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This story was written for Kio Redsen. It contains M/F sex between consenting adults, size difference, and fisting!

Put Through His Paces

"Listen up, rookie... if you want a second shot at this, you need to prove yourself tonight. And that means no slacking. No half-assing it. No getting distracted, or thinking of yourself and what you want alone. Tonight is about something bigger. Something greater than either one of us."

Kio swallowed, and hiccuped bashfully as he nodded at the polar bear drill instructor standing before him. Her vast, powerful, naked body was gorgeous to behold, and the blue furred fox's erection stood as testament to his intent to succeed at any challenge she set him.

"I don't give just anyone a date. You're cute, and sweet, I'll give you that. You wouldn't be in my bedroom and looking at all this if you weren't. But I'm a woman with needs. A woman with expectations. And I don't just expect those expectations to be met. I expect you to exceed them. Because if you don't, foxy-fluff? You're dead!"

The male's eyes widened, and the polar bear blushed, giggling as she raised a paw to her muzzle.

"Uh. Sorry. I get caught up in the spiel from work sometimes. What I mean is, if you don't exceed my expectations? I won't just not call you after tonight, I'll toss you out on the street without cab fare home."

Snorting with laughter, Kio nodded up at Emma. The polar bear was the head drill instructor at the ZPD Academy, and it showed in every aspect of her body and personality. Yet at the same time, she was funny, she was cute as hell, and Kio hadn't been able to stop thinking about her since the first time he'd been introduced by a mutual friend. Yes, her method of dating might have been a bit no nonsense for some, but thus far he had managed to rise to her every challenge. He'd picked a restaurant she loved, he hadn't offended or insulted her over dinner or the drinks that followed. And now, he was ready to take on the biggest challenge of all.

"That's fine, Emma. You do what you need to do. And I'll do what I need to do... which right now, means you lying down on the bed with me, and letting me make you cum. Hard."

The redness spread across the polar bear's cheeks grew deeper as she joined Kio on her bed, and as the fox shifted to the far side of the bed so that she could roll over and settle upon her back, heads propped up by a cosy pile of pillows, an undeniably eager shiver ran through the powerful female's figure. She may have been demanding of her lovers, pushing them to give the absolute best they could and punishing them when they didn't. But she never went to bed with anyone she didn't feel at least had potential, and whom she was willing to succeed.

Emma watched, blushing and smiling, as Kio crawled on all fours down between her legs. She let a deep, rumbling growl of approval loose as he rubbed her thighs gently with his hands, then knelt down to kiss at the white furred flesh tenderly. His teeth nipped her right inner thigh, and she gasped sharply. Biting down on her bottom lip, a louder growl accompanied by a more urgent, lustful shudder surged through the polar bear. She heard Kio growl back in approval, and moaned to him softly.

"Don't celebrate yet. J-just coz I'm turned on, doesn't mean a thing if you can't follow through."

Kio said nothing, but just moments later Emma felt warm breath against the flesh of her pussy and two warm hands pushing her thighs apart to grant the fox's face easier access. She braced herself, closing her eyes and breathing deep, her already ample breasts rising and falling like cresting waves on a foaming, stormy sea. His nose bumped against her crotch, and Emma sighed happily as his tongue teased ever so gently between her lips before withdrawing. It soon returned for a more lengthy exploratory excursion, tasting rather than teasing, wandering as far as its limits would permit. The polar bear shivered and trembled in excitement, gently gripping at the sheets beside her with one hand as the other moved to caress her firm, dark skinned nipples. She resisted the urge to grab the male's head and push it between her legs harder in encouragement. This was his test, and he had to find out what she liked and how she liked it on his own.

A long, lingering moan escaped Emma as the male's tongue withdrew after a little more time spent indulging and arousing, only to return with deliberate precision dragging its rough, damp surface over her clit. The polar bear couldn't exactly give the male points for originality on this front, after all she did have a rather large and prominent clitoris, but she sure as hell wasn't complaining. Her hips rose off the bed slightly as he tongued her swollen nub and she gave a soft cry as his lips pursed and closed around the rather firm, stiffened button, half licking at it, and half suckling like it was a nipple.

