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"Welcome back to Practical Anatomy," Stede said, clapping his hands together. He stood in the lecture hall in front of a dark curtain, a camera fixed on his face and projecting the image onto a large screen above him for all to see. "Today we are fortunate to have a volunteer to be the live model for our section on sexual function. Our model today is Basilica, a trans man." The curtains parted, revealing a blindfolded nude man strapped to a gynecological chair. The camera panned over Basilica, showing his torso covered in hair and the straps securing his arms to the armrests, lingering over the thatch of neatly trimmed hair between his legs, then the cuffs around his ankles that kept his feet in the stirrups, forcing his legs to spread wide. It zoomed out again to show a wide view of him from the neck down. There was an additional camera pointed directly at his genitals, a close-up for when Stede began the practical part of the lesson, which had yet to be turned on.
"We also are fortunate to have my assistant, Blackbeard, with us today," Stede went on. A man in a nurse outfit—the little cap placed upon his silver curls, a black surgical mask over the lower half of his face, a tight white minidress with a plunging neckline showing off his tattooed chest, and white thigh-high stockings in black pumps—emerged from the wings, pushing a cart loaded with an assortment of medical implements neatly arranged on trays. The camera panned over to Blackbeard, who gave a little wave. "Blackbeard will be assisting me at various points during the lesson, as well as monitoring the model and ensuring his safety and consent for everything that is done today." Stede moved over to the cart and pulled on a pair of exam gloves. "As usual, we'll start with the regular baseline measurements and subject history. Blackbeard, the calipers and subject information? Oh, and let's switch on the other camera. We'll be needing that shortly."
Blackbeard picked up the calipers from the cart and handed them to Stede. "Our subject for today is Basilica, age 39, on testosterone for two decades," Blackbeard said. "He has undergone top surgery but no hysterectomy or bottom surgery."
Stede nodded as he took measurements of Basilica's nipples, labia, and cock with the calipers. "As you can see, Basilica had a double-incision," Stede said, smoothing down some of the subject's chest hair to reveal the twin pale scars under his pecs. He twisted one nipple, eliciting a gasp from Basilica, and went on, "The nipples are intact and have sensation." He moved down between Basilica's legs and Blackbeard switched on the close-up view. The subject's folds appeared on the screen, spread open to reveal a cock that was beginning to plump up and labia flushed dark with arousal. There was a sheen of wetness around his slit.
"You can clearly see the effects of testosterone therapy on the subject's anatomy," Stede said. "In the unaroused state, the subject's cock is about 4 centimeters in length. As we have seen from some of the cis women volunteers in previous lessons, the size of the clitoris varies from person to person. Basilica, would you say you've had significant growth on testosterone?"
"Yeah," Basilica rasped. "My cock was about the size of a pea before I started."
Stede used a couple of gloved fingers to gently pinch Basilica's cock and ease the foreskin back. "Now, since much like the male phallus, this part of the anatomy is composed of erectile tissue, it will increase in size with arousal and stimulation. We'll be measuring that later. Next, dilation." He held out the calipers for Blackbeard to take, then accepted a squirt of lube on his fingers. "We're not checking the cervix, since obviously Basilica is not in labor, but it's the same general principle; one finger is about one centimeter. While the subject is producing his own lubrication in response to digital stimulation, it's always best to provide additional lubrication, especially since we'll be using a speculum to examine his internal anatomy. Additionally, the effects of testosterone therapy can affect how much lubrication is produced."
Blackbeard reached between Basilica's legs and parted his labia with one gloved hand, revealing the subject's hole. Stede inserted two fingers with ease, pushing them deep. "Of course, there's no truth to the rumor that one's hole will become too stretched out or loose with promiscuity or after childbirth. We must keep in mind that this part of the body is self-lubricating and elastic." He pulled his fingers out and flicked Basilica's cock, causing the man to jump a little, rattling the straps that bound him to the chair.
