The Biology 101 lecture hall slowly filled in with disparate young people. The beginner's class contained over fifty students on roster, most of whom were in attendance that eventful day. As the early-comers seated themselves, an unlikely figure strode into the college hall and dropped off her things at the professor's lectern. This wasn't Dr. Grimby, their normal teacher, but rather an exceedingly tall and imposing dragoness. The collegial drake was covered in blue scales and wore an academic blouse that was cut to fit around her furled wings. Everyone took notice of the exotic newcomer, who said nothing while she prepared several documents and studied her notes attentively, before testing the classroom's projector.
Finally, one of the students spoke up, raising their hand before loudly asking, "Uh, hello! Where's Dr. Grimby? Are you teaching class today?"
"An assiduous guess, young sir. Grimby was feeling under-the-weather, and personally asked me to fill-in for him today. I'd ask you to write little notes with your names, but this is going to be a one-time thing, likely, so let's keep it going smoothly. It's time for class to start anyway..." The unnamed dragoness trailed off while staring at the clock. She quickly gave her notes a once-over, before striding into the center of the audience chamber on her clawed feet.
The scaly, blue-hued drake swept her eyes about the room, regarding the many freshmen and women seated about her, "Hello, students of Biology Class 101, Section 02. As you may have heard, our dear Dr. Grimby has asked me to cover for today's class. My name is Saphixarmalia, but you can all call me Saphixa for short, Dr. Saphixa. Owning to the introductory nature of this material and our limited time together, I've decided to host a special observational event for today's lesson. First things first, though, I'd like to request a steadfast volunteer to help me with today's lesson. Participation shall earn them an automatic 'A' in extra credit." If at first the entrancing dragoness had their attention, the mention of a chance at an easy 'A' had the students on the edge of their seats, hands upraised in eagerness to be chosen.
A slight, toothy grin spread on the dragon woman's long muzzle, as she looked around carefully among the numerous students vying to volunteer. Finally, the reptilian professor pointed out an undergraduate near the top of the seats, one of some repute around the school. It was Vanna Marlow, a willowy girl with short, black hair, famous for her striking looks. She was a cute, freckled thing, with a developing young figure that ensured her an attention-packed semester at Jones liberal arts college. "You there, in the cute sweater. Yes, with the glasses. Come on down dear, you seem... perfect," there was a slightly ominous tone in Dr. Saphixa's voice as she spoke to the young woman, but all the other students were too distracted by the missed opportunity to pay it much heed.
The looming, azure dragoness intently eyed the approaching young student. It wasn't long before Vanna looked a bit creeped out by the unfamiliar professor, and her penetrating, violet eyes. The young freshwoman was visibly reluctant as she timidly approached Saphixa's side. The substitute professor broke her intent gaze on Vanna to regard the rest of her watching learners. The dragoness resumed speaking, projecting out her lecture in a deep, resonating tone, "For today's lesson, we'll all be getting an in-depth analysis of the unique anatomies of fantastical creatures, specifically, the noble dragon." As she continued her lecture, Dr. Saphixa rested a huge, squamous claw about the trembling student at her side, keeping Vanna close.
Finally, the lesson culminated in a direct request to the dragon woman's disquieted volunteer, "Vanna dear, could you sit on this stool here?" The huge drake reached over and dragged the chair from the professor's desk, dragging it over and guiding the dark-haired lass to sit down on the backless seat. "Right, let's get these nasty glasses off, won't be needing them," Dr. Saphixa said casually, as she plucked the student's wire-rim glasses off and tossed them aside. Vanna yelped out in alarm as her spectacles were taken, suddenly seeming far less enthusiastic about whatever acquiring the 'easy A' entailed.