"D-don't stop..."

Kio grinned as he heard the polar bear moan those two pleading words. He wondered how many men would dare to stop in such a situation, regardless of their lover's size or species relative to them. Never mind dare. How many men would want to stop, or were most of his gender so concerned with their own orgasm that they'd leave a lover hanging just so they could stick their cock in and hump their way to their own rapture? Whatever the reason, Kio would have told Emma she had no reason to worry about him letting go of her clit before she'd cum... had he not been too busy suckling on the sensitive sweet spot to utter a single word of his own.

"Yes. Yes... Kio..."

Planting her feet firmly against the bed, Emma's hips rose from the sheets as she found herself uncontrollably humping at her lover's face. His arms were wrapped around her thighs, locking him in position and carrying his upper body along with the polar bear regardless of how she moved. Still though, her hands did fall to the back of his head now. She couldn't help herself. Couldn't risk letting him slip away, not when she was so close. He licked. Slurped. Tasted and sucked on her clit. He tended to that swollen cluster of joyously sensitive nerves like his life, not just his date, depended on it. And less than thirty seconds later, reaped his well earned reward.

"O-oohhh... ohhh god... h-ahhhh, yes..."

The rocking of Emma's hips surged into a series of sharp bucks and straining shudders as her toes curled down into the bedding and her inner muscles began to clench and squeeze in orgasmic overload. She huffed and moaned loudly, and though it was probably unnecessary given the way he was still nuzzling and licking at her throughout, she held the male's face to her pussy right up until the pleasure began to fade and her peak reached its natural end.

Sinking back down to the bed with a contented sigh, Emma giggled as just seconds later Kio's flushed and beaming face appeared from between her legs, his muzzle slightly damp and his eyes wide with hopeful glee. She smiled down at him, and murmured softly.

"Not bad. A perfectly adequate orgasm."

His already wide eyes bulged, and his already rosy cheeks burned crimson.

"W-what?"

Emma smirked and rolled her eyes. Even the best of guys could be a little full of themselves when it came to their sexual prowess, and Kio was no exception.

"You made me cum, and that's very nice of you. But... c'mon, Kio. There are orgasms, and then there are orgasms. What you did, I could have done alone with one of my vibrators and been just as satisfied as I am now."

This was a test in itself. How a guy reacted when he was told that he wasn't operating at Emma's level of standard. Some people got really shy and flustered, and before long they were being asked to leave. Some were insulted and left of their own accord before Emma could ask them to. But the good ones, the ones that showed the most promise, acted just as Kio did in that moment.

"Can I try again? Would you like... I mean, could I make you cum again, Emma?"

The polar bear licked her lips, and playfully considered it for just a few seconds before glancing down over her ample breasts to the blue furred fox and nodding warmly.

"Be my guest. But remember Kio, I'm not looking for just any orgasm. I'm looking to be blown away."

To Emma's surprise though, Kio didn't take her words to heart by beginning to eat her out with even more voracious hunger. In fact he crawled out from between her legs, scrambled down off the polar bear's large double bed, and glanced around the bedroom before looking towards his lover with a bashful grin.

"Where do you keep your toys, Emma?"

Giggling happily at the male's initiative, something that most certainly did earn him points, the polar bear jerked a thumb towards the ottoman resting beneath the drawn drapes of the bedroom window. Kio darted over to it, opened it up, and let slip an unexpected, uncontrolled whimper of lust. Emma's cheeks flushed, and a few seconds later the fox laughed with delight.

"Damn, no wonder you've got high standards. Look at all these."