"Fuck," Basilica breathed. Sweat was beginning to darken the hair on his chest and his nipples were dark pink and erect. He could feel his t-dick throbbing, growing hard and beginning to emerge from its hood. Blackbeard and Stede's touches and treatment, not rough but rather clinical and impersonal, had him almost trembling with how turned on he was. The thought of how exposed he was, his legs spread wide and Blackbeard's fingers forcing his labia apart to reveal the entirety of his cunt to the lecture hall only served to increase his arousal. He thought his cock must be completely hard by now. He could feel the wetness dripping down from his slit, a combination of his own slick and the lube, and wondered if the rivulets were visible on his skin.
Stede held up the speculum, coated with a generous layer of lube, before inserting it into Basilica's hole. The speculum clicked as he opened it wider, stretching the subject's hole open and revealing the flushed pink channel gleaming with slick to the camera. "Oh, that's lovely," Stede said, looking up at the projected image. Basilica's hole was on display in high-definition, held open by the blades of the speculum. His cock, now fully engorged, twitched as Stede breathed on it gently. Stede reached out one hand and Blackbeard obediently placed the calipers into them again. "The subject's erection is now approximately 6.5cm with a girth of 2.5cm," Stede said, handing the calipers back. He used his thumb and forefinger to slowly stroke the man's hard cock, making Basilica whimper before he withdrew his touch again.
On the screen, Basilica's legs trembled and slick trickled down from his hole to the paper cover on the chair. Stede didn't appear to care, instead pointing out the cervix and measuring the depth of Basilica's vagina before finally withdrawing the speculum. "We will next proceed with the first stimulation exercise. Blackbeard will provide digital stimulation to the subject's g-spot and cock in an attempt to measure physical response and arousal. In this case, our goal is not to induce orgasm in the subject but rather to locate the g-spot and record his response." He moved away so that Blackbeard could get a better angle. "Basilica, please indicate when you feel Blackbeard stimulating your g-spot."
The speculum had opened Basilica enough that he was able to take two of Blackbeard's fingers without issue. He could feel the assistant's knuckles tugging at his rim, his fingertips searching for that spot inside him, curling upwards. "Bit further up—ah! Right there, fuck," Basilica gasped, his hips bucking. Stede put a hand on Basilica's lower stomach to hold him down as Blackbeard's fingers rubbed and pressed at the spot Basilica had identified. Blackbeard circled Basilica's cock with his thumb at the same time, making the subject struggle against his restraints and whine desperately for more. The dual stimulation had sent heat coiling in his core and he instinctively sought more contact, more friction.
"The subject has a full-body reaction to stimulation of both his g-spot and cock. You will note the heavier breathing, increased amount of lubrication—not all of this is his natural slick, of course, but I can assure you there is plenty—verbal reactions, the flush to his skin, and that his nipples are now erect. In fact, we'll be adding stimulation to his nipples next," said Stede. He picked up some forceps clamps which he affixed to Basilica's nipples, pinching them hard. Basilica moaned, his voice breaking, and Stede asked, "Basilica, when you masturbate, have you managed to achieve orgasm from nipple stimulation alone?"
"N-no," Basilica stammered, his breath hitching as Blackbeard kept up the pressure on his g-spot but withdrew the touch from his cock. "I've tried, but I need—on my cock, please, more."
Stede hummed and reached down to part Basilica's labia wide, showing off how the subject's hole swallowed Blackbeard's fingers with ease. It fluttered and clenched around them. "Let's add another finger, shall we?"
Blackbeard obediently slipped a third finger inside, pressing hard against Basilica's g-spot as Stede spoke. "The subject has acclimated nicely to the stretch. You will note that his labia and cock are engorged with blood. As you will recall from the anatomical renderings of the clitoris, much of it is internal, so we unfortunately cannot visually examine the response to stimulation. Basilica, would you be able to describe what you are feeling?"
