Private Lessons

Story by Mahiri Morahan on SoFurry

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#151 of Commissions

Commission for Factanonverba!

Getting to work as a teaching assistant under one of his academic idols is a great opportunity for Tristan. It just so happens the professor is also a massive hyena that makes even the big dog look tiny. He's been doing his best to keep it professional. But what if she makes the first move?

Student/Professor smut featuring: rough rough sex, lots of cum, sweat, oral, anal, and explicit scientific discussions.


On the one hand, he got his own office. On the other, 'office' was a very generous word for what essentially amounted to a closet with a desk in it. Tristan found himself elbowing the walls sometimes while he did his teaching assistant work, and had to squirm just to get out of his chair without knocking the whole desk over. The big doberman's muscular frame was hardly meant for such a small space. With the one little window it felt like a prison cell, but despite all there was to complain about, he never spoke a single word of it to any of his supervisors. He was just happy to be working in such a well-respected university so shortly after finishing his degree. That, and one of the professors he was working for scared the living hell out of him.

Well, it wasn't mortal fear or anything. More just intimidation. He was pretty sure he wasn't the only one who found her particularly imposing. It was difficult to keep his cool when he was around a living legend, a celebrity among the science-minded, and an absolute genius of a woman any way you looked at it. Maybe nobody on the street knew who she was, but he did, long before he'd ever met her in person. He wouldn't admit it to her for fear of embarrassment, but he'd read all her books obsessively, watched her lectures online, and generally admired her from afar for quite some time. To actually be speaking and working with her was one of the most exciting and nerve-wracking experiences of his entire life. And that was just her brain. Her body was another story.

The fact that she was an absolute titan, a towering, muscular, almost impossible huge monster of a hyena really didn't help with the process of keeping calm around her. Her biceps alone were the size of his head, and for all his size, standing next to her made him look like nothing more than a toy, like a little action figure or a doll compared to the hulking beast of a professor. She wasn't just big, she was a scientific oddity, a giant well beyond any of the usual limits, and yet she never seemed hindered by it. Watching her move was like observing a deadly predator in the wild. She was balanced, coordinated, her every move calculated. She might easily have been thrice his weight but she never seemed burdened by her own size. That she could be so gifted in both body and mind simply wasn't fair.

So far it had been strictly professional, and they hadn't found much time for conversation. He was just finishing grading the recent batch of papers and prying himself out of his little office to make his way down the hall to hers. A little knock on her door, and he was holding his breath. It wasn't even a conscious thing. He always tensed up when he was around her, as if by instinct. Sure, she could probably break him in half over her knee if she was so inclined, but that wasn't the reason. It was more a matter of being around a mind that knew so much more than him. He felt as if she could mentally pick him apart on a whim, and expose all his weaknesses in thinking and the gaps in his knowledge. Not that she would, but she could. Working under her made him feel like any day now someone was going to figure out he wasn't supposed to be there.

"Come in," came her gruff voice. Between her bulky shape, tightly tied braids and her choice of suits, she made a certain masculine impression, but her bust was never out of sight. The sheer effort he put into not looking was valiant.

He shuffled his papers around a bit, gave his lip a little nibble, and finally breached his way into that spacious office, letting the light of the hall fall over the hunched hyena. She had a custom-built desk and chair for someone of her magnitude, but that didn't help her posture when she was leaning down close over her little computer, swiftly typing away. Her full-sized laptop looked more like a tablet compared to her. She didn't look at him right away, finishing up what she was working on and then taking a moment to read it over. Only then did she direct her chocolatey gaze his way. He thought he saw a little smile, but it was hard to tell.

"Afternoon, Tristan. Done with the lab reports?"

"Yeah, here you go, Professor." He carefully set them down on the corner of her desk, trying to think of some further comment just for the sake of talking. "They did some good work on this one."

"That's because you're doing a great job teaching them. I'm very impressed with the results I'm seeing. Plus, they speak very well of you."

"Oh." He didn't mean to sound so flabbergasted. It was just that the praise hit him so unexpectedly that she might as well have just clubbed him for how stunned it left him. What, she wasn't even going to give him a warning before she went and filled him with all sorts of warm, happy feelings? "I'm, um, glad to hear that."

The professor planted her elbows on her desk and pressed her fingertips together. Again he thought he saw that little smirk, but it was subtle.

"You are allowed to relax around here, you know. We're all very happy to have your help."

"Oh yeah." For some reason, he said it as if he'd just been reminded such a thing was even possible. "I'll try, Professor."

"Good. See you on Monday, Tristan."

She gave him a nod, and he quickly turned tail and left so as not to waste any more of her time. There was a part of him that wanted to explain himself, and tell her that it wasn't the job or the other professors that were getting him so uptight. It was only her. But maybe she knew that already. He just hoped he hadn't made too much of a fool of himself, or seemed ungrateful, or awkward, or worst of all, that he didn't value her feedback. If he could just tell her how much he admired her, for everything she brought to the field, without making it weird, everything would have been so much easier. Ah, hell with it. He was starting to feel like he needed a drink. It wasn't like he had many other Friday night plans.

The student pub was a decent place, as far as loud rooms built for the purpose of consuming alcohol went. He took a cursory glance around and didn't see anyone he knew. They were all broken off into their own groups, chatting at various volume levels depending on how many empty pitchers they had on the table. All he wanted was something good and stiff to help him come down from all the tension he was carrying in his chest. He couldn't help but feel like he was going to be fired at any moment. His phone would buzz, he'd have an email or a voicemail, and that would be it. Why exactly he felt that, he couldn't say, but anxiety was anxiety. With a resounding groan, he plopped himself down on a stool and gave a nod towards the bartender.

"Something just ... let's say whiskey, I guess. On the rocks." He had hoped to sound more confident, like a cool guy who knew exactly what he was going to drink, but he was too preoccupied for that. At least the bartender didn't ask him for a brand name, instead pouring him a tall glass of a pleasant golden brown.

He was just about to take his first sip when something struck him on the back with roughly the force of a star exploding. Give or take. He somehow managed to avoid spilling his drink, and quickly whirled to see what on earth had assaulted him like that. That left him immediately staring at a midriff, covered by a buttoned top. A glance up left him confronted by an imposing bust, and beyond those fine breasts and exposed cleavage was a familiar face, wearing a grin he had never seen her show. That monster of a professor had somehow snuck up right behind him, and he was so caught up in his head static that he hadn't noticed her until she'd whacked him.

