Dot is a curious, ditzy Froslass that jumped into the gigahyper life when she inadvertently found the reason why others in her reality have grown the way they have: there are growth sources everywhere. Just about anything one can do that'd seem like it'd grow her tits, they did, and she was curious (or dumb) enough to take enough of it in excess. The resulting pool of growing methods grew her breasts and the bow on her back, which she marked with a circle so others can tell who she is from a distance, and gave her the ability to alter their size as she saw fit, with a few limitations. Working her way up the growth ladder, she came to be part of a select group of Pokemon from her reality that have grown far above and beyond any conventional measuring methods, and in her case, she was the milkiest out of the bunch. Not a second went by where she wasn't letting out incalculable gallons of fresh, cold milk, which the others gladly took advantage of and repaid in kind. It helped that she was always wearing a huge smile and had a carefree nature about her, which surfaced whenever she wasn't fawning over just how huge and full she was.

She picked up an especially good friendship with Fawn, a Celebi who often took one of Dot's nipples all for herself more than the others, despite whatever size differences in their busts existed. Eventually, Fawn opened up about her sister Flora and her maid position, saying that Dot could make a good maid herself with her attitude and her penchant for milking non-stop. Of course, this was said in a pleasure-filled stupor, with Fawn getting off on the idea of Dot having to go for extended periods of time without a drop of her milk being let out. However, Dot, gullible as she was, didn't pick up on the notion, and set her sights on trying out this job. She was, after all, still too small.

As it turns out, interdimensional travel requires a job permit, and finding a local Hyper Busty Pokemaids chapter is a bit hard when the natural size of your tits swats away everything within a 180-degree angle in front of your chest. Dot managed to overcome this by compressing her size down, as most of the other 'mons can do, though her lactation levels remained. After flooding a few universes (one on accident), she managed to track one down in a remote location and get through the process without totally destroying the planet it was on with catastrophic floods. It was here that she learned of what a maid entailed, though she skipped some paragraphs here and there.

Upon receiving her uniform and accessories, Dot realized she may need to make some adjustments. Not only would she have to keep compressed, she'd have to completely cut off the flow of her milk, which was something she hadn't done since she started growing in the first place. Luckily, since hypers are so common both in this dimension and the one where Flora resided, the regular attire allowed for milk-resistant space-constricting pasties in a variety of shapes and colors; over time, it's expected that she learn to hold in her milk so that she can go pastie-less for clients that request she be without them. She went with circular white pasties, which were the same shade of white as her breasts, rendering her nipples nearly invisible - and trapping all the milk inside with barely a bulge visible.

Dot kept the maid outfit on as much as she could, especially around Fawn and the other gigahyper 'mon she came to become friends with (Fawn especially went through a growth spurt of her own upon seeing Dot dressed up for the first time), and eased into the first few days of her new position well. Curiously, the interdimensional travel wasn't a detriment on time nor did she have to worry about physical positioning, as she would warp to where she was needed at the time she was needed. While convenient for her, she felt something was off with the world she was 'invading', and the problem rested within her boobs. Were it not for the maid outfit, she felt as if she could grow much larger than she ever was before, but she never had the time to investigate why. She tried to ignore it and focus on her maid duties, finding her masters cute with how they treated her, and their insistence on growing her larger than she already was even cuter.

Despite her best efforts, however, Dot never stopped lactating. Her spacious pasties filled with all the milk she was letting out, though not a bump could be seen on the outside that reflected the amount they contained - just like her breasts being as compressed as they were. Eventually, she confided to Vail, a fellow Ghost-type gigahyper, about her problem, which Vail at first thought she was crazy for thinking it was a problem at all. After explaining her situation, the Mismagius gave her a simple solution: a spell to close her nipples. While Vail warned her of the difficulty of breaking the spell, Dot simply asked for the ability to not lactate, even though she knew it'd only help to make her grow faster.

