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This vignette was written for Ferretfyre as his Patreon flash fiction reward for October 2019. It contains sexual acts between multiple consenting adults and hyper-orgasmic fun. :3

Study Group

"So, we can break symbioses down into those three groups. Parasitisms, Commencalisms, and Mutualisms. Can anyone give me examples of each?"

Marcus had only been out of college for just over a year, but he was already one of the most successful private college tutors in the city. The grades of the undergraduates he taught spoke for themselves, but beyond that professors and parents of the students he taught, strictly those of eighteen years of age or older, were amazed by just how engaged and eager his students were. He'd heard many a parent tell him that they had been begged in near tears by their already successful, talented college-going kid that they had to get classes with him, and the leopard-tiger hybrid knew for a fact that several of the groups he taught, like the one he was visiting with right now, paid for him entirely out of their own pocket, without even asking their families for support.

He beamed as hands eagerly rose from each of the four individuals present, and chuckled as the other three groaned when he pointed quite simply at the first hand which had risen, belonging to a plump antelope who was sitting cross-legged in a pair of silky blue pyjamas by the coffee table of the dorm apartment's living room, a mass of textbooks and notebooks open all around her.

"A myrmecophyte is an example of a mutualism, where both the host and symbiote benefit from their relationship. The plant's tuberous roots provide a home for the ant colony meaning they don't need to spent time and energy searching for one, and in return that frees up resources which the plant can use for growth rather than chemical or physical defences, as the ants will defend its leaves from herbivores."

Marcus grinned, and nodded warmly to the blushing, slightly squirming woman.

"Great choice of example, Laurie. Myrmecophytes are some of my favourite plants. They're so cool, right?"

The antelope giggled and nodded sincerely, before continuing.

"A parasitism is when the symbiote damages its host by its presence or action, for example the anopheles mosquito which sucks the blood of its host species for its own nutrition, and can induce deadly diseases like malaria."

Marcus nodded once again, though this time added a little extra information, looking from Laurie to the other students present, all three of them looking a little more frustrated than before, and glancing rather jealously at Laurie.

"Right again. You could also have used the anopheles mosquito as an example of a mutualism, though between the mosquito and the plasmodium which it transmits to the bloodstream of its host. The plasmodium benefits from the vector provided between host animals through the mosquito, allowing itself to be spread into new hosts, and the plasmodium in turn aids the mosquito by inducing malaria, often with high fevers that render its host inactive and helpless, thereby making them an easier target for other mosquitos to feed upon."

Laurie's eyes widened in wonder, and she hurriedly began to scribble notes in her work-book before raising her head once again, speaking even as she continued to write.

"And, a commencalism is the least common of the three types of symbiosis. An example of a situation where a species becomes dependant on another without having either a positive or negative effect upon it. For example, many species of bacteria live upon or within anthros like us. Not just gut flora that do aid in digestion and processing of nutrients, but many other documented species that have little to no effect on us in any way that we understand by their presence or their removal, yet still require our bodies to survive and breed."

The feline male grinned broadly, and as he saw Laurie tense up hopefully, he gave her an affirming nod.

"Correct on all counts, which brings you to ten correctly answered questions. Would you like your reward now or..."

He asked because etiquette demanded it, and because generally speaking it was always the right move to establish informed consent without any ambiguity. Even before the leopard-tiger hybrid could finish asking though, he broke off, chuckling as Laurie hurriedly pushed her books aside, lay down upon her back on the carpeted floor, lifted her legs up into the air, and began to pull down her silky blue pyjama trousers shamelessly in front of her three roommates and fellow students.

"Fuck me, please..."