Dr. Saphixa kept her clawed hand tight about Vanna's torso as she circled around the seated student. The dragoness had a smirk on her reptilian muzzle as she stood in front of the willowy freshwoman, reaching behind her to keep the human girl steady. "Right, then, let me begin by demonstrating the unique characteristics of my species' flexible and predatory anatomy," as the blue dragoness spoke, she lifted her huge, scaly tail and leaned backwards suddenly, catching Vanna off-guard. The watching students gasped as the dragon woman slammed her rubbery tail-hole down upon the seated young girl. The student immediately began squirming and thrashing, but Dr. Sahpixa had Vanna's beautiful face firmly implanted within her reptilian cloaca. Grunting from the exertion and intense stimulation of squatting down on the feisty young woman, the dragoness haltingly said, "Don't worry, this happens. My draconic body is just like yours; it needs to stretch a bit before engaging in a strenuous task. My hindquarters have a bit of give to them, so simply observe."
The murmuring of the students went silent as the talented professor used her rear end and slapping tail to position the struggling young woman within her tight cloaca. The supple, blue dragon curled over as she pressed her haunches down. Dr. Saphixa toyed with Vanna with her dexterous tail, dragging its tip in slow circles around Vanna's trembling form. The lovely young woman's head and shoulders rapidly disappeared into the reptilian vent of Dr. Saphixa. The straining creature slowly ground downwards, until the slender student's perky breasts were shoved up into the heated, sizable vent with an obscene squelch. Vanna's vigorous movements gradually ceased as Saphixa clutched her more firmly, gulping the smaller human up into her cloacal chamber. Everyone just watched as she sobbed and writhed within the tight confines of the dragon's gripping slit.
Dr. Saphixa was making slower progress now that half of the willowy girl's body was engulfed inside her scaled vent, which gradually expanded around the doomed student's lithe physique. The blue dragoness struggled to remain focused as the still-struggling young woman wriggled about frantically within her clenching depths, casually describing the intense physiological processes taking place, "The walls of my cloacal tunnel are incredibly flexible, almost as much so as those of your own body's vaginal canal. As you can see, much like during human childbirth, it takes my dragon frame quite some effort to shove even this slender woman's body up into my relatively spacious cloaca. Observe, even as I heave my considerable weight over the seated girl, it still labors to entirely envelope her slim figure into my warm and rubbery tunnel."
Dr. Saphixa lifted herself up fully onto the sitting Vanna, drawing her bountiful hips back, then forward slightly as she adjusted on the struggling young student. The blue-scaled dragoness began bouncing slightly, jostling the pale girl's chest and stomach up her cloaca, while she tried to continue, "If it were merely a matter of muscling her form into submission with a few gentle bucks and squeezes, things would go far quicker. However, I've got a meal right here who needs to be thoroughly kneaded and positioned for best results. Eventually though, my fantastic vent will simply roll along with my impressive bodyweight, even if my scales don't have the elastic 'give' of your soft, human flesh." The sounds of squishing and moaning from within Dr. Saphixa's spasming tail-hole alerted everyone to how much Vanna must be struggling in there.
"Slowly, gradually, we're getting there. But as you may have heard, my prey isn't very happy with her cramped condition. She seems to think she's got a say in this situation." Despite having all but disappeared up Dr. Saphixa's dripping cloaca, Vanna was still making a valiant effort to squirm about her tight, velvet confinement. After a bit more bouncing and slamming about, however, the struggling Vanna finally began to whimper in defeat as the dragon woman's scaled rump settled onto the stool, gradually tucking Vanna further inside. The willowy woman appeared to be completely contained within the professor's tail-hole. "As you can see, it's quite a tight fit; my predatory cloacal chamber is rather spacious, but not that wide. I'm lucky this young woman was so slender, or I'd be needing an additional set of hands to help stuff her lovely frame down here," Dr. Saphixa continued with a hearty laugh that sent the watching students either cringing or awkwardly chuckling.
"Right then, let's see how Vanna's faring down there, shall we?" the dragoness grunted, as she clambered off the stool and bent over. Dr. Saphixa raised her tail and slowly turned around, allowing all the college students to see inside her scaly rear end. The voyeurs collectively gasped as they saw Vanna's lithe legs wildly waving about between the clenching mounds of the reptilian tail-hole. Despite being mostly enveloped inside Dr. Saphixa's rump, the athletic human girl was still kicking her legs and flailing about. Unfortunately for the young woman, she was having little success at escaping, and it quickly became clear Dr. Saphixa was in full control of the situation.
