Click.
The voice recorder’s button was pressed by someone’s finger.
Someone in a white coat, noticeably taller than average for their kind. The coat though wasn’t like one could see on a doctor or lab worker, at least not the regular ones. The material had a considerable weight to itself, as well as a slight shade of gray. Being matte and several times thicker than regular fabric, it still was the default uniform material for this place’s workers. Rest of the person’s outfit was made out of another material - black, with a slight shine, creating highly blurred reflections on the bodysuit’s surface. The suit was covering the whole female’s body, following all the body curves, snugly hugging them around without any noticeable openings or seams. Presumably there was a zipper on the back. Or was it? Hard to tell. But the off-white coat sure had one instead of buttons, usually found on such clothing pieces, opened at the moment.
One might fail to find any reason for a uniform of that kind for, essentially, a product testing engineer. But all questions would vanish once the nature of said products showed itself, which the uniform was meant to protect the wearer from. Several incidents proved the effectiveness and all the personnel eventually got equipped with new gear which varied in forms, depending on the person’s role in the facility.
The mare’s voice filled the otherwise quiet room, accompanied with only a low hum from the computer on the table. After giving the screen a glance, she began her monologue.
"Product testing facility. Worker Theta-46. Experiment PT-4739. SP2 revision 3 testing, phase 1, attempt 2. Settings were adjusted according to results of previous attempt, experiment PT-4733. Enabling video recorder."
With a couple mouse clicks four cameras in the testing chamber were enabled and began recording a comprehensive footage. The room was very clean and all white, with blank walls, ceiling, and floor. Along the ceiling’s edges there were several relatively bright lamps, creating an even lighting in the room, optimal for filming with best detail.
Right in the middle of the room there was a dark object. Rectangular, mostly matte black with rounded edges. On top it had a relief, etched with golden pieces, creating a picture, stylized very similarly to Ancient Egyptian sarcophagus decorations, just with only one color, simplified. But that still was good enough to see golden outlines of two equine figures, facing each other, with arms crossed on their chests, golden cuffs all over their limbs and necks, too. The couple was depicted with their muzzles touching each other as if they were kissing, with a wide golden line covering those though as if the two were wearing some sort of a shared muzzle. Being minimal, the etched and relief picture was hard to understand completely if one didn’t know what this object was meant for. A few thick hoses and cables were running between the dark object and one of the walls, particularly the one with a one-way transparent window, behind which the testing engineer mare was making sure everything was prepared for a new test.
Being barely noticeable while closed, the door opens automatically on the right side wall, and soon two equine figures appear, walking into the testing chamber rather slowly, looking around, seeming to be confused and mildly intimidated. Both feminine, they stood a couple steps apart, soon shifting their attention at the only object present in the empty room, pretty quickly getting the grasp of its aesthetic. One of the mares tried to ask another something into the walls, but never got any answer as it seemed.
The engineer mare was watching fresh test subjects with interest, pulling up their profiles at the computer. As she could see, one of them was a transgender mare, while another appeared as a natural female. Since the former retained male genitalia according to their profile the current test would be first of its kind - previous runs featured only natural males and females. It was yet to be seen if the device would react properly to this kind of situation.
After a little while as the two test subjects grew a little more accustomed to previously unseen place - or probably just because the engineer wanted to have a better look at them before they go through the experiment - the mysterious dark object made a hiss as air rushed through a narrow opening as the pressure inside equalized with the surroundings. Finally, it was starting to reveal its nature, at least in some way - the nude couple would still remain as confused, if not more. A relatively small opening revealed itself at the top part of the dark object, with the bottom of said opening lifting right after, presenting an object of the same color scheme as the boxy object was. It had a golden ring in the middle, about a thumb in width, with two matte black appendages on each end.
With their confusion deepened the two mares were looking over the new item - or really only one of them was, the trans one, while the other was hiding behind their back. A sudden voice from all around the room made them both jump in place - a rather pleasant one, and really calm, but loud enough to catch the two off guard, especially in such a quiet room.
