Minsuh, Jenny and Hyejin sprinted as fast as they could down the corridors of the high school, but their gigantic breasts made any kind of speed difficult to maintain. It was hard for any of them to ascertain their true size since their expansion had been so rapid, but it seemed like Hyejin’s breasts were something gigantic like a J-cup, whilst Jenny’s were even more engorged and swollen, around the M-range.

Both women were struggling to adapt to the enormous, bulging mounds that swung wildly on their chest, bouncing madly as they attempted to run down the corridor. This, coupled with the fact that they were both colossally turned on, and their tits were stuffed full of milk, desperate to be sucked out by the other, made focus and conversation difficult.

As they were running down the stairs, their massive mammaries jiggling almost comically, both were forced to examine Minsuh’s chest for the first time as it shook even more uncontrollably than their own. Now that they were up close, it appeared the 18-year old star pupil had been hit even harder than the rest of them – her breasts ballooned out in front of her like two watermelons, incredibly full and crammed with milk. Two tiny streams dribbled out the front of her huge nipples as her stupendously fat udders shook and swung and occasionally slapped each other with every movement she made. She looked at least an MM-cup.

Jenny and Hyejin looked at each other, concern in their eyes, which they both hoped was covering the arousal they both felt looking at the beautiful student’s preposterously large boobs. They were even bigger than Jenny’s, which were already far too big for her to get around properly, and the way the two women were feeling, another pair of enormous, sloshing, wobbling breasts was going to send them over the edge into unstoppable arousal. Maybe that had been Mudang’s plan all along.

Instinctively, Jenny tried to pull her shirt over her chest. It was a defence mechanism she’d been using all her life, as a way of recovering her composure. This time, however, her shirt was in tatters and her fingers bumped into the two enormous, fleshy mounds that loomed in front of her, the gesture completely futile. Hyejin saw the whole thing as it happened, and laughed.

Jenny looked up at her ludicrously busty friend, desire firing through her eyes, and grinned back, both sheepish and aroused.

“Guess I’m a little big for that.”

Hyejin smiled, biting her lip, her own enormous bosom heaving with each breath she took, her eyes flicking over to Minsuh’s incredible chest as they reached the bottom of the stairs.

Jenny understood and grinned back, her cheeks flushing. She was a little embarrassed at how turned on she was by this whole disaster. She didn’t know how to process the abundance of feeling that was building within her. Her breasts were feeling more and more full with each passing second. She dimly wondered, through the mists of arousal that were clouding her mind, what on earth was going to happen to them all.

Then she stepped into the girls’ dorm, and for the second time today, her mouth dropped open.

It was like a scene from the science-fiction film Alien, where victims are found with their chest burst open from the alien parasite. But instead of the 15 girls in front of them having had their chests burst open, their shirts and uniforms had been burst asunder by the universally gigantic breasts they were all, to a woman, sporting.

Every single girl in the study room whether they stood, whether they were huddling on a sofa, consoling each other, or sitting with their backs to a bookshelf, had absolutely humongous, impossibly swollen breasts. They were all at least the size of Hyejin, and some were nearly as big as Minsuh. They all looked completely ridiculous, their slender, 18-year old Korean bodies coupled with these preposterously large, porn star-esque tits.

Jenny and Hyejin stared agog. It was like the aftermath of a battle – pots and pans from the adjoining kitchen lay scattered on the floor, broken plates around them, books had fallen from the shelves, cushions from the sofas lay strewn, some massive-titted students lying on them, their mammoth mammaries bulging into the air as they breathed deeply, trying to work out what on earth had happened to them.

Jenny and Hyejin heard a cough behind them, and turned to see Minsuh holding a shaking arm up, pointing to the corner of the room, where a coterie of even larger-busted girls surrounded a figure lying down.

Hand-in-hand, Jenny and Hyejin approached the group, who shuffled aside, fat tits shaking, to reveal Miss Gi. Soojin Gi, a formerly slim and unassuming teacher who had been tasked with looking after the dormitory, was sitting dazed against a bookshelf, with a truly gargantuan pair of breasts sagging down onto her lap. They looked as big as Minsuh’s, maybe even slightly bigger. Their massive swollen size belied the fact that her nipples were a dark red, and looked like they were very sore indeed.

