Eresh and Ishtar

Shirou Emiya trudged through the dimly lit corridors of Chaldea, the weight of the day's labors etched into every line on his face.

Valentine's Day had always been a whirlwind of activity at the Chaldea, each year one of the servants tries to outdone the chaos of the last.

This year was no exception. As Shirou reached the sanctuary of his quaint room, the door swung open with a gentle creak, revealing a scene that was both tantalizing and utterly bizarre. His eyes widened at the sight that greeted him.

On his bed lay two goddesses, Ishtar and Ereshkigal, both completely bare and smeared with chocolate. The room was filled with the sweet aroma of confectionery that mingled with the faint scent of their divine presence.

Both goddess presented their bare bottoms to Shirou, each one sticky with the dark chocolate that formed a stark contrast against their pale, unblemished skin.

If that wasn't enough. Ereshkigal, the blonde twin had the word "Happy" spelled out on her butt cheek out of chocolate. Ishtar, the black haired goddess had "Valentine" sprawled across her butt.

Shirou's tired eyes blinked rapidly. To be fair he was expecting company, but certainly not this.

The air in the room was thick with a mix of sweetness and an underlying current of something else... something that made his heart race and his cheeks burn.

Shirou took a tentative step forward, his gaze transfixed on the divine figures sprawled on his bed. They both turned their heads to look at him, smiles playing on their lips, their eyes gleaming with mischief. Yet, they remained unmoving, their bodies laid out in an alluring display of temptation.

"Welcome back, Shirou," Ishtar purred, her voice as sweet as the chocolate that coated her body. Her dark hair cascaded over her shoulders, framing her delicate features and accentuating the playful glint in her eye.

Ereshkigal's smile was equally as enticing, yet it bore an edge of shyness that perfectly complemented her twin's light. "Happy Valentine's," she murmured, her own voice a seductive whisper.

The sight was overwhelming, but Shirou's curiosity and exhaustion won out. He couldn't help but extend one finger towards Ereshkigal's chocolate-covered derriere, He gently traced the skin and the smoothness of the chocolate beneath his fingertip.

He brought the digit to his mouth, tasting the sweetness of the chocolate mingled with the faint sweetness of Ereshkigal's skin. The flavor was rich, the texture of the chocolate a decadent tease on his tongue.

Ishtar watched him with a knowing smile, her eyes gleaming with excitement. She arched an eyebrow as she reached behind her to spread her own cheeks, revealing a perfectly clean area. "Don't leave me out, Shirou," she cooed, her voice a siren's call that resonated deep within him.

Shirou's pulse quickened. He knew what she was asking for, and his body responded eagerly to the challenge. He stepped closer to the bed, unbuckling his belt and let his pants fall to the floor. "Let me savor, her first, Ishtar."

The anticipation was palpable as he positioned himself between the goddess' open thighs. He took a moment to appreciate the sight before him; the chocolate smearing across their skin, the way their bodies moved with each breath they took.

With one swift motion, he parted her cheeks, and her body quivered, he leaned over Ereshkigal. She spread her legs wider, her pink lips glistening with excitement.

Unfortunately he knew what made these two tick. Specifically he knew how to the vessel of they had chosen squirm.

Shirou took a deep breath, steeling himself for the divine pleasure that lay before him. He leaned over Ereshkigal, his erection pressing against tightly against pink rose of her anus. The chocolate smear served as a delicious lubricant, making the anticipation even more unbearable.

Without another moment's hesitation, he pushed into her, feeling the initial resistance give way to the warm embrace of her body. Ereshkigal gasped, her eyes fluttering closed as she felt him fill her up. The sensation was exquisite, a mix of pleasure and pressure that sent shockwaves through her body.

Shirou took his time, savoring the feeling of her tightness and the sweetness of the chocolate that melded with her natural flavor. He thrust in and out slowly, watching as the chocolate smeared onto his shaft with every movement. The sounds of their skin slapping together echoed softly in the quiet room.

Ereshkigal's moans grew louder, and her fingers dug into the bedsheets, her body writhing in pleasure beneath him. The sight of his cock disappearing into her divine backside was almost too much to handle.

As Shirou's rhythm grew steadier, he could feel Ereshkigal's body tensing up, her breaths becoming more ragged. He knew she was close.

Her moans grew louder, bouncing off the walls of the room, and her nails scratched at the bed as she neared climax. He watched her face, her eyes screwed shut, her teeth biting into her lower lip to stifle her cries.