Emma tried not to look as Kio explored her toy chest, but it didn't take long at all before a soft growl and a rather adorable hiccup of bashful excitement rang out around the room and she felt the fox scrambling back in between her legs. It was only when she heard a loud, rather firm buzzing that she knew what he'd selected, and even before he'd touched her with it a rather loud groan escaped her lips.

"D-dammit, Kio..."

The fox giggled, looking up from between the polar bear's legs, waving the powerfully buzzing tip of the hitachi massager at her like an extension of his arm.

"What's wrong, did I pick better than you expected?"

Saying nothing, the polar bear shuddered as she considered just how right Kio was in his assessment. Of all the toys in her toy chest, all the dildos and vibrators and probes and feeldoes and harnesses and... well, she had a lot of toys, but of all of them, there were only two or three of which Emma had to ration her own use simply because of how hard they hit her. One was a curved, rather sleek little vibrator made for hitting the g-spot, and it was painfully good at it's job. One wasn't so much due to the intensity of the orgasms it provided, but the length of time it took to use; a canine dildo with a thick, inflatable knot that was ever so pleasing to use over the course of a long and self-satisfying evening. And then there was the toy in Kio's hand. The massager. The vibrator to end all vibrators.

It began to buzz louder as Kio turned it up. Emma stuffed a paw into her muzzle, biting down gently on her own flesh. She squeezed her eyes tight shut, clawed at the bedding with her free hand, and tensed in desperate anticipation of what was about to not just strike her, but run her down like a freight train.

"A-aahhhhh.... w-wha... Kio?"

Emma cried out, a muffled roar escaping into her paw as she felt something warm make contact and begin rubbing at her clit once more. After just a second though she realised that it wasn't the toy, and despite hearing its powerful vibrations continuing close by, what she was feeling was undeniably one of the fox's thumb-pads rubbing at her swollen and sensitive button. She raised her head, and glared down at the fox. She'd had some cheap teases from lovers in the past, usually when they wanted her to get them off rather than the other way around. But this wasn't what the fox had in mind. She could see it from the look in his eyes. This wasn't a cheap tease. This was a very well thought out, exciting, and devious tease.

"I was thinking..."

Kio was trying not to laugh at the look on the polar bear's face. A mixture of relief, dismay, and sheer embarrassment at having got so worked up over nothing, all combined with a wry smile of admiration.

"...you're saying I need to figure out what you want on my own to prove my worth. But isn't part of being a good lover listening to your lover's requests and helping them get what they want?"

Emma smiled, cocking an eyebrow at the fox.

"So, what? You're gonna blackmail me? Only pleasure me when I tell you how I want to be pleasured? Because Kio, you're not the first to try that. And the other guys, I dumped their asses on the pavement so fast they barely had time t-ooohhhhhhhh! Ohhhh god! Fuck!"

The polar bear's muzzle fell wide open, and with no paw in her muzzle to muffle her she roared with bestial bliss as Kio continued to grin innocently even as he pressed the powerfully vibrating magic wand firmly against Emma's swollen and sensitive clitoris. He held it there, hammering the larger female with pleasure even as he called out to her, licking his lips as he had to yell at the top of his lungs to make himself heard through her continual cries.

"When you tell me how you want to be pleasured, that's when I'll stop. Until then, you get this."

Emma's whole body convulsed as Kio turned up the power yet again. How the hell the toy wasn't already at maximum given how it was making her feel, Emma didn't know. But the fact remained it was still getting more and more violent in its vibration against her clit, and driving her ever more wild with almost painfully intense ecstasy.

"Fuck! F-fuck, Kio!. W-what if... ohhh god... what if this is what I want? Oohh god... g-god yes!"

The fox smirked. Emma may have been a great teacher, but he was a good student. He could learn, not just what he was being told, but learn how to read the polar bear in her pleasure. If this was what she wanted, she wouldn't be proud or vindictive enough to tease and try and convince him that he was wrong. She'd simply relish what was happening, and let Kio know of his victory after he had made her cum until she was aching all over.

