It was an energized celebration at Saunders University High School. All the girls were stuffing themselves on the mountains of fast food provided for the event and having a good time talking to one another. The party was thrown in honor of a new generation of Sensha-dō tanks developed and being tested at their very own school! It promised to be the easiest of tanks for modern competitors to operate, allowing them to focus more on the fun skill-based parts of the sport, tactically positioning the tanks and accurately firing upon the enemy.
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The testing wouldn't take place in a competition with other schools, instead taking place at Saunders school itself, with the new tank facing off against waves of the old model tanks to get a measure of how many old tanks one new one was roughly equal to in terms of battlefield control.
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More importantly, the testing would determine if the tankery club would be allowed a large grant from the school to continue the development of a production model of the tank. In order to protect the validity of the test the only person in the club that knew so much funding was on the line was Kay herself, this would prevent the older model tanks from pulling their punches during the trial to fake a more favorable result. The shareholders knew that if the crews only thought their honor as Sensha-dō practitioners was on the line, they would be sure to bring their best to the testing.
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As commander of the Saunders Sensha-dō team, Kay was given the ability to choose her crew on the maiden voyage of this new craft, but instead of hand-picking distinguished members of her team, she put it up to a random raffle that only the freshman newbies to the club could volunteer themselves for. Whenever one of her fellow officers asked her why she chose to do it this way, she only placed her finger on the side of her nose and said, "You'll see!" which had irritated quite a few of the senior members.
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At the celebration, a bottle of champagne was broken against the side of the tank for good luck, and the crew for the tank was announced. As expected, they were all girls that nobody knew, one of whom even admitted that one of her friends had volunteered her for the raffle without her knowledge, but she was still happy to have won and was excited to get to see how the new tank worked.
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On the day of the trials, the other tank crews were given the head start to set up where they wanted to be in the wargame field. Many formed ambushes at chokepoints or grouped up with other tanks in formations that were decided the day before. A couple of especially motivated tank crews even decorated their tanks with twigs and underbrush as camouflage.
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Once the others were all in their places, Kay's team was given the go-ahead to enter their tank. Once they were all inside with the hatch locked behind them, the other members of the crew found that there was nothing for them to do, the loader and ammo rack had automated arms for loading, and the communications system was linked up to the commander's seat. The other crew members didn't even have seats! In fact, it seemed like the only person who was meant to be in this vehicle was the commander herself, who was currently stripping down to an american flag bikini that she wore underneath her uniform to this mission for some reason.
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"This new style of tank is the on the cutting-edge of tankery safety, no more knocking around and getting bruised when the tank rolls over. Instead, the crew travels in the stomach of the captain!" Kay explained the situation succinctly, but her crew still seemed a little confused, so she continued, "I've been assured that it is a perfectly safe way to travel, the tank takes care of it all, so there's no need to worry about acids. I'll swallow the remote controls you'll be using after you go in. All you've got to do is strip down to your underwear and climb in. Don't be shy now."
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The underclassmen still weren't completely convinced, but they could tell that their senior wasn't joking by now, so they reluctantly started to stip down in the cramped tank interior. "Stockings off too, I don't need all that fabric getting stuck in my inte-, I mean I don't want you ruining a good pair of your stockings."
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Kay leaned back in the padded captain's seat and patted her thighs to call the first of her crewmates forward. The girl obediently came over and straddled Kay's lap, and Kay reached out and grabbed her hips, making the girl blush. She had raven-black hair in a bowl cut and was wearing panties with hearts and stars patterns printed on them, an immature choice for a girl her age, but she probably didn't expect that anyone would see her panties that day.
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"S-so now what?" she asked, embarassed from sitting in such an intimate position. "Just put your hands in my mouth and and keep your eyes squeezed shut, I'll take care of the rest." Kay answered, "No matter what happens, don't struggle in there, or else you might rub off the protective coating they put on the walls of my stomach. We'd ALL hate if that happened. I'll give you the rest of the instructions once all three of you guys are in. It'll be easier to explain once all three of you have your controls."
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The black-haired girl nodded and gulped nervously before putting her hands together in Kay's mouth. Kay swallowed her down slowly and sensually, taking her time to savor every inch of the girl's body while keeping her calm. After a couple minutes of gagging and slurping, the girl was deposited into Kay's tummy. "Uhhhh, Miss Kay? It feels tingly on my skin. Are you sure it's safe?" Fear made the girl's voice tremble and her voice was muted from the layer of flesh around her, so Kay answered in a raised voice, "You'll be fine if you don't move, I promise. Just stay curled up in there. The tingling should go away after a bit."
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Kay called over the next girl. She was a blonde and was shorter and flatter than the first one. She wore plain panties without a bra because she was too flat to need one. Kay leaned in as close as she could and whispered to her conspirationally, "She's being a bit of a scardey-cat in there. Why don't you go in there and spook her once for me?" An impish smile appeared on the flat girl's face, and she nodded, already giddy about what a funny prank it'll be.
