Chapter 1 - Chapter 1

In an old building on the grounds of Kuoh Academy, two girls were considering a letter that one of them had received. Both of them were extremely beautiful, with eye-catching long hair and buxom figures, traits that earned them the title of Kuoh Academy's Two Great Ladies.
 
"Buchou, any idea who the letter is from?" Akeno Himejima, the black-haired girl of the pair asked the other.
 
"None, unfortunately." The redhead seated behind the desk replied. "There's magic in this, certainly, but it doesn't feel malicious."
 
Rias Gremory looked at the unfamiliar wax seal on the envelope that was lying on her desk thoughtfully, arms crossed under her generous bosom. Standing at her side, Akeno was also doing the same.
 
"If it doesn't feel dangerous, why not just open it?" Akeno suggested.
 
Nodding in agreement, Rias cracked open the wax seal. Instantly, a sweet scent hit both of their noses. It grew stronger as the redhead opened the envelope and pulled out the letter, entrancing both girls without their realization.
 
"That's a nice smell..." Akeno murmured faintly.
 
"Yes, it is..." Rias agreed, absently fumbling with the letter.
 
Wanting to get a deeper sniff of the scent, the black-haired girl leaned in closer. The moment Rias opened the letter, light suddenly burst out from it, stunning them before their addled minds could react.
 
Relax... relax... An ethereal voice spoke directly into their minds, and the tension that were in their bodies faded away. Yes... relax... 
 
Rias and Akeno exhaled, faint smiles on their faces as they continued to stare at the glowing sheet of paper. To them, there was nothing wrong with what they were experiencing.
 
Breathe in... deep... it smells good... enjoy the smell... breathe in... deeper...
 
Once again, both girls acted in unison, their breasts jiggling erotically as they inhaled, sucking in more of the sweet, heady fragrance the letter was putting out. It served to dull their minds even further, making Rias and Akeno even more vulnerable to the letter's magic.
 
Listen... listen... The voice started saying things to them, things that they wouldn't consciously remember, but absorbed. Feels good... to listen...
 
Neither girl moved a muscle, but beneath their bras and panties, nipples hardened and pussies moistened.
 
Obey... obey...
 
"Obey..." Rias and Akeno chorused in low voices. "We obey..."
 
Come... come to me...
 
The glow faded from the letter, leaving the two girls blinking in confusion for several moments.
 
"What does it say, Buchou?" Akeno asked, being the first to recover.
 
Rias scanned the piece of paper. "Let's see... it's a request to visit the sender of this letter."
 
"Well then, shall we go and see what he wants?"
 
Neither of them questioned why they complied so readily, instead the beautiful pair of females made their way over to a corner of the room, where a magic circle appeared and teleported them away. Moments after they had left, the letter, abandoned on the desk, vanished in swirl of rainbow light, leaving no evidence of its existence.
 
Elsewhere in a place that very few people knew about, Rias and Akeno found themselves arriving in a modestly furnished entrance hall. Neither of them recognized the place, but they showed no caution at all.
 
"Welcome, my ladies." A man in a suit greeted them. "Thank you very much for accepting my invitation."
 
"And who might you be?" Rias asked curiously.
 
"That doesn't matter for now, my dear." He replied smoothly.
 
"It doesn't matter." Akeno agreed, as her friend nodded.
 
Both girls thought that the man's voice sounded very nice; it made their bodies tingle pleasurably, even more so when they agreed with what he said.
 
"First, I would like you ladies to try a special drink I have prepared for you." The man snapped his fingers, and a maid entered the room.
 
The newcomer was carrying a tray with two silver goblets on it, and she offered one to each girl in turn, leaving once they had accepted them. The two ladies looked down at the cups they held, both of which contained a thick milky fluid with a strong musky aroma, one that smelled familiar to them, as though they had only experienced it recently.
 
"Smells good, doesn't it?" The man remarked, studying both girls intently. "Go on, take a deep sniff of it."
 
Rias and Akeno did as he said, and their bodies trembled slightly as the smell hit their brains hard. All thought fled from their minds, except for how good the smell was, and the man's voice telling them to bring the goblets to their lips. As one, the redhead and brunette tilted their heads back, and let the viscous liquid flow into their mouths.
 