At first he didn't think it could have possibly been her. Maybe she had a sister? One who shared her propensity for being enormous but with the opposite personality. Her hair was down, with those lovely braids all unfurled and splayed over her shoulders. Her teeth were showing in a grin most unlike her usual stern, professional demeanour. And most of all, she was dressed in something a little less formal. It was still utterly professorly, with her loosened tie hanging down over her exposed cleavage and that sharp vest and shirt combo, but a little ... sexier than usual. He always knew he was attracted to her. But his eyes were all over her in seconds, completely out of his control. He had to look, had to take in every single detail, and he was soon compressing all his mental willpower into fighting down the urge to get turned on right that moment. Popping a boner just from a greeting was not the proper way of dealing with someone who was essentially his boss, even if they were in their off hours.

"Hey doggy," she boomed. Her voice had the usual resonant tones to it, but she sounded different. There was something raucous to her greeting, something playful in a way completely unlike how he'd always pictured her. "Were you just going to drink that alone on this fine Friday night?"

The whole approach was enough to throw him into silence. He looked up at her, which required him to lean all the way back on his stool, his back against the bar. That grin was so enticing. It was dangerous, sure. Those teeth were no joke. But she looked like so much manic fun at that moment that he couldn't help but grin back. A little wag of his tail, and he shrugged his shoulders, finding relief in knowing he could be totally open with her.

"Oh hey Professor. That was the plan, yeah. Maybe you have a better one?"

She reached down and grasped him on the shoulder. He could tell she was only putting a little of her strength into it, but his arm was already a bit numb.

"I had the same idea right up until I saw you. You wanna keep me company?"

The casualness to it all was throwing him for a loop. She might have been a little drunk. Could someone of her size even get drunk? It probably took a keg just to get her wobbling. Nonetheless, he couldn't think of a good excuse to wiggle his way out of such a nervous situation. So he just nodded his head and picked up his drink, listening to it clink as he carefully cradled it, lest she slap him on the back again.

"I'd like that. We haven't really had the chance to chat yet. If you want to chat, that is."

"If I want to - " She interrupted herself with an absolutely savage cackle. It was purely shrill, the complete opposite of her speaking voice, echoing out through the bar so sharply that every conversation stopped at once. Everyone was turning to look for the source of that maniacal sound, though as soon as they saw the professor they understood. It wasn't someone snapping into madness they were hearing. It was just an especially oversized hyena showing her amusement. "I'm sorry, Tristan. I don't mean to laugh at you. 'Yena thing. I just think it's really cute you'd think I'd invite you over to sit and silently drink with me. Yeah, of course we can talk. Come on."

She gave him a tug, and he felt the liquid in his glass trickling over his fingers. At least he managed to save most of it. He let her drag him by the sleeve, as if he had any choice, until they were at her own little private table. Nobody had dared swoop in to claim it while she was up. She had a pint of something so dark it was pretty much just black on the go, and she took a big frothy sip as soon as she settled her enormous frame down in a chair that strained beneath her weight. For all her size, she never seemed to lumber or stagger, moving with a predatory swiftness that left him feeling like he was nothing more than a gazelle roaming the savanna, vulnerable and delicious. Though when he looked at her, the warmth in her eyes was a welcome relief.

"So, Tristan, I'm going to take a guess about something. Let me know how I do."

"Okay!" He snapped to eager attention, making sure not to miss a word as he settled down on the opposite side of the table.

"I'm gonna say, and I'm just assuming, that I intimidate you. Just a little."

He blinked. His first instinct was to deny it, but he was practically shaking in her presence. Finally, he just slumped and confessed.

"Well ... yeah. It's not that you intimidate me so much as you scare the hell out of me, Professor. It's nothing against you, it's just -"

Another snicker escaped the hyena, sharp enough to cut him off. "You can call me Kijana, you know. I do have a first name like everyone else."

"It's just that, um, Kijana - I've read everything you've ever written. I saw your picture in my textbooks. You're one of the brightest minds in your field, if not the world, and I never thought I'd meet you, nevermind work for you, or sit here with you babbling about how cool you are ... and not to mention, you're a nine-foot-tall hyena."

She just gave him a slow, approving nod, wearing that big grin. She had the whitest teeth, he just then realized.

"A few inches short actually. Maybe someday. That's all very flattering and all, but hey. Loosen up, doggo. You're doing a great job at work, but we're not at work right now. How about we just forget about all that and be people for a while?"

"I mean, I can try." He gave a few rapid nods. "I'm ... not very good at people."

"Me neither! But I try. That's all we can do. Tell me about yourself, Tristan. Don't worry. This isn't a job interview. You're already well past that." She gave him an approving wink.

"I'm ..." he started, but he stalled hard. Everything he could think of sounded impossibly nerdy, so he just rolled with it. "I'm just some dog dork who wants to do a bunch of science."

"I'll drink to that." She raised her mug, which looked comical in her giant hand, and clinked it against his. He was surprised it didn't shatter. Then she was downing half the contents in a single swig, topping it all off with a wipe of her lips. "Here's to doing a shitload of science."

He almost flinched to hear her swear. Partly because she was always such a consummate professional at work, and partly because she just put so much force into her cursing. He wasn't going to lie to himself. Just seeing that rougher, cruder side of her was doing things to him. His chest was all fluttery, which it often was around her, but in a different way. He could sense how much he was staring, but he couldn't help it. She was just so fascinating to look at, and when she was wearing a top with the top buttons open, he was having a whole lot of trouble not glancing at her exposed cleavage every few seconds. It hardly seemed fair that someone of her massive heft and muscle could also be bestowed with such fine feminine curves, and such a generous bust. The rumours abounded that a master of chemicals like her might have partaken in a few chemicals herself to maintain such an impressive figure. But if that were true, she'd probably know what she was doing.

"I guess I don't really know where I'm going with things right now. I'm just doing my best," he admitted, on reflection.

"Hey, that's as good a start as any. You're smart and handsome. And you've got the heart. I can tell."