"Ugh, I assure you students, this is almost as intensely stimulating for me as it is for her! Not to mention, I need to carefully situate her form, considering her height and propensity for quick movement," the blue dragoness stated with a hint of irritation, as her slitted eyes darted down between her legs to the dangling from within her cloaca. "Ah, but look at that! My body is instinctively sucking her in now, much like a creature's mouth would seek out food. I can feel my pelvic muscles coordinating to swirl her lovely legs, and I think you all can see they're doing their part," the visibly excited dragoness continued as the students watched raptly. Vanna was trying desperately to resist as she was drawn deeper into her predator's snug den. As the watchers looked on in fear, the athletic young woman slammed her silky, stocking-encased thighs about the slurping cloaca walls, but nothing would delay her methodical consumption.
After several more minutes of this treatment, Vanna was no longer thrashing about wildly inside Dr. Saphixa's tight rear chamber; she seemed resigned to her fate as her thighs and lower legs were buried up inside the dark-blue dragon's vent with small, insidious tugging motions that gradually cocooned the struggling girl. The student's feet curled and writhed atop the firm walls of the cloaca, vainly trying to maintain some semblance of personal space. Finally though, as if by magic, there was an audible 'pop' as the dainty limbs disappeared from view, until suddenly the poor girl's toes peeked out briefly between Dr. Saphixa's colossal hindquarters before vanishing again. The luscious dark-haired damsel found herself entirely swallowed up inside the snug depths of her professor's cavernous vent, gasping for air as her hot, dark body was compressed up into an uncomfortably tight fetal position.
"Oh yes, just like that! Come along now, Vanna dear," the dragoness purred at the whimpering woman inside her cloaca, as her tail began to settle back over her twitching, sopping vent. "I'm sure you're trying to work your way free now, but just let my channel do it's job of wrapping you up tightly; it won't take long!" With a grunt and a bit of a waggle, the blue dragoness asserted control of the situation, gently swirling her wide, draconic hips about in circles with her thick tail drawn to her clenched cheeks. The human girl shuddered and squirmed, unable to find any purchase on the tight inner walls of the reptilian tunnel as they grasped and held her form firmly.
Dr. Saphixa proceeded to demonstrate how easily she could draw her hapless prey further, by bending over and spreading her scaly butt-cheeks apart so everyone could see deep inside her well-groomed vent. The students couldn't believe what they were seeing as the dragoness proudly displayed how Vanna's feet kept awkwardly reemerging in rhythm with her unshakable peristaltic movements as she shifted about to adjust the tight fit of the victim's figure within her clutching cloaca. Dr. Saphixa hummed as she worked the compacted Vanna up deeper into her tail-hole. The expert predator focused intently as she pressed the student down into a small, easily controlled ball. Her technique was far from perfect, but at least she could now maintain a firm hold on her plaything.
The willowy Vanna Marlow was reduced to a twitching, feminine bulge within the snug cloaca of Dr. Saphixa, who enjoyed the captive woman's constant struggles as she deliberately worked the live young thing ever deeper into her tender, moist folds. After several minutes of this treatment, Dr. Saphixa finally had the beautiful girl firmly secured within her wicked, clenching depths. As her ample buttocks began to shift and wobble against the sides of Vanna's motionless form, Dr. Saphixa sent her voice ringing out around the classroom, "That's right, everyone, you're going to see how your lovely instructor handles her prey within her own body! Keep looking, everyone; you'll get a great view soon enough."
As she spoke, Dr. Saphixa reached for the endoscopic camera she'd attached to the classroom's projector system. The dragoness expertly inserted the camera's tip into the lubricious confines of her cloaca, then tapped commands with her scaled fingers on the nearby keyboard for it to feed back the latest visuals from within her grooved vent. There was a short pause, followed by excited murmuring among the watchers as the lurid image flickered onto the classroom's projectors. They saw Vanna's petite form, grotesquely compacted and sopping with slime as she was packed entirely within the cloacal tunnel. It was quite a sight, to say the least. The professor seemed to be having trouble centering the camera lens, however.
