4th

Shirou managed to swim back to the surface, feeling a strange mix of exhaustion and exhilaration. He looked around, noticing that the beach was untouched, as if the tsunami had never occurred.

Even if the rules of singularity prevented him from getting tired, He still felt drained mentally.

Still as he stepped onto the shore, Shirou felt an unparalleled sense of accomplishment after his conquest of beast back to back.

Before he could enjoy the moment, an unfamiliar figure emerged from the horizon, the silhouette of a person against the backdrop of the setting sun. As the figure grew closer, Shirou's heart skipped a beat. It was a young woman, her hair long white hair fluttering in the breeze.

She was wearing just a white shirt, almost transparent due to wetness, revealing a pair of breasts that seemed to have been sculpted by the hands of the gods themselves. Her skin, pale and flawless, gleamed with the remnants of the sea.

Her eyes, a royal purple, two fulff fox(?) ears poking out from her hair, met his with a spark of curiosity. Her tail, long and fluffy, swished back and forth behind her like a serpent tasting the air.

'Who?'

Shirou's mind raced, trying to piece together the puzzle of who this newcomer could be. He had never encountered a someone quite like her, and the sheer beauty of her form was almost overwhelming.

"Fou? Is that you?" Shirou called out, his voice a mix of surprise and confusion. The woman's purple eyes narrowed slightly, and she tilted her head to the side, studying him with an air of curiosity.

"Do you not recognize me, Shirou," the woman's voice was a melodious purr that seemed to resonate with the very essence of the beach. "I suppose I should introduce myself."

"I'm Cath Palug, The Primate **** and former Beast of Comparison," she introduced herself with a gentle smile that seemed to warm the very air around them. "But you can call me 'Fou' if you wish. It's a name most humans I've interacted with use anyway."

Shirou stared at her, his eyes traveling over her form. He knew of Cath Palug, of course.

"How did you turn into a woman?" Shirou questioned, his voice filled with astonishment.

Fou's smile grew playful, "I feed on the emotion of comparison, on the desire to be better, to be superior," she explained, her tail swishing behind her with every word. "But every women around around you feel something far more primal, they feel envy when others taste your seed, they feel envy of others that are being loved by you. And so, I have adapted, to better understand and indulge in this newfound craving."

Shirou blinked, trying to process the information. "What do you want from me, Fou?" he asked, warily.

Her grin grew wider, and she took a step closer, "What do you think, Shirou?" Her voice was a siren's call, and he felt his body respond, his heart racing in his chest.

"I am still a virgin, you know," she whispered into his ear, her hot breath sending a shiver down his spine. "I've never felt the warmth of a man inside me."

Her words hung in the air like a challenge, and Shirou felt his body respond instinctively.

With a predatory glint in his eyes, he stepped closer to Fou, his own desires stirring like a tempest within him.

Shirou reached out, cupping her cheek gently, and tilted her face up towards his. He felt the softness of her skin beneath his touch, and it was like touching a piece of the purest silk. Her pupils dilated, and she leaned into his touch, her breath hitching with anticipation.

Their lips met, and the world around them seemed to pause.

Fou's mouth was warm and inviting, her lips parting slightly to allow his tongue to explore.

He deepened the kiss, his tongue delving into the sweet cavern of her mouth. Fou's response was eager, her own tongue dancing with his in a silent promise of passion unbridled. Her arms wrapped around his neck, pulling him closer, her body pressing against his in a silent plea for more.

Shirou's hand trailed down from her cheek, tracing the curve of her neck to her collarbone, where he felt the rapid throb of her pulse. Her skin was like the cool sand of the beach, yet it burned with an inner fire that called to him.

He broke the kiss, and with a gentle tug, he tore her shirt down, exposing her breasts to the fading light of the day. They were perfect, a blend of softness and firmness that made his mouth water.

Shirou took one of her nipples into his mouth, suckling softly at first before increasing the pressure. Fou moaned as pleasure shot through her, her body arching towards him. He could feel her heart racing, her chest heaving with every breath she took.

Her tail swished back and forth, her eyes fluttering closed as she lost herself in the sensation.