"To enjoy being fucked in the ass, as expected of the goddess of 'underworld' Ereshkigal," Shirou murmured, his voice thick with lust and a hint of teasing.

Ereshkigal's cheeks flushed a darker shade of pink at the crude words, but she couldn't deny the truth behind them. Her body was made for this kind of pleasure, and she reveled in it.

Her back arched as she reached her peak, her walls clenching tightly around him, sending waves of pleasure through his body. He groaned, feeling her orgasm ripple through her, and his own climax built in response. He thrust one last time, burying himself deep inside her, and with a roar, he released his seed.

The room was silent for a moment, save for their heavy breathing. Then, with a sigh of contentment, Ereshkigal opened her eyes, looking back at Shirou with a look that was both satisfied and hungry for more.

Shirou slowly withdrew from Ereshkigal, his cock glistening with a mix of chocolate and her juices. He couldn't help but admire the artful mess they'd created together.

But there was more to the evening's entertainment. He turned his gaze to Ishtar, whose eyes were alight with eagerness. "Now, it's your turn," he said, a hint of a smirk playing on his lips as he stepped over to the goddess of love.

Ishtar's smile grew even wider as she watched him approach. She wiggled her hips slightly, the chocolate on her backside jiggling enticingly. "I've been waiting for this," she purred.

Shirou felt his cock twitch at the sight of her, already eager for more. He climbed onto the bed, positioning himself between her legs, which she spread eagerly for him.

The chocolate spelling begging to be tasted. He leaned in, his mouth watering at the thought of the divine treat.

Shirou's tongue traced Ishtar's skin, following the chocolate trail he reached the "V" licked it clean. Revealing the pink flesh beneath.

Her moan of pleasure was music to his ears, a symphony of divine satisfaction that only served to stoke the fires of his desire. He didn't waste time, aligning his cock with her slick pussy and pushed inside her.

Her pussy was hot and wet, tightly gripping him as he pushed in deeper. He could feel her pulsing around him, her body already on the edge from watching her twin's passionate union.

Shirou took hold of her hips, his fingers digging into the soft flesh as he began to thrust with more vigor. The room was filled with the sounds of skin slapping against skin and the sweet smell of chocolate and sex.

Ishtar's eyes never left his, her pupils dilated with desire as she matched his rhythm, her hips rising to meet every thrust. Her breath came in ragged gasps, and she could feel the tension coiling tighter within her with each stroke.

Her moans grew louder, her breathing ragged, as Shirou's thrusts grew more intense.

The chocolate was a sticky mess, but it only served to heighten the sensation as it smeared over their bodies, a sweet and sticky reminder of the indulgent act they were engaged in.

Shirou grabbed a fistful of Ishtar's long black hair, gently but firmly pulling her head back to expose her neck.

Ishtar's eyes rolled back into her head, and she let out a keening cry that was a mix of pleasure and surprise. "Ah, Shirou," she breathed, her voice trembling. "This isn't how you treat a goddess."

Her protest was weak, however, as she could feel the waves of pleasure crashing over her. His grip on her hair was firm, but not painful, and it only served to make her more eager for what was to come.

Shirou leaned down, his teeth grazing her butt cheek, he marked her with his teeth. He licked the spot, the sweetness of chocolate mixing with the slight saltiness of her skin. The bite was playful yet possessive, leaving a distinctive mark of his claim on the goddess' flesh.

"I know how to treat a goddess," Shirou murmured, his voice low and filled with desire. He tightened his grip on Ishtar's hair, his hips pumping faster as he claimed her.

Ishtar's eyes snapped back to meet his, a look of challenge in them. But she couldn't hide the pleasure that washed over her features as he bit her again, leaving another mark on her skin.

Shirou's strokes grew more erratic, his own orgasm approaching. The room was a blur of sensations, the taste of chocolate, the scent of arousal, the feel of soft, sticky flesh beneath his fingertips.

Ishtar's walls tightened around him, her moans growing more urgent. He could feel the heat building within her, the tension reaching its peak. With one final, powerful thrust, he buried himself to the hilt, filling her with his cum.

The warmth of his release sent her over the edge, her body convulsing in ecstasy as she screamed out his name. The chocolate on her skin melted even more under the heat of their passion, creating a decadent mess that only added to the intensity of their union.

Ishtar's orgasm washed over her like a tidal wave, her body trembling as she clung to Shirou, her nails digging into bedsheets.

Shirou pulled out of Ishtar, his cock still quivering from the intensity of his climax. The writing on her backside was now a messy smear, melded with the proof of their passion. He couldn't help but admire the marks he'd left on her skin.