"If you want it, you've got it. So... either tell me how I can make you cum so hard you'll beg me to stay over, or just get on with it, and cum for me."

A strangled wail escaped the polar bear as she almost did exactly as Kio commanded. Her hips jerked violently, and a brief spray of ejaculate hit the fox almost perfectly across his bare crotch and rigid erection. She heard Kio yelp in pleasure and lust, but still not nearly as loud as her own cries of euphoria.

"Oh god. Ohhh fuck, o-okay! Stop. S-stop and I'll tell you..."

The fox growled happily at Emma's frantic plea of surrender, and twisted the dial on the massager sharply to one side. Rather than turning it off though, he turned it to full power.

"No deal. You tell me, and maybe I turn it off. Maybe I turn it down. Maybe I keep going till you cum once anyway. My job tonight is to drive you crazy, and that sounds like exactly what I'm doing."

Emma's eyes bulged. She had no way out. If she refused to tell Kio what he wanted to hear she'd been driven crazy with pleasure. If she told him, she'd be driven even more crazy than was already the case.

And... for some reason, some dumb, unfathomable reason, right up to that very second, the polar bear had considered that a bad thing. The game had overwhelmed the actual purpose of the game in her mind, which was to make sure that Kio was a good enough lover to be worthy of her time. And given how she was feeling right now? How quickly he'd learned, adapted, and managed to drive her wild? The fox wasn't just a candidate. He was top of the damn class.

"F-Fist me!"

The polar bear's neighbours might be able to hear her. Anyone passing by on the Tundratown streets beyond almost certainly would have too. But Emma didn't care. Not about that, nor about anything other than telling Kio exactly what he wanted to hear, and having him make it happen for her.

"Not your tongue. Not your fingers. Not a t-toy... not even your cock. Please, Kio. Please , oh god... I... I want you to fist me. Now!"

The fox's cheeks flushed and his eyes widened in surprise, genuinely not having considered that option out of the countless ways he could have pleasured the polar bear. Now that she had mentioned it though, it wasn't just all he could think about, it was all he too craved. A bellowing grunt of anguish escaped the female as in an instant Kio withdrew the still vibrating toy from her clit, only to be replaced by a shriek of unbound ecstasy, and the feeling of the hand that had previously been clutching at the toy now balled into a tight fist and pressing its way into the woman who was well over four times the size of the fox.

"_ Yes _!"

Emma had thicker toys than Kio's arm, but that didn't matter. It wasn't about the size. It wasn't about the thickness. It was about the intimacy, the personal nature of having someone in your bed whom you trusted to stuff the best part of an entire limb inside you, and who trusted you enough to stuff an entire limb inside. Then of course there was the fact that an arm, unlike a toy, could feel. It could explore purposefully. It could react to the polar bear's own reactions. And it was warm, and soft, and with all the fox's soft fur it had a texture like nothing else on this earth.

" Yes , Kio. D-don't hold back. Give me everything! Harder. _ Harder _!"

The fox obeyed with gleeful exuberance. For the brief period his hand had been lost inside the wet heat of Emma's body, he had been thrusting in and out of her in a slow but firm pattern up to just a few inches above his wrist. Now though he not only picked up speed, but began to push much deeper. Much, much deeper. The polar bear's cry as he plunged into her up to the elbow was one of such high pitched, shrieking, carnal savagery that it sent a fearful tremor running down Kio's spine. It was only when she followed it up with a roar of the male's name and a vocalisation of her sheer joy...

"_Kio! Ohhhh fuck yes!"

...that he knew for sure that he hadn't gone too far. That this incredible woman could not only handle his entire forearm, but seemed to be made to handle it.