The girls around Soojin looked at the floor, or at their own enormous breasts, cupping them with amazement and guilt.

Soojin stirred, lifting her head up with a weary and confused smile.

“I’ll tell you everything.” She said. And she began.

Here it is, just as Soojin Gi told it.

***

Soojin was coming back to the dorm after a long day. She adored the school, and loved working here. Everything was ordered, peaceful and harmonious. She strolled down the corridor towards the dorm, looking forward to a quiet evening of reading and study.

Minsuh, the slim and impeccably well-behaved head girl walked past, giving Soojin a shy wave. Soojin smiled and waved back, before entering the study room at the base of the dorm.

There were about 15 18-year old girls sitting around, in various states of repose. All were of course wearing the same school uniform of white blouses and black shirts, along with modestly-colour bras. Not that many of these girls needed them with their slim physiques, but rules were rules. Most of the girls looked up and waved a polite hello. Soojin smiled back.

Soojin made herself a cup of tea, and sat down at the table, cracking open the spine of her book.

Suddenly the sky went dark, and the entire building began to shake. Girls sat up on their sofas and chairs, and from their places on the floor, and began to murmur to one another, as the shaking intensified. There were loud noises and shouting and banging from the classrooms upstairs.

Soojin stood up, arms raised, maintaining a sense of order over proceedings. She was a well-liked and respected teacher in her early 30s, who despite a very prim and proper appearance, had famously been known to let her hair down and have a drink with the students from time to time. This only made the girls respect her more.

Just as she was calling for all the girls to calm down, she was struck to the floor by a bolt of some kind of energy, and lay there, writhing. Girls started screaming, and rushed to her aid, only for more and more bolts to fire down, pinning everyone they hit to the floor, where they lay there, unable to move.

Soojin had no idea what was going on, but desperately tried to get to her feet. She was unable – whatever was holding her was holding her fast.

—

Here the facts get a little confused, but with prompting from Jenny and Hyejin, and the huge-titted girls that squatted around her, their ginormous balloons resting on their knees, Soojin managed to piece things together.

—

Almost instantly, everyone’s breasts in that room started to grow. They knew not how, but everyone started to expand, to blow up. None of them knew of the unleashing of Mudang that was taking place upstairs, but they certainly felt its effects.

As Soojin lay writhing on the floor, she felt her own chest start to expand. The modest black bra that contained her small breasts began to be pulled away from her figure as Soojin’s bosom began to engorge with milk. She could feel the weight building on top of her as she lay on her back, her tits swelling larger and larger on her chest.

Her bra began to feel tight as her tits pulled it further and further away from her, stuffing it with more and more engorged breast as her bosom ballooned outwards. She started to moan and groan with pleasure as her fat jugs expanded, and she knew her bra was about to burst open.

At the same time, Soojin started to hear the soon-to-be-familiar sound of small bra clasps breaking. She had no idea what the popping sound was, but she realised now it was the first wave of bras being destroyed by the growing breasts that were expanding beneath them.

Shortly afterwards, her bra was busted apart by her swelling boobs, which were looming large on her chest as they expanded bigger and bigger. Soojin was terrified, but was starting to feel the same mixture of horror and lust that Jenny and Hyejin knew all too well, as her breasts ballooned ever larger.

Her blouse rustled and heaved as her swelling breasts packed it fuller and fuller, her big fat tits hauling against it as they grew, shaking and wobbling on her otherwise tiny frame. As her buttons started to be pulled apart by the swollen, milky mounds that bulged beneath it, Soojin finally found herself able to stand, released from the bolt. As she hauled her growing, increasingly heavy form to its feet, her view of the dorm was beyond shocking.

18-year-old Korean girls were everywhere, their breasts swelling and groaning out of their shirts. Bras were splitting and bursting as enormous tits poured through, massive milky mammaries bulging against straining shirts as some girls desperately tried to unbutton them against the colossal onslaught that swelled and heaved against their uniforms. The ones who tried to unbutton usually couldn’t – their tits were already so huge, the buttons were impossible to grab; they were pulled too tight by the huge tits that swelled beneath. These girls could do nothing but stare in horror as their chests blew up bigger and bigger, rising to their chins as they expanded.