The man strapped to the chair moaned, his hips moving in an attempt to get more friction against his cock. "It feels—oh fuck—I feel Blackbeard's fingers right up against my g-spot, stroking." His breath hitched a bit, his voice creaking as he went on, "I feel the pressure but I need more, please, I want him to touch my cock."
Stede hummed, fingers still keeping Basilica's cunt spread open. "Not yet, I'm afraid. Blackbeard, please start moving your hand."
Blackbeard obediently began moving his hand in and out of Basilica's cunt, making sure to hit his g-spot on every thrust, keeping the pace slow.
"Basilica, how is the additional internal stimulation?" Stede asked, watching his assistant finger the subject.
"It's... There's pressure and heat building in me every time he goes deep and hits my g-spot but I can't, I need, please touch my cock, please, oh fuck," Basilica begged desperately.
"Every person is unique," said Stede as he gently brushed his thumb over the head of Basilica's cock. "How do you usually touch yourself, Basilica? Like this?" He moved his thumb in gentle circles over the tip. "Or this?" He spread his fingers in a V and slid them over the length of the subject's cock, keeping the touch light.
"Th-the second," Basilica said. "Fuck, please, I need more." His hips bucked as if he was trying to thrust with his little cock, only managing to get Blackbeard's fingers deeper.
Stede pulled his hand away, startling a desperate whine from Basilica. He picked up a small bullet vibrator from the cart, showing it to the class, then turned it on and pressed it against Basilica's cock without warning. The man immediately howled, his muscles tightening and clenching, arms and legs straining against the straps holding him down. His chest heaved, the shiny clamps standing out on his nipples as his cunt contracted around Blackbeard's fingers, sweat darkening the hair on his pecs and belly. Stede continued to hold the vibrator on the subject's cock even as Basilica begged and cried out, his hips twisting as he fought to get away from the stimulation. Wetness spurted from his hole, splashing out as Blackbeard's fingers plunged in and out with an obscene squelch.
It was too much, it was perfect. The initial shock of the intense vibrations on his sensitive t-dick had driven him over the edge, the orgasm taking him completely by surprise. The insistent pressing of Blackbeard's fingers against his g-spot combined with the powerful vibrations had him trembling and gasping from the overstimulation, his nerves on fire. He could feel the blindfold absorbing the tears from his covered eyes as he struggled against the restraints, desperation beginning to set in. He imagined he must have soaked the papery sheet beneath him, probably gotten his juices all over Blackbeard's pretty nurse outfit, and he felt a little more wetness spurt out around Blackbeard's fingers. He felt overheated and tingly and it was too much, please, please, he wasn't even sure if he was begging out loud or not, his blood roaring in his ears as the orgasm burned through him.
"That's one orgasm with ejaculation from internal digital stimulation and a vibrator applied externally to the subject's cock," Stede said, and Blackbeard's fingers finally pulled out completely just as Stede turned off the vibrator. "We'll give Basilica a few moments to recover before we move on to the next test. How are your nipples feeling?"
Basilica moaned wordlessly, his hips still jerking, but he managed to curl his fingers into an OK sign. His breathing was shaky, legs quivering, and he could feel his hole flutter and clench around nothing. All of the sensation appeared to be contained between his legs; the pinch of the clamps on his nipples was only an afterthought as he continued to come down from his orgasm, sparks still running along his nerve endings and his cock twitching and throbbing.
"Very good," Stede said. He stripped off his soaked gloves and pulled on a new pair with a snap as Blackbeard did the same. "The way that nipple clamps work is by restricting bloodflow. It is often when the clamps are removed that the most intense sensations occur as blood rushes back and the nerves are stimulated. Let's see how Basilica responds, shall we?"
Blackbeard pulled the clamps off Basilica's nipples, making the subject gasp. "Fuck, it hurts but it's good," Basilica said, his voice almost a sob. "It stings and aches." His nipples were dark, dark red, almost purple. Blackbeard rolled one between his gloved fingers with a bored expression as Stede grabbed the calipers and measured the other, noting how much it had swollen from the treatment.