There were a mixture of groans, gasps, and excited murmurs as the image finally focused into frame, revealing all the lurid details of Vanna's inadequately spacious flesh prison. The girl appeared to be squirming inside Dr. Saphixa's wide, scaly cloaca, which was clenching tightly about her slender form. Her dark hair was plastered up against her head and shoulders; the lanky woman's entire body seemed to be coated in glistening, slippery slime. Her elbows were splayed wide, pressing up into the damningly tight inner walls of the constricting vent. As the students watched, Dr. Saphixa began flexing her hips and tail-hole muscles, slowly squishing and jostling her prey to display how easily she could adjust her captive's tight fit.
As they listened and watched, several students found themselves becoming aroused as the scene was repeated over and over. The dragoness was becoming lost in the morbid footage of Vanna Marlow being utterly possessed by the relentless peristaltic movements of her greedy tail-hole muscles. There was a feminine squeal as Vanna's small, smooth feet slid across the clenching inner wall of Dr. Saphixa's reptilian vent. The dragoness was using the footage to coordinate her motions, blatantly playing with the helpless student in front of everyone.
After several more minutes, Dr. Saphixa finally canted her hips forward, causing her victim's stomach to make contact with her cloacal channel. "Let's see if we can get some footage of Vanna's face in there... if i just position her like this... yes, perfect!" With that, she lurched her hindquarters back, and suddenly there was another soft 'pop', followed by Vanna Marlow's flushed face popping up into view as her entire body was bent down into an uncomfortable-looking fetal position, sandwiched between the tender walls of the dragon professor's undulating pelvic channel. The young woman's eyes darted around nervously as she tried to come to terms with her bizarre predicament, but it was clear the young student was struggling to adjust to her circumstances.
Dr. Saphixa began flexing her hips and pelvic muscles, pressing down harder on the slender girl's body with each rotation of her hips. Slowly, the dragoness positioned the doomed student's face directly in front of the endoscope's camera lens, a position allowing viewers to look onto Vanna's terrified visage as Dr. Saphixa resumed working her captive up into a tighter fit within her cloaca. The short-haired young woman had tears running down her cheeks, while her smooth face seemed to be enveloped by pink, gripping inner walls, which squeezed and released about the woman's head irregularly. It was an obscene sight, seeing how the student's face would rapidly disappear from frame as Dr. Saphixa crammed her inner passage closed around the desperate woman's pretty face with dominating force.
The rapt audience was drawn in by the fluid motions of Dr. Saphixa's muscular peristaltic contractions as she demonstrated the incredible control she possessed over her live prey; they could see how the cloaca shuddered and writhed against their captive, bending the unfortunate Vanna Marlow into such a miserably contorted position some of the viewers found themselves transfixed by the slow, gyrating images of Vanna's tense facial expressions. It didn't seem to matter that most of them were initially repulsed by what they saw. The chance at seeing the beautiful girl reduced to an inert, helpless form inside the dark-blue dragon's sex was somehow too intriguing to resist. Even those who couldn't watch, with eyes glued to their feet or notes, were left to imagine just what kind of horrifying treatment this lovely student was forced to endure.
Over the next several minutes, as Dr. Saphixa pressed her captive further into the deepest reaches of her cloaca, her own internal juices began to flow strongly through her tail-hole. As it became more difficult to get good footage of Vanna's face through the clinging drool, Dr. Saphixa would simply angle her body around so the camera could pan up and down the rest of the young woman's figure. As the professor did so, a group of excited male students mumbled approvingly among themselves, "Look at how firmly she's got her! I bet Vanna's glad she did yoga!"