He blushed hard to hear her call him handsome, though he might have been even more elated just to hear her call him smart. A great rush of fanboyism welled up in his chest and came pouring out all at once in that moment, and he found himself blurting out a question he'd been pondering for weeks.

"I don't mean to get into this right now, but I've been trying to figure this out for weeks. It's the idea of the Zhukovsky transform. My understanding is that it turns circles into ellipses. But if that's true, then how do you use it to construct a Zhukovsky airfoil?"

"What a nerd," she joked, and gave him a wink. Then her whole demeanour shifted, as she straightened up, steadied her tone, and slipped into an explanation that had him rapt with attention. "So, here's the deal. In order to form the airfoil, you first need to move the center of the circle off the origin, then you need to select the transformation parameter just so in order to form the trailing edge cusp."

"Oh. Wait. No, but .. I ... I thought." He stopped to scratch his head, furrowing his brow. A wave of embarrassment came over him that he hadn't figured it out himself yet. She probably thought he was such an amateur. "It's really that simple?"

"I wouldn't call it simple. No need to get flustered, cute as it is. I'll send you one of my papers."

There she went with the compliments again. Handsome was one thing. But cute. He was used to being the biggest one in the room in most situations, and there she was, towering over him, looking like she could have dribbled him like a basketball, or used him for a towel. That last thought put a very distinct visual in his head, throwing off his whole train of thought. He was staring again. For a terrifying moment, he met her eyes, and found her staring right back, catching him in the act. It was like she was forcefully hypnotizing him, keeping him from looking away, revealing all his secrets at once. He liked to think he was far past any such ancient instinctual canine pack instincts, but getting trapped in her gaze brought them all right back. She wasn't even a dog herself, but the sheerly dominant aura surrounding her made him want to follow and obey her like she was his alpha. It felt like an entire age had passed before she spoke again.

"Honestly, I'll be blunt with you, Tristan." The seriousness of her tone put a great sinking feeling in his chest. He felt like a scolded pup. "You could really stand to ease up for a while. And drinking is nice and all, but it's no substitute for really unwinding."

She leaned in over the table, causing him to naturally retreat, straightening up as if he was worried about her biting his face off. Her voice dropped even lower, though she was far from whispering. Other people were definitely going to hear her.

"You wanna come up to my office?"

He let that hover in the air like a cloud between them, blinking at her, biting his lip. If this was all supposed to help him relax, it wasn't working. His muscles were so tense he felt like he might have pulled something from nervousness alone.

"Do you mean for, like ..."

"Yeah. For like." Then she was grinning again, running her tongue along her fearsome teeth, giving them a bit of extra glisten so that savage smirk illuminating her face like she was a jack-o-lantern. "Come on. I see the looks. I don't mind at all, you know. I think you're hot, too."

"Oh!" he exclaimed, far too loudly. That was all he had for the moment.

"I mean. Some people get pretty uptight about the idea of me fucking my students. But they always seem to come lusting after me first. And then they definitely don't get bonus marks for blowjobs. That's just for fun. I'm here to teach."

He could hardly believe how casually she was saying it all. She didn't care who heard her. Why should she? He was glancing back and forth, just trying to see if anyone was looking their way, but everyone was too busy drinking and chatting. Only after a good scan of the room did he finally returned his gaze to her, trying not to lose himself in the gleam of her grin. Just looking her over, knowing that she wanted him, that he might actually get a chance to get to know her better than professionally, that was enough to ensure he was bulging, throbbing, going from zero to one hundred percent aroused all in a few seconds.

"Well ... your office?" He swallowed, and then did his best to make a joke. "You're not going to kill me, are you?"

"You're a sturdy dog. I'll try not to." A wink, and she stood up. "Meet me up there when you're done. I'll wait."

With that, she was off. He got to watch her rising to her feet, becoming the tower that she was, moving through the crowd as she left. Her tail had a bit of a swish to it, that fluffy appendage always such a fine complement to her thick and shapely ass - one of the only soft parts of her, if still taut and toned. She wasn't wagging, but she was active enough to let him know she was excited. It wasn't just a one-sided thing. He wasn't the only horny one. Leaving without him just made it seem all the more dramatic, though he wasn't far behind. Slugging back his drink, he stood up, feeling mild intoxication working through, giving him a little boost of confidence and recklessness that he needed to push on and leave the bar. The stairs had never felt so loud, echoing beneath his paws with every step as he made his way right back up to where he normally worked. The halls were so quiet after hours, at least once he got away from the bustle of the pub. He felt like he was in grade school again, getting sent to the principal's office, a strange sense of guilt welling up within him. This was probably against some rule of his employment. But he didn't care. This time, he didn't knock first.

Kijana was sitting on her desk. Her top was already unbuttoned, leaving a scandalous amount of cleavage on display. He carefully crept in as if he were a thief, closing the door behind him as gently as he could. She was still taller than him, even sitting down. When he hesitated, she waved him over insistently, and he went fumbling forward, hardly knowing what to do with his hands, or any other part of his body. He ended up stumbling into her, clumsily falling into her embrace, feeling her wickedly powerful arms wrapping him up and keeping him there. The muscle beneath her spotty fur was incredible. He wanted to run his fingers over all those details, to feel and admire, but he was nearly paralyzed. It wasn't through any particular force of her own. She was holding him tight, but not crushing him. He simply couldn't function, his high-strung mind short-circuited by the sheer relief of snuggling into a warm, strong body. A little pat on the back of his head directed his muzzle right between her breasts, where he stayed wedged for a while, lightly sniffing her chocolate chip cookie coloured fur.

"Unnngh ..." came his grunt, as he lost himself in that embrace. Her touch, her scent, her warmth, it was all making him feel so happy, so calm and cared for. And horny, that too.

"Yeah, sounds about what I expected. I knew you needed this kind of thing. It's been a while, hasn't it? Not that I'm judging. I'm pretty pent up, myself. Honestly, I should warn you."

She leaned in close, her breath hot enough on his face to make him sweat.

"Once I get going, I get a little crazy. Bad habits. Lots of instinct going through me. You're ready, right?"