She gurgled gleefully, kicking off her PJ bottoms and spreading her legs wide open, plump pussy already glistening wet. Marcus huffed, already feeling his own professionalism and intellect starting to melt away in the face of such open arousal, never mind such a wonderfully shameless and beautiful body as the one which the antelope possessed. Glancing over to the other three students even as he unfastened his belt and began to unzip his slacks, the front of them already beginning to tent outward, Marcus grinned as he saw all three of them squirming and shifting bashfully around where they were seated. Faiza had a hand already buried down the front of her unbuttoned jeans, and Victoria and Adrian were glancing at one another with pretty undeniable 'fuck me' eyes of their own. He nodded to them warmly.

"Ten minute break. You can stay and watch, or..."

Once again he didn't even need to finish the sentence as Victoria threw herself at Adrian and began to paw at his trousers, while Faiza groaned loudly, giddily, and began to pull off her own clothes one handed as she continued her already active masturbation with the other. With the three of them all busy though, it was Laurie towards which Marcus turned as he pushed his slacks and underwear down, and started to unbutton his shirt even as he dropped to his knees and crawled towards the antelope. By the time he dropped to all fours and crawled up over her waiting, trembling body, he was fully naked, and so was she, her pyjama top lying on the floor a short distance away half resting upon the ecology textbook through which they were working their way.

"You did so fucking good."

Marcus growled, his voice growing softer, somewhat more relaxed and zoned out as it always did when he got horny. Bowing his head, he lapped at one of Laurie's nipples upon her ample, beautifully rounded breast, then tilted his head to perform the same action on the other. She gasped and moaned in excitement, but what she really wanted was clear, and she said as much just seconds later.

"Please, Marcus. Fuck me... make me... let me feel it again. Please."

The feline male grinned, and nodded to the antelope. She had earned this, and of course, he was under no illusions that this was why he was here. Why he was so popular with his clients, his students. Why they wept and begged for one last class when a holiday and weeks away from the college campus loomed, and why he had to be especially strict about not letting people bankrupt themselves paying for extra, unnecessary 'tuition' with his very specific rewards system. He was here because, in a weird way, of his mother. One of the three of them, that is. Because of a gift that she had in part bestowed upon him, and the way he could bestow that gift upon others.

Marcus groaned as he pressed his cock down against the antelope's nether regions, and just moments later felt her warmth and wetness swallowing him up. His cock twitched. Laurie gasped, and moaned in pleasant excitement at the heat, the stiffness of his cock inside her, but strained and delirious anticipation at what she knew would come next. Sure enough, all it took was a few strokes, a few motions of his hips forward, deeper into her, and back again before the action repeated itself, until Marcus felt the first ever so brief trickle of his pre-cum drip from the tip of his cock and out against the sensitive, welcoming inner walls of Laurie's pussy.

Her eyes widened. A strangled, guttural gurgling escaped her lips, and from that moment onward each and every time Marcus shifted even the tiniest bit within her, she began to grunt, to gasp, to moan, to cry, to wail and to scream as her body succumbed to the aphrodisiac laced quality of his pre-cum and transformed every last little twinge of pleasure into a near orgasmic cascade of pure, rapturous ecstasy. The more she reacted as Marcus began to fuck her in earnest of course, the more pleasure she provoked in her tutor in turn. Thus the harder he fucked her, and the more of his pre-cum dribbled, dripped and soon began to spurt more abundantly out against her ever more receptive, gloriously unrestrained, clutching, squeezing, soaking wet depths.

"Yes! Yesssss, do it! Please! Ohhh please, make me! Mnnhahhhhmakemecuuuummmm! Cumming! Ohhhgodfuck! Fuck yessss, I... I'm cumming! I'm cumming!!"

Within a minute, the living room of the apartment was echoing with her screams as hot streaks of her ejaculate sprayed out between her and the cock now pounding at her clutching depths in a frenzy. Her hoofed feet kicked and flailed, her hands grasped and pawed mindlessly at Marcus' back, and as his balls slapped roughly against her ass, they were soon left dripping with the overflow of her violent, glorious ejaculations.

"More! More! Ohhhnnhhhahnnhhghhhooodyesss! Yes! Yesssssss!"

