Todd's parents told him that five years old was too young to have a Pokémon yet, but he didn't want to wait. A few of his friends said they already had their Pokémon, inherited from their parents, and he didn't want to wait until he was eleven to get his first Pokémon. And luckily, he had a plan! His parents had deliberately withheld knowledge of how to catch a Pokémon so he didn't get any ideas, but he did happen to overhear it involved a "Poké-ball". Some would say that's not enough info, but Todd just knew he had solved the puzzle! Now, he was ready to go out and get his first Pokémon!

And so, he snuck out from his bedroom window - not a difficult feat, since it his bedroom was on the first floor - and headed into the back entrance to the garage. Before long, he was armed with all he'd need to catch his very own Pokémon. But where would he go? He didn't want to stray too far from the house, lest his parents find out. He definitely didn't want to go to the nearby forest, as he didn't want to get lost in there. But at the same time, he had to search somewhere, right? He didn't just want any old Pokémon. He wanted the best, most cool-looking Pokémon! But where would he find one?

Upon walking back out of the garage, though, he discovered that he was in luck, as a Pokémon seemed to have lost its way and ended up in his backyard! Tod had seen a few Pokémon pass through or near his backyard before, mostly birds, but none looked anything like this one! It resembled a young, pale yellow-colored horse, standing taller than the child at a height of 4'7", much larger than the other Pokémon Todd had seen in his backyard before. And indeed, he immediately knew that this Pokémon was the one he wanted to catch.

One of the first things Todd noticed about this Pokémon was the hair. He'd seen Pokémon with fur before, but none with what might be likened to a human's hair like this one had. And in fact, it was by far the most unusual "hairstyle" he had ever seen. On top of its head was thick orange hair, taller even than the rest of its head. At the back of the hair it became much thinner, coming to a point behind its head almost like a natural ponytail. On either side of its hair was a thick line of dark blue hair, complementing the orange nicely.

The next thing he noticed was something in front of hair hair: On this Pokémon's forehead was a large, curved horn, ending in a sharp-looking point. Then, the cyan fur on its neck caught his attention. The cyan color extended up to the back of its head, as well as down to its chest and upper back, where it became particularly thick. In the same color was the Pokémon's tail. Then, there were its hooves, colored the same dark blue as the sides of its hair.

Overall, Todd knew one thing for certain about this Pokémon: He simply had to catch it!

The Pokémon looked at the child, seeming perplexed as he pulled out an air pump. So, this Pokémon didn't know what the pump was for? Perfect, that would make this even easier. And so, he dashed forward and tossed the nozzle right into the Pokémon's mouth, causing its eyes to open wide with surprise.

"Yes!" Todd shouted, before turning on the pump. Right away, he could see that his plan was working. At first, the Pokémon was clearly confused, but then confusion gave way to alarm as its belly started to bloat. Despite the size of the pump, its belly was growing quite quickly, becoming rounder and rounder. The Pokémon blushed brightly, eyes still wide, as it took a step back, the first of several steps it would take. Had it been thinking clearly, it might have turned tail to do a more proper run. But it was so surprised by the proceedings that it couldn't help but stare at the human child and the automatic pump that was being dragged along as it retreated.

At first, its steps were unimpeded. It wasn't weighed down by its growing belly, after all, given that it was being filled with lightweight air. But a few steps, its belly has grown enough that it was pushing a bit against its legs, making its steps more awkward. Its steps then became more like a waddle as the belly touched the grass below, barely at first as the grass tickled his belly. But then its belly began pressing against the grass below, making each step more difficult until finally its belly had grown large enough to push its hooves off the ground, preventing it from taking a single step more.

At that point, Todd knew he was victorious. There was no way this special Pokémon would be getting away now! But nonetheless, it certainly made an effort. Todd actually found it quite cute how it wiggled its legs in vain, trying to touch the ground that was getting further and further out of its reach. As its belly grew, its legs were pushed out farther and farther, going from nearly vertical to nearly horizontal. But while its belly was growing outward, its limbs were not being pushed out to compensate. As a result, more and more of his legs were covered by his own belly and hidden from view. Its belly had grown so much that the Pokémon's uninflated self could have easily and comfortably fit inside.

The Pokémon began blushing again, this time for two reasons. First was the fact that it had now fully sunk in that it had been quite thoroughly defeated. Not by a powerful foe, but by a small child with a strange device. And not only that, but it could easily tell that it looked quite silly like this, rendered so thoroughly helpless by its own expanding belly. It was a good thing that no other Pokémon were watching. At least, none that it could spot.

The other reason he was blushing, though, was because of a surprising realization it had come to. It hadn't given it proper attention before, being too busy with trying to escape this strange predicament, but now it was impossible to ignore. Embarrassing though it was to admit to itself, this was one of the most wonderful feelings the Pokémon had ever felt. The feeling of fullness yet lightness, the feeling of its skin being pulled tight by the ever-increasing air within, and even the comfort of resting surrounded by its own belly combined into a truly wonderful experience. A thoroughly embarrassing one, certainly, but also a wonderful one.

Just as the Pokémon felt its belly starting to reach its limit, Todd turned off the pump, then hugged his new Poké-ball's giant belly, prompting another blush from the Pokémon. With its belly having been inflated so large, the Pokémon now towered over him, easily over twice as tall as he was. Its face, some of its hair, and its horn were visible, as well as the ends of its hooves and the tip of its tail, but other than that all that was visible was its big, round belly.

Meanwhile, his parents had just noticed that something was amiss. They'd called him for dinner, but no answer came. They opened his bedroom door, finding he was no longer in there. Instead, when they looked out his open window, they saw that Todd was in the backyard with what looked to be the largest ball either of them had ever seen. Except... it didn't look like an ordinary ball. Even aside from its size, it wasn't quite a perfectly round ball. Rather, It looked like someone had taken a Pokémon and inflated it to a giant size. In fact, it looked specifically like... Keldeo?

It was! They had no idea what the story was behind it, but whatever had happened the Keldeo seemed quite embarrassed about the situation, especially when it looked over and saw that it now had an audience in the form of the child's parents, prompting a blush from the helplessly inflated Pokémon.