The lake was still and eerie for the most part. Mirvanna looked out over the stagnant water, numerous boats with collapsed hulls moored for the rest of their days along a creaky dock, til they finally rusted out. Walking was very treacherous, all the wood from the dock had rotted away years ago, although rusted iron support beams beneath them still provided a horizontal ladder of sorts. It wasn’t unlike the cattle grating farmers used to keep hooved creatures from crossing a gateway. So Mirvanna clutched the railing, cursing whenever the bars poked between hir toes and generally moved across with the utmost of awkwardness to hir gait. Shi could only hope other kirin salvagers had found the docks to be too much bother in this condition, and thus avoided them. Although humans and Xul’ir would have had no issue clambering across them, neither of which shi wanted to encounter. Hopefully they’d be just as afraid of a kirin.

Mirvanna made a small jump from one bar to another, teetering and grabbing at rusted metal for grip. Hir hooves clanged, echoing through the structure, but shi was nearing what would hopefully be a prize. Having been in sight since the beginning, and still visible at the end of the dock, was the conning tower of a sunken ship. But not just any ship; a ship designed for sinking: a submarine. 

While it was likely that the hull was as rusted through as everything else at the dock and the machine had been thoroughly picked clean, this submarine was large enough to house a nuclear reactor. It’s story and its purpose, remained unknown to Mirvanna, although the dock was seemed to be of military origin, judging by the concrete reinforced buildings and the twisted armaments still protruding from other boats.

None of these wrecks would have been able to leave the lake when they’d been in service, but it wasn’t a bad area for testing things, especially if you didn’t want to be noticed. The surrounding hillside was quite steep, and the forests thick. Keep a large perimeter, and make sure no one flies over to take pictures and it’d be a rather secret area. Mirvanna had reached the end of the dock now, having to drop where there stood the top hand railing of a ladder that no longer existed. 

“Clang!”

Leaping down, hir hooves left visible imprints in the rusted hull and the kirin paused, wondering if this was the wisest venture. Shi didn’t have to fear the radiation as a genetically modified creature, but ironically, a simple tumble could put hir in a deal of misery. Lake plants swayed in the water all around the submarine, between them printed in still bold white letters “NR-III”. Mirvanna turned hir attention back to a hatch on the top of the submarine, kneeled atop it and attempted to spin the release mechanism. Naturally, it didn’t budge whatsoever, something shi’d expected; physically shi wasn’t the strongest to begin with. Even amongst other kirin, Mirvanna had been something of a runt, and with a mollycoddled life, as was the norm for kirin, automated machines had allowed for a lifestyle where shi had never really developed much muscle.

So of course, the kirin alternative was magic. Magic for everything. Problems? Use magic. 

Except Mirvanna was also not this kind of kirin either, every kirin had an element they could manipulate. And hirs? Spirits. Mirvanna was able to see, speak with, guide, and even trap spirits in soul-stones. But that would not bend or remove metal barriers if hir life depended on it. Sometimes it was just better to not have magic, and not have the privilege of technology so you’d actually learn something. Mirvanna contemplated the hatch for a few moments, tugging it, and trying to lever it with a long bar of metal from what might have been the aforementioned lost ladder. Huffing and getting nowhere, shi dropped the bar and sat defeated before hir obstacle.

Thinking back to the rest of the submarine, she remembered that there was the hole in the side of the submarine shi’d seen, probably large enough for hir to fit through, although it would mean holding hir breath.

Shi looked down over the side and sighed; hir fur took forever to dry. Although the surface of the submarine was quite hot, it would make for a decent sunbake afterwards. It wouldn’t hurt to peek as the goal of today had been to establish if the reactor was still untouched, not remove it yet. That would require many days and many tools. Even with hir resistance to radiation, touching the material directly would still mean horrible burns; it needed to be transported in a container of some kind.

Mirvanna stripped off, laying hir clothes and backpack on the hull, grumbling the entire time. The wind was starting to pick up, and finally the water was stirring, small waves lapping the hull. Fortunately the wind couldn’t get too high in a valley such as this and hir fur mitigated some of the windchill. The side of the hull had indents, probably the most comfortable footholds of the last three hours of exploration for the kirin. The water was cold beneath the dock however, and shi squirmed uncomfortably in the shaded water. Biting hir lip, shi descended further, letting the water envelop hir legs and genitals. Hir balls rose slightly, not pulling back into hir body, they were far too large for that, fortunately, but they were lighter than the water, thanks to the hollow structure. Hir breasts were also similarly buoyant and between them, hir balls, and the air still trapped in hir fur, swimming deeper and staying down there was something that would require a lot of effort. Instead shi cheated, using the inbuilt submarine ladder to continue underwater rather swimming. Just before hir head dipped beneath the surface shi took a deep breath, then the rush of water filled hir large ears.