"Go ahead and taste this lovely little thing, you two. You will not regret it, I promise. Also it is required for our test here so if you don’t want to you’d be forced into it as it is way too late to take a step back. Now, please, go on you two, I’m watching very closely…"
That was the engineer mare talking. It was part of the protocol to try and convince subjects to comply as carefully as possible at first, and resort to force only if absolutely necessary. This was not one of those times luckily as the transmare picked up the smaller item and looked over it. The mare behind the glass smiled to herself watching that from several angles at once. “All smooth and to the protocol so far” - she said to herself, but also for the recording, noting that the other subject was in actual fear and might become a problem, speaking it all into the recoder she kept holding in her hand. Either way, the protocol required to continue.
The soft voice would give a short explanation on the small symmetrical object the unicorn mare was holding in her hand. Those appendages appeared rather soft, yet springy to the touch and were meant to act as oral plugs with the golden ring serving as a base element holding those together. The other mare had her wings flattering slightly while folded behind her back as she was still frightened and fairly unstable. Not that the unicorn didn’t notice that, of course she did, but she also knew that keeping calm would help not only her, but the pegasus next to her as well to feel calmer and have a clearer mind. Although the transmare couldn’t think of anything better but to comply. She took the double-sided plug in one hand, while holding the mare’s hand in the other, soon shifting to stroking her cheek.
"Hey, listen there. I am afraid too, just as you are. But you have seen more than once already that we have nothing better to do but to comply and follow orders. Just trust me and follow as you always do, please my dear…"
“So they actually are a couple, interesting…” the engineer muttered to herself, pulling a portable recorder up to her maw again.
"First stage in progress. Subjects are negotiating… But seem to be compliant so far. Looks like one is trying to make another to follow along. Good thinking."
As the tightly suited mare finished her phrase, the nude couple still was sharing the moment. The transmare ran her hand along the pegasus’ face, over the freshly healed bruise - the result of not following orders while in transfer. They both were quiet at this point and the unicorn finally let go of their loved one, holding the item in both hands and raising it to the eye level to have one last closer look.
The unicorn took one deep breath and finally pushed the elongated gag into their maw. It wasn’t hard as the appendage was not too wide or long, filling their maw just fine and not reaching the throat, just creating a filling sensation in her mouth. It felt comfy in a way even. She then gestured to their partner to get closer and do the same. And the pegasus did, after a little bit of hesitation, and slower.
At the very moment two muzzles got settled in against each other, with two mares now forced to look straight into each other’s eyes, the double-sided gag they were holding started to show its real purpose, with black substance spreading over both muzzles, completely and seamlessly covering them while adding a set of golden straps to each of the equine maws, finalizing their position against each other as they were barely able to shift, locked in an almost nuzzling position. On the insides of both mouths the plugs inflated to make a tighter fit and widened at the end so the both mares’ lips would get spreaded a little. The whole process was quicker than the mares could realise, ending up in clear confusion and a clumsy position.
"Phase 2 complete, subjects appeared compliant. The Silencer holds them in place. All parameters nominal, continuing."
The engineer took a quick glance at the screen while recording another message for the experiment log, then moving back to watching the experiment proceeding. Somehow it never got boring to her, despite testing the very same device for a while at this point. Probably it’s because this one is meant for couples, there’s more variety to things - that’s how she thought. As she did so, the lid was already opening for the two to see with their side vision what actually was that black box. And then they failed to get it right, still, as it was full of squishy and soft looking pads all over the place, dimly glowing amber gold, looking almost inviting.
Before the couple could realize anything, a set of relatively thin and fragile looking mechanical arms raised from the open sarcophagus. Those arms were moving quickly and were holding several objects already as they were emerging from their enclosures in the shell of the black box, not even noticeable at first. Both mares would receive matching sets of cuffs in fashion similar to the shared muzzle. Each cuff was a golden loop, seamless once closed with metal-looking surface, with a soft black padding inside, with each single piece being a perfect fit for the spot it was put on to. Pairs of cuffs were put on both arms and legs of both test subjects, three pieces per limb, being fitted to avoid joints and rely on stronger parts of the limbs.