Tristan didn't answer. He was trying not to whimper. A tip of his head, and he was licking at her breasts, getting at as much bare fur as he could, lapping over some of the fabric of her bra while he was at it. Such a lacy garment was surprising on her huge, powerful body, but it served to support her ample bust. Those fine hyena tits were plump and soft, in contrast to the rest of her, and there was so much to love. When he heard what sounded like an approving grunt, he just went for it. He hadn't been in her office for 30 seconds and he was already groping her boobs, pressing deep into each with his fingers, licking them from the sides. He just wanted to hold and massage her entire body, to give her every last detail the attention it deserved, and to listen to those gentle, vibrating snickers all the while. He hardly spoke hyena, but the low chuckle emanating from her throat sounded like approval, even pleasure to him.

A shrug of her shoulders, and she was nearly topless, left only in a bra she was working to loose while he tended to her tits. They were beyond words for a while. He was letting those whimpers out, barely able to contain himself at the sheer delight in getting to touch her gorgeous body. She just snickered at him, though it definitely wasn't meant as any sort of derogatory statement to his performance. That general vibrating excitement betrayed how she felt, compared to how steady she was otherwise. He could hardly believe what he was seeing, soon enough. She tossed her bra and sat there totally topless on her thankfully sturdy desk. He hardly knew what possessed him at that moment. One look at the dark flesh of her exposed nipples and he picked one and placed his lips upon that soft nub, feeling it firm as he started suckling. It was the best way he could think of to properly show her how much he admired her, body and mind. But mostly body, at the moment.

She held him by the shoulders in a commanding but permissive grip, allowing him free movement but making sure he didn't pull back while he tended to her tits. Soon what began as admiring and pleasuring her evolved into outright worshipping her. He didn't care if he was drooling on her. That was just a canine compliment to her scent and taste. He licked over that spotty fur in slow, deep drags, making sure to get every inch, every detail on his tongue, savouring in the rich flavour. Warm, masculine, smooth, and with just a hint of the feminine to her overall. He could have bathed her with his tongue all evening, all night, if she wanted him to. All she needed to do was ask. The slightest touch, and he followed her guidance, sinking down when she so much as placed a palm atop his head. He was between her thighs in moments, slipping southward with his tongue glazing along her belly. His slurps slopped between the divots of her abdominals, leaving streaked praise in the form of saliva between every well-carved muscle. He didn't have to kneel to get near that bulge, simply bending down a bit, wagging his nub madly as he got close and close to the lewd outline of her firming cock.

Everyone had seen that bulge. She might have dressed modestly and professionally, but she would have had to carry a pillow around just to conceal such an impressive shape. And that was when she was completely relaxed, not aroused in the slightest. He knew it was going to be big. But he really hadn't been picturing it properly. It wasn't just long, it was thick, pushing out from her pants as he nervously unbuttoned them, working down with shaky hands until he was confronted by the spire of her dick pushing forth and exposed. He caught her scent and he immediately knew he needed more. She had a heavy musk the likes of which was so perfectly refined and pheromonal. It was striking, overwhelming even, but in all the best of ways. One breath and his senses were filled by her hot hyena scent, and he was diving in to stuff his nose right into a tuft of fur at her groin, inhaling as much of her essence as he possibly could all in one go. Her rumbling voice only encouraged him to keep going.

"Good doggy," she teased, rubbing him between the ears. "I've seen that look before. The one you've got shimmering in your eyes. You need someone who wants you. Someone who will take care of everything you've got all pent up inside. Lick."

That last word came sharply, as if barked. He obeyed immediately, before he even had time for it to register that she was giving him an order. It was instinct. Just like that, and he was working up and down her dick, slathering it in dobie saliva, kissing the broad tip before making his slippery way back down. Her balls had such a generous bounce to them, twitching beneath his tongue as he massaged them back and forth, delighting in the wobble. He could already feel them tensing, even churning while he worshipped them. One of them was like stuffing a jawbreaker in his mouth, keeping him from swallowing while he sucked on it, letting its girth stuff his cheeks as he sloppily kneaded it and bathed it. Then he was onto the other, delighted in the taste of them, letting it fuel his lust and get him close to blowing a load in his pants. Just licking her nuts was something near orgasmic. He had to have more.

Listening to her grunt in pleasure while he slipped his lips down her cock was all the reward he needed. She'd already praised him once that day. Hearing her breathing grow briefly short, and her give him a thunderous growl that sounded like a motorcycle starting up was an even better compliment than anything she could have said. He wanted to go all the way down, to swallow every single inch she had to offer, but his body had limits. Once he started pushing her fat dick into his throat, he had to stop and brace himself. She was already straining his jaw just to fit her inside. He squirmed a bit, wiggling as he sucked on her, playing his tongue over the bulging veins decorating that dark black spire, finding a way to breathe and pleasure her all at once. Such a thing might not have been physically possible, but he wasn't going to let that cool his ambition.

He fully expected to continue on, taking things at his own pace, until he made her cum in his mouth. Such an assumption was wildly underestimating just how horny she was for him. He felt her fingers curling, pressing into his skull. For just half a second he considered his own morality, wondering if she was about to crush his head with her sheer might. He had a good run. She did no such thing, though he hardly felt any comfort for that given she was launching to her feet, letting him dangle from her cock as she rose up like a titan above him. Her grip shifted to the back of his head, and she wasn't being gentle anymore. She let her pants slowly descend along her muscled thighs, revealing more of her spotty form as she clutched his head between both of her hands, framing him, keeping him exactly where he was. He needed something to hold onto, and so he reached up and took a good hold of those spotty cheeks, gripping her ass for support. While also massaging that broad, shapely booty. The tension of the moment kept him poised, not even daring to keep sucking while he waited for her commands, but they never came. She wasn't ordering him around anymore. She was simply taking him.

Her wrenching grip made him feel like he was being attacked. He wasn't ready. He never could have been. The best he could manage was sucking in a deep breath while he still could, and bracing himself, clinging to her hips meekly as she arched her back, flexed taut, and started stuffing her cock straight down his gullet with hardly a shred of mercy. His GLURK of shock was as close as he got to any sort of statement, and he set to rapidly gulping down the flow of pre that was shooting towards his stomach. It was thick, hot, and satisfying to chug down, even if the volume was concerning. Just how much could she put out? Every twitch of her dick between his lips was another swallow's worth. At first she was simply grinding back and forth over his outstretched tongue, making his muzzle her own, sliding back and forth while he held on for dear life, but she was only getting started. He thought maybe she'd have at least some moderation, that she wouldn't go too far and risk choking him out on their very first intimate time together. He was wrong.