Mirvanna felt around the side of the submarine, pushing the plants aside to inspect the hole in the side. Beneath the surface, shi realised it was much larger, and also couldn’t have originated from the rust and neglect alone. There were scorch marks, evidence of some impact that had sunk the vessel. From the sheer size, it had to have been hit in the dock as it wouldn’t have been seaworthy with a hole this large.

Mirvanna pulled hirself inwards, tearing away more plants. They seemed to keep getting in hir vision no matter how much shi tried to push them away. There was an air pocket in here as well, and as took a moment to stare further inwards… shi saw the hatch on the other side of the conning tower was fully open, letting light through it and into the submarine. Bubbles and muffled curses left hir mouth as shi moved further in. Hir leg snagged in the plants again, but shi was able to get halfway onto the submarine floor, gasping for breath as hir head surfaced. Inspecting hir surroundings, she was that the interior was halfway filled with water.

Shi kicked hir leg free of the plants, but something brushed hir inner thigh immediately after.

Shi turned hir head, trying to get a look, startled by the sudden touch, but saw nothing besides the leafy lake plants that had been bothering hir from the start. Nothing appeared out of the ordinary, and after freezing a few moments, shi put it down to being jumpy and turned back to face up the corridor before hir. Standing up out of the water, she had to stoop in the hallway, not able to stand at hir full height in something made for humans after-all.

Whatever it was touched hir again, this time more insistently, giving the side of Mirvanna’s balls a prod hard enough that they’d have swayed on land. It was like something was feeling hir up, like a creep coming up from behind and cupping hir. And so Mirvanna kicked behind hirself with force, just like shi would’ve done if someone was there, but hir hoof connected with nothing besides the submarine wall, denting it and making a much deeper, underwater clang of metal.
When shi was touched again the prodding poked directly in hir sheath, and this time shi saw it. Something beneath the leaves, bright yellow in contrast to the green appendages, long and almost snake like. An eel shi wondered? Maybe just one of those strange cleaner fish that nibbled the dead scales from others.

The confusion was exactly what it needed to deliver another prod however, eliciting a swat from the kirin to drive it away, the brief contact felt exceptionally slimy. On cue, hir sheath started to swell, and hir tip poked out of the top of hir fluffy sheath, as if the creature had pushed some magic button inside it. Not really wanting a clean by some eel or super worm, Mirvanna edged hirself backwards along the submarine passage, submerged over waist deep in water and with hir horns narrowly missing the roof. The eel followed hir, revealing itself to be much longer than shi originally thought, the tail end of it still not even visible. It slithered side to side through the water like a slow moving snake, pushing again towards hir genitals. Mirvanna squeezed hir legs as it passed through them, but the slimy creature slipped through, this time prodding hir exposed glans and parting it, but Mirvanna was a faster swimmer, especially in a panic. She knocked it out of hirself immediately and crawling backwards up the passage, hir head bumped a pipe before turning and crawling, hir shaft dangling in the water behind hirself.

Unfortunately for the kirin, that was exactly the angle the creature was looking for, the kirin making a less than dignified surprised bleat as this poke stuck into hir urethra proper, the critter making the same snake like swaying motion to wiggle in deeper. As quickly as shi could, Mirvanna turned around to try and wrest it out, seeing hir assailant much more akin to a vine now with its length and thickness, the yellow tube waving about in the water before disappearing back into the murk and strange plant life. The thin length was visible on the underside of hir equine shaft, wiggling back and forth. Shi had some unique anatomy, internal muscles in hir shaft trying to squeeze it out fruitlessly, but it was unnervingly stimulating, and shi was full mast faster than shi could even think about it, still struggling to pull the thing from hir cock. It was incredibly slimy, and shi just couldn’t get a proper grip as she pulled. It also seemed to be anchoring itself in hir shaft, gripping the walls by pressing at the sides to move downwards. 

After a short fight, it wormed its way down to the base of hir cock, hooking around inside Mirvanna toward hir prostate. Worried that yanking it might damage hirself, Mirvanna looked around for something sharp that might cut the vine. Not that shi especially wanted something so deeply lodged in hirself severed either, but options were getting short. Everything in the immediate vicinity was rusted and overgrown, and the passage further on-wards was barred by some mechanical door, much like the hatches. Thinking maybe shi could ‘scissor it’ with the door if shi got it open, Mirvanna tried to rotate the crank, gasping and grabbing hir lower abdomen as the vine’s tip squeezed through hir prostate, then stopped penetrating any deeper. Now shi was just curious, the thing was limp suddenly. Why?

Hir prostate felt tight, like the vine was still being forced into it and coiling up, but the body of it wasn’t moving. The tip of it was expanding, putting a huge pressure on hir inside as it built as the vine tied hir, preventing all hope of removal. Hir laboured gasping was making hir drool into the water in front of hir, hir hips felt like they were getting spread apart by the size of it, hir anus suddenly popped outwards and shi shrieked. Surprisingly, it felt good, but shi clapped hir paws beneath hir fuzzy tail. Shi had a slight distention, exactly like an equines, a small doughnut that was pleasant to fondle. The growth halted there, the body of the vine moving again, not in or outwards, just rippling and expanding inside hir. The vine seemed to be hollow, two internal vines corkscrewing up within it, and changing the external shape of the vine they were in with their bulge, making it thicker.