One spellcasting session later and the Froslass's breasts were really feeling full. At the very least, she could dispense of her pasties - Vail helped take them off and store them "for later" - and now she could engage with more clients in her maid job. The range of faces she saw increased, as did their desires to inconvenience her with her own pleasure. Not a day went by where she wasn't subjected to taking lactation pill after lactation pill, being put on a milking machine, or smiling through gropes, kneads, and rubs. Each passing moment she spent enduring the pleasure, she knew that she was growing larger within her outfit. Still, with her carefree nature, she didn't seem bothered on the outside; on the inside, she was distraught between craving more and releasing the growing pressure in her chest.

By the time she decided to approach Vail again, she was sure she had surpassed all the other gigahypers in size. How could she not, with how full, how strained they were after weeks of unending growth? She expressed she was afraid of releasing them in case she was, in fact, too big for their reality to handle. Were she to continue in her position, she'd grow even further, but Dot really needed to relieve her tits of their pent-up milk, to feel milk passing through her nipples again. Her nerves demanded it, as did their incessant throbbing, yearning to be opened to let loose the flood inside. Chiding her for going back on the spell, the Mismagius, devious to see just how big Dot could get, crafted a brilliant idea.

"Well, Dot, you're not making this easy. But here's what I can do: I can send you to a different dimension, separate from this one and the one you work in, and you can let loose in there."

What Vail fails to mention, however, is that she is more than a little bit knowledgeable about dimensional travel, and has figured out a few secrets behind their existence.

In short, each dimension has an effect on the size of the breasts of their inhabitants; Dot, Vail, and all the other gigahypers' size and growth alone makes them larger than most other things, and are treated special by the specific dimension they are in. Each dimension is assigned a specific level, and relates directly to each of the gigahypers' size and growth. Size is treated as normal in the Level 1 dimension, but just by going up to Level 2, the size of their breasts is instead dependent on their rate of growth as it would be in the Level 1 dimension; this applies when going from Level 2 to Level 3, where their size is dependent on their growth acceleration in the Level 1 dimension, and so on and so forth. Dot, Vail, and the other gigahypers live in a 'pocket' dimension crafted by Vail herself, getting to as close to an 'infinite dimension' as possible, where they can be uncompressed but control their size with no hinderances to them at all. Yet, Dot's maid work takes her to just the Level 1 dimension, where her growth is hardest to contain. Were Dot to ever release a small fraction of her size during her work, it's likely she would cause the destruction of the Level 1 dimension simply by overflowing all of reality with her titage.

Agreeing quickly to any kind of release, Vail transported herself and Dot over to the Level 3 dimension, where the stress on their breasts was lower by a significant degree. Knowing Dot was going to flood all available space soon enough, she offered the same white pasties that Dot had worn previously, which she agreed to put on; surely they were spacious enough to handle a LITTLE flood. Not a few moments after putting them over Dot's nipples, which Vail had to do quickly by pulling down the maid uniform around them, the Froslass released her size, swelling enough to rip the maid outfit and leave it in tatters as the remains spread across her growing bust. Dot moaned in delight, feeling the milk slosh around inside better now that she was big enough to feel it all, but she noticed she wasn't growing as large as she thought she would; she seemed to cap out at about a planet in size for each tit. Still, she could feel the milk roil about in an attempt to break the spell placed on her.

Vail started chanting a spell to weaken the seal on Dot. After a few minutes of pushing on her breasts, moaning, and gritting her teeth, Dot finally broke through it, unleashing a flood into the white pasties covering her nipples, filling them many times larger than the amount that she had filled them before during her maidwork. While before they barely showed a hint of a bulge with Dot's incredible milk output over the course of her workday, now the pasties started showing signs of rounding out after only a few seconds. Still, Dot wasn't satisfied just yet; she had much more milk to let out. So she increased her flow, further, and further...the pasties began to look more like filled water balloons, still snuggly attached to her breasts, and yet filling further. More. Bigger.

Eventually, the pasties were so filled that they matched Dot's planet-sized breasts in size. Yet, this was only the first push. She took a second to catch her breath, but immediately took to round 2 with a bigger hug on her massive tits, and those planetary pasties grew faster with the increased output. Despite letting out so much, her breasts weren't shrinking...in fact, they were still growing, albeit slowly. The pasties, on the other hand, were growing at monumental speeds, surpassing a small star in size before she was over with the push, the twin white orbs still firmly attached to her nipples despite the force of her lactation.