Beyond that point, Kio really did hold nothing back. Why should he have? He was driving Emma crazy, and that was apparently exactly what she wanted from a lover. Not someone just to please her, not even someone to satisfy her. She wanted someone who could break her with the intensity of pleasure they provided. And indeed it was that thought, accompanying the rapid and loudly slurping pistoning of his arm in and out of the polar bear's pussy, that heralded the end for Emma. The end, by way of the most devilishly wonderful idea from Kio.

As he fisted the beautiful, powerful figure before him with all the violence and ferocity he could muster, watching her flail and listening to her scream from where she lay joyously impaled upon him, Kio reached down with his free hand and grasped at the still buzzing magic wand resting upon the sheets close by. Emma was far too busy, far too caught up in trying to breath between roars and trying to hold back long enough for just a little more pleasure, just a little more intense and overwhelming sensation from her lover to bombard her trembling body, to notice as Kio wielded the powerful vibrator once more. She was already lost in a world of ecstasy, with no concept that it could possibly get better. Possibly feel any more intense._

And yet.

Kio's arm didn't break its pace once as it slurped in and out of the polar bear, and thus it came entirely out of nowhere when on one randomly chosen inward stroke of his clenched fist, the massager made its triumphant return to Emma's urgently throbbing clitoris.

A broken, desperate sob was the closest way to describing the sound that erupted from the polar bear in that moment, but even that did it no justice. This wasn't a sound of sorrow after all, nor any manner of extreme emotion. It was simply that the pleasure was so overwhelming, so cataclysmically volatile, that Emma knew no other way to express it. All she could do was howl, shriek, sob, and thrash. All she could do was kick and flail and roar. All she could do was squeal and shudder and writhe.

And of course, cum.

"Kio! _K-Kio! K-Ki...Ki-ooohhhhhhhhhhgod yesssss _!"

All the polar bear could do as she was cast headlong into a maelstrom of heavenly rapture, was scream, sob, squeeze and squirt around the fox's whole forearm as she came... and came... and came for what felt like an eternity. Her juices flooded the bedding beneath her. They splashed out across Kio's torso in a hot torrent, and as her clutching walls were caressed by the insistent, urgent and continual thrusting of his forearm, it felt to Kio like there was barely a portion of his body that didn't catch at least a few drops of the intoxicatingly erotic spray.

And then... just when she stopped shrieking and shaking like a leaf in a hurricane, just when Kio was thinking about releasing her from this joyous torment, retracting the vibrator and slowing his pace, she grunted wildly with what little breath she possessed at that given moment. Two words. Two familiar, but wholly unexpected words at that moment in time.

"Don't... s-stop..."

Kio's eyes widened, but only for a moment. He looked up at her, at the polar bear's beautiful flushed face staring down at him, eyes half lidded and mouth half open. She looked so embarrassed to be asking that of him now, after all he had just seen and felt her experiencing, but also so overwhelmed she couldn't help but ask it. How long had it been? How many lovers had actually gotten this far, gotten to this point with her, and made her feel so good that she was willing to show a little greed and selfish hunger.

The fox chuckled, nodded, and murmured to her over the hum of the toy.

"Don't worry, Emma. I won't stop until you make me."

He had passed her test, but that was only the beginning. Because the kind of man who could pass Emma's test... they wouldn't want to stop there. Wouldn't want to settle for just succeeding any more than the polar bear would let them.

It would be worth it though. Not just to see her so happy and satisfied. Worth it whether Kio had to keep pleasing the polar bear for another hour, two hours, or all night long, because of the type of person that Emma was.

Thanks to the polar bear's slightly overzealous work ethic, and her desire to push those around her to greatness, she demanded a lot of those around her. But only because she was willing to give it back. To reward greatness with loyalty, compassion, friendship, and so much more in return. So... Kio didn't care if he made Emma cum once more, twice, or a dozen more times as she put him through his paces as her lover, and he put her through her own as his.

Because when the time came for Emma to return the favour? Kio knew that she wouldn't just repay him in full, but put him through the paces of what he could handle in return... to every bit as devastatingly pleasant a result.

By Jeeves

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