She's a woman who just received a brain implant that makes her very happy...and horny

Yumi sat nervously in the sterile white room of the neural enhancement clinic, adjusting her thick-framed glasses repeatedly. Her slender fingers trembled slightly, tucked beneath the loose sleeves of her oversized grey sweatshirt. Her long brown hair cascaded messily around her shoulders, a comforting shield against the stark clinical atmosphere. She took a deep breath, feeling her heart pulse with anticipation and uncertainty.

For years, a persistent depression had dulled the colors of her life, turning once joyful days into monotonous shades of grey. Today, however, was supposed to mark a turning point. The delicate microchip implanted at the base of her brainstem had been promised as the ultimate solution—a neurological breakthrough capable of lifting the heavy veil from her emotions permanently.

As she rose slowly from the reclining medical chair, Yumi felt something extraordinary—a warmth spreading through her chest, a bubbling sensation she hadn’t experienced in years. Joy. Pure, unfiltered happiness began to wash over her, an effervescent flood of emotion that almost brought tears to her eyes.

Yet, as the initial waves of bliss subsided, Yumi felt another sensation rising beneath her newfound joy. An unfamiliar, simmering heat, coiling deep within her core. Her cheeks flushed pink, heart rate quickening inexplicably. With each step toward the clinic's exit, the warmth intensified, becoming an undeniable, insistent desire that pulsed beneath her skin—a craving she'd never experienced before: the overwhelming need for hard cock.

As Yumi stepped out into the bright sunlight, she wondered briefly if this side effect was intentional. But the thought was quickly overshadowed by a craving that now dominated her every thought—urgent, intense, and thrillingly irresistible.

Once home, Yumi hurried into her cozy apartment, heart racing as she quickly shut the door behind her. She could barely focus on anything but the insistent craving growing stronger within her. Unable to resist any longer, she grabbed her phone and dialed David, her longtime friend who had always been there when she needed him.

"Hey, Yumi," David answered casually.

"David, I need you to come over right away," she said urgently, her voice trembling slightly.

There was a short pause, then David replied, concern evident in his tone, "Is everything okay?"

"Just come. Please," Yumi breathed into the phone, her heart pounding with a mixture of anticipation and nervous excitement.

"I'll be right there," David said without hesitation, sensing the urgency in her voice. Yumi hung up, exhaling deeply as she sank onto her couch, every nerve in her body alive with anticipation for David's arrival.

A short time later, David knocked softly at Yumi's apartment door, his mind racing with curiosity and concern. Yumi quickly opened it, cheeks flushed, her eyes wide with urgency and excitement. Without a word, she grasped his hand, pulling him inside and swiftly closing the door behind them.

"Yumi," David began hesitantly, his eyes searching hers for answers, "what's going on?"

"David," Yumi whispered, her voice shaking slightly as she looked up at him, eyes bright with newfound passion. "The procedure today—it did something to me. I can't explain it. But I need you. Right now."

Surprised but undeniably intrigued, David gently cupped her face, noting the warmth radiating from her flushed skin. "Are you sure about this?" he asked softly, his thumb lightly brushing against her trembling lower lip.

"I've never been more sure," she responded breathlessly, feeling an electric shiver ripple down her spine at his touch.

Slowly, deliberately, David guided Yumi toward her couch, their eyes locked in an intense gaze. Yumi knelt down willingly, heart pounding wildly in her chest as she looked up at him, surrendering to the overwhelming craving that had taken control.

David carefully undid his belt and pants, his breathing growing deeper as he watched anticipation flicker in Yumi's gaze. He revealed his cock, already hardening under her hungry stare. Yumi's heart quickened, the unfamiliar yet exhilarating desire consuming her completely.

Gently grasping the back of Yumi's head, David guided himself toward her lips. Yumi eagerly parted them, taking him deeply, moaning softly as his cock filled her mouth.

Yumi's tongue danced around the head of David's cock, her lips forming a tight seal as she drew him in with ravenous intensity. The first drops of pre-cum ignited a burst of flavor on her taste buds, sending shockwaves of desire coursing through her body. Her fingers grasped David's thighs, her nails digging gently into his skin as he let out a low, husky groan. His hips jerked forward, instinct taking over, and Yumi's mouth adjusted to the new depth, her nose brushing against the coarse hair at the base of his shaft. The sensation brought tears to her eyes, but she was driven by an insatiable hunger, her mouth working in perfect sync with David's ragged breathing.

Finally, David's control snapped, his fingers digging deep into Yumi's scalp as he thrust forward with reckless abandon. Her lips were stretched taut, her throat constricting around him in a series of violent spasms.

GACK GACK GACK GACK GACK

Tears streamed down her face, her cheeks aflame, as her body struggled to accommodate the intense invasion. Yet, despite the discomfort, the implant triggered a cascade of euphoric sensations that coursed through her veins, transforming each of David's thrusts into a thrill of pleasure. Her nails scored David's thighs, leaving behind thin trails of blood as her body arched upward, driven by a primal urge to take him deeper. Saliva dripped from her mouth, mingling with tears as she surrendered to the all-consuming desire that had taken hold of her. Her vision began to blur, dark spots dancing before her eyes as David's labored grunts grew louder, his body straining toward release.

With a guttural roar, David's hips stuttered against Yumi's face as thick ropes of semen pulsed into her convulsing throat. She swallowed reflexively as the neural implant translated her discomfort into overwhelming pleasure. The bitter-salty flood triggered a full-body shudder, her arousal reaching a fever pitch as David's fingers kept her skull locked in place during his final, shuddering thrusts. As he released his grip, Yumi's head fell back, her chest heaving with ragged gasps.

Her eyes, cloudy with desire, locked onto David's. The neural implant hummed in her mind, its gentle thrum amplifying the aftershocks of pleasure. "I've fantasized about that for a long time, Yumi," David rasped, his voice still rough from exertion. The words sent a jolt of electricity through her body. Her thighs clenched together as a new wave of desire washed over her.

"More," she pleaded, her voice cracking with need. Without hesitation, David's hands closed around her waist, and with a swift motion, he flipped her onto the couch. Her legs parted instinctively, and the neural implant sent a surge of expectation through her senses as he tore aside the fragile barrier that remained between them.

His cock plunged into her with a **** that made her cry out, the neural implant instantly transforming the sharp sting into a torrent of sensation that left her breathless. Yumi's back arched off the cushions as he set a frenzied pace, each thrust stretching her walls with a searing tension that the implant expertly wove into a tapestry of ecstasy. The friction was almost unbearable, yet she felt herself melting into it, her body surrendering to the primal rhythm of David's pounding thrusts. Her voice shattered into a series of wordless, keening wails.

David's hands constricted around Yumi's neck, his fingers sinking into her tender skin as he drove deeper, his climax building with a ferocity that bordered on brutality. David's voice was a low, menacing whisper: "You're mine, Yumi," he snarled. Yumi's eyes flashed with a mix of pain and twisted arousal, her face contorted in a silent scream. Her hands scrabbled at the couch cushions, her body straining to meet each savage thrust, each impact propelling her toward a shattering climax.

When Yumi orgasmed moments later, her cry was a primal, anguished sound, ripped from her very core as her pussy muscles contracted around David. She felt herself being swept under, the waves of pleasure crashing over her in an unrelenting tide, each one a fresh peak of sensation that threatened to consume her entirely. As the storm raged on, Yumi's world narrowed to a single, piercing point: the all-consuming, soul-shattering bliss that had taken hold of her.