"Damn it, Ayaka," Akira groaned softly through gritted teeth. His voice sounded tagged as it echoed in the small tunnel. The footsteps above them was like loud, distant drums that only amplified the illicit thrill.

Her mouth was a scorching vortex around his cock, sucking with an insatiable greed that made his thighs tense and his balls ache with the building pressure.

She didn't let up, her head bobbing faster now, her throat relaxing to take him deeper. The wet, muffled gagging sounds turned him on the more, and her saliva bubbled around his shaft, dripping down in hot streams, soaking his pubic hair and running over his tight, drawn-up scrotum.

"Clear the south quadrant!" They heard above them, but the sound of it only fueled the fire, making every swirl of her tongue feel like lightning. Her cheeks hollowed to create that perfect, relentless suction that milked pre-cum from his slit in steady, salty pulses.

But even as the pleasure grew intense, Akira felt the strange, cold turbulence in his veins remain, refusing to completely disappear.

The system's notifications flickered in his mind: [ESSENCE STABILIZING... SIGNATURE DAMPENING: 70%...]

It wasn't enough; her blowjob, as mind-blowing as it was, couldn't ground the volatile energy completely on its own.

Ayaka seemed to sense it as well. She pulled her mouth off his cock with a wet pop sound, leaving strings of saliva between her full lips and the glistening, throbbing tip. Her breath was hot and quick against his wet skin as she tried to catch her breath.

"Not yet," she murmured, her crimson eyes gleaming with hunger as she straightened up slightly on her knees.

Her catsuit was already unzipped low, and her full, heavy breasts were visible in the dim light. The soft, pale curves rose and fell with her breathing, and her nipples were dark and hard, like ripe berries begging to be plucked.

Akira's cock twitched hard at the sight, pulsing in the cool air, veins bulging along the shaft as blood surged.

She cupped her tits with both hands, squeezing the plush flesh together, the deep cleavage forming a perfect, warm valley. "Let me use these... it'll help draw it out deeper."

She leaned in, enveloping his wet cock between her breasts. The soft, round curves squeezed his thick length like a gentle, velvety clamp. Her skin was hot and smooth against his pulsing length.

Akira made a small hissing sound as he felt the texture and the contrast of her hard nipples grazing his thighs. She started moving, sliding her breasts up and down his length slowly.

The friction felt really good. Her saliva was working as lube, making everything move smoothly. With every upward thrust, the tip of his cock peeked out from her cleavage, red and swollen, dripping more pre-cum that spread over her breastbone.

She squeezed her breasts tighter, the pressure milking him from base to tip, her thumbs circling her own nipples as she worked, pinching them until they hardened even more, a soft moan escaping her lips.

To make it more intense, Ayaka lowered her head. Her tongue darted out to lick the exposed tip each time it came out. She swirled it around the sensitive top, flicking the slit to taste his salty fluid, and her warm breath blew over the wet skin.

"Mmm, do you feel that?" she whispered as she licked, her voice husky with arousal. Her own pussy was pulsing inside her suit, and wetness was seeping onto her thighs.

The boob job was intoxicating… the way her tits jiggled with each pump, the soft flesh molding perfectly around his cock, squeezing and releasing in a rhythm that made his balls churn, the added tease of her tongue sending sparks of pleasure shooting through him.

Pre-cum smeared across her cleavage, making everything messier, slicker, the obscene squelch of skin on skin mixing with the distant shouts above.

But still, the energy lingered, like a stubborn chill in his core.

Ayaka released her breasts with a soft pop as his cock sprang free, harder than ever. "Almost... need to finish it," she breathed, diving back down to take him fully into her mouth again.

This time, she sucked with renewed ferocity, her head bobbing rapidly, throat fucking herself on his length, gagging wetly as she deep-throated him to the hilt. One hand stroked his base in twisting pulls, the other fondled his balls, tugging gently on the sensitive sack, rolling them until they drew up tight.

Akira's hands fisted in her hair, guiding her deeper, his hips bucking involuntarily into the wet heat, the pleasure coiling like a spring in his gut.

The combination: the memory of her tits wrapped around him, now her mouth devouring him, pushed him over the edge. "Ayaka... fuck..." he growled low.

His cock swelled in her throat as the climax hit, hot ropes of cum erupting down her gullet, laced with the final surge of volatile essence.

She swallowed greedily, her throat working around him, milking every last drop, her tongue pressing against the underside to coax out more, until he was spent, shaking against the pipe.

[ESSENCE CLOAK FULLY RESTORED]

[SIGNATURE MASKED]

Ayaka stood up slowly, wiping her swollen, cum-glossed lips with the back of her hand, a satisfied gleam in her eyes.

She looked energized, her skin glowing with a healthy luster, her nipples hard and visible through her shirt from her own arousal. "Better. Now you just look like a normal human."

They waited for the footsteps overhead to fade before moving deeper into the tunnel system. They emerged nearly thirty minutes later, climbing out of a manhole six blocks away in a quiet residential area.

In the distance, the industrial zone was lit up like a stadium. Dozens of searchlights crisscrossed the sky, and the hum of helicopters could be heard in the distance.

"That's the Special Phenomena Investigation Unit," Ayaka said, leaning against a brick wall as she adjusted her clothes. "The government's answer to the supernatural surge."

"How do you know so much about them?" Akira asked, looking at the distant lights.

"I've dealt with something similar before. They're dangerous, Akira. They don't arrest supernatural threats... they contain or eliminate them. They treat demons like a virus and humans with 'gifts' like infected carriers."

"What happens if they catch someone?"

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