"Yes... let it fill your whole mouth... don't swallow yet..." The man continued to encourage them on. "Savor the taste..."
 
Even though the amount in the goblets was more than their mouths could hold, both girls persisted in trying to transfer the entirety of it, not caring if some spilled out from the corner of their mouths and down onto their school uniforms. When they finally lowered the empty cups, the two of them stared straight forward with unblinking gazes, their lips smeared and cheeks bulging with the liquid.
 
"Swirl it around... gargle it... it feels like it's trying to impregnate your oral hole, doesn't it..." The man watched as both girls absently moved their jaws. "Now... swallow." He hissed.
 
A pair of throats gulped, sending the heavy-scented fluid downwards into their respective bodies. For a moment, nothing happened to the smiling ladies.
 
Rias and Akeno shivered visibly, their eyes rolling back in their heads as their mouths fell open to emit desiring panting. Two pairs of nipples suddenly jutted out distinctly, obvious even through underwear and blouse. At the same time, clear liquid began dripping down from between their legs, trickling down their trembling thighs and forming puddles at their feet. The scent of feminine arousal filled the place.
 
"Beautiful..." The man said, taking the opportunity to grope their large breasts, eliciting moans of pleasure from both girls. "Let's get to the main act, shall we?"
 
When Rias and Akeno finally recovered enough of their awareness, it was to find themselves facing two imposing stallions in a stable. Both horses were huge and muscular, towering over the girls they looked down upon with demonic glowing red eyes, but what grabbed the two females' attention were the equally gigantic horse penises that hung down from beneath their bellies.
 
"Let me introduce you two ladies." The man's voice barely registered in their minds, so focused were they on the enormous sexual organs in front of them. "The black one's name is Master, while the chestnut goes by King. They're the ones who provided that delicious drink you two had earlier."
 
Akeno licked her lips as she met the dominating gaze of the black stallion, before dropping her eyes down demurely. Rias absently squeezed one breast through her blouse, biting her lower lip as she stared at King's cock.
 
"I'll leave you to enjoy yourselves..." The man whispered, and left the stable.
 
Rias glanced helplessly at Akeno for a moment, as though wondering why they were doing this, but the other girl was already moving towards the black stallion. A hot breath blew into her face, as the other horse reminded her of her presence. The redhead could still taste some of the ambrosia in her mouth, and it filled her with the urge to get more from the source. Before she knew what was happening, Rias found herself crouched beneath the stallion, her face uncomfortably close to its penis.
 
Up close, it looked even more imposing. The shaft itself was so thick she couldn't get both hands around it, and the glans itself was the size of her hand. Rias felt dizzy as she breathed in the musky smell coming from it, but the urge to taste it was overpowering her, causing her to drool. The next thing she knew, pleasure exploded throughout her mouth, and the redhead was greedily licking away at the shaft.
 
"Mmm, ppblph, haa..." Across from her, Akeno was already licking at hers, blissfully immersed in the act.
 
The Thunder Priestess could feel the blood rushing through the thick erection beneath her hands and tongue, impressing her with its hidden power. She had never tasted anything so strong and delicious before, and was eager to experience it to the fullest. Running her tongue up along its length, Akeno soon arrived at a large black scrotum, looking very much like two grapefruits in a bag. Caressing and fondling them, she didn't care about the drool running down her chin at the thought of the milky ambrosia within.
 
Master's sudden movement took her by surprise, but the biggest shock came was when the head of a gigantic horse penis slapped her across the face.  Taken aback, Akeno turned to look at the stallion's head, which was now turned so he could look at her with a domineering red eye. It didn't say anything, but the meaning, the command, was obvious.
 
Pleasure me.
 
A lustful smile spread across Akeno's face. "Yes, Master. I'm sorry for-"
 
The horse shifted and smacked her with his penis again, silencing her in mid-apology.
 
