Seven Sins System Chapter 518. Hungry Succubus I

Seven Sins System Chapter 518. Hungry Succubus I

I let the moment hang for a beat before stepping in, my voice cutting through the silence. “Okay, enough chit-chat,” I said, my tone laced with impatience. “You both already agreed earlier. Just take my hand, alright? No more buts. And let’s be clear—I’m not giving away my blood for charity.”

Katrina’s eyes snapped to mine, and I could see the spark of indignation flare briefly before fading, swallowed by her curiosity and the lure of my power. She hesitated for a long moment, her hand twitching at her side as she wrestled with the decision. Finally, she exhaled sharply, her shoulders dropping as she reached out and took my hand.

My smirk widened, satisfaction flooding through me as her cool fingers clasped mine. “Very good,” I said, my voice low and almost teasing. “Now, let’s make it official.”

I tightened my grip on her hand, letting the demonic energy that simmered just beneath my skin rise to the surface.

“Lust Contract,” I murmured, my voice resonating with power.

The air in the room grew heavy, charged with a dark, electric tension as my aura began to spread. A faint crimson glow flickered at the edges of my vision, the telltale sign of my skills activating.

[Lust Contract initiated…]

[Lust Contract is in progress…]

The familiar sensation of magic unfolded, spreading out like tendrils to weave around Katrina. The energy shifted, tangible and thick, as if the room itself was holding its breath.

Katrina gasped, her body stiffening as the demonic aura enveloped her, wrapping around her like an unseen force. Her eyes widened, her lips parting as she struggled to process the overwhelming sensations flooding her. The system’s notification followed.

[Installing the power of lust in Katrina Hazemoon 21%...]

I watched her intently, my grip firm but not overbearing, my smirk never wavering. The crimson glow of the contract swirled around her, licking at her skin like flames, though it left no mark. She trembled under its weight, her breathing shallow and uneven, but she didn’t pull away. If anything, her grip on my hand tightened, as though anchoring herself to me.

“You feel that, don’t you?” I asked, my voice low and steady. “That’s power. That’s the bond forming between us. It’s not just about obedience—it’s about unlocking what’s been hidden inside you all along.”

Katrina didn’t respond, but the way her eyes met mine—half defiant, half awed—spoke volumes. She was feeling it, even if she didn’t want to admit it yet.

Penelope, meanwhile, stood frozen, her gaze darting between me, her sister, and the swirling demonic energy. Her face was a mix of apprehension and undeniable curiosity, her body leaning forward slightly as though drawn in despite herself.

“Katrina,” Penelope whispered, her voice shaky. “Are you… okay?”

Katrina swallowed hard, her voice barely above a whisper as she replied, “It’s… it’s intense.” She glanced at her sister, her expression equal parts shock and wonder. “But… it’s not bad. It’s…”

“Addictive,” I finished for her, my smirk widening. “It’s a taste of what’s to come. And you’ve only just begun.”

The system notification echoed in my mind.

[100%… ]

[Lust Contract has been successfully completed!]

[Congratulations! Now, Katrina Hazemoon has become your succubus!]

[Type: Mid Succubus]

[*Obey -Every orgasm will increase her desire to serve her master better.]

The demonic energy swirled one last time. The glow surrounding Katrina flared brightly, then dimmed, leaving her standing in the midst of its lingering warmth. Her breaths came fast and shallow, her wide eyes locking onto mine, half terrified and half awed.

I wasted no time. I pulled her into my arms, holding her firmly as I looked into her trembling gaze. “This next part might hurt,” I warned her, my voice calm but firm. “But it will only last for a moment.”

Before she could reply, the transformation began.

Katrina gasped sharply, her body stiffening as the demonic energy surged through her. A raw, primal scream tore from her lips as the force of the change overwhelmed her. She gripped me desperately, her nails digging into my back as though clinging to me was the only thing keeping her grounded. Her head buried into my chest, her muffled cries vibrating against me as the pain of the transformation wracked her body.

I stroked her back lightly, keeping her pressed against me as her mortal essence gave way to something darker, something more powerful. “Hold on,” I murmured, my voice low and steady, meant only for her. “It’ll be gone in seconds. Be a good girl. Just a little longer.”

Her body shuddered violently, her knees giving out, but I held her firmly, keeping her upright as the last of the mortal energy within her was stripped away.

Her cries softened into whimpers, and I could feel the tension begin to ease from her frame as the pain subsided. Slowly, the transformation was completed.

When the agony finally ebbed, Katrina went limp in my arms, her breathing heavy and ragged. Her fingers loosened their grip on my back, trembling as they fell to her sides. She leaned against me, her face pressed to my chest, her voice barely a whisper as she spoke.

“Dr. Allen…” she murmured, her tone soft, almost reverent, carrying an intimacy that hadn’t been there before.

I leaned down slightly, my smirk softening into something more comforting. “That’s right,” I said quietly, tilting her chin up so I could meet her gaze. “You’re mine now.”

Her eyes shimmered with a faint crimson glow. Her features were sharper, more refined, her beauty enhanced by the demonic essence coursing through her veins. Her body had grown more lithe, more seductive. She was no longer a mortal—she was my succubus, her very existence tied to me.

She blinked up at me, confusion and awe warring in her expression. “I… feel different,” she whispered, her voice shaky. “Stronger. But also…”

"Hungry," I finished for her, my voice low, a knowing smile tugging at my lips.