When they reached the tip they continued, erupting from it and flicking around in hir prostate, making Mirvanna quite literally ‘pull the finger from hir ass’ to twitch and squirm. The vines kept entering, forming coils in front of the mass in hir prostate, then started to squirm down the side tunnels of hir vas deferens, the delicate tubes stretching to accommodate the invasion. The kirin looked between hir legs, this time seeing an internal whip of a vine inside hir testes briefly outlined.

This wasn’t working, none of this was working out like it should have. The door obviously wasn’t moving either, it was time to leave and get back to the surface. As shi moved backwards, out the way shi came from, shi followed the now corkscrew shaped tentacle, seeing a great glowing bulge in the tendril the size of one of hir whole nuts, steadily travelling its way along it. Knowing where it was headed, the kirin went wide eyed, scrambling to grab ahead of it. While still slimy, it was much easier to grip now that the thing was thicker and had a bit of a grab-able shape with its the twisted internals.

It was still a two hand job, the huge bulge stopped by hir closed fists, making swimming much more difficult now that hir paws were occupied with holding the tendril. Shi saw another bulge, further back along the tentacle, equal in size and coming towards hir. It joined the first, forming a larger, more elongated one that pushed far more insistently at Mirvanna’s paws. Eventually, splitting her attention between awkwardly swimming and attempting to block the bulges in the tendril, Mirvanna lost hir grip, the bulge squeezing hir paws apart and travelling back along the loop of tendril that now trailed hir. Futility, Mirvanna ducked hir head below the water and swam out the opening of the submarine as the bulge followed hir. The plants had shifted as shi passed them, this time seeing large yellowy pumpkin like fruits at their base that glowed ever so slightly the same yellowy orange as the tentacle. 

Mirvanna got as far as the ladder on the side of the hull when shi felt the weight of bulge dragging through the water, just inches from hir cock, the weight dangling off the tip as shi rose from the water. As the bulge connected, shi felt enormous pressure at the head of hir now flared cock, spreading it like a trumpet. The bulge was definitely liquid, but the vine was forcing it in, the tendrils becoming thick through Mirvanna’s shaft as the high pressure flow was forced through it. Shortly after Mirvanna felt the inside of hir balls getting hosed. Shi trembled in the water, hir balls doubling in size before the bulge was completely unloaded. It wasn’t the last one either, the kirin struggling to take a second and third enormous lump of fluid quickly after the first. Hir legs parted wider to accommodate the increased the size of hir balls.

Somehow, in the most awkward climb in the history of hir species, shi made it up the side of the submarine. When shi collapsed face first on the deck, each one of hir balls was the size of one of those sea floor pumpkins and then some. “Please, no more” shi groaned, only for hir prayer to be answered with a fresh filling, making hir wince and squeeze hir legs over hir expanding orbs.

Maybe some deity had taken pity and listened to hir, or maybe the vine simply didn’t like being out of water? Either way, after that, the vine once more fell limp and the filling ceased. Shi lay on hir face for a time, struggling to grip what had even happened. Hir balls felt so tight! It wasn’t until the sun started to go down that Mirvanna finally tried to collect hirself. As shi sat backwards hir balls were squeezed again, and shi quickly thought against it, instead trying to crawl up the side of the conning tower. As shi did so, the vine popped out of hir cock. Shi blinked in surprise, looking at the now ‘deceased’ noodle on the rusted deck. The bulge in hir prostate still remained though, and Mirvanna felt a flushed heat rising in hir cheeks and spreading through hir whole body.

Shi gripped hir shaft, beating it up and down on instinct. Hir shaft was slightly agape, drooling a clearing lake scented slime. Shi’d never felt so pent, nor aroused in hir existence, the feeling overcoming hir like a drug. Hir orgasm rose, stoppered by the thing in hir prostate, “No, no, no!” Shi stammered heatedly, hammering faster and bucking into the air uncontrollably. Suddenly the mass in hir prostate… opened? Letting hir orgasm through like a valve, rapid bulges ran up the side of Mirvanna’s cock as yellowy-orange jelly erupted from hir shaft like an opened faucet. It splattered out into the lake before hir, filling hir ears with splashing. Some of it landing on the hull as well, and in the mix shi saw swimming yellow forms… hir sperm had enlarged enormously… and were completely tainted, glowing softly...

The mass in Mirvanna’s prostate started to close before shi was finished however, and shi slid onto all fours wracked in pleasure and strange sensations. Hir shaft twitched, trying to fire its stoppered load, and Mirvanna’s orbs swelled every time it did. Hir balls were still growing, swelling even larger than when the plant was finished filling hir. Within shi felt hir new hyper sized seed swimming.

From behind, something prodded hir balls...