Amidst the scratch-scratch-scratching of the mechanical pencil in her frantically moving hand, a different, more mechanical sound echoed from within her body: a low, insistent vrrrrrrrrrrrn.
It was the fifth period, right after lunch.
While some students, with full stomachs, were dozing off and nodding in their seats, Tojo Koneko was trembling, her body wracked with the pleasure from a ruthlessly moving vibrator.
'Nnnngh ... My master... to think he'd insert something like this inside me...'
During the lunch break, Mitarai had called Koneko out. Just when she thought he was just playing with her down there, he'd suddenly, literally, thrust a thick vibrator into her cunt. It seemed to be one of the Underworld-made vibrators Rias had given them before.
The controller, with its buttons for adjusting the rhythm and intensity, was separate from the main unit and was currently resting in Mitarai's pocket.
This left Koneko with no choice but to endure the sweet numbness resonating from deep within her vagina. Luckily, he had cast a perception-blocking spell, so no other student would notice anything amiss. But she absolutely had to hold back her voice.
Each time the vibrator rubbed against her vaginal walls, now slick with her arousal, it produced a lewd, wet gush-gush sound. More dangerous than that, however, were the sweet, breathy sighs escaping her lips.
Her vaginal canal, stretched and accustomed to him by now, could easily swallow vibrators of most sizes. Though, she'd never seen one that boasted the same impressive length as his.
'Ohh ... N-no, wait ... When it presses and grinds against my cervix like that...' The vibrator moved back and forth, just like during sex.
Unlike human-made toys, this Underworld device had a perplexing feature: it didn't just vibrate side-to-side, but could also move up and down. Apparently, it was crafted long ago when the number of devils was much higher, rumored to have been used by nobles for their own amusement with maids. It seemed they enjoyed using it on maids who had never experienced sex, as it could perfectly replicate the motions of the real act.
The tip of the vibrator persistently bumped and nudged against her cervix, as if trying to push into her tiny womb.
Unlike Mitarai's cock, there was no fleshy warmth here, only unyielding hardness. Its movements constantly reminded her that the object inside her was just a tool. It didn't swell with arousal, remaining the same thickness from the start.
Yet, for Koneko, it was still thick enough to steal her breath away. It would rotate, churning her love juices, or move slowly, as if tracing the intricate folds and bumps of her vaginal walls. The way it could so accurately perform these pleasure-inducing movements, without even being seen, was perhaps to be expected.
Each time the tip collided with her cervix, an unmistakable moan escaped her lips.
The sheer unreality of the situation, sitting in a class that was supposed to be learning, while she herself was immersed in pleasure, excited her further.
The outline of her puffy nipples became clearly visible beneath her blouse. Mitarai had ordered her to go braless and panty-less during the lunch break, and like the devoted servant she was, Koneko had obediently complied.
Thanks to that, she could see her own erect nipples poking against her uniform.
'Ahh ... My nipples are getting hard... Seeing them like this…'
Taking her hand away from her mouth, she reached for the buds straining against her blouse. Rubbing and rolling them between her thumb and forefinger sent a sweet numbness spreading through her, weaker than the vibrator's stimulation, but pleasurable nonetheless.
Biting her lip to stifle her voice, yet completely overwhelmed by her instincts, Koneko began to shamelessly masturbate.
Her fingers moved, scratching lightly with her nails, twisting and teasing, finding what felt best. With each touch to her nipples, her internal muscles clamped down tighter around the intruder inside her, squeezing so hard she could feel its precise shape moving within her.
Unable to contain the overwhelming pleasure, her body released a gush of fluid, spasming as if trying to escape the intense sensations. Her entire frame convulsed with each wave, and the air around her filled with the sweet, cloying scent of a catgirl in heat.
Thankfully, she'd had the foresight to place a handkerchief beneath her, so she hadn't soiled the floor or chair, but the shame still burned inside her. Knowing she couldn't stay in the classroom any longer, she told the teacher she felt unwell and hurried out.
Leaving behind a trail of damp spots on the floor with each step she took.
After school, Mitarai was summoned by Shirone…
He was directed to a restroom in a remote corner of the school, one that seemed rarely used. Unlike their first encounter in a place like this, the message said she was in the girls' restroom this time. After checking his surroundings, he slipped inside.
The moment he entered, the scent of a female in heat hit his nostrils. It was an intensely rich aroma, so thick it completely masked the usual musty smell of a school toilet.
'What in the world is Shirone doing?' Curiosity piqued in Takashi's mind.
The door to the stall mentioned in her text was unlocked. He surmised that, like last time, a barrier ward to keep people away had been placed over the entire restroom.
Opening the door, he found Shirone, the one who had called him there. She was sitting on the western-style toilet, indulging in masturbation, using the vibrator and her fingers together, the sounds wet and lewd.
The sweet smell saturating the entire restroom originated from between her legs, and it was only growing more potent. Her eyes were glazed over, lost in self-pleasure, but the sound of the door opening caused them to focus on him.
"Sen...pai...?"
"You called me, Shirone, so I came. That's quite a powerful scent, though. It was drifting all the way to the entrance. Aren't you worried someone else might notice?"
"Ah... ugh... It's all your fault, senpai... doing that to me during lunch break... "
She tried to glare at him, but her eyes were too melted with pleasure to be threatening. It was almost cute, like a small child desperately trying to look angry to make a point.
Despite the glare, her fingers never stopped, the wet sounds continuing to echo in the stall. So much honey was dripping from her honeypot that you'd worry her fingers would prune. It wasn't just her fingers; the toilet seat and the floor were stained with it.
"Don't tell me... you've been here since this afternoon?"
"...That's right. Because senpai was so mean, I couldn't hold it in anymore. I slipped out, and I've been here all alone ever since. Look, see the tip of the vibrator you gave me? It's all sticky with my real juices that turned white."
She thrust the pink, buzzing wand towards him….
...
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