"The next test will take a little time to set up, so I'm certain Basilica will appreciate the break," said Stede. "Blackbeard will be monitoring the subject while I get the equipment ready."
Blackbeard held a bottle with a straw to the subject's lips. "Go on, have some water," Blackbeard said, his voice soft. "You've earned it."
Basilica gratefully sucked at the cool water. He'd moaned and shouted until his throat was raw and he knew he needed to replace some fluids. The cool water sliding down his throat helped to remind him he was more than just the aching, throbbing flesh between his legs and on his chest without fully drawing him out of the floaty feeling that had taken hold.
Stede, meanwhile, had set aside a number of cylinders and tubing on the cart and adjusted the camera pointed at Basilica's cunt so that it was a top-down view. Then he walked around behind Blackbeard and tugged on the skirt of his minidress, tearing it away above the waist to reveal Blackbeard's caged cock straining against its confines. Stede pulled a key on a thin chain over his head and used it to unlock the cage, placing it on the cart. Blackbeard held completely still, allowing Stede to rub lube over his dick and position him so his now-hard cock was lined up with Basilica's opening. The final touch was a cockring at the base of Blackbeard's cock.
"Next we will attempt to induce orgasm by means of vaginal intercourse," said Stede. "It is unlikely that our subject will actually reach orgasm from internal stimulation alone, so once the subject is begging for release, we will apply the additional measures with the readied implements. Blackbeard, you may begin."
Basilica moaned as Blackbeard slowly breached him. His dick was long and thick, but the pace was slow and Basilica was already loose and slick from his previous fingering and orgasm. The slow thrusts were only enough to set his nerves tingling as the head of Blackbeard's cock brushed against his g-spot, a tease in preparation for the more forceful fucking he knew was to come. The only sounds he could hear were his own moans and whimpers, the wet schlick of Blackbeard's dick sliding in and out of his gaping slit, the slightly forceful breathing as Blackbeard fought to keep himself from thrusting with wild abandon.
"Let's increase the speed a little, shall we?" Stede said, and it gave Basilica just enough warning before Blackbeard was pulling out a little farther and thrusting in a little deeper, a little harder, hitting that spot inside him on every thrust. Basilica's cunt squeezed around the cock inside him but it still wasn't enough to bring him to orgasm.
"Please," he said, his voice hoarse. He wasn't even sure what he was asking for at this point, not that it mattered. He was only the test subject and Stede would provide him with release when he chose, not Basilica and not Blackbeard.
Stede ignored him, of course, instead going about taking his measurements again, noting how wet Basilica had gotten and how his dick was hard and throbbing. Blackbeard's thrusts were carefully angled so he wouldn't provide any of that wonderful friction Basilica craved, leaving the subject's cock untouched. When Stede's gloved fingers gently pinched the head of Basilica's sensitive dick, the man howled and nearly came right then. Just as quickly, Stede withdrew his fingers and prevented him from tipping over the edge. The subject's need to cum was almost painful, but he wasn't allowed, not yet, and he knew he wouldn't be able to cum just from penetration.
Blackbeard's thrusts slowed to a stop and he withdrew fully, his cock coated in Basilica's slick. Basilica nearly sobbed at the loss, whether in relief or desperation he couldn't tell. Stede removed Blackbeard's cockring and replaced it with another one, this one adorned with a fat knot. The subject's hole drooled creamy slick as Stede lined up Blackbeard again, letting him press just the tip inside Basilica's gaping hole.