Sighing in relief, Dot patted her breasts. They've come so far from when she started, and felt so amazing...but they have still far yet to go, she thought. Just imagining what sizes she'd get up to in a year's time or more made her antsy for more growth, more size, more milk. Vail giggles ominously from behind Dot - everything was going according to her plan. She had been watching Dot convulse and squirm in pleasure, her own purple chest not even large enough to eclipse a house in this dimension with her compression.

Over the next few seconds, Dot felt her lactation slow, though not of her own accord. Something was reaching a tipping point, but the Froslass couldn't tell what or why. Push all she could, she wasn't getting another pint into the pasties. That's when all the milk that had filled the pasties began to reverse its flow - right back into Dot's nipples. The Froslass screamed in pleasure, the milk quickly swelling the itty bitty planetary breasts up, past a gas giant in size, two, three...she felt as though she was going through a massive growth spurt, accelerating faster and faster in size despite only ending up as large as a star, one of which was nearby to compare. The pasties quickly shrunk back down back to their normal size as the milk was deposited, still proportional to the Froslass's bust with no hint of nipple showing beyond them.

"I don't know what happened, but I'm fuller than ever before! I NEED to lactate - NOW!"

Dot gripped her expanded breasts, trying as hard as she could to flood the pasties once more, and finding success like before to push them beyond full with her nipples spraying milk with a much higher output than before. It wasn't long before the pasties not just eclipsed her breasts again, but even how large the pasties were before in proportion to her breasts. One push with her hands on her breasts led to the pasties rounding out to half of the solar system in size. The second push put them at around half of the entire galaxy. Still full yet, and still growing for that matter, a third pushed them out farther to around a hundred galaxies in size each, taut and full with her milk. After a few minutes of violent gushing, Dot was in a cold sweat, her face beat red, sprawled out on her tits as if she was undergoing the most violent orgasms known to ghost-kind. She could feel the pasties start to push back again, despite wanting - WANTING - to lactate as hard as possible. Vail continued to press her house-sized bust against the Froslass' own, as if teasing her to try harder.

"I, I really need...need to...hrk!"

While her breasts were still screaming to let out milk, the pasties had simply gotten too full in comparison, with the star-sized tits taking on their milk once again as the flow reversed. The Mismagius' cackling ringed in Dot's ears, but she couldn't think with the overpowering feeling of her breasts accelerating further and further into space. Instead of her tits waiting to be completely filled by the nipples this time, they tried their hardest to push back, and managed to do so, still growing as they filled the pasties back up, overfilling them once again as they shoved aside galaxy after galaxy in their path. At millions of galaxies large, Dot's breasts were a speck compared to the fabric still attached to her nipples, but still she yearned for more to be released. Releasing more, and more...she could only fill the pasties up to be around 50 billion galaxies large before they again took control and rapidly filled their host's breasts once more, yelling and screaming all the way.

"Perhaps we should try another pocket dimension..."

Dot's breasts were continuously expanding by this point, having temporarily lost the feeling to push back against the tide. In her pleasure-filled stupor, she could barely notice reality twisting around the two ghost-types as Vail transported them to the Level 5 dimension, which had the effect of shrinking the Mismagius' bust to their normal, two-feet-around size, while Dot was still around the size of a full country (with her pasties back to normal as well), transported onto a flat, barren planet. The Froslass slowly regained her composure.

"Are we...back home? Why...f-full! Full! Too full!"

Quickly realizing the taut feeling in her breasts, Dot again pushed on her tired nipples to expel as much milk as possible, only to have the pasties absolutely balloon up in response. Just the first push from her arms coaxed enough milk out to fill the pasties up to hundreds of galaxies in size, which didn't last long as the flow fought back. Eventually coming to a standstill, the Froslass tried as hard as she could to lactate harder, but that only helped make her nipples open up...and with the slightest hint of letting up, milk rushed back in. The solar system was, of course, nearly instantly obliterated by the rapidly growing breasts, with Vail pressing her chest up on Dot's back, against her ruined maid's outfit - though with her shrunken breasts, she was now within touching distance.