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Kay had no problem slurping her petite body down, and she could taste the fruity shampoo that she must've used a lot of that morning. Once she was in Kay's belly, she reached out and pinched the scared girl's sides suddenly, causing her to cry out in fear. "Stooooppppp, that was scaryy, wehhh." The first girl sobbed out while the flat girl giggled with glee, both muffled inside Kay's stomach.
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The last girl left on her plate was the girl who was volunteered by her friend to join. She was a plump brunette with large assets. It seemed like her bra and spats were a size too small for her, as her spats squeezed her asscheeks together, and her breast flesh was spilling out over the top of her bra. Kay tried to hide it, but she licked her lips a little in anticipation of how the girl's soft body would feel on her tongue.
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With only one girl left to go Kay got a little bolder, saying, "You're gonna have to take your underwear off too; I can already tell they're gonna cause way too much friction going down!" This was, of course, complete nonsense, but Kay said it with enough authority that the plump girl believed it, and soon she was stark naked and hiding her sensitive areas with her arms timidly.
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The plump brunette approached Kay shyly, taking sidling steps so she didn't accidentally expose herself before she needed to. Kay's gut jutted out significantly from its two occupants, so the plump girl was going to have to slide herself across Kay's belly to reach her captain's mouth.
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Kay reached out and grabbed the plump girl's hands to drag her towards her mouth. The girls in her belly complained from the weight on top of them, but they followed their captain's orders and didn't struggle. The plump girl's nipples had become erect from the cold, and Kay relished the coarse, scraping feeling of the hardened teats rubbing against her tummy's tight skin.
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Kay opened her maw in front of the plump girl but offered no other assistance, silently insisting that the brunette should feed herself to her. The inside of her belly was warm from the two other girls, so her breath was hot and steamy as it blew towards the girl's face. She opted to go headfirst, putting her hands on Kay's shoulders for balance and steadily pushing her face through the strings of saliva that ran down from the upperclassman's teeth. "Uuuu, it's so slimy and warm," she complained. "So gross! I can't believe I agreed to do this..."
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Her soft flesh tasted heavenly on Kay's tongue, but rather than savoring her exotic meal, she chose instead to angle her head upwards in an attempt to scarf her down as quickly as possible. The girl's belly wasn't fat, just a little chubby, but Kay was starting to have trouble choking such a volume of girlmeat down. Far past the point of needing to pretend not to enjoy consuming the girls, she grabbed handfuls of the plump girl's ass and used the pinched up skin as handles to further stuff the girl down into her gut. "Ahn!" The girl cried out, "Please don't grab me there, Kay!" Not listening, Kay continued groping the girl's wide ass to finish stuffing her in, sighing contentedly once all three of the girls were completely sequestered inside her stomach.
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Kay absentmindedly patted her belly as she got to work starting up the tank's systems. She had to clamber on top of her belly to reach the main controls, but in the tight space of the tank's cockpit, once she had summited her mountainous gut, her bare back was pressed flat against the cold metal roof of the chamber, so she had to pull the adjustable control panel upwards to more easily reach the buttons and joysticks. The girls in her stomach were starting to ask questions like, "Where are our controls? I can't see!" and "What are we even supposed to do in here?" So Kay turned on the tank's engine, drowning out their already muffled voices completely.
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While it was hidden under her belly, her pussy had been moistening with each girl she ate, and the vibrations from the tank's engine had only made it more needy for attention. She wiggled her hips in an attempt to surreptitiously grind one out on her belly until she remembered that nobody else in the room was going to be capable of telling on her in a couple of hours. Realizing this, she started to hump and grind against the sac containing the three freshmen with more gusto.
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The three girls were packed in the stomach like sardines, sandwiched atop one another and coated in the viscous fluids of the stomach. They were scared to move because of what Kay told them about the protective coating on the walls being scratched off if they did, but when she started humping her belly they were forced to move against their will, their knees and elbows instinctively resisting the wavelike motions.
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"W-what is she doing out there!" "Get your tits off my face! It's getting hard to breathe!" "Stop struggling or we're all gonna die!" "My legs were all warm, but now I can't feel them... What is going on..."
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The girls were crying out in fear while trying their hardest not to move under Kay's onslaught, but it was no use. There was no such thing as a protective coating for the stomach that prevents digestion.
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"Can you hear us? We want out!" "This is another joke, right? It's not funny anymore! I don't want to die!" "Whatever I did I'm sorry... Please let us out?..."
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On the outside, Kay was piloting the tank with skill. She had already eliminated a small group of enemy tanks and an ambush that followed. The tank's advanced detections systems helped to identify where the enemies were far before line of sight was made. All Kay had to do was stick to the shadows and keep her aim steady, and the old model tanks fell by the dozens, sometimes before they even knew their enemy was there.
