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The closest thing Kanata would compare it to would be an octopus.
When he first rescued the poor thing, its skin was shimmery—albeit dulling because it wasn’t doing so hot on the sand. By the time he got it in a container of water big enough for him, it was looking a bit more lively, but it slowly grew greyer and greyer. And despite Kanata’s best attempts, Mr. Octopus wouldn’t accept any of his food offerings, growing greyer still.
That was only yesterday. It’s another day at Aoumi and Kanata still hasn’t gotten the creature to eat. He sighs, watching it. As much as he would love to nurse him back to health himself, it might be best to hand the creature over to a specialized facility or something—somewhere that might be better equipped to take care of him.
He stares at Mr. Octopus in the current tank he’s in: big, wide, nearly the whole room dedicated to it.
“Mr. Octopus, if you don't get ‘better’ soon…”
Still, it remains listless. An ash colored blob gathered in on itself at the bottom of the tank.
Kanata sighs once more, but then a couple of knocks break him out of his thoughts. “Oh?”
“Kanata-niisan~” The door swings open to reveal two people. “Good day. I hope we’re not interrupting anything important?”
“Nacchan~! Shuuu~!” Kanata smiles back, rushing to greet them near the door. “What ‘brings’ you to Aoumi?”
“Shu-niisan and I were having brunch Earlier. We were in the Area, so we decided to stop by as a Surprise.”
“One of your employees said we might find you back here. Speaking of which, what is that?”
Kanata raises an eyebrow and turns around to where Shu points. “Oh, that’s just Mr. Octopus.” He turns back to face him, feeling his smile weaken. “I was actually ‘thinking’ about what I should do with him…”
Moving closer to the tank by a few steps, Natsume asks, “Is there something wrong with It?”
“I think he might be ‘stressed’ from whatever happened before I found him. I wanted to ‘nurse’ him back to health before releasing him, but he doesn’t want to eat anything I give him. He’s also been ‘sulking’ like that for the past day or so…”
“Strange… What have you been trying to feed the thing?” Shu walks towards Natsume with Kanata following a step behind.
“I’ve tried ‘feeding’ some fish. Anchovies, sardines… tuna, mackerel, herring.”
Another series of knocks interrupt Kanata’s thoughts.
“Shinkai-san! And- ah.” The employee makes a quick bow towards Kanata’s guests, before clutching the door shyly. “So, um, there’s a bit of a situation with a newbie and a guest at the gift shop.”
“Hm? I’ll be right ‘over.’ ” Following the employee, Kanata flashes an apologetic expression towards Natsume and Shu, promising he’ll return as soon as he can.
Shu simply smiles, wishing that the problem gets resolved without much trouble, before Kanata and his employee completely leave them.
“Seems like Kanata-niisan is in a Pinch.” Natsume looks back at the ash blob in the tank. “In more than one Spot.”
“It appears so.” Shu crosses his arms, trying to discern where each of the creature’s body segments begin. Aside from its bulbous head though, he can’t make them out. “I wonder… It doesn’t really look like an octopus.”
“Hm.” Natsume walks right up to the glass. Tap.
A couple of bubbles escape from the blobby nest of the octopus’s body.
“What are you doing?”
Tap, tap. “Seeing if it’s Responsive.”
“I’m pretty sure Kanata has multiple warnings not to tap on the tanks.”
“But this tank is so Large. It shouldn’t be as bad as with the smaller Ones.” Tap. “And this guy seems to be a special Case.”
When Shu is about to voice his opinion again, Mr. Octopus stirs, and it travels toward the glass as if it were a pushed boulder.
“Oh.” Natsume smiles, lowering his hand.
“Well.” Shu stares at the thing, pleasantly surprised. “At least it doesn’t seem too angry at you—though it’s probably too hungry to be.”
Eventually the creature reaches the edge of the tank, mustering enough energy to sprout a limb up the glass. It’s thin, tapered at the end, and wriggling like a worm.
“Mr. Octopus,” Natsume says. “Kanata-niisan is really worried about You. Won’t you give the food a Try?”
The thing continues wriggling its way up the glass, coming up over the edge, and then droops down like Wataru’s hair when he’s hugging the ceiling. The tapered end of it lifts in the air, sluggishly swaying back and forth as if it were looking between the two of them.
Shu raises an eyebrow. “Eek!?” He tenses as the octopus’s limb lifts a piece of his bangs up. “Excuse you!”
“Pfft. He must think you’re a giant Shrimp.” Natsume covers his mouth. “Come to think of It, maybe that’s why you get along with that Knight.”
Before Shu can scold it (or Natsume), he’s let go, and left to watch it move on to do the same to Natsume’s hair.
“Oi. Do I look like a cooked lobster to You?” Natsume deadpans.
Shu smirks as he scoffs. “Not nice, is it?”
Splash. The surface tension of the water breaks when more limbs sprout from the thing—longer, thicker, looming. They surge down the tank’s glass, wrapping around Shu’s wrist, Natsume’s waist, tugging.
“What the- Hey!” Shu yanks his arm. “G-Get your hands- your slimy appendages off of me!” The limb tightens, and more surround to wrap around his body.
Natsume grunts, squeezing his eyes. Squeeeak! Despite his effort, the octopus easily changes tactics, hoisting Natsume up by the arms so his shoes are instead lifted off the ground. “Hold On!” He kicks the air. “Stop, you Stupid…! Nngh-”
Shu feels the same thing that’s happening before his eyes. A thin tentacle slips into Natsume’s shirt from the collar, another from the bottom of the hem, bulging the fabric and making it more sheer. One of them bypasses the waistband of the boy’s pants, creating another outline at his crotch.
