Reborn In A Perverse Monster World! My System Adapts To Everything!

Chapter 149: My System Absorbs Abilities Through...!? [18+]

Namtar looked up at him, Jason could see it: the dark mana oozing from her pores like a visible, shimmering haze of violet and black. His body reacted with a primal, instantaneous intensity. Within seconds, his cock surged, hardening into a thick, throbbing pillar that strained violently against the fabric of his pants. He let out a sharp breath, quickly shifting his stance and adjusting his waistband to hide the massive bulge, but the friction only made the ache worse.

Namtar’s eyes, slit and predatory yet filled with a terrifying level of devotion, didn’t miss a thing. A slow, knowing smile spread across her grey lips.

"Your body reacts to my mana," she whispered, her voice a sultry rasp that sent a shiver down Jason’s spine. "It is the call of the Marrow. It recognizes its own, my Lord."

Jason frowned, his voice tight with a mixture of irritation and arousal. "Why? You aren’t the first dark mage I have encountered. Why is my body reacting like this?"

With a fluid, graceful movement, Namtar shifted, lifting her arms to reveal the intricate, glowing runes etched into her grey skin. They weren’t mere tattoos; they were living inscriptions, pulsing in sync with the dark energy she emitted. "These runes were inked using Marrow inscriptions as a catalyst," she explained, her voice dripping with reverence. "My guild does not merely study the dark arts; we worship the Marrow. Our founder was released by the Marrow ten months ago, and he became obsessed. He built our guild upon that obsession, propelling us to the twelfth rank of the dark guilds in record time. Because you are the living embodiment of the Marrow, we do not just respect you... we worship you."

The closer she moved, the more the air seemed to vibrate. The urge inside Jason grew, a hungry, gnawing need that drowned out his logic. He knew the risks—they were in the open, and the Marrow was greedy. If he indulged, the entity would feed on her essence. He wondered briefly if it would kill her, but as he looked at her—the horns curving from her forehead, the massive, heavy breasts straining against her thin, dark clothing—he realized he didn’t care. He had been sexually dormant for over seven months, his two partners pregnant and resting. The pressure had built up into a volatile cocktail of lust and power.

Namtar sensed the crack in his armor. She didn’t rush; she played with him. She stepped into his personal space, the scent of musk and ozone filling his nostrils. She reached out, her grey fingers grazing the front of his pants, tracing the outline of his erection with agonizing slowness.

"Mmm... so hard," she moaned softly, her breath hot against his stomach. "I can feel it pulsing. You are starving, aren’t you, Master?"

She began to stroke him through the cloth, her grip firm yet supple, moving up and down the length of his shaft. Jason let out a low growl, his hands clenching into fists. He tried to resist, tried to tell himself that this was a distraction, but the dark mana was like a drug, slipping into his skin and melting his resolve.

"Stop," he commanded, though the word lacked any real conviction.

Namtar only giggled, a wet, needy sound. She dropped to her knees, her massive tits spilling forward, the nipples dark and erect. She didn’t go for his pants immediately; instead, she began to lick the fabric, her tongue tracing the seam of his fly, tasting the musk of his arousal through the cloth.

"Please... let me serve you," she whimpered, her voice breaking into a moan. "Let me feel the power of the Marrow inside me."

Jason’s control snapped. He didn’t want a gentle encounter; he wanted to dominate. He reached down, his hand snapping around her throat in a vice grip. He hauled her upward, lifting her off the ground until her toes barely touched the dirt. He tightened his grip, cutting off her air, his eyes locking onto hers.

"You would die for me, won’t you?" Jason questioned and he didn’t get his response with words.

Namtar didn’t panic. Instead, her eyes rolled back in ecstasy. A string of thick saliva dripped from the corner of her lips, her chest heaving as she struggled to breathe. She was loving the violence, the sheer display of power. Jason felt a surge of dark satisfaction. This was a demon, a killer, a creature of the void. There was no room for guilt here.

He dropped her abruptly, and she hit the ground with a thud, looking up at him with absolute, pathetic reverence.

"You aren’t worthy to stand in my line of sight," Jason spat, his voice cold and commanding.

"Yes... yes, Master!" she gasped, her voice a ragged whisper.

Without another word, Jason freed his cock, the thick, veiny shaft springing out with a snap. He didn’t give her time to prepare; he grabbed her hair and shoved his cock deep into her mouth. He gripped her throat again, squeezing tight, forcing her to take all of him. He slid in deeper, the head of his cock hitting the back of her throat, making it nearly impossible for her to breathe or swallow.

