The morning sun bled through the heavy silken drapes, casting a molten glow over a chaotic landscape of tangled limbs and discarded finery. The Jade Phoenix Pavilion, once a cold bastion of matriarchal dignity, had been transformed into a humid sanctuary of rhythmic, wet heat.

Every thrust Shen Yu delivered felt like a hammer blow against the laws of reality. With the Stage of Perfection as his foundation, his stamina had transcended the mortal coil.

His movements weren’t just physical, they were fueled by a silver Qi that hummed with the stolen echoes of the Lightning Tribulation, turning his body into an engine of relentless endurance.

Slap. Squelch. Slap.

Yilan’s back arched into a bow, her neck corded with tension as she let out a shattered, high-pitched cry that echoed off the jade walls.

As he drove into her, Shen Yu’s focus shifted to her heavy, pendulous breasts. He coated his palms in Crimson Nectar, the potent, pheromone-laced liquid produced by his blood, and groped her with a possessive, bruising grip. As his fingers dug into the soft tissue, a startled, guttural moan escaped Yilan’s lips.

To his shock, a thick, pearl-white liquid began to bead and then flow freely from her nipples, coating his fingers.

"Yilan... you’re lactating?" he rasped, his voice thick with a mix of shock and dark fascination. "How?"

"I... I don’t know," she gasped, her head thrashing against the silk pillows, her eyes rolling back in a daze of pleasure.

"It is a quirk of my hbody... they produce when the stimulation is too absolute. It’s as if my body is overflowing..."

"Then why didn’t they leak last night?"

"There is no cycle to it," she whimpered, her body shuddering as he bottomed out. "It only happens when the pleasure reaches a point I cannot contain. Please... Yu’er... drink."

Shen Yu didn’t need to be told twice. He leaned down, his mouth catching the sweet, warm flow directly from the source. The taste was divine, infused with her pure, concentrated Yin energy.

He used his other nectar-slicked hand to knead her second breast, which promptly began to spray in sympathy. He pressed her nipples together, drinking greedily as his hands milked her lush curves with a rhythmic, demanding pressure.

He didn’t slow the assault on her lower half. He hooked her right leg over his broad shoulder, shifting the angle to drive even deeper into her.

The motion sent her milk spraying across the silk sheets and over his own sweat-slicked chest, creating a slick, aromatic slurry of fluids. The sight of her, leaking, gasping, and utterly conquered, ignited a primal fire in his perfected core.

Slap. Squelch. Slap.

He began to rhythmically slap her heavy breasts with his open palms as he fucked her, the sharp crack of the impact adding a sting of pain that sent her into a state of sensory overload.

Yilan’s internal muscles clamped onto his length like a vice, her body convulsing in a violent, multi-layered orgasm. Shen Yu felt the squeeze and let out a guttural, animalistic roar, releasing a massive volume of his Yang essence deep within her womb.

He didn’t let the moment end there. He pulled his glistening length out and immediately shoved it into her waiting mouth.

Without a second’s hesitation, she devotedly milked him with her tongue, swallowing every drop of the divine nectar, her eyes locked onto his with absolute, soul-deep worship.

For the rest of the day, time lost all meaning. They became mindless beasts, driven by the Primordial Yin-Yang Technique. Shen Yu channeled every surge of their union directly into her shattered Dantian, using the act of love to perform a miraculous surgery.

As the sun dipped toward the horizon, a brilliant, golden shockwave erupted from Yilan’s body. The final fracture in her Golden Core snapped shut with a crystalline ring.

She felt a surge of ancient vigor return to her limbs, her old injuries vanishing as her cultivation skyrocketed, breaking through bottleneck after bottleneck until it settled firmly at the 5th Stage of the Golden Core Realm.

With her beauty fully restored and her power reborn, Yilan looked at Shen Yu with a predatory, loving smile. She climbed atop him, her lush ass grinding against his revitalized length while she shoved her leaking, heavy breasts back into his mouth.

The sounds of their carnal celebration echoed through the pavilion until the stars themselves grew dim, a testament to a stamina that had truly transcended the mortal coil.

As Shen Yu approached his final release, his mind remained sharp despite the haze of pleasure.

He knew his ability, Primordial Genesis Seed, had reached its limit for this realm, its miraculous power exhausted. But he had another way. He decided to employ the Primal Mark of Belonging, the forbidden branding technique he had gotten from the random lottery ticket.

He pulled Yilan into a searing kiss, but her eyes were glazed, lost in a kaleidoscope of ecstasy.

To anchor her, he nipped sharply at her lower lip, the metallic tang of blood snapping her back to reality. When her pupils finally constricted and focused on him, he spoke in a low, gravelly command.

"Yilan, listen to me. I am going to mark you. This technique will bind us, by which we will be able to always feel the pulse of the other’s location, and it will serve as a permanent reminder of exactly who you belong to."

"So do you want to be marked?"

A wild, primal smile broke across her flushed face. She looked at him with a gaze that was equal parts devotion and hunger. "Yes... mark me, Yu’er. Carve your name into my soul. Make me yours forever."

"Where do you want it?"

Without a moment’s hesitation, she arched her back, presenting her lush, milk-stained chest. "Since you love them so much... put it here. Between my breasts. Let it be the first thing you see every time you take me."

Shen Yu nodded, his golden eyes flaring. He accelerated his pace, his thrusts becoming a rhythmic thunder that shook the bedframe. As he reached the precipice, he channeled his silver, perfected Qi into his seed.

He delivered one final, soul-shattering thrust, filling her to the brim, before abruptly pulling out. With a low roar of triumph, he released the remaining essence directly onto the valley between her heavy, quivering breasts.

The technique activated instantly. The white essence didn’t run; it began to glow with a fierce, obsidian light, burning into her skin as if it were molten ink.

Yilan let out a sharp, breathless gasp as the Primal Mark formed. It was a sprawling, intricate masterpiece in blood-red and void-black. At its center, nestled perfectly in the cleavage of her breasts, was a stylized Lotus of Desire, its petals unfurling upward and outward.

The "roots" of the flower curled possessively around the inner curves of both breasts like protective, barbed vines, while the central stamen was shaped like a vertical slit, a "Third Eye" that seemed to pulse in sync with Shen Yu’s own heartbeat.

The mark glowed with a dull, rhythmic heat, sinking deep into her dermis until it looked like a natural part of her flesh.

"It’s beautiful," Yilan whispered, her hand trembling as she traced the red ink that now claimed her beauty.

"It’s a promise," Shen Yu replied, leaning down to kiss the center of the mark. "Now, no matter where you go in this world, the Heavens will know you are the wife of Shen Yu."