It wasn't his first time sucking a cock, but it might as well have been. He felt as helpless and clueless as if he had zero experience, his eyes watering as he got his nose buried in her crotch tuft, huffing pure hyena scent while she resoundingly facefucked him as if he were a toy. She plunged deep, smacked him with her balls, let the impact shake right through his entire body. He might have been more durable than the average person, but he felt the strain, as if he might shatter to pierces every time she went pounding forth between his lips. With each stroke, his throat bulged with the full size of that massive hyena cock, leaving him shaking, swallowing, doing his very best to keep from passing out while he listened to the steady thump thump of her pounding him like a bitch. He could barely breathe, could barely swallow, and his ears were ringing from those deafening cackles, but her taste was worth it. She was grinding it into his tongue, filling his belly with that welcome warmth, and he was still wagging his nub the whole time no matter how close he was to breaking.

Her laughter was getting louder. She sounded like a demon, roaring with unhinged malevolence when she was just an excited, horny hyena. He felt it peak to an ear-ringing crescendo as the professor bottomed out in his throat. She held herself there, throbbing madly, letting him feel the veins bulging out against his constricting gullet, twitching from tip to clenching balls, before she finally blew her load directly inside of him. No matter how hard he tried to chug it all down in one go, he felt it welling up in his throat, overflowing with that richly creamy taste that threatened to dull his senses to numbness. She was heaven on his tongue, a sinful indulgence that he did his best to swallow down. It wasn't drooling out so much as it was shooting from between his lips, the pressure of her pumping ensuring that he was soaked, his shirt marked with her scent while the excess ran down his chest and her thick thighs. He was clinging to her more weakly by the moment as she unloaded in his mouth, leaving him bulging, sloshing, shaking, and finally sinking down as he felt himself daydreaming in the swirling pleasure. It wasn't until she pulled out that he realized it wasn't intoxication so much as it was just the lack of air.

Of all the ways for his evening to go, he did not expect to be on his hands and knees in his professor's office, coughing up the excess cum that he couldn't swallow, desperately gasping and choking while her taste overrode all else. She stroked her dick and jizzed on his back while he recovered, though she didn't give him the chance to fully catch his breath before she was upon him once more. One hand beneath his chin had him straightening up fast, kneeling before her, getting a good look at her hand slipping up and down her dick before all went white and she painted his face with cum. He felt as if a dam had burst in his face, recoiling as if shot, tumbling down until he thudded on his back hard enough to briefly knock the wind out of him. That didn't stop her from finishing her climax on his chest, ensuring his nice shirt was hardly more than a sodden rag tightly clinging to his muscles, turned translucent by the fresh load of hyena seed that had been poured over him as if from a bucket. He didn't even bother to move for a while.

Tristan felt like all his internal warning lights were going off at once. He kept his eyes closed and for a while he was pretty sure he was just going to pass out. It was only through plenty of willpower that he managed to wipe his face off and stare at the ceiling. He still wasn't getting up. His own cock was roughly two strokes away from blowing his load, throbbing with every gulp of hyena spunk he guzzled down, licking it from his muzzle and making sure he wasn't a moment without her taste deeply imbued into his senses. He wondered if he'd ever taste anything else again. It wasn't like there could be much better. He was practically gargling her cum as he remained sprawled there, not even looking to see what she was doing at first. Only when she moved did he get a good look at her. She was fully naked by then, her dick as hard as ever, the grip of her whole big fist barely concealing a third of it. Her body was hunched like a werewolf, looming and hulking, ready to pounce. When he got a good look at the snarl on her face, all fang and flashing fire in her eyes, he couldn't get out more than a simple exclamation.

"Holy shit!"

She sent him back to some old wolven instinct when she struck. He was up and in her arms as if weightless, then sailing through the air in what felt like some sort of wrestling move. He saw her desk coming, that firm, unforgiving surface the only thing ready to break his fall. Somehow neither it nor he shattered into a million pieces when she brought him down on it, leaving him flat on his back while she tore his clothes off of him. There was no saving them. They were a lost cause to her lustful fury, ripped from him and sent fluttering through the air like confetti. He found himself briefly mourning the loss, then wondering how he was going to get home wearing nothing more than torn rags, dripping in hyena cum. Such things were firmly pushed from his head when he saw her teeth, shining with saliva, inches from his face. She looked like she'd gone rabid, and he got a good look at the face-scrunching insanity that had taken over her face, clouding her intelligent features into a feral snarl while she folded him like a chair.

Tristan didn't actually know he could get his legs right up over his shoulders like that. It was surprisingly comfortable, even with such a vicious application of force. She could have broken him in half if he was less flexible. Instead, he was left to stare up at her while she drooled on him a bit, getting between his exposed thighs. He couldn't judge. He was drooling too. There were still a few scraps of fabric clinging to his body, though for all practical purposes he was naked, his knotted prick giving a lusty tremble as she finally touched it for the first time. He almost blew his load right then, his hips giving a sharp involuntary buck, a whimper escaping his throat. She squeezed him and stroked him a few times, but she ended up letting go before he could soar over the edge. He was left dripping, trembling, squirming in her grip as she took hold of his hips, digging her fingers deep into his ass. It wasn't that he'd never bottomed before, but that position, staring up at her, losing himself in the burning ferocity in her eyes, he felt fear beyond just nervousness. He still wasn't entirely convinced she wouldn't maul him half to death if he disappointed her. So he was just going to have to quit squirming so much, to breathe deep and do his best to relax and make himself the most fuckable doggy she could ever ask for.

A moment passed over him where he found himself reflecting on everything that had led up to that point. He had never seen dressed in anything but her finest, always tidy and well-groomedNow he hardly recognized her as she took him like a beast, transforming him into a panting, drooling slut for her cock as she dipped it between his cheeks and let the natural lube of that sloppy sucking off keep her sleek as she started pushing. He'd met horses who were smaller. That smooth shaft stretched him to his limit by the time she got the head inside. The rest was a belly-bulging endeavour that left him clenching down tight enough to actually halt her furious progress for a few seconds. She lunged for his face aggressively enough he flinched. She was a wild hyena, a pack leader making use of her omega, and all he could do was wrap his legs around her waist and hold on tight, squeezing around her muscular middle while she stuffed him full of dick and fucked him right there on her desk.

