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This story was written for Chris13131415 as part of my 2018 Alphabet Challenge. It contains masturbatory and shared sexual acts involving consenting adults, a female and an intersex male. <3

Q is for Quivering

"Kneel down... just a little to the left, okay. Okay, right there."

Kurt gently lowered himself to the ground upon his knees, his face slightly flushed beneath the blindfold wrapped around its upper features. He felt Jill's hands release his, no longer guiding him as they had been for a minute or so now since the blindfold was first applied. Instead he felt her grasping at his wrists, and guiding them back to his sides, then down to whatever object he was currently straddling, able to feel its girth between his thighs. The leopard opened his muzzle to ask what was happening, to query exactly how this was a reward and whether the doe did in fact recall that he was the one who had proven victorious in their bet. Before he had a chance to do so though, he felt two sets of what felt like padded handcuffs close around his wrists, and gasped as all of a sudden he was trapped upon whatever object he was now mounting.

"H-hey!"

He cried out, only to blink and wince in shock as without warning Jill freed him from his blindfold once more. The male's first instinct was to look around, recognising the interior of the small pool-house next to the running track and pool that he and Jill so frequently used to keep fit, but not this room in particular. He assumed it therefore could only be the pool-house bedroom, the only room of the structure into which he had never set foot. To his knowledge though, at least prior to just now, he had always thought that Jill had also never set foot there. Looking down however, and seeing what it was that rested between his lean but muscular thighs, Kurt could most definitely put together that he was incorrect in that assumption.

Between his legs, with his wrists now bound to the structure of the device and with Jill looming over him with a devilish smile upon her normally sweet cervine features, was a type of machine that Kurt had only ever seen in videos before. Very intimate, very exciting videos, normally featuring a woman driven to fits of screaming, shrieking, thrashing ecstasy. He was straddling a sybian, an immensely powerful vibration-focused sex toy. And with nothing more than a tightly fitted one-piece bikini covering his body, in particular his nether regions which even now were resting against a padded, slightly curved surface that rose up and out from the main body of the device, Kurt knew that this was a very intense, very overwhelming place for him to be.

"H-how is this a reward?"

He groaned bashfully to Jill who was still standing over him, arms folded across her modest chest and legs spread slightly, her own one-piece bikini slightly hiked up so accidentally or otherwise he could make out the lines of her own pussy through its tightly stretched, water-resistant material. Licking her lips playfully, she shrugged and giggled.

"It's a reward because I'm not going to tease you. I'm not going to edge or deny you. It's a reward because this is one of my favourite toys to use, to unwind after a long exercise regime and relax all my body's tensions. And if I love it that much, if I can handle it... then surely you, Kurt, you who is sooo much faster and better than me that you won our latest contest, must be able to handle it too. Otherwise, what kind of winner would you be?"

Kurt never had a chance to answer that question, or to even ask himself whether Jill's reasoning made the slightest bit of sense. All he knew was that a moment later the doe was on her own knees beside him, crawling around the sybian machine and binding his ankles to it just as she already had his wrists, ensuring that there was no way now that he could pull away from the device. After that all she had to do was crawl back around to the front of the toy, detaching a small panel from the front and pulling it towards her with a long, thin cable linking the control unit to the sybian's body itself. She sat in front of him, knees raised to her chest and legs spread so that Kurt could once again see the stretched and defined outline of her nether regions through her own one-piece bikini, and as with one hand she activated the sybian's intense vibrating motors, the other one of the deer's delicate hands reached down between her legs, and started to stimulate herself as Kurt gave his first cry of pleasure, and felt his pussy, his thighs, and his entire body beginning to quiver under the exceptional, exquisite force of that potently pleasurable device.

"Ohhhhh god, oohhhhh..."

The sensation of that intensely vibrating pad pressed against his bikini-bound crotch was far more intense than Kurt had expected. He had expected the fact he was to some degree clothed to cushion the blow of the vibration and dull the sensation at least a little, but within moments of the intense vibration beginning to surge through him he was glad of that ever so slight barrier. The pad of the sybian that he was straddling had appeared almost flat when he had been resting upon its motionless form, but now it was very clear that there was a slight raised bump towards the front of the pad, holding it in perfectly agonising direct contact with his clitoris. He let loose gasp after gasp, moan after moan of pleasure, and could hear the vibration in every sound that escaped him, his voice quivering under the relentless thrall of the toy.