Right after those were dealt with, the robotic arms moved on to the next stage. The engineer was keeping a close eye on the process through cameras’ feed, keeping her hand right over the emergency stop switch - a recent addition to the system after the last incident with both test subjects not surviving. The mare shook those memories off her mind and picked up the recorder again.
"Phase 3 in progress, cuffs already applied to both subjects. The Lovers’ place seems to be operating as intended. Mild resistance from one of the subjects emerged and was suppressed without an issue. Continuing the experiment."
Even though there wasn’t much to report, the mare had to do so according to the protocol. The manipulators meanwhile were putting the rest of the restraint kit on the mares. The biggest part of it was the neck piece, reminiscent in shape of ones that ancient Pharaohs used to have, rather large and mostly decorative. However in this case that piece was extended upwards, forming a solid posture collar. The materials it was made was the very same one the cuffs featured and allowed said collars to make a perfect fit, which they did on both the unicorn and pegasus mares. The pegasus was held in place by force of a few manipulators as she was trying to break free, while the unicorn accepted everything and could only watch and try to calm her loved one down, with little success while not being able to talk though.
Finally, differences were starting to show in the restraint sets. The pegasus mare received the last part of her set in the form of a sophisticated pair of wing binders, each of which consisted of several golden rings, similar to previously applied cuffs, but those were also linked with each other by some matte black fabric-like material similar to the soft lining each cuff had on the inside. After application each wing ended up in a separate seamless black sack supported by a set of golden rings, rendering those wings completely useless and finalizing the outfit for the natural mare. The trans mare, being a unicorn, was in for a different final gear piece. It was a rather small but beautifully crafted object, a purely golden cone which was meant to go over the unicorn’s horn. That cone had several crystals encrusted in it, and as it was slid onto the horn the cone would split in three parts, still connected with each other by thin curvy pieces, but now movable. The pieces would spread along the horn, with the biggest one landing at the horn's base, and the smallest staying almost at the tip. The unicorn could clearly feel herself weaker as this device was a sophisticated magic blocker.
The two mares were growing more and more confused by things happening to them as the experiment progressed. They were standing with their muzzles bound together, racial traits effectively nullified and with cuffs all over the body, only wondering when and in what way this weirdness will end. Both had a feeling there was more to come, and had shivers running across their bodies wondering what it might be.
The next step didn’t make the mares wait. The numerous manipulators that were taking care of them weren’t done yet, bringing out two golden belts, similar in design to the cuffs ponies had on. Not any regular belts though, but looking very similar to female chastity belts - just wider, heavier. The mares could only see those objects with their side vision again, but still were able to make out the general shape. The belts were opened and then fitted to their bodies, right after their legs were forcibly spread, yet still allowing them to keep balance. The differences between the two golden objects started to show there.
The natural mare would recieve a mostly regular chastity belt - a snug one, but not too tight, adjusting to her body by itself once put on and locked shut. The same black lining was there too, rubbing against her nethers comfortably. The trans mare on the other hand would get a modified belt, which wasn't all that common - it had a bulge on the outside for the unicorn's bits to go into, snugly held in place and surrounded by black springy softness. Both belts would be just as nicely fitting to the mares' bodies as the rest of the restraints. As this was done, the engineer would pull the recorder up to her mouth again, letting out a soft, pleased sigh before pressing the record button again.
"Phase 3 is complete with no issues, subjects are cooperative..."
The mare wouldn't say much there, letting out a soft, quiet moan once her finger lifted off the record button, with her free hand gliding across her tightly encased body. The uniform made her whole body smooth and easy to slide against, so her gloved hand would wander around, eventually ending up between her hips, starting to rub along her slit right through the suit, since the instructions strictly forbid to get out of the uniform at the workplace. The engineer mare kept watching the two as the device proceeded to do its thing, getting aroused by that, touching herself, letting out little moans, being all hot and needy, panting with her mouth half-open the whole time. She was enjoying herself, touching herself to the sight of the two test subjects being used for testing of one of the newest and most complex machines ever designed in KRD Labs. This was what was getting her going big time.
