Pneumetroid

The crash landing had gone well.

If such a thing could go well at all, by any standards. However, Samus Aran had not been expecting to survive the reentry to Tallon IV, much less a multiple-G crash landing on the planet’s surface. Her ship had obviously been damaged in the massive explosion that consumed the Space Pirate ship in orbit. Her only question was how extensive the damage was. As her visor came back online, Samus could see rain drops hitting the surface of the visor.

“Shit,” Samus thought, “my ship must be a wreck.”

Indeed, her personal spacecraft was in bad shape. The engine had burned up somewhere in the atmosphere, there were multiple hull breaches, and the cockpit’s reinforced windshield had shattered upon impact in the large canyon. As the deluge of precipitation poured into what was left of the small vessel, Samus began to pull herself off of the deck and inspect the damage.

Then another realization hit her.

Her power suit was malfunctioning.

This was arguably worse news. Ms. Aran had been a bounty hunter with the Federation for years, but she was the only one that had a power suit like hers. This technological marvel of Chozo innovation was Samus’ gift from the now-extinct race. When she became old enough to fight the Chozo’s oppressors, she donned the power suit, which completely integrated with her lithe body, allowing her to sustain attacks of varying severity. The suit was vital to her missions, and although it was very strong, it was not indestructible, and Samus would likely perish in battle without it.

As Samus stood, the power suit began rattling off a list of malfunctions it had incurred. Missile launcher damaged. Charge beam damaged. Morph ball damaged. The list went on, until Samus finally interrupted the computer by saying, “What actually WORKS?”

The list was disappointingly short: power beam, scan visor, and her radar. Samus frowned. Her ship was damaged beyond immediate repair, and the lack of appropriate materials in her area did not improve the matter. Furthermore, retrieving those materials meant traveling to other parts of the planet, regions that were unsafe considering the current state of her suit. Staying in the Overworld, while safe, would mean being stranded indefinitely.

Of course, there was no other choice but to retrieve the materials. The emergency beacon on the ship had been destroyed, and Samus had not been transmitting her telemetry so as to not be detected by the Space Pirates.

Throughout the Overworld were various elevators which linked to different regions of the planet. Samus figured that the only place where she could get viable raw materials for her ship was in the Phazon mines. The Overworld was mostly floral, the ruins were mostly rock, and all other regions were either too hot or too cold for her power suit at that time. Samus also knew that the mines would be swarming with Space Pirates by the time she got there, and the Phazon was dangerous enough by itself. However, she didn’t have much time, since having an operational ship was necessary before starting on her mission. After performing a final inspection on her ship, Samus set out for the mines.

As Samus approached the mine elevator, she took notice of a Chozo inscription above the door leading to it. It appeared to be weather worn and was difficult to read. However, she was able to make it out:

“Those who fight for the Chozo may find reinforcements deep within the ruins.”

Samus raised an eyebrow. The Chozo written language was extremely complex and detailed, and only the Chozo were capable of keeping up with all the intricacies of the alphabet. As such, attempts by alien species to reproduce the writing could always be proven as counterfeits. Skeptical as to the writing’s origin, Samus scanned the stone-carved writing with her scan visor. The visor’s analysis surprised her – taking into account the effects of the weather on the stone carving, the inscription was authentic Chozo.

“How can this be?” Samus thought to herself. “Either someone in the Federation has mastered Chozo writing, or this is one hell of a coincidence.”

Not one to disregard the accuracy of her scans, Samus then headed off for the ruins. As a child among the Chozo, the ruins had once consisted of the main Chozo temple on the planet. Now, however, all that was left was a wealth of deteriorating stone structures devoid of life. It always saddened her to return to the ruins, as the memories of a once-bustling mecca typically flooded her thoughts.

A few moments later, Samus arrived at the elevator to the ruins. As she opened the door, a thick green haze pervaded her field of vision. Activating her scan visor, she passed through the doorway and let the door close behind her. She couldn’t detect anything, much less see anything in this fog. Plus, she did not find the elevator where she expected to find it. Something was amiss.

As she turned back towards the door, a tremendous wave of nausea consumed her, and she fell to her knees. Had the suit’s air filtration system malfunctioned? The suit wasn’t reporting any such error, neither had it fed her bad rations. Nevertheless, the sensation of bile rising in her esophagus was unmistakable, and Samus pulled her helmet off and vomited on the cool, damp ground.

Forcing herself to sit up, Samus began to regain her normal breathing. With her helmet off, she noted that there wasn’t a particularly offensive odor accompanying the fog; she must have fallen ill due to something else. The rain persisted, causing Samus’ long, blonde hair to become saturated, looking as if she had just stepped out of the shower. With the nausea passing and her stomach once again stable, she shakily brought herself to her feet and retreated to the door from whence she came. Helmet in hand, she tapped the door control with her arm cannon, causing the door to telescope open.

Samus’ helmet fell to the ground.

What greeted the bounty hunter on the other side of the door was something unexpected. Something that was harmful to Samus anyway, but was particularly so in her current vulnerable state. Samus gasped and backed away from the door.

It was a Metroid.