Another brief pause and flickering image later, Dr. Saphixa was ready to have another go at capturing Vanna Marlow in all her suffering glory. With a gentle flex of her cloacal muscles, the professor drew back slightly from her captive, then pushed down hard against her, causing the motionless student to make contact with the wet, winking inner walls of Dr. Saphixa's engulfing cloaca. As the video came back into focus, there was a collective gasp in the room as the horrific spectacle came into view. Dr. Saphixa clearly had a firmer grasp about Vanna now, as it was difficult to discern the doomed human girl's struggles beneath the squeezing wetness of the dragon's tail-hole.
Dr. Saphixa began rhythmically pulsing her tail-hole muscles about, sending waves of sheer pressure along the sides of Vanna's helpless figure, leaving a clear impression as to what the student's outline looked like within the drake's scaly passageway. The entire scenario was deeply horrifying, and many viewers found themselves averting their gaze from the endoscope's screen as they were too repulsed by the act of seeing Vanna reduced to such an unrecognizable mess of mercilessly compacted flesh. But even those who could watch felt the compelling need to do so, for Dr. Saphixa's predatory motions and peristaltic contractions seemed to be growing ever more forceful as the professor gradually adjusted her squeeze of her victim's body, once again causing the frightened student to desperately attempt to wedge herself out some room within Dr. Saphixa's seizing tail-hole.
Dr. Saphixa repeated the process several times more, pulsing her muscles steadily as she forcefully demonstrated how easily she could manipulate the helpless young woman with just a few writhing squeezes. Dr. Saphixa's movements began to pick up speed slightly, causing many of the students watching to clench their hands in abject horror as they imagined what it might be like to be on the receiving-end of a creature like the dragoness. Not all were turned off by the show, however: a couple of young men audibly gasped in delighted appreciation at the constant rippling action that was beginning to occur, seemingly hypnotized as the enraptured Professor Saphixa displayed the dramatic, heart-wrenching footage of Vanna's frail figure being inexorably transformed before their very eyes into a miserable, squirming mess of suffering flesh.
There was another loud 'pop' within the room as Dr. Saphixa withdrew the endoscope from her tightly clenching nethers, abruptly aborting the grisly footage of the young woman's incredibly precarious predicament. In one fluid motion, Dr. Saphixa reached down and began unceremoniously pulling her prey's sodden clothes free from her cloaca as the slimy, tattered garment slid out in gooey slithers, accompanied by an obscene gurgle of satisfied suction. Dr. Saphixa seemed to be savoring the feel of the sodden material against her scales as she let the fabric fall to the floor with a plop, then she dropped back down onto the nearby stool.
The class was silent for several moments as they waited for Dr. Saphixa to resume speaking. With a wide smile playing across her scaled lips, the dragoness looked around at the rapt, flushed faces in the classroom, and began speaking again. "Right, now I'm going to show all you excited learners how my physiology reacts to the presence of another female victim. Do I have another volunteer? I really am quite eager to demonstrate my... capacities," the heated dragoness bellowed with clear arousal. After observing Vanna's ignoble fate, and seeing what it meant to be thoroughly squeezed up into Dr. Saphixa's reptilian cloaca, the students seemed universally more reluctant to volunteer for such a demonstration. Dr. Saphixa gave them all time to think about it, but no one moved. The dragoness would wait only a few moments longer before giving up on finding volunteers. "Ok, ok fine, if no one else wants to try for a chance to experience the stimulating capabilities of my tail-hole... I will just have to personally select a student. Now, who among you would fit up nicely with that slender girl... Oh yes, that young lady over there," Dr. Saphixa gestured toward the right side of the room where one of the older female students sat nervously, exhibiting obvious signs of distress at what she had witnessed. "Yes, I think you will be the perfect fit."
Dr. Saphixa languidly strode over toward the distressed woman, who sat frozen in place with wide eyes as the dragon professor approached her seat. The dragoness leaned in close to the woman's ear, then whispered something to her conspiratorially. The frightened, visibly shaking student could do nothing but nod slowly in response, after which she rose from her seat and walked with much trepidation with Dr. Saphixa down to the stool the professor had just used for Vanna Marlow.