Soojin’s chest was becoming incredibly heavy, so she leaned on the table where she’d been drinking tea just a moment ago. Her massive udders shook and wobbled beneath her, bulging bigger and bigger with every moment. She looked back up to the room, completely clueless about what do with this terrifying scenario, but feeling uncontrollably turned on by it all. She felt her crotch grow damp.

Another round of bursting bras popped and Soojin turned to see a group of three girls pile out of the kitchen, the sound of clattering plates and pans accompanying them. These girls could barely move, their swollen, G-cup breasts bulging out of their incredibly tight shirts. Soojin could see the fat mounds of flesh peeking through the gaps between their buttons as their enormous breasts expanded bigger and bigger, stuffing their shirts way beyond capacity.

One of the larger girls, which Soojin recognised as Minsuh, was desperately trying to pull the buttons off her absolutely packed shirt, but her colossal tits wouldn’t let her – the buttons were too tightly stretched by her phenomenal breasts. One by one, her buttons began to burst off.

If this scene was reminiscent of a battle, the buttons that started firing in all directions were its bullets. As most of the girls began to blow up to a size bigger than their tight-fitted blouses would allow, their buttons began to pop off. But so forceful was their expansion that these buttons fired at a considerable velocity across the room. Each button burst was followed by a moan, as the girls felt the slight release of tightness in the imprisonment of their rapidly engorging breasts. It was an unavoidably arousing sound.

Minsuh fell against the table, the two girls following her pulling at her shirt as her incredible tits bulged beneath, still swelling and growing every moment. Now that a gap was created between the buttons, the two other young women (Seoyeon and Yeeun, both sporty, fun-loving girls with formerly very athletic figures) could get their thin fingers on either side of the blouse, and could tear it open, even as their own huge tits (though not the size of Minsuh’s) began to burst through theirs.

And Soojin saw the scale of Minsuh’s breasts for the first time. They were enormous – at least an H-cup, but maybe even larger. On her tiny, slender frame, they looked positively ridiculous, but instead of finding them unpleasant, Soojin found her arousal only deepening.

She evidently wasn’t the only one, as Seoyeon and Yeeun pounced on Minsuh’s newly-exposed globes, and, grabbing one fat breast each, began to suckle on her huge, swollen nipples. Far from objecting to this, Minsuh encouraged it, pushing their heads deeper onto her teats, lying back on the table, moaning and screaming as the two girls went to town on her enormous melons.

Soojin watched in amazement – her own breasts still inflating madly, her buttons comically stretched as her bosom expanded bigger and bigger – as the two girls appeared to consume milk from Minsuh’s enormous breasts. It would make sense – Soojin’s own tits seemed to be getting heavier and heavier, and this rapid increase in size had to be to do with something – but it was strange how some girls in the room were desperate for the milk, and some were desperate to have it sucked from them.

Just as Soojin started to analyse this bizarre hierarchy, her breasts surged forwards, inching larger and larger, and her buttons began to burst off. She staggered to the bookshelf, the table being taken by the milk-guzzling threesome, and leaned against it, her breasts getting heavier and heavier, and feeling dangerously full of milk. Her blouse continued to burst open as her breasts reached new heights of size and weight, and she felt her next button pop off, revealing a huge mass of cleavage just beneath her chin. She was truly enormous.

And suddenly, she understood Minsuh’s desire. Looking at the gigantic, bulgingly stuffed scale of her J-cup balloons, she wanted them sucked. They were still growing, but they were too full of milk. She needed someone to empty them a little, so they could grow larger.

Two girls sat nearby, with (comparatively) moderately-sized, H-cup tits packing their shirts. They were sitting together, marvelling at each other’s incredible-sized breasts, poking them with wonder and amazement, as they slowly began to swell larger.

“You two! Soobin and Jimin! Here now!”

Soojin spread her legs against the book shelf, bracing herself as her tits swelled larger. They were so heavy and engorged now, and her shirt wasn’t going to last much longer. Her buttons popped open, one by one, as her phenomenal breasts grew larger, the size of small watermelons on her otherwise very slim frame.