Normally, one Metroid by itself was no big deal. Samus had killed lots of the genetically-engineered galactic jellyfish in her line of work, and this one shouldn’t be any different. However, in the back of Samus’ mind, she knew something was wrong. First of all, the elevator wasn’t where it should have been. Second, she becomes ill for no apparent reason. And now, a Metroid bouncing gently in the air ten feet away, waiting to attack its helmetless and impaired prey. Samus did not wait to see what the Metroid’s intentions were, so she gritted her teeth, raised her arm cannon, and fired at the creature repeatedly.

Nothing happened.

Anger and adrenaline gave way to mild astonishment and disappointment as Samus realized the arm cannon had never fired. There did not appear to be anything wrong with it externally. Of course, the power suit diagnostics said it was operating perfectly, but Samus had reason to suspect the diagnostics routines now. After briefly inspecting the business end of the arm cannon, she returned her attention to the doorway.

The Metroid was gone.

A cold chill of fear tickled Samus’ spine. The Metroid could be anywhere, most likely shrouded by the green fog. And here she was, a sitting duck, a prime target. Gathering her courage, she brushed a soaked strand of hair out of her face and slowly crept toward the door.

The air outside the door was clear as before, and the rain was coming down in sheets now. Stepping through the doorway, she did a quick survey of the premises, finding no Metroids. Thinking quickly, she turned and sealed the doorway to the elevator. A smug smile crossed Samus’ face. Metroids may be capable of doing lots of things, but they cannot open doors. Pondering where next to look for the elevator to the ruins, Samus turned around to continue her search and screamed.

As the sly Metroid attached itself to Samus’ midsection, she felt no pain, but struggled with how to get the leech-like organism off of her. If her Morph Ball capabilities were operating normally, she could simply roll up to shake the pervasive creature. Hitting it with the arm cannon or her gloved left hand seemed to have no effect; the Metroid’s grasp was too firm. After a few seconds, the Metroid had penetrated the power suit’s armor and sank its claws into Samus’ lean stomach. Samus screamed out in agony, then blacked out.

Some time later – whether it was seconds, minutes, or hours later, Samus did not know – Samus awoke flat on her back, the rain pelting her in the face. Her stomach felt sore, but the Metroid and any evidence of it were nowhere to be seen. She sat up, but again was overcome with nausea and laid back down. Her head was swirling with thoughts that she could not separate; whatever the Metroid had done to her, the “sting” had some sort of sedating effect. Samus laid in the rain until the pain in her midsection subsided.

However, as the pain left, an entirely new sensation came. It was a sensation of… pressure? She assumed that she had some minor bleeding due to the Metroid’s claws, and the power suit was applying pressure to the wounds to stop the bleeding. Samus simply laid there as the pressure slowly increased, content with letting the suit do its job.

Seconds later, bio warnings and alarms started going off in the suit. Samus perked her head up and looked at the display screen in her collar. The suit was detecting a foreign substance within Samus’ body, but wasn’t sure how to go about treating or removing it. The alarms shouted at her relentlessly, all the while Samus merely watched the display with a curious look on her face. The sedatives controlling her were potent, and she was unable to get a full grasp on the situation.

After about 30 seconds, the suit’s alarms ceased and the display went blank. The suit had finally made its decision: if it couldn’t kill the substance within the bounty hunter’s body, then it would at least not nurture it, so the suit deactivated itself. A loud hiss was heard as the suit decompressed, the suit’s latches released, and the entire front of the suit swung up and out of the way of Samus’ body. Bringing her head up, she caught a glimpse of what was really happening to her.

Underneath the power suit, Samus’ was adorned with a custom-fit blue jumpsuit. And underneath the jumpsuit was the stomach of a woman with child. At least, that’s the way it looked. Samus struggled to stand up and looked down at her clothed stomach, which was rapidly becoming soaked by the rain. Pressing on the bulge in her suit caused her hands to sink only a little, and the growth felt firm otherwise. As Samus held her hands against her distended tummy, she could feel her skin and the polyester of the jumpsuit slowly but steadily spreading beneath her fingers.

It wasn’t the power suit that was putting pressure on Samus. It was Samus that was putting pressure on the power suit!

Deep in her mind, Samus knew that she should be scared, angry, frantic – something other than the passive, inquisitive attitude that she was exhibiting. Instead, she merely watched her body transform in ways she didn’t understand. She didn’t know what was happening, or what she was becoming, but she was determined to see it through.

Samus continued feeling different parts of her stomach as it continued billowing out. The pace had quickened a bit, and in just a couple minutes’ time she looked as if she was nine months pregnant. Behind her, her buttocks began to grow as well, rounding first, then expanding outwards. Her ample breasts and hips soon followed suit as well. The jumpsuit began to grow tight and slightly uncomfortable, causing Samus to try to shift her weight.

“Weight?” Suddenly, Samus understood what was happening. As she shifted her weight from one foot to the other, she realized that there was less weight to shift. She was filling with air! But why? How? She did not know of any Metroids that were capable of doing this. Regardless, this experience would make for a very interesting entry in the Federation Science Journal. Perhaps one of the many cum-laude’s that worked for the Journal could tell her the science behind how this had happened.