"Our subject has said that he cannot orgasm without stimulation on his cock, so I will also be using a pump on his little dick," said Stede. "The suction will increase the bloodflow to the area, making it highly sensitive and also increasing its size, though the effect is only temporary." Stede placed a cylinder on the subject's hard clit before pressing a button that started the suction. The flesh trapped in the cylinder plumped up immediately and Blackbeard began thrusting, moving hard and fast. Basilica wailed, a raw sound of need and ecstasy as he was used and filled, his cunt pulsing around Blackbeard's dick as it nailed his sweet spot repeatedly, the suction on his cock unrelenting, so intense it almost hurt. Blackbeard picked up the pace, his cock driving deeper into Basilica's cunt, the knot teasing his opening. Basilica's breath came in short, sharp pants as he was fucked hard, the sensation building and building; he wasn't sure how long he could stave off his orgasm.
The knot on the cockring popped into his hole just as Stede leaned down and whispered in Basilica's ear, "Now come."
And he did, his back arching, hole contracting, a wordless shout on his lips as he succumbed to the pleasure he'd been subjected to. The pace of Blackbeard's thrusts slowed again even as another orgasmic wave washed over him. Blackbeard had mercilessly pounded his g-spot and he couldn't hold it back anymore, his cunt pulsing and hips bucking as the suction on his cock continued. He felt like a raw, exposed nerve; pleasure mixed with the pain of overstimulation and he was sobbing, begging for it to stop, it was too much, he couldn't take it—and Stede was there again, saying quietly in his ear, "You can. You will. Come again for me."
Another orgasm ripped through him like a lightning strike, his muscles cramping as he clenched around Blackbeard's cock. His swollen dick twitched, trapped in that symphonic mix of pleasure and pain from the suction. He knew he was babbling, cursing and begging and crying with desperation even as lights exploded behind his eyes and he nearly whited out from the intensity of the sensations.
Blackbeard slowed even further, moving in shallower thrusts that gave Basilica's g-spot some relief from being pounded repeatedly. Basilica was just barely aware that the suction had been turned off and the cylinder removed. His cock was still throbbing, over-sensitive as it was exposed to the air again, and he was grateful that Stede and Blackbeard had been careful not to touch the swollen flesh. He thought that even a feather-light touch on his cock would be too much, too painful.
The pounding of blood in his ears subsided and his brain came back online enough for him to hear Stede saying, "...intense orgasms which take time to come down from. It's always important to check in afterwards, as some people will be done after that, and others may be willing to continue." A hand tapped his shoulder gently and Basilica grunted in response, words beyond him. "Are you feeling up to the final demonstration?" Stede asked.
Basilica took a brisk inventory of his body. His nipples were no longer tingling, just slightly sore; he was sweaty and his muscles ached a little from coming so hard and fighting the restraints; the slow, measured thrusts of Blackbeard's cock sliding in and out of his loose hole was enough to keep him both grounded and at a low level of arousal, but nowhere near enough to get him to orgasm again. The over-sensitivity of his cock lingered in a way that meant he probably wasn't going to be able to actually reach orgasm again—or at least, it probably wouldn't feel that good, but for now it wasn't painful and the pleasant thrum of arousal still in his veins was sufficient as it was. He could continue as long as he wasn't expected to come and his dick was left untouched, which he communicated to Stede.
"Wonderful, I won't ask anything of you that you won't be able to handle," Stede said softly. He turned to the lecture hall and said, "For the final portion, Basilica will take my fist in his cunt. The first rule of fisting is always, always add more lube. If you think you have enough, add more. Check in with your partner, go slow, stretch thoroughly, and add lube. Now, Basilica has been opened up quite nicely by my assistant here, and the orgasms have helped him relax." Blackbeard pulled out, his cock flushed almost purple and soaked from Basilica's juices as Stede pulled on a fresh pair of gloves and lubed up. Stede adjusted the camera before parting Basilica's labia, displaying the subject's stretched hole still leaking creamy slick, then slipped four fingers into the shining wet channel, careful to keep his thumb away from the man's cock. "When in doubt, stretch it out. But as you can see, with the sufficient amount of preparation, there's enough room," he went on, pulling his fingers out and tucking in his thumb so his hand formed a sort of duckbill shape, then sliding it in, rotating his wrist until his hand was fully inside, "for my whole fist. That will conclude our lesson. As you leave, you may get a closer look briefly or take a picture of our subject's cunt, but no touching."