Rocking his hips back and forth, the only motion he could make given that he was practically unable to lift himself up off the toy, and that pushing himself down tighter against it sounded like orgasmically-assured devastation given how intense the sensations already felt, seemed like a great idea at the time. As soon as Kurt attempted the action however, he swiftly learned otherwise. The sybian was vibrating so rapidly, so viciously that even the slight motion required to shift his clit across that raised nub meant forcing himself to experience the normal potent stimulation applied to that sweet spot many times over. He wailed in blissful frustration, shaking like a leaf as he ascended to the heights of his first orgasm. The first of what, if the lustful, gleeful expression on Jill's face was to be believed, was going to be a great many more.

In an act more of defiance against what was obviously Jill's plan than any lack of enjoyment on his part, Kurt tried not to react as that first intense peak loomed over him. He tried to keep his face neutral, to calm his body and not let it react as the sybian buzzed and stimulated him towards what might otherwise have been thrashing, howling orgasmic rapture. For a brief while he even managed it, but to his horror there was one portion of his body that appeared unable to maintain its equivalent of a poker face. The closer he got to orgasm, the more his thighs quivered. Not just with the same vibration that was passing through most of his body, but with a visible, tangible quaking of their inner musculature. It had begun as a slight twinge whenever a particularly strong shock of pleasure surged through the leopard, but by now it was constant, and it was utterly outside of his control to hide the quivering of his thighs as that first orgasm raced towards him.

"Oh, Kurt... you're gonna cum, a-aren't you?"

Jill moaned as she rubbed herself through her clothing, a darker spot glistening on the crotch of her bikini where her masturbation had borne fruit.

"I can see it. I can see your body quivering. Oh... o-ohh, it looks so hot when you shake like that. But, is it not enough to make you cry out? Do you want more?"

Kurt's eyes widened, and he opened his muzzle to say that he didn't want more. That the amount of ecstasy currently surging through him was absolutely enough. But of course, he never got that opportunity. Jill twisted a dial upon the sybian's control panel, and the already unbearably delicious vibrations surging through Kurt's one-piece and into the sensitive flesh of his pussy was multiplied many times over. The deep, rumbling hum of the powerful sex toy echoed around the room, and over it, far louder and far more shrill in tone, was Kurt's first howl of pure ecstasy as his thighs quaked, his pussy spasmed, and he was lost to the first of countless orgasms thrust upon him by the sybian's buzzing fury.

Had it not been for a clock upon the wall of this secret sex room that Jill had kept hidden from Kurt, he might have thought that he had been strapped to the sybian for days or even weeks. It seemed impossible that only two hours had passed when Kurt looked up at the clock and became aware of that fact, mewling not in orgasm that time in particular but in dismay, with an orgasm crashing over him and replacing those cries with mindless wails of pleasure barely a handful of seconds later. He didn't know if that was his twentieth orgasm, his fiftieth or his five hundredth. The leopard had lost count somewhere in the high teens, and for the life of him he couldn't figure out whether that had been five minutes ago, half an hour, or mere minutes after the sybian had first been turned up to the level that was currently pummelling his pussy into submission one devastatingly powerful, deliciously pleasurable orgasm at a time.

If indeed there was any clear way of accounting for the passage of time beyond the clock however, it wasn't anything to do with the number of orgasms that had passed through Kurt's own body. It was all about the woman kneeling in front of the leopard, watching him, drinking in his pleasure as orgasm after orgasm crashed through him with more still to come. To start with, Jill had looked gleeful and devious as she drove Kurt through those repeated, mind-bending peaks. Then she had looked lustfully triumphant. Then just plain lustful. And now... now as she knelt before him, huffing and grunting and caressing her clit openly, having long side pulled the fabric of her own bikini to one side, now the expression upon her face was one of pure jealousy.

After all, Jill had placed Kurt upon the sybian to prove that he couldn't handle the pleasure like she could. That he didn't have the stamina to cum as many times as she could cum before begging for the toy to relent, even if he had managed to outmatch her in a contest of fitness some hours prior. Two hours later though, pleasure-crazed and overwhelmed as he might have been, he was still going. He was still going, and seeing him take so much pleasure and cum so many times was making Jill jealous not only because before long he would be approaching a length of time that even she would struggle to handle, but also because seeing him quaking and quivering under the potent thrall of the sybian was making Jill want to feel those intense vibrations for herself.

"Dammit Kurt..."

She whimpered some ten minutes and another handful of orgasms on his part later. The leopard's eyes widened, and he stared glassy-eyed, dumbstruck by his own body's capacity for pleasure, at the doe. He stared as she dragged herself to her feet, as she peeled off her one-piece to reveal her slender, utterly bare body with its crotch already glistening with arousal, and he groaned in lustful confusion as she stepped forward, closer and closer to him, onto to drop to her knees once more not just close to his body, but upon it.