Barely thirty seconds after the first abated, Laurie shrieked and wailed as a second orgasm crashed over her, a third striking scarcely moments after there was even a chance of declaring the second at an end. She sobbed and screamed and thrashed and begged and just kept on cumming and cumming and cumming so long and so hard that even if she'd heard her friends calling her name, even if her parents had walked into the room in that moment and tried to drag the snarling, grunting, mindlessly humping man off her, she probably wouldn't have even registered it unless they'd succeeded and the constant motion of that cock deep inside of her had ceased.

For close to seven minutes the leopard-tiger hybrid rutted the antelope without pause, the entire apartment ringing with their shared cries and occasionally those of one of the other attendees of the study group, losing control from where they were watching greedily, jealously from close by. Adrian was already lying flat on the couch, whimpering, blushing and spent, while Victoria now knelt in front of Faiza with her face buried in the red panda's crotch, her own fingers still buried and working hard within her pussy even as Adrian's cum dripped out of it. They knew they were all close to getting a turn of their own, either on seven or eight answers respectively out of the ten points they needed to earn a reward such as that which Laurie had just claimed. But still, watching and listening to what their tutor was capable of doing to Laurie just as he was to each and every one of them didn't make it any easier to be patient. Especially not when they heard Marcus' own grunts and moans intensify, and all paid closer attention, wide eyed and panting, to what they all knew was about to happen.

Huffing, grunting, his face a picture of open mouthed, mindless bliss as his tongue lolled out and a string of drool dribbled out over Laurie's wildly jiggling breasts, Marcus howled as at long last he began to cum, and painted the insides of the antelope's body with an orgasm that even in its first moments he knew was going to last well over a minute, and outmatch the volume that any normal, fully mortal being with a cock regardless of its size or the balls that accompanied it would be able to produce by several times over. His pleasure was all consuming and heavenly, just as it always was with a warm, wet, eager body wrapped around him to urge him on with their own shrieks and roars of bliss. But all present in that moment knew that regardless of what Marcus himself was experiencing, it was nothing, absolutely nothing, compared to what Laurie felt as the torrents of the feline's cum poured into her, her eyes glazed over, and she began to convulse in an orgasm of such intensity it might have been mistaken for a seizure.

Occasionally over the next five minutes, long after Marcus had pulled out of her, panting and beaming as he leaned down and kissed her gently on her forehead, Laurie would grunt, or whimper, or let slip a brief, strangled sob of pure ecstasy. For the most part though she simply lay there quaking and quivering, almost totally paralysed aside from the rapid rise and fall of her chest, the flexing of her fingers, the fluttering of her eyelids, and of course the constant, volatile gushing of her pussy.

With a stack of towels laid out beneath her legs to avoid soaking the carpet to the point where it would begin to leak through the next floor down's ceiling... again... Marcus sat beside Laurie as she revelled in the true reward for her intelligence, stroking her face as while her ecstasy continued to plateau at that impossible, stratospheric height, his mind slowly began to function on a less purely primal, sexual level once more. By the time she finally settled, by the time she stopped squirting, and with one last gush, one last surge of pleasure and a drunken, giddy giggle flopped entirely limp, Marcus was ready to teach again. Thus all he had to do was scoop the lightly snoring antelope up in his arms, carry her through to her room, and lay her down upon her bed before returning to his three other students. He dressed once more, smiling and nodding appreciatively as they made sure all their clothes were restored too... albeit with Adrian's jeans still tented, and sat down before them with a warm, encouraging nod.

"Okay then, break-time over. Next question, describe to me some of the habitat characteristics you might expect to see in a benthic ecosystem where Lophelia pertusa is the dominant coral species? Two points if you give a comprehensive answer on your own, or you can each get one point for brainstorming."

Three hands shot up into the air immediately, and Marcus grinned.

God, he loved his job.

By Jeeves

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