Shirou's hands roamed further, reaching around her back, and with a gentle squeeze, he felt the fluff of her tail brush against his palm. It was surprisingly soft, like the finest fur, and he couldn't resist giving it a gentle tug.

"Aaaaugg," Fou's eyes snapped open, and she looked at him with a mix of shock and arousal. She took a step back, and her tail coiled around his arm, drawing him closer once more.

"You're eager," she murmured, a hint of playfulness in her voice. "But remember, I'm still a Beast, Shirou. And I need to be tamed properly."

Without a moment's hesitation, she jumped onto him, wrapping her legs around his waist and her arms around his neck. Her breasts bounced with the motion, teasing him, and her eyes gleamed with excitement. The fox-like ears on her head twitched as she bit her lower lip, looking down at him with a seductive gaze.

Shirou's arms instinctively circled her waist, holding her up with surprising ease despite her voluptuous frame. Her tail coiled around one of his legs, anchoring them together as if they were two lost souls bound by fate.

Her legs locked around his hips, and he felt her heat pressing against him, demanding more. Without another word, he thrust into her, burying himself to the hilt.

Fou gasped, her eyes going wide with surprise and pleasure as he filled her completely.

Her ankles locking behind his back, and she held on tight as Shirou began to move. Each thrust sent her body bouncing slightly, her breasts jiggling with the motion, and her fox ears twitched with every gasp she made. Her nails dug into his shoulders, leaving little white marks on his skin as she held on for dear life. The waves of pleasure crashed over her like the tides, each one stronger than the last.

The sand felt cool under his feet, a stark contrast to the heat that emanated from their joined bodies.

Shirou's grip tightened on Fou's hips as he increased his tempo, driving into her with a primal need that seemed to come from the very core of his being. Each time he pulled back, the tip of his cock brushed against her clit, sending a jolt of pleasure through her that made her whimper and dig her nails deeper into his skin.

"Slower, I can't... I can't take it," Fou panted, her nails raking down Shirou's back as the intensity of their union grew. Her voice was a sweet symphony of pleasure, a melody that made his blood boil.

He didn't, of course, slow down. Instead, Shirou picked up the pace, his eyes burning with a fierce need to claim her fully. The sound of their bodies slapping together was punctuated by the gentle lapping of the waves on the shore, a rhythm that seemed to set the very beat of the world around them.

Fou's moans grew louder, her breathing more ragged as she clung to him, her body writhing in pleasure. Her inner walls tightened around him, her muscles contracting as she approached the peak of climax.

Shirou's own arousal grew, his movements becoming more urgent, each thrust a declaration of his desire to conquer and claim her. He could feel the tension building within her, the way her body was begging for release.

Her nails dug deeper into his skin, leaving trails of red that stood out against his flesh.

"Aaah, Shirou... Yes... Yes..." Her cries grew more frantic, her body trembling with the **** of her orgasm. Her walls spasmed around him, gripping him tightly, trying to pull him in deeper, as if trying to consume him entirely.

Shirou felt his own climax approaching, the heat building within him like a volcano ready to erupt. He thrust into her one final time, burying himself as deep as he could go.

With a roar of triumph, he released himself within her, filling her with his hot seed.

Their bodies were a blur of motion, lost in the throes of passion, as they rode the waves of their shared pleasure. Fou's eyes rolled back in her head, and her mouth fell open in a silent scream of ecstasy.

He lowered the limp body of the beast into the sand, her legs still trembling slightly as she lay on her stomach, panting heavily. He stepped back to admire his work, his cock still hard and gleaming with their combined fluids.

He bent down, his hands drifted towards the fluffy tail that was swaying gently in the breeze. As he touched it, she shivered with pleasure, arching her back.

"Mine," Shirou murmured, his voice low and possessive. "You're all mine now, Fou."

Fou looked up at him with a lazy smile, her eyes glazed over with pleasure. "Always," she whispered, her tail swishing lethargically.

Shirou took her at her word. He grabbed her by the hips and made her stand on all four, her lush backside sticking up in the air, presenting herself to him like a beast in heat. Fou's eyes sparkled with excitement as she watched him approach, her tail wagging eagerly.