It might have been late, but there were still plenty of those academic types who refused a typical workday hanging around. So of course people were going to hear them. It didn't matter. She was giving a strange mix of screechy laughter and rumbling growls like a malfunctioning engine. He gave a few little barks, a few whimpers. Neither of them spoke a word. That side of them was resting, so to speak. Gone were the genius and her student. They were beasts in need of a good, rough fuck. She never got any less intimidating as she rutted him, pumping back and forth and leaving him clinging to the edges of the desk just to keep in place and let her drive deep, spanking his ass with those big fat nuts. But he was finding himself less afraid. Every brutal piston on her hips made the doggish smile on his face a little wider. She wanted him so badly she was ready to break him. He could feel the lust pounding beneath his tail, and he was left to admire her naked chocolate-chip body working and sweating on him, sprawled out on the very desk where she'd penned some of her greatest work. The fanboy in him wouldn't fade, even while she fucked him stupid.

All that knowledge, all those problems he'd been caught up considering for the past few months were leaving him at least for a time. None of it mattered. He didn't have to worry about grading or researching anything. He could just submit himself to pure sensation, to living as little more than an unthinking animal for a few more minutes. He wasn't going to last long at that rate. His body was already tensing up, already starting to rumble and shake in all the best of ways while he got mercilessly fucked by the hyena's full might, or something close to it. Just watching her at work was a sight worth marvelling over. He could see all those muscles flexing and bulging, those well-cut abs on full display as she worked to shove her cock deep inside him over and over. Somehow, he was taking the whole thing without hurting, left blazing hot as she massaged his prostate until he was pumping out pre thicker than his usual cumshots. Pent up might not have been the word for it. It wasn't like he hadn't been cumming recently - but apparently he hadn't been letting off enough. That was going to change.

It occurred to him maybe he ought to say something. She deserved to know just how good her dick felt, and how happy she was making him just for demolishing him like that. Rather than anything coherent, all that came out when he opened his mouth was an extended cry, a full-throated 'aaaaaahhh!' like he'd just been pushed down an elevator shaft. His body was doing strange things. That pounding pace drove him to something more than just orgasm. He was shuddering, squirming, feeling mild panic as something overtook him that felt almost like an attack. His every nerve was ablaze, his muscles all working in unison to make him the squirmiest happy doggy he could ever hope to be while she made him cum his brains out, leaving him totally blanking out as he clenched down on her cock. His eyes rolled back as he blasted himself with jizz, painting his bare chest and adding to the mess clinging to his features. He felt it landing on his tongue, milked out by her pounding strokes, and he didn't hesitate to swallow it down just to add to all the cream he'd already drank.

She filled him up with a lunge and a whoop, her cackles growing somehow even more rapid. It sounded like a whole pack was going at him at once, or at least encouraging her from the sidelines. That burst of warmth left him even more sweltering than before, leaving him giving the most pathetic of doggish cries as she stuffed him with her cum. He was overflowing, stretching, expanding, marvelling at the amount she could put out. Sure, she had a fat pair of nuts, but she came like a pair of horses unloading all at once inside him, until the cheeks of his ass were soaked with the jizz streaking over them. She let it all trickle down the edge of her desk as she pumped back and forth, schlorping loudly as she fucked him a little longer, making sure she'd milked them both about as close to dry as imaginable. He wasn't counting, but it felt like she was cumming inside him for a whole minute, prolonging his own orgasm a little longer, until his dick was flexing and spurting out the thinnest, most watery streaks possible, finally just dry-firing as those contractions ran through his body. They started in his prostate where her cock was mashed against his tender button, and spread all the way to his fingers, his toes, even to the tips of his flattened ears.

She panted like a monster. Every breath sounded filtered through her clenched teeth. He may have been dead. He wasn't sure yet. Everything was so blank that he felt like he'd been rebooted from scratch. He was Backup Tristan for a while, slowly remembering his faculties, blinking the cum away but with arms too numb to wipe it away. The taste was the first thing. Scent too. Other less important senses like hearing and vision took longer to come back fully. He'd been rocked, rattled, and he wasn't sure if he could get up. Maybe he didn't have to. Maybe he could just sleep right there on her desk. It was the weekend. She didn't have classes, or visitors, right? His eyes wavered open and closed again, catching blurred images of that grinning beast. It wasn't until she uncorked all the cum pent up inside him by pulling her cock out of him, leaving him shocked by how empty he suddenly felt while jizz poured onto the floor and ran down Kijana's thighs. She didn't even bother to move out of the way.

He was awoken from that near-coma by a kiss on the lips as if he were some sort of sleeping princess. His eyes shot open to feel her mouth against his. She was big enough compared to him that her muzzle just completely overtook his own, her tongue pushing past his wet lips, giving him a sloppy kiss that echoed through the room. Schlup schlup schlup went that overwhelming smooch as she lapped up some of the cum he hadn't quite managed to swallow yet, massaging across his tongue, nibbling on his lips. He gulped some of her saliva, bathing in her warm breath, letting her sweat roll down from her spots and onto him. She was a great, solid weighted blanket for the moment, keeping him from moving much at all. He felt just a little crushed, but he could breathe at least. Pushing at her chest did absolutely nothing. He might as well have been trying to move the entire planet.

"Mmm," came her voice. It was the closest she'd come to speaking for a while.

"Mmm," he responded, sucking on her tongue a little, though he was mostly getting his own overwhelmed by her plunges and her slurps.

A slick pop sent spit soaring as she pulled back from the kiss. She was still grinning, but at least it was a little gentler then. She didn't look like she was about to eat his face anymore. Maybe just some of it.

"There. You feel better, pup? Whimpering like that, it must have been ages since you got fucked right."

She was hardly saying it in a crude manner. There was something oddly supportive in her tone, as if she was concerned that nobody was pounding him like he needed. Despite all that aggression she'd shown him, he felt content to simmer in her presence, feeling an aura of safety coming over him. She'd protect him.