"Are you loving this, my sweet~?"

The pasties were filled once more to trillions of galaxies large before they could have enough force to push back against Dot's increasing milk flow. The span in which Dot could fill a universe with her milk was getting lower by the second. Vail once again quickly transported them into another dimension before Dot could completely fill their current one, now at Level 7 and ending up at breast sizes similar to the sizes they were at upon entering the Level 5 dimension.

"I-I...need more...p-please, it feels...sooOOo goooooood...!"

With a strained yet lusty smile, the Froslass once again attempted to release her milk, only for the pasties to quickly shoot up past billions of galaxies large. Again, the pasties pushed the milk back in, accelerating the Froslass' growth further, and again Vail transported them further on in dimensions, now at Level 10. Here, Dot's breasts were the size of cars, and yet she could still feel them filling on the inside.

"So much...so much...!"

A foreign energy gripped at the Froslass' pink nips, preventing them from lactating again, and the pasties were pulled off. Vail, still behind Dot, pushed up against her back and kissed her from behind.

"You've done so well...for a newbie~. Pushing past everyone else for their first time, and still you'd be lactating if I didn't have a hold on them."

Milk filled Dot's nipples, only being held back by the ghostly aura denying any drop form or escape. The nubs rounded out, filling what little space they could, and the Froslass squirmed, enjoying every second of it.

"Instead of filling those little pasties, though...how about filling me instead~?"

The Mismagius floated up, then in front of the Froslass' bust, muttering incantation after incantation. Suddenly, reality shifted, but only in a heartbeat - she was making the process of transporting the two into other dimensions automatic, setting up a trigger so they'd zip to the next before causing too much destruction. Her breasts also expanded, ghostly sigils surrounding them, though whether it's a temporary boost or a release of her true size couldn't be felt. The Mismagius' nipples also appeared, with the same pink aura holding them shut. Still, the tits grew to a size where Dot's nipples could easily be inserted into Vail's own, the purple and white breasts squishing up against each other after easily fitting into one another. The two enjoyed the mutual docking with pleasure-filled moans echoing around them, though they both knew that the spell on Dot's nipples would have to be released sooner or later. Quickly ensuring a psychic link between the two nipples that would exist regardless of size difference, Vail released the hold.

The Mismagius quickly filled, boobs expanding to several googolplex galaxies with just the first spurt of milk before she could attempt to lactate back.

Dot then was pushed into the Level 11 dimension with the backflow, filling half of the universe inside with her nigh-infinitely productive tits before she could fight back.

Vail filled up the entirety of the Level 11 dimension within a few seconds, and then the Level 12 dimension as well with Dot pushing milk hard enough that fighting back was useless.

...They'd be like this for a while. Tens, hundreds, thousands if not millions of dimensions later, they still were at it, growing exponentially faster, growing exponentially more milky. Vail wouldn't admit - couldn't admit - that by that point, every other gigahyper had the advantage of seniority, and even by the end of their make-out session the smallest of them was large enough to outsize Dot by trillions of dimensions. Still, she found it cute and admirable that Dot was pushing herself to these lengths.

After the two had recovered enough, Vail took Dot to see the other gigahypers in the infinite pocket dimension the Mismagius had crafted to help stabilize and shrink her tits to a reasonable size. Despite the fun she had just had, Dot and a few of the other gigahypers had an impromptu milk-induced growth session, showing Dot the fun they could have without worrying about their breasts growing too much in their unique world. As this would be her new home, Vail had to ensure she could live comfortably with the rest of the gigahypers here...though the purple ghost did need to hide her nipples so as to prevent an accidental leakage, a common situation most of the gigahypers endured. Dot elected to not hide hers, which was also common amongst the gigahypers, though she did have to put on the pasties to hold her unstoppable milk flow. Vail even threw in some enchantments to help the pasties hold an...'infinite' amount of milk, though Dot quiped about finding out soon if they really were infinite.

Fortunately, Dot still had her job as a maid, but she did need to order a new uniform. She couldn't wait to meet Flora and Fawn again and show off even the most miniscule fraction of her size...and with a much more flexible outfit that could contain all of her boobage.