobbed and writhed, her internals squirmed, drawing me into secret ecstasy.
So this is how Shan fully dominates a woman’s body. I marveled inwardly. Every muscle twitch, joint flex felt tangible as I moved her. Her ass swaying with steps, breasts jiggling with arm swings, abdomen rising with breaths—all under my command.
The tentacle in her pussy let me sense her womb, tracking her cycle and arousal. Despite peak terror, she felt unnatural excitement too. Shan clung skin-tight, tasting her sweat’s saltiness. Her scent and pheromones analyzed via Shan’s sensors revealed her precise horniness—pussy juice volume, viscosity, sweet-fishy tang, all crystal clear.
G-spot stimulation spasmed her reflexively; I grew more aroused. No matter her resistance, her body responded honestly to pleasure—dopamine and oxytocin surging. Tentacle caresses on her clit made her hips buck unconsciously. She was addicting to it, body trembling at anal prostate prods. Every reaction felt like we’d merged.
“Hey. Cut it out. Thinking of Shan teasing Jiwon like this sours my mood a bit. And what’s with the pregnant belly?”
I said to myself (Shan). Bizarre, illogical… but it was me talking to me (Shan). I’d arrived late, donning the ‘Breathing’ white mask. Before me stood the sexy blonde in black tights, evoking my first glimpse of Jiwon.
Wide hips, long thighs. Yankee-style legs plus heels elevated her slenderness to another level. But her lower belly bulged like pregnancy—filled with Shan’s slimy mass, I knew.
The full-body suit like black tights covered even mouth and nose. Her sharp nose and vacant eyes stared at me. Inside the mask, slime ravaged her esophagus. Every pore was being violated right now.
“Ugh… motion sickness.”
Two ‘me’s in one space—‘White Mask Demon King’ and ‘Shan-wearing-woman’—both me, caused VR-like nausea from overlapping senses. I temporarily disconnected from the body-controlling Shan.
The blonde beauty moved slowly, bowing at the waist to me.
“I see the King.”
Shan’s voice, after so long.