"I ... I don't," he began, and just flatly stopped. He was going to need a few more deep breaths before he could actually communicate with her, laying sprawled out and with his arms limply dangling down the sides of her desk. "I've never been fucked like that before."

He said it in awe and in thanks. His eyes went all wide and shimmery as he felt a weird rush of emotion welling up in his chest.

"Thank you, Kijana."

She snickered good-naturedly, finding the higher reaches of her natural calls. "And here I thought you were going to call me Professor again. Good boy. If you ever need more of that, you know where to find me. You just gotta loosen up sometimes if you're gonna get through all this learning. Got it?"

That last question came pointed, urgent. She wasn't advising him, she was demanding that he remembered to take it easy now and then.

"Got it," he said with a firm nod. "I, um. I'd love to do that some more. I've always had such a crush on you I never thought something like this would ever happen, and I just, it was so good, and ... god."

He knew he was babbling but he didn't care. Despite being covered in her cum, he was still shy to say anything lewd to her. He had to force the words out.

"Your cock was amazing ... I knew you'd be big. And I just ..." He couldn't keep the flirty tone up. Instead, he laughed. "It felt like you were trying to kill me for a while there. I'm not even complaining."

She gave a shrug, her grin getting a little broader just for a short time. Then she patted him on the head.

"Hey, just because I'm still a giant fucking hyena all these years later. I know what I need. Besides, didn't kill you, did I?"

He wiggled his legs a bit, still feeling the numbness going down them. "I don't think so, but I'm not sure if I can actually walk out of here. Not to mention what you did to my clothes!"

"Ah, you're fine. And don't worry. I've got some spares. I ruin a lot of clothes. XL good?"

Before answering her, he rolled over from the desk to land on his paws, testing whether he could actually stand up. His whole body was a river, dripping with sweat both his and hers, not to mention all the cum that was still leaking out of him. The room was spinning and he could feel his pulse in his skull. He might have needed a doctor. But for the moment, he was focused on taking a few wobbly steps and finding his balance, naked and probably bruised. He managed to to walk halfway across the room before something overcame him, leaving him feeling lightheaded and fluttery, like he was drifting away on a hot breeze, and with that he pitched over and passed the fuck out with a concerning thud.

He awoke on the floor, snuggled up with a pillow she'd apparently provided while he was unconscious. It smelled like her. The whole room did, really, and so did he. He wasn't getting that out of his fur anytime soon. A great blush came over him when he realized how obvious it was going to be for everyone around him. Students, faculty, and random passers-by, they were all going to know about his wild, raunchy night with his professor. His mind raced, considering the possibility of getting into trouble. Or worse, getting her into trouble. The faint clack of a keyboard alerted him to her presence, and when he rolled over her saw her feet beneath her desk, planted firmly while she quietly typed away on whatever it was she was working on. The warmth of her presence alone reassured him of all those doubts. If there was any trouble to be had for their fraternization, then she would fight it for him. She seemed like someone who could punch the mere concept of disciplinary action. With her on his side, he could conquer any challenge.

Well, aside from standing up anyway. That was an effort. He liked to imagine waking up after suck a perfectly brutal fuck session would leave him refreshed and renewed, as if he'd received a full-body massage and spa treatment. But instead, he was reminded of the fragility of his mortal shell as he staggered to his paws, sore and bruised all over, barely able to bend in certain directions without flinching. It felt like he was waking up after getting beaten down by a gang - or mauled by a pack, perhaps. He needed all of a second to consider whether it was worth it. Even wincing over to her desk, he knew it totally was. Her smile was a gentle one when she looked up from her work.

"Morning, Tristan. Hope I wasn't too rough with you. Was wondering if you'd be out all night."

He smacked his lips. Her taste had hardly faded in intensity, as if it was just a part of him then.

"How long was I out for?"

"Few hours."

She said it like it was nothing new to her to see someone pass out as soon as she was done with them. A yawn stretched his sore jaws, and he rubbed at those tense muscles in his cheek before continuing.

"Really? And you've been here all this time?"

"Yeah. Just to make sure you were okay. I guess I got pretty wild again."

She lightly chuckled. It was far from those wild cackles that had assaulted his ears a few hours ago, but it did tickle at the memory.

"I mean, you did warn me. Sort of. Maybe not ... adequately. I do kind of feel like I got hit by a bus, or maybe a train. Maybe a few trains? I'm not sure how to measure it exactly but definitely some kind of large vehicle."

"Aw, you. C'mere. You're gonna be fine."

She reached an arm out for him, and he really had no other thought but stumbling over. He wasn't sure if it was what she was getting at, but he was soon nakedly sitting in her lap, feeling her bulge beneath his butt, probably making a mess of her nice clothes while she put an arm around his chest and squeezed him here and there. When she got onto some of the sore spots he flinched, though her firm touch was making him feel a little better while she kneaded him. For all his tone, for all his work in the gym to shape and maintain his muscle mass, and he might as well have been made of soft foam, feeling how she squeezed him. He was soft and malleable in her grip, leaning back against the hard rock that was her body, finding the only softness in the pillow of her breasts. He didn't even hesitate to lean back and cushion his head in her cleavage, letting her stroke and squeeze him like a pet.

It was the middle of the night, he was completely naked and smelling of sex, and it might have been the most contented moment of his entire life. She was running her fingers through his short fur, rubbing his chest, squeezing his sore shoulders. It was the most casual thing. His ears were perked right up to the moment she laid a kiss between them. Then they were down flat, while he made another of those little whimpery noises, squirming in her lap. She held on tight, squeezing around his waist, humping him a little but keeping the horny low-key for the moment. There was something distracting her while she idly rubbed him. It took him a moment to properly realize what he was looking at. She'd pulled up one of his own reports on the screen, and was currently adding some comments to the file of her own. His heart sank to see just how many corrections she'd made already.

"I've been meaning to sit you down with this one. Now's as good a time as ever, right?"

He could feel her cock hardening beneath him even as she actively reached around him to scroll the mouse.

"Oh! Um. I mean. It looks like I messed it up."

"No, no, calm down. You're not in trouble. I just noticed you've got a few habits that I'd like you to kick. Lemme show you."