Still wearing the knotted cockring, Blackbeard began removing the cart and other equipment, disappearing into the wings. The sound of many people in motion as class was dismissed reached Basilica, but he was mostly drifting in that floaty space, his cunt full and mind at ease. He could hear people expressing admiration, curiosity, marveling at him, and Stede's voice saying, "Oh yes, he's quite remarkable. We covered a lot today, but if he's willing to volunteer again, the class may get the opportunity to fuck him next time. I can ask him, once he's recovered."
His cunt squeezed a little around Stede's hand at that. He was interested, that was for sure. The original lesson plan for today had included the possibility of Stede fucking him in front of the class, but Stede hadn't been certain about the idea and was leaning towards using a fucking machine instead until Blackbeard had offered to stand in. Stede had liked that, and suggested a fisting demonstration to finish. With the way that Stede was so at ease just speaking to the students as they left with his fist buried deep in Basilica's pussy made him think that Stede probably would be willing to fuck him in front of everyone next time. Maybe he'd let the class have Basilica first, then claim him once everyone else was done.
There was a straw at Basilica's lips again and he realized the sounds of people around him had faded. "Drink up and I'll be taking my hand out, darling," Stede said. "Then I'll take the blindfold off, but keep your eyes shut. The lights are all off but you can take as much time as you need."
He drank, the cool water soothing his throat. He felt Stede's hand pulling out and became uncomfortably aware of the stickiness of the lube and spend coating his thighs, the soreness in his cock and hole. Then he heard Stede taking off his gloves, felt the cloth blindfold being removed, the restraints around his wrists and ankles unbuckled, the stirrups lowered. He was coming back to himself slowly, but he didn't think he could move yet.
"Here you go, mate, got a nice washcloth for you." There was Ed again, who had put himself in charge of getting aftercare ready, who had brought warm, soft washcloths to clean away the sweat and lube and fluids, along with cold packs to apply to Izzy's sore and swollen parts.
Izzy opened his eyes carefully. It was just Stede and Ed there, watching him with soppy expressions on their faces, still easy to make out in the darkened room. Ed's tearaway skirt was back in place on his nurse outfit, his cock out of sight. All the equipment on the cart had been cleared away and replaced with an assortment of snacks: some fruit, chocolate, sugary candy that only Ed liked and Izzy would begrudgingly eat because both Stede and Ed insisted that a blood sugar drop could come along with subdrop, and a big bottle of electrolyte-infused water.
"How was that?" Stede asked, helping Izzy to sit up.
He wasn't ready to debrief, not yet. He reached for the chocolate and said in a hoarse, slow voice, "Can we cuddle first? Talk it through later? It was good, I promise, I just... Need to come all the way back up first."
"Of course, mate," Ed said, his eyes soft. The two of them helped him out of the chair, letting him lean on them as they went through the door at the back of the lecture hall to the prep room where there was a couch big enough for all three of them to cuddle up, Izzy snuggled in the middle with an icepack on his crotch.
"Did you get to come?" Izzy asked, head resting on Ed's shoulder.
Ed chuckled. "Not yet. Stede's gotta decide if I earned it."
Izzy's brows furrowed and he elbowed Stede. "Eddie did a good job," he said, words still slow. "Y'should let him."
"We're cuddling you right now," Stede said, his hand rubbing Izzy's shoulder. "Ed can wait a little longer."
"I wanna see you fuck him in the nurse outfit," Izzy said, though his eyes were slipping closed. "With the skirt and the stockings. I didn't get to see him fucking me in the nurse outfit. 'S not fair."
Stede laughed, exchanging a look with Ed over Izzy's head. "Later, darling, I promise. I think we'll get plenty of use out of all of this. Besides, we recorded everything."