Shivering as she had a light orgasm, Akeno focused once more on licking the enormous sexual organ. She was a sadist who took pleasure in inflicting pain upon her enemies, but being dominated like this had awoken her masochist side, and she found herself liking it a great deal. Opening her mouth as wide as it could go, Akeno wrapped her lips around the flared head and started sucking, teasing the urethra with her tongue.
 
Nearby, Rias was starting to become aware of what she was doing, yet she remained completely unable to stop herself. Like her closest friend, she had discovered the testicles, and was currently giving it alternating licks and kisses as her hands groped at her own breasts to enhance the pleasure she was feeling. The musky smell of sweat, piss and semen coming from the scrotum stung her nose, but it served to raise her arousal further.
 
The obscenity of the whole thing should have disgusted her, but the redhead could only think about how incredible it would be to taste the thick horse cum contained in the sack of flesh she had her face pressed against. Not just taste; Rias ripped open her blouse and pinched one nipple directly, almost squealing from the sensation.
 
Her horny thoughts didn't stop there; after this, King was going to dominate her and make her his cocksleeve, stretching her virgin cunt to its breaking point with his gigantic rod, defiling her holes with his virile horse cum until they were completely full and leaking. Rias was eagerly looking forward to it. A hand jammed itself into her soaked panties, and began pumping fingers in and out of her pussy, loosening it up for later. Her oral ministrations didn't cease even when King shifted to bring the head of penis back near her mouth, which accepted the large glans inside as though it was meant to be there.
 
"Mmm! Slurp! Glurb! Hhh!" Rias gagged, the size almost cutting off all her air, but her hips were humping up and down, scattering her own lust juices over the stable floor.
 
With two mighty snorts, both stallions ejaculated, spraying the two girls with copious amounts of semen, causing them to orgasm as well. Akeno had the tip within her mouth, and struggled to swallow as much as she could, but quite a bit of it spilled from the corner of her mouth and ran down her body. Rias gasped when she received a torrent of milky jizz in the face, but quickly opened her mouth to try and receive as much of it as she could, not caring about how much of a mess it was making of her clothes and her beautiful crimson hair.
 
The demonic energy in the fluid affected Rias and Akeno intensely, working from both inside and out to boost their sensitivity and pleasure, preparing their bodies to take King's and Master's massive stallion cocks by widening their vaginas and cervixes.
 
By the time the horses were done, both girls looked an awful mess, but the expressions of bliss they wore spoke volumes about how much they enjoyed it. But they didn't have the leisure to bask, as the two males prodded them into moving on to the next act.
 
Submit. Offer yourselves. 
 
In a trance, Rias and Akeno shed their clothes, dropping the cum-stained fabrics to the stable floor and exposing their erotically sexy bodies. King nudged Rias up against the wall, and the devil girl obediently placed her hands against the brickwork and stuck her butt out. On the other side, Master shoved Akeno roughly, knocking her against a padded bench. Moaning encouragingly, the black-haired girl struggled up onto it, with the black stallion's pushing and prodding her along.
 
Both girls spread their legs to expose their leaking pussies, moaning as the horses moved into position, bringing their spongy cockheads into contact with their sex.
 
"Take me..." They begged in unison.
 
Rias screamed out in a mix of pain and pleasure as King thrust forward, his powerful thighs smashing the thick shaft mercilessly through her maidenhead.
 
"AAAAAAHHH!" Her blue eyes shot wide open as she gasped for breath. "Ah, ah, oh, oh, hah, so, s-so BIIIIG!"
 
She whimpered as it withdrew slightly, before crying out once more when it punched forward again, this time going a bit deeper than before.  With each thrust, Rias felt her vagina widening and lubricating to give King more access to her most precious place, until the head of his cock suddenly breached past her loosened cervix and into her womb.
 
The Crimson-Haired Ruin Princess didn't know what was happening at first, until her ears picked up what her mouth was saying.
 
"More, more, more, more..." Her voice was chanting.
 
Snorting, King braced himself on his hooves, and started pumping his hips. Rias screamed, this time in delight, as her pussy was fucked by a massive horse cock. Her tits swung back and forth as the force of King's thrusts rocked her body, moving in time with the stallion's own balls and sending jolts of pleasure as they smacked roughly against the wall.
 