Meanwhile, the two mares, now that they both have received their restraints fully, had two of the manipulators grab at the posture collars as if the two ponies were on leashes. They were slowly getting pulled into the odd black box that has been fully opened for a bit now - the mares just weren't really given a chance to pay any attention to it. The amber glow coming off the square pads that were all over the inside of the box, protruding upwards slightly, being full of patented, locally produced gel that was used in numerous other products that were meant for prolonged wearing and lockups.
As the mares' collars were pulled on to the side and down into the box, the natural mare started panicking again. She couldn't do much at this point, but was interfering with the process. The robotic arms though were quick to get back to subduing any escape efforts, letting the mare know she's not going anywhere regardless of her attempts. The other mare could only watch her partner shaking in fear from such a close distance, trying to provide comfort, caressing her mostly around the face, ears and mane. She couldn't do anything either at this point, so the two would just slowly step onto the gel pads that appeared to be quite soft and a little hard to keep balance on.
Behind a one-way transparent window the tightly clad engineer kept enjoying herself. The mare's fear only excited her more, pushing a little louder noises of pleasure out of the tall mare. She fetched a magic wand style vibrator from table's drawer and put it to use right away, pressing it against her slit and clit and letting out a sharper moan this time from the extra pleasure, still watching the test running.
The mares would be forced to kneel down by then. And then to lay down onto the gel pads, which felt warm and comfy, pleasant to the touch despite the synthetic nature. As they laid on the side the gel would compress and alter its shape slowly, accepting the two bodies, letting them partly sink in it, calming the two down gently. They both were scared by what this odd machine was doing to them but the sensations the gel provided naturally toned down their emotions. The couple just kept staring at each other, touching each other while they could, while the split lid of the black box was starting to close. The inner side of the lid was lined with the same glowing gel pads, which would gently press against the two bodies inside. It got dark inside, but not fully, with the amber glow still providing some light for the ponies' eyes.
Repetitive moans could be heard inside the personnel room hidden by a one-way transparent glass wall. The engineer was matching her pleasure to the course of the test, getting herself closer and closer to the edge as the two test subjects were getting closer to being sealed away in an experimental sarcophagus, just like the minimal picture on its top was showing. As the lid clicked and hissed shut the mare would finally reach her climax, almost feeling like the sounds of the closing lid sealing itself were the trigger that gave her that sweet release she craved so much. Her encased body shuddered, she bent down halfway, feeling her suit absorbing the fluids dripping out of her marehood. Right after she would put away the vibrator and get back to the screens, which were showing a few graphs and text messages from the automated testing system. Those monitored the stats of the machine, but also the subjects' vitals.
"Phase 4 is over, subjects are sealed up inside the device... Pressurising in progress now."
The gel pads inside the sarcophagus would slowly start to inflate, filling up the remaining space inside with more liquid gel being pumped into them, creating a perfect fit around the two bodies occupying the prototype. It still was a weird black box to the two mares, which now was holding them captive, getting tight enough inside so they barely could more than just struggle a bit. As their bodies were fixed in place, they could feel something coming in and connecting to their belts and collars, as well as to the shared mouth piece. Before they could even try to process what was happening, the black lining of the cuffs started to spread, covering their whole bodies without seams, blanking them out, cutting off their vision and muffling their hearing. Not that they could hear more than just the gel creaking and burbling around. This would take the mares by surprise for sure, along with the fact that their chastity belts started vibrating and rubbing their most sensitive spots, while feeding some sweet smelling and tasting gas through the mouth piece. The gas would quickly ramp up the arousal of both ponies, leaving them to squirm in isolation of their shared, tight, yet comfy prison - gassed, teased, slowly losing track of time and forgetting anything but need for pleasure.
The engineer would take a good look at the sarcophagus once she made sure the last stage of the testing procedure went according to plan.
"Phase 5 is done, initial sequence is a complete success... Now to the endurance testing."
The mare would say into the recorder with a little smirk. She sat down in her chair, loading up the next testing sequence that would take a much longer time and would serve to show if the device is up with the KRD Labs' standards. She leaned back and smiled to herself, feeling tired and eventually falling asleep, happy to have a successful test and just a little envious of the two mares inside that thing, knowing what was prepared for them...