"Mmph! Gllph!" Namtar’s muffled moans vibrated against his shaft. She didn’t resist; she leaned into it, her tongue wrapping around the head of his cock, swirling and sucking with a desperate hunger. The sound of wet, sloppy suction filled the air, punctuated by the guttural sounds of her struggling for air.

Suddenly, the sound of laughter and distant chatter drifted from the tavern. People were leaving. Jason froze, his instincts screaming. If he were seen like this, it wouldn’t just be a scandal—it would be a chaotic scene. He yanked his cock out of her mouth with a wet pop and dragged her by the arm into a nearby dark alley, the shadows swallowing them whole.

He intended to stop, to regain his composure, but Namtar was faster. The moment they were shielded from view, she spun around, dropping to her hands and knees. She arched her back, pushing her massive, grey ass high into the air, her pussy dripping and open, practically begging for him.

Before Jason could even process the move, she backed onto him. He felt a sudden, searing heat as her pussy clamped around his shaft in one slick, burning slide.

"AAHHH! MASTER!" she screamed, the sound echoing off the alley walls.

Jason gasped, his eyes widening. He had never felt anything like this. She was tighter than any woman he had ever been with, her internal muscles pulsing and gripping him like a living vice. He slammed his hips forward, burying himself to the hilt.

"Fuck!" Jason groaned, his head snapping back.

As he began to pump into her, something strange happened. It wasn’t just physical pleasure. He felt a current—a literal flow of energy—moving from her body into his. With every thrust, the dark mana within Namtar was being sucked out, flowing through his cock and into his bloodstream. It felt like liquid fire, filling him with a rush of euphoria and power.

"Mmmph—YES! Take it! Take everything!" Namtar moaned, her voice muffled as she pressed her face against the brick wall.

Jason’s resistance vanished completely. He began to fuck her with a rhythmic, violent intensity, the wet slap-slap-slap of his balls hitting her ass filling the alley. He wasn’t just fucking her; he was consuming her. He realized with a shock that the Marrow wasn’t just feeding on her life force—it was absorbing her traits. He could feel his senses sharpening, and a new, innate understanding of the runes she carried settling into his mind.

He pulled out of her abruptly, the sound of the separation wet and loud. Namtar collapsed forward, gasping, her body trembling. Jason didn’t let her recover. He grabbed her by the waist and flipped her onto her back, pulling her massive tits together.

He positioned the head of his cock between the deep valley of her breasts. The skin was soft, smelling of sulfur and sweetness. He began to slide in and out of the cleavage, the friction of her heavy tits creating a tight, warm sleeve.

"Oh god... Master... your cock is so big... mmmph!" she moaned, her hands reaching up to squeeze her own breasts, pushing them tighter around him.

Jason groaned, his breath coming in ragged gasps. "You... you’re just a tool for the Marrow," he hissed, though his hips were moving faster, driven by a lust he could no longer control.

"I am... mmm... whatever you want me to be!" she cried out, her voice breaking into a high-pitched moan as he accelerated the pace. The titfuck was intense, the lubrication of her sweat and mana making the slide effortless. He watched his thick shaft disappear and reappear between those massive mounds of grey flesh, the sight driving him toward the edge.

He felt the buildup in his loins, a pressure that felt like a volcano ready to erupt. He shifted her one last time, flipping her over and pinning her against the wall, lifting one of her legs high over his shoulder. He drove back into her pussy with a force that made her scream, a loud, piercing sound that he quickly muffled by slamming his hand over her mouth.

"Mmmph! Mmm-mmmph!" she whimpered, her eyes wide and glazed with pleasure.

Jason didn’t hold back. He hammered into her, each thrust deeper than the last, his body drinking in the last remnants of her available mana. He could feel himself becoming stronger, his muscles denser, his power expanding. The Marrow was evolving, learning how to steal the gifts of those it copulated with.

The climax hit him like a freight train. Jason let out a guttural roar, his body stiffening as he flooded her deep inside. He felt the surge of cum leave him in powerful, hot bursts, and simultaneously, a final, massive wave of dark mana surged into him.

Namtar’s body convulsed, her pussy clamping down on him in a series of violent spasms. She let out a long, muffled moan against his palm, her eyes rolling back as she succumbed to a crushing orgasm.

As Jason slowly pulled out, he felt a sense of profound power. He looked down at Namtar, who lay spent and shivering on the dirty ground of the alley. He wasn’t tired; if anything, he felt more energized than he had in months. He had discovered a new weapon, a new way to grow.

This was very similar to Mae’s milk ability but this one actually granted him the abilities of her.

He looked at the demoness, who was still looking up at him with that same, terrifying devotion. He didn’t feel guilt. He felt hunger. And he knew that this was only the beginning.