As more and more buttons were popped off by her gigantic breasts, her nipples began to grow harder and harder, and dribbles of milk emerged at the tips of them. Soon enough, her shirt was all but destroyed, as the huge scale of her breasts was made apparent. She felt at least a K-cup now, but who knew her true size.

Looking at each other, Soobin and Jimin instantly each grabbed an enormous, swollen tit with both hands and started sucking, massaging the preposterously engorged mammary to stimulate lactation.

And Soojin knew pleasure like she’d never known as her enormous breasts began spraying milk into the mouths of two of her shyest students. A tiny, distant part of her brain knew this was unbelievably illegal, but everything else in her incredible, bulging body was 100% on board. Her beautiful, colossal zeppelins fired milk out at a huge rate, filling the two girls’ mouths with liquid as they pumped and pumped.

The powerful milking didn’t seem to make much of a difference to Soojin’s expansion – her tits continued to grow, swelling and filling up with more and more liquid. Indeed, Soobin and Jimin had to keep readjusting their mouths over Soojin’s enormous nipples as their size continued to increase. But it was having an effect on the drinkers.

Their breasts weren’t nearly as huge as most of the other girls before they started drinking, but once the thick, viscous liquid starting pouring down their throats, their expansion increased rapidly, as their breasts bulged fatter and wider out of their shirts.

They were amongst the few girls who hadn’t burst their shirts open, but as they gobbled and suckled on their teacher’s still-growing, preposterously large jugs, their own started to catch up, bursting through their skin-tight blouses, as their already huge balloons blew up bigger and bigger, approaching inhuman proportions. They rubbed their own swollen jugs as they expanded larger and larger, still gobbling milk from Soojin, who was experiencing ecstasy like she’s never known.

And as the room filled with cries of pure delight, and more bursting of buttons, and moans of pleasure and the sounds of sucking and swelling and heaving and growing, suddenly the skies ceased to grow dark, and Soojin felt the expansion of chest finally start to slow. Her tits were something ludicrous like an M or MM-cup, and swung in front of her like over-filled water balloons, but at last their growth was finally winding down.

And she seemed to be just about returning to her senses, despite the intense pleasure she felt at having two students gobbling milk at her teats.

Wait. Students were sucking her breasts!? This was inappropriate beyond measure!

Soojin pushed the girls from her stupendous bosom, even as more and more milk dribbled out of her fat, overstuffed tits, which were heaving and growing on her slender form even then. The girls looked disappointed, even distraught, but soon the spell began to lift from them as well, and they started to look embarrassed and confused.

Soojin slumped down at the base of the bookshelf, her massive watermelons resting on her lap, still huge and full, dripping a little milk from the ends of her erect, raw nipples.

She surveyed the devastation – girls everywhere were starting to come to, looking at their incredible breasts, hefting them in their hands in amazement, looking at friends with horror as they realised they were sucking on their tits (or being sucked on) just a minute ago. Debris lay scattered like confetti.

And in the middle of it all, star pupil Minsuh stood up from the desk, her incredibly large tits (only a little smaller than Soojin’s, the teacher noted with a touch of pride that both shocked and scared her) and ran out of the room. “I’ll get help!”, she called as she raced away, her beautiful breasts shaking manically as her thin form sped out the door.

And Soojin leaned wearily against the bookshelf, as students came to her for comfort. She had no idea what had just happened, but her students needed help. She had no idea if she was even the one to provide that any more.

And shortly after that, Jenny and Hyejin had arrived.

Jenny and Hyejin looked around the room, at the incredibly busty Korean girls, their shirts and bras all utterly destroyed, stumbling around the place like insecure, chronically shy porn stars, and realised they had a lot of work to do. Something unreal had happened today.

But first, they slumped down by Soojin, putting their arms on her shoulders, feeling desire flood through all three bodies, trying to savour it just a little even as they felt the effects of Mudang start to fade.

But even as it did, they all felt the artificial desire stoked by the goddess (not that Soojin anything about that yet), replaced by something genuine, something real and profoundly strong that the sight of all these humongous breasts stirred in them.

But they pressed it down and fought it with everything they had. For now.

They had a lot of cleaning up to do.

—

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