She clacked away with both hands for a while, deleting some of his wordy reporting language and replacing it with a sentence so simple he could have written it in primary school. He wasn't even getting to show off any of those fancy words he knew. But he had to admit, it was so much simpler like that.

"Oh. Is that ... is it okay like that?"

"You can read it, right? That's all it takes, Tristan. Sometimes breaking it down as simply as you can is how you know you understood it. Like say, consider this." She gave a sudden jab of her hips as if she were trying to buck him right out of her lap. "I wanted to fuck you, so I did. And I still want to fuck you. So I'm gonna."

He yelped when he felt her teeth on his ear. They felt sharp enough to bite through metal. She probably could have eaten him right up if she wanted to, but she was content to settle for gnawing on him. He felt her greedy grip on his sore butt, lifting him for just long enough to get her cock out. Then she was slipping him back down, letting him sit on it, grinding and hotdogging between his cheeks. A slow, steady hump kept her busy for a while, and she kept her hips going while she clacked away on the keyboard again, pulling up some of her lecture notes. He was astounded by just how loose they were. Despite how carefully and precisely she spoke when she was at the front of the classroom, her personal notes were a collection of general thoughts and jumbled ideas that she somehow formed into a coherent lesson every day. She just knew her stuff that well, he assumed.

A pop of penetration brought a gasp out of him as he sank down on her dick, feeling it stuffing him once more. He kept it warm while she buried it beneath his tail, taking him from behind while he lightly bounced in her lap, helping to get it all inside him until he could feel his balls resting against her own. Hers were bigger than the knot he had forming at the base of his unsheathing shaft, the pulses of her cock sending him mostly soft to fully hard all over again. There was a slight soreness when he got erect, but he didn't care. He was ready to push through his own physical limits with her just as she pushed him past his mental limits during the school week. A deep thump of his own got them started, though she was quickly taking him by the hips and pulling him down hard on her fat cock, shoving it all inside him, spanking his tender booty as she made him ride her while she chewed on him.

Yet for all the lust, she wasn't different from her lesson. She kept one arm around his waist to assist in her humping, typing with her free hand and scrolling down.

"See, here's what I wanted to get at. This is for upper year students but you're ready."

Her voice was as calm and professional as he was used to hearing her when she spoke. She didn't quaver in the slightest, even as she was solidly fucking his ass right there in her office chair. Much of him was still sensitive to the touch from their recent session, but that just meant the grinding prostate massage felt all the better, sending pleasure waves down to his dangling paws. He couldn't even touch the floor from high atop her lap.

"Unnnh ..." came his whimper, and he had to clench his teeth just to manage to answer her. "Right, so, the, mmmmf ... the concept of ... the basic ... ohhh, god ..."

"Yeah, exactly," she said as if nothing was unusual about his answer. She didn't slow her pace even as she resorted to some one-handed typing. "Watch how I write it out. It's unconventional, but I think a mind like yours will find it a lot easier if you start working it out like Einstein did. Just like this. Just make sure you convert back to Vector notation before handing anything in, or they'll know exactly who showed you this."

"Mmmf, yesss ... right, right, I see it ..."

He wasn't sure why, but hearing her professory lecturing voice in his ear while she fucked him was the biggest turn on. She was taking complex equations and breaking them down to something simple and easy to understand, right before his eyes. She didn't even need both hands for that. Knowing that she was passing on so much useful knowledge while balls deep in his butt was enough to make him start clenching down, tightening up around her cock while she steadily pounded away, pulling him up and down, making every part of him shake and wobble with the solid impact.

"Already?" She gave a soft chuckle and licked along his jawline. "And I was just getting the lesson started."

"I can't, I just ... when you talk like that."

"Ohhhh, is that it?" She leaned in close, licking the inside of his ear before whispering into it. "What do you say, doggy? You want me to keep giving you some private lessons? I bet your learning style would benefit from a lot of one on one time. Nnnnh, just think, we could open up some of my books, do some off-course stuff. You'd like that, wouldn't you? What about getting naughty and learning some doctorate-level stuff before you've even finished your master's?"

The hottest thing about it was she wasn't teasing. He could tell she meant every word of it. Getting to have some private lessons with his intellectual idol was one of the most exciting offers he'd ever received. And getting to run his tongue over her body, or suck her cock, or get bent over her desk and fucked, that was going to make it even better. He was going to learn even more that way. Just thinking about it was making him harder, tighter, making him whimper and quiver in her grasp. She took her hands off the mouse and instead just hugged him hard, bringing his head against her shoulder while she licked his cheek and throat. He closed his eyes and let himself lean back, falling into her embrace, letting go entirely. Everything was going to be okay. His work, his degree, his new life ... all those worries, all those anxious stresses worked up in his chest and poured out of him as she brought him to a huffy orgasm, drooling down the back of his neck while she tasted his naked fur.

Even with his eyes closed, he knew he got some serious distance on that cumshot, sending it soaring in an arc across her office. He didn't think about the mess he was making, instead just focusing on the ascending feeling of cumming hard for the professor he adored. She filled him with thick shots he could hear gushing inside of him, spurting out over her lap and getting into her clothes. He was swollen and heavy with her seed in seconds, left so stuffed he could practically taste it, unloading everything his balls had to give while his knot swelled and throbbed along with the rest of his dick. His head was feeling light again as he set to trickling, and he found himself falling as his orgasm subsided to a few last watery streaks. Her body might have been solid and hard, but she felt so comfortable beneath him as he leaned back and let her hold him for a while. His tongue dripped, his ears were flat, and his eyes remained closed. She squeezed him and held him, and he felt as if he might slip off to sleep again right in that moment.

"Good doggy. See? I'm gonna take care of you, the next few years. You're gonna get through it. And we're gonna have so much fun together."

His panting, drooling expression became a silly grin as he sat and simmered in the afterglow, still feeling her cock inside him, dripping and sweating and smelling of hyena sex right in the middle of the university. Maybe she was right. Maybe there really wasn't anything to worry about, and he belonged there, right where he was, sitting on that big genius bruiser of hyena while she licked and nibbled on his ears. He wasn't sure exactly how long his high would last, but at least for one night, he was convinced everything was really going to be alright.