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Any time she fired, the resulting shockwave sent ripples across her belly and sent stomach acid spraying all over her captives. The ammo was stored in small compartments around the interior as well, so whenever the autoloading arm moved around her to grab one, it rubbed against her belly skin on the way. All the tank's systems were giving her an impromptu belly massage, and with every enemy she dispatched her belly grew softer as the girls bodies inside became less defined. Still aroused from the sensations, Kay would kiss her belly and kick her legs in the air behind her after every shot she took.
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Eventually the old models team caught on that ambushing the new model tank wouldn't work, and they attempted to bunch up their remaining units into larger packs to attack her all at once, but by then it was too late. Kay finished up the trials with flying colors for the new tank, the few shots she did take being glancing blows that bounced away due to the tank's advanced armor.
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...
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At the second celebration for the end of the trials, the new tank was featured prominently on the stage, but the crew was nowhere to be found! While the other students ate and celebrated, waiting for the guests of honor to arrive, a maintenence crew with a crane came on stage and started to undo the bolts that were keeping the armored carapace on. Then came the big reveal, the lights were dimmed, and the crane slowly started lifting the armor away. It was dark, so only a spherical silhouette could be seen, but then the spotlights kicked back on, and there was Kay! She was laying atop her belly, her fattened tits and ass straining her american flag bikini. One of the technicians passed her a microphone, and she promptly pressed it against her belly, giving the audience a listen to the churning and burbling of digestion happening within.
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GWWWRURRMMMBBBLEEssshhhhhs CHWURBBBLBLBLereeeeeereeerrrrrr
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The audience was shocked by her form, and a silence weighed heavily upon the ceremony grounds as they waited to hear what the meaning of this sordid display was.
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"Hello everyone!" Kay raised the microphone to her mouth and addressed the audence, "It seems like my assistants were excited to see you as well! Even after being reduced to nothing but mush, they're still so talkative!" To accentuate which assistants she was talking about, she grabbed a big handful of her belly flesh with her left hand and jiggled it around affectionately, causing the chyme within her stomach to swish and glug in response. The movement dislodged some of the gas that was trapped in her gut, and in the resulting belch two pairs of saliva-soaked panties came flying out and landed with a splat on her enlarged stomach.
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The crowd gasped as they were given confirmation of what they had expected, but didn't want to believe. She had eaten and digested all of the other crew members, and it must have been at the start of the battle too considering how far along their absorption had progressed! Her energetic smile seemed incongruent with her bloated body that she was claiming contained the remains of three of their fellow students, so a few members of the audience thought it was some kind of joke, but those thoughts were quickly dispelled as she continued addressing the crowd.
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"That's right! Not only had this tank defeated all of the old models in combat, it had done so with only a single member in the crew! With this new tank we'll finally have enough positions for the most popular position of tank gunner. I know it sounds too good to be true, so our lovely assistants here have helped to provide some credibility to my claim by becoming fodder for my tummy! They couldn't have helped me out in the tank any as soup, could they? Please, give a round of applause for their good work in this display game!"
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The crowd was silent, and the ambient sloshing and bubbling sounds of digestion were picked up by the microphone again now that Kay's speech was over. It took a second, but eventually a few members of the audience began to clap, and soon the whole crowd was applauding in excitement!
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...
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The display had been a complete success, and the club had been given the go-ahead to produce the rest of the new line of tanks, and all it cost Kay was writing three apology letters to parents about their daughters being lost in Sensha-dō practice, not to mention new clothes since her assets had grown multiple sizes larger. As she finished writing the third impersonal apology at her desk in the clubroom that night she gazed longingly at the three pairs of panties that she had collected from her prey. The star patterned and plain panties were a little tattered from the acids, but the plump girl's spats that had never entered her stomach were still in perfect condition.
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The spats that had once stretched tightly over a curvy freshman's bulbous rear now held a position of honor in front of the other two smaller pairs of panties, each pair having its previous owner's name and photo attached for her to better remember her meals by. Kay hadn't expected to enjoy the experience so throughly as she had, but as she sat at that desk late at night when everyone else had already left for home, she began to gaze longingly at the framed trophies, sighing dreamily as she remembered the taste and experience of that once-in-a-lifetime feast. Her face flushed as she remembered the feeling of the liquefied girls pumping through her small intestine, and she cupped her softened potbelly with one hand while groping one fattened tit with the other in guilty passion, knocking the apology letters to the floor in the process. As Kay bumped and grinded awkwardly, not used to maneuvering her newly massive body, she began daydreaming of ways to partake in that forbidden fruit once again. Plotting ways to dethrone her deliciously naive late kouhais from their status as once-in-a-lifetime meals...