"I... I need this. I need to feel it. To feel what you're feeling. To vibrate, to quiver... t-to cum with you."

The doe straddled Kurt, with her pussy pressed tightly to one of his bare, fluffy thighs. She wrapped her arms tight around him, and whimpered happily as the sybian shook and hummed violently as ever beneath them, the aftershocks of that vibration coursing through Kurt's body and right into hers.

"Oh god. O-ohh god, yes. Yes, Kurt. Do it. Quiver for me. Ohhh... l-like that. Yesssss..."

Kurt's eyes bulged wider still as he watched and felt the deer plastered against his body beginning to rock and grind against his leg, to hump him just like he had so ill-advisedly started moving against the sybian when he first mounted it. Where such stimulation had proven too much for him though, it didn't seem enough for Jill whatsoever. She whimpered and huffed as she watched Kurt's eyes roll back in his head and felt the leopard shudder from head to toe in yet another savage orgasm, but without the same crashing levels of overwhelming pleasure for herself. More and more feverishly she rubbed and bucked herself against the quivering male's body, but before long she pulled away from him yet again with a grunt of dismayed anguish.

"N-not enough. Not enough. I need more. I... ooh god, Kurt. You're gonna give me more."

Crawling on all fours with her ass and beautiful pussy on full display to the sybian-bound leopard, Jill scrambled her way back over to the device's control panel. She pulled it back with her, and soon mounted Kurt anew with the controls clutched in her hand once more.

"You're using my toy, a-and getting all the benefits of it. So now... now I'm gonna use you, Kurt. You're gonna be my toy. You're gonna shake for me. Quiver for me. A-and... oh god, you're gonna make me cum just like the sybian is doing for you."

She clamped her own quivering, twitching thighs down around Kurt's own. She wrapped one arm around the male's shivering, panting body, and with the other she held the control panel out so that both she and Kurt's glazed eyes could see what she was doing to it. Her thumb came to rest upon the sybian's power dial, currently resting somewhere around what to Kurt's horror looked to be only twenty five percent of it's maximum potential. Their eyes met, and as the leopard gave a desperate, pleading whimper, Jill just giggled.

"Ohh god, Kurt. I'm gonna cum so hard. So good. A-and... it's all gonna be because of you. It's all gonna be you making me do it. Thank you. Oh. Ohh fuck... thank you so much."

Without waiting, without caring to hear his response, she began to twist the dial rather more rapidly than the last time. She didn't just knock it up from twenty five to thirty five percent of capacity like she had lifted it from fifteen percent to twenty five before. She twisted more firmly, and wrenched the dial clean past fifty percent. The sybian's motor whined with the sudden intensity of its action, and Kurt threw back his head in an ear-splitting cry as the force of the sensation catapulted him headlong into another wild, potent orgasm. His body shook, vibrating violently alongside the machine on which he was mounted, and as the thigh between Jill's legs began to quake and quiver more and more forcefully, she too gave a joyous, giddy shriek.

"Yes! Yes! T-that's it. Oh god, just like that. Just... a-aa-aahhhh... faster! Harder! Please, Kurt. More!"

The sybian's power shifted to three quarters of its full potential, and as Kurt all but passed out from the pleasure, his head falling limp upon one of Jill's shoulders as he grunted and fought to breath through the constant stream of orgasms crashing over him one by one without pause, he felt Jill humping and grinding joyously against his uncontrollably quivering thigh.

"I... ohhhhyesssssss, I'm doing it! Kurt, y-you're making me... yes! Fuck, ohhh fuck yessss, I'm cumming! I... I'm squirting! Oh god! Ohhh god yes, aa-aaahhhhhhhh!"

True to her word, hot waves of ejaculate poured out over Kurt's thigh as the vibration surging through him and into Jill made the doe not only cum as long and as hard as she'd craved, but forced her body to unleash a surge of hot, potently orgasmic fluids. She clung to the lust stricken and barely conscious male as he twitched and quivered in his constant, unbearable rapture. She humped and wriggled her soaking wet, clutching, quivering pussy against his helpless form, and even as her first orgasm finally began to abate, she whimpered hungrily, feverishly to the man whose reward was surpassing not only anything that he had conceivably imagined experiencing that day, but what she had hoped to achieve for the both of them too.

"Oh Kurt. Ohhh, ohh yes. Again. Please, ohh please, Kurt. I... t-that felt so fucking good. Please don't make me stop now. Let me cum. L-let me... ooohhhyesss... let me feel you carry me to orgasm one more time, m-my handsome, living, quivering sybian. Just... ah! Just one more time, please!"

By Jeeves

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