In the meantime, Samus’ body now represented a ridiculous caricature of a female. Her stomach, normally rigid with muscle, was rounding out now, and had surpassed her hips in width, while its curve extended from between her enlarging breasts down to her vagina and was starting to advance on her butt and back as well. The inflation of her mass extended to her arms and legs, stiffening them and sending her into a spread-eagle. The jumpsuit still had not burst, but the seams along her sides were straining their hardest. As her legs continued to spread open, it became increasingly hard for Samus to stay standing.

And still the rate of growth increased. Finally, the blue jumpsuit burst open, allowing Samus’ already massive body to expand further. Only a rain-soaked pair of white panties clung to her southern hemisphere as her body began to round out. Her breasts, once veritable mounds on the surface of her chest, were rapidly flattening onto the prevailing curve of her body. Her arms and legs inflated up further before her blimping form advanced on those regions, leaving only her hands and feet. As her legs disappeared and her feet left the ground, she felt her crotch push further into it. The panties, impossibly stretched across her globular form, finally snapped, causing Samus to bounce comically and roll onto what had only ten minutes ago been her back. A light wind caused her to rock gently in place.

About eight feet wide, the formidable bounty hunter had been completely transformed into an air-compressed human blimp.

And Ms. Aran was still growing at a rapidly increasing rate.

Looking up at the grey sky, her long, wet hair dangling lazily below her head, and unable to move anything except fingers and toes, Samus’ mind was aflutter. She was aware enough that she could hear the sound of every raindrop resonate within her massive body. She could feel every raindrop as it crashed into her severely pressurized form and rolled down the circumference of her body or between her far-distant labia. She could feel her skin continuing to stretch further and further, faster and faster with every second. However, while Samus was physically aware of her surroundings, she had passed the point of coherent thought.

“How is this…” her mind rambled. “Impossible… so HUGE… will it stop? … I… drenched… a trap! … my suit… can’t move… explode? … the pressure! … feels great… very… relaxed…”

“Relaxed?” Even that last thought caused Samus to pause for a moment. For almost as long as she could remember, she had been dealing with numerous Federation missions, numerous Federation commanders, and numerous bio warnings from her power suit. She led a nonstop life. And now, free from the confines of her suit and free from the Federation’s rules, Samus was nothing more than a large inflating mass resting in a rain shower. And yet, it instilled a very strong sense of peace and comfort within her.

“Yes… that’s it… comfortable…” She smiled.

Her growth was reaching exponential levels, and her body had ballooned to approximately 25 feet wide. As she gazed lazily skyward, her skin pulling and stretching in all directions, feeling as if she could grow forever, Samus saw a small round object appear in the sky. As it got closer (was it coming out of the sky or was she really expanding that fast?), she recognized it immediately.

It was a Metroid.

Another one followed it, and then another, and then another. Samus watched as numerous Metroids descended from the sky and out of her field of vision, somewhere on the other side of her ridiculously blimped body. However, this time, she did not have the presence of mind to let herself become afraid. The parade of Metroids never ceased, as it seemed like an endless line of them was approaching her.

Then Samus felt something and gasped. It took a moment for her to get her breath back before the sensation registered.

A Metroid latched onto her vagina.

It seemed illogical, even irresponsible, to think about sex at a time like this, but the sensation was so strong, so… good. Even her suit hadn’t been able to produce sexual stimulations like that. Plus, with the heightened sensitivity of her body, which was now approaching 100 feet in diameter, it was impossible to ignore the sensations. This would definitely have to go in the Journal report. She began to feel other Metroids latching onto her all across her surface, and as each one attached itself, her inflation increased even more. Then the unthinkable happened, and Samus screamed out in surprise and delight.

The Metroid on her vagina had just pushed itself inside.

Somehow, although the rest of her body was growing to previously impossible proportions, her vagina remained the same size. The feeling of a Metroid inserting itself into Samus’ body between her labia drove her absolutely wild.

And then another Metroid did the same. And another one followed, and then another, and then another. Her pressurized labia expanding, contracting, expanding, contracting, without giving Samus time to recover. It was like clockwork, and very soon Samus was driven into a relentless series of orgasms, causing her titanic body, 400 feet in diameter and probably 20 seconds away from 1,000, to quiver and even bounce lightly.

The Metroids within Samus were to serve a purpose – they weren’t just there for her pleasure, after all. A new, lighter gas began to pervade the inside of the enormous Samus blimp, and within seconds her round form, long since devoid of hands and feet, was floating skyward. Soon there were multiple forces at work within: the already-present inflation from the first Metroid, plus the inflation from the new Metroids, and now the differences in air pressure were stretching Samus’ body even further. As she rose further into the sky, she was a mile, maybe two miles across and wasn’t about to stop there. Of course, Samus herself was unaware of this; she had passed out long ago from sensory overload.

Suddenly, all of the pneuMetroids attached to the upwardly-spiraling Samus detached themselves, and those inside began to squeeze their way out. Their task had been completed, but that wasn’t the only reason.

Metroids may be relatively simple organisms, but all life forms know what happens when unfiltered ultraviolet rays reach flesh.