 On the padded bench, Akeno was also gasping for air as her body struggled to adapt to the enormous penis that was filling her baby canal. Unlike Rias and King, Master's cock was only a few inches inside her. She waited in anticipation for the stallion to move, but Master seemed content to just have his cock sheathed inside her stretched out cunt. It wasn't until she heard an annoyed snort that Akeno realized what he wanted her to do.
 
"I'm sorry, Master." The black-haired girl cooed, "I will do it right away."
 
Reaching down between her legs, Akeno gripped the meaty pole and began moving it in and out of her. Some part of her mind was shocked to see traces of her virginal blood coating it, but it was overwritten by the sensations her actions were causing.
 
"Ohhh, Master, Master!" Akeno moaned. "Your cock, it's so big, it's a little painful..."
 
Despite her words, her hands only moved faster, pumping the hardening cock in and out of her pussy more quickly. Pain flashed across her face as the engorged head continued to force her love tunnel to widen, but the expression of bliss she had persisted throughout.
 
"It hurts, it hurts, it hurts... so gooood!" She noticed something. "Ahhh... those balls, they're so swollen... packed with so much cum..."
 
The Thunder Priestess stared down at herself in fascination; her body had been altered by the demonic cum to be able to take in massive-sized penises beyond what normal devils were able to handle, and the results were obvious by the bulge moving up and down her belly. Each thrust brought the edge of the bulge closer to the bottom of her breasts, as Master's cock pounded into her womb and stretched it upwards through her internal organs. It hurt, but it felt good at the same time too.
 
Even through the mix of agony and ecstasy she was feeling, Akeno bent her knees to bring her feet around to touch her mating partner's testicles. Giggling, the sadomasochist began kneading it with the balls and toes of her feet, and was rewarded with a fierce thrust of a swelling cock that took her breath away.
 
"Does that... uggghh... feel good, Master?" Akeno continued to tease the stallion's scrotum, feeling it tightening beneath the soles of her feet. "You're about to cum... uhhhn... aren't you?"
 
The horse whinnied, and she suddenly felt something rush out from the balls and down the length of the penis into her.
 
"YES! DO IT! CUM IN ME!" Akeno screamed. "Semen! Give me your semen! Fill my womb with your see- EEEEEEEE!!"
 
Cum blasted straight into her sensitive womb, blowing it up like a balloon and making her belly swell like a woman about to give birth. Some leaked back through her dilated tunnel and leaked out, drenching her hands with milky semen. Akeno blanked out from the sensation overload, and collapsed back with her eyes rolled back.
 
Master made a satisfied sound, and finally began to thrust his hips. The girl beneath him gurgled and choked as she was used as a cocksleeve, her breasts flopping up and down in time with the balls slapping against her ass. The semen deposited inside her earlier squirted out of her cunt with each thrust, splattering across the floor. After a few minutes, the horse grunted, and her belly swelled up even more.
 
Against the opposite wall, the unconscious girl lying on the ground could no longer be recognized as the Crimson-Haired Ruin Princess. Her whole body was covered in horse cum, as she had literally taken a shower in it, and a milky puddle grew around her hips as semen leaked out from her gaping cunt. Her tongue lolled out of her mouth, and her blue eyes stared up blindly at the ceiling.
 
"Eheh... hehhehheh... so goooood..." Rias babbled blissfully.
 
"Horse... cock... horse cock... cocksleeve..." Akeno repeated, even as the black stallion pulled out and ejaculated over her.
 
Much later, Kuoh Academy's Two Great Ladies, hardly looking deserving of their title, could be found sitting on chairs with holes in the seat, inspecting their loose pussies as semen drained from their stuff wombs into containers underneath them.
 
"What should we do, Buchou?" Akeno mumbled, absently stroking her clit. "We look really awful like this..."
 
"I'll ask Asia to help heal us..." Rias shivered as a particular viscous dollop slithered out and fell with a loud plop.
 
"I'm sure she'll help keep this a secret if we invite her along the next time." Akeno agreed.
 
The two devils shared a smile between themselves.
 