With a feral growl, he parted her cheeks with one hand, the other gripping her tail, and thrust back into her. Fou's eyes widened as she felt the new angle, the sensation of his cock penetrating her from behind. Her legs wobbled slightly, but she remained on all fours, her body now fully exposed to his primal urges.

Her moans grew more animalistic with each thrust, her body moving in sync with the rhythm of his hips.

The sand shifted under their weight, creating small dunes that grew with each powerful collision. The scent of sex and the sea mixed in the air, a heady perfume that seemed to intoxicate them both.

Shirou's grip tightened on Fou's tail, using it almost like a leash as he pumped into her from behind. Each thrust was met with a moan from the Beast, her body responding to his dominance with a feral need of its own.

Fou's eyes rolled back with pleasure, her pupils dilated as she lost herself in the feeling of his cock claiming her. Her own moans grew louder, echoing across the deserted beach like the howl of a creature in heat.

Shirou felt the pressure within him building once more, his hips moving in a furious rhythm that matched the crashing of the waves. The sand was a blur beneath them, their movements stirring up clouds of it as they continued their carnally driven dance.

Fou's tail tightened around his arm cutting off the blood flow, her body moving back to meet his thrusts, eager for more. She was a creature of instinct now, her human facade slipping away to reveal the primal beast beneath.

Her eyes burned with a fiery passion that seemed to scorch the very air around them, and her teeth were bared in a silent snarl that was both terrifying and incredibly arousing. Shirou felt like a beast in his own right, claiming his territory and leaving his mark on the world.

Fou's body convulsed with pleasure, her tail releasing its **** grip on his arm. Her moan was a thing of beauty, a houl of ecstasy resonated across the singularity as she for the time in her existence, felt what it was like to truly be taken by a man. Her walls tightened around him once more, the friction was exquisite and Shirou knew he was close to the edge.

He felt the warmth of her climax wash over him, her muscles contracting and releasing, her juices mixing with his own cum from previous release, creating a slick symphony of lust.

Shirou's strokes grew more forceful, his breaths ragged as he chased his second release of his own.

He leaned over her, his hands moving from her hips to her breasts, kneading and pinching the soft flesh. The sensation of her tightening around him was almost too much to bear, and he knew he couldn't last much longer.

With one final roar, he reached his peak, his hips bucking as he emptied himself into her once more. The **** of his orgasm sent waves of pleasure through her body, making her quiver and shake with the intensity of it.

Shirou withdrew slowly, his cock glistening with a mix of their juices. Fou remained on all fours, her breathing heavy and erratic. He stepped back, admiring the sight of her sprawled before him, her body a testament to the power of their union.

"Clean me," Shirou ordered, his voice thick with satisfaction. Fou's eyes snapped to attention, the haze of pleasure clearing slightly. With a graceful movement that belied her recent exhaustion, she pushed herself up in sitting position, her legs still splayed wide in the sand. Her eyes never leaving his, she leaned forward and took his still semi-hard cock in her mouth.

Her tongue swirled around the head, lapping up the remnants of their mating with a hunger that was almost comical. She seemed to savor the taste, her cheeks hollowing with each suck, her eyes closed in concentration. Shirou watched her, his hand stroked her soft ear gently, his own body still trembling from the intensity of their encounter.

Slowly, tongue caressing the tender flesh of his cock, Fou licked him clean, savoring the saltiness of their combined essence. Her movements were deliberate and sensual, a silent declaration of her submission to him. Shirou felt his arousal stir again at the sight, his hand tangling in her silky hair as he guided her movements.

As she worked her magic, Shirou grew hard once again, his manhood standing proud as if eager to conquer new depths within her. She took him in deeper, her eyes looking up at him with a mix of love and adoration. Her cheeks hollowed with each bob, the sound of her slurps mixing with the serene whispers of the sea.

"Good girl," Shirou praised as he felt his arousal swell once more, his cock growing rigid in her mouth. Fou's eyes gleamed with a mix of pride and need, her tongue swirling around his shaft with an eagerness that made his blood race.

Fou's tail swished with excitement, leaving trails in the sand as she serviced him.

A/N Why the f, there are no decent pics of female Fou on the net.