Clink, clink. Shu pulls his head down to gawk at the thinner tentacles undoing his belt. Just what is this thing doing!? He thrashes, jerking his hips away, trying to knee the offending limbs, but it’s useless. Just like Natsume, he’s soon hoisted into the air as two pairs of tentacles pinch the bottom of his pants in place, leaving the fabric to pool at the ground along with both of his shoes and one sock.
“Someone!” Another pair of pants softly thud. Natsume shivers, interrupting himself with a disgusted groan before calling out again. “Help!”
“No! Quiet down!!” Shu’s other sock is peeled off.
Natsume stares.
“Do you want someone to see us like this?!”
The tentacles squeeze tighter around them as they try harder to break free from the octopus’s grasp.
“Better than being Eaten!” Natsume snaps. “Someone! Hel- Mmph!?”
“Natsumngh!?!” Shu’s eyes shoot wide open, barely registering the image of a tentacle shoving its way into the boy’s mouth. If not for the unmistakable salty taste of the ocean, he doesn’t think he’d be able to process the tentacle in his own mouth either.
Something coats his tongue in viscous blobs and he instinctively swallows. Oh, God. His heartbeat’s thrumming. His face- His body- It’s starting to burn. He’s being cooked alive from within and he’s going to be eaten whole by this sea creature.
The octopus pops open the buttons of his shirt from the inside. “Mmph!” It’s peeled off of his body like his pants, and no amount of thrashing deters the octopus from rubbing its wet self all over him. Thud. Ribbed nubs gently kiss his arms once more, after allowing Shu a taste of freedom with his shirt. “Mm- Mmph!”
“Agh!” Natsume cries, leaving thick secretions to leak from his mouth. “S-Sto…” His voice shifts throughout the air, trailing into another moan once another tentacle finishes wrapping itself around the boy’s knee. He’s hoisted further upwards, more within Shu’s line of sight, and parted by the leg to reveal his erection.
Shu swallows again, staring as smaller tentacles return between Natsume’s thighs to excrete more fluids. Slick, slick… He glares downwards and tenses his legs, squeezing them together when the octopus presses itself against his thighs, but it manages to worm its smaller appendages between the small gap. “Nn!” They wrap around him and tug in opposite directions.
“D-Don’t! Ahh~!” Natsume jostles in his suspension with the force of a thick tentacle’s thrust. It glides in a few inches, stretching him out, before pulling back and repeating the motion. Slick, slick, slick!
It’s repugnant. Shu feels himself throb, looking on in shock as his adorable boy continues to moan uncontrollably. The force between his legs grows stronger with every attempt to yank him apart, with every thrust across from him. It burns. His muscles tremble, fighting and fighting, making his shame bounce against his stomach. He becomes cross-eyed when he notices the tentacle in his mouth starts to bulge towards him, spewing more thick, salty globs. Ugh!
“Ah, ah, haaah!”
Shu blinks away a tear, wearily looking back up to his boy. “Nii… -san,” every syllable bounces as he cries, half-lidded. Another ember adds to the growing heat within Shu, and another tapered end weasels against his thighs, thicker than its brethren. Badump, badump… His shame grows heavier.
The tentacle continues violating Natsume between his legs, letting others snake up to his chest to pinch a hold of his nipples. “Nn, no…” Shu shivers, groaning at the same sensation on his side. And just as he witnesses the tentacle drawing back into another deeper thrust, squelching in excess slimy fluid, his own thicker tentacle forces itself through his thighs. Slick, slick!
“Agh!” Shu grunts, gasping for air once he realizes he can. The tingling sensation shoots straight to his nipples and erection, it almost hurts how good it feels. With each stubborn thrust, the underside of his testes are coated in slime, making the rest of his length throb in envy.
“I can’t- I’ll-” Natsume moans and one of his legs are lifted higher. His entrance twitches, taking it and taking it, until it spasms with the rest of him.
“A-Ah,” Shu can’t help but exhale, enchanted at the beautiful curve of his spine despite their horrid situation. His legs give, and the tentacles take. He moans when he finally tastes a bit of what Natsume has been feeling between his cheeks.
Pop, pop! Snapping back to Natsume’s chest, the boy’s nipples puff out while the tentacles angle his shaft towards his body, with others chasing after strayed spurts. Once the sea creature has gotten a taste, it’s like a shockwave that ripples throughout every slippery limb Shu can see, and he feels it vibrate against his prostate in a shuddered thrust. “Ah!”
They give him no reprieve. He feels himself leak globs, with the thing continuing to return and leave him as it keeps churning his insides. He meets the same fate as Natsume in no time, arching his back and tensing within the octopus’s hold—letting him be sucked by the phallic, ribbed limb as it coils around him.
He sags, and when he hazily tries to look over to Natsume again, mouthing an apology, he feels the rippling sensation once again. The last of the effect twitches via the idling tentacle at the boy’s chest, squeezing his nipple out of reaction rather than intention.
The next thing he knows their chests are slammed together like a child forcing dolls to make out. “Ugh!” They grunt, gasping over each other’s respective shoulders. Slick, slick… More tentacles slither between them, pressing both of their tired, weeping selves against one another into another coil.
Whatever spice from its earlier secretions kicks back in again, ramping with its movements. Yet it spews more, nonetheless, layering another blanket of heat that borders on mind-numbing. It burns, squelching lewdly. Shu can’t. He can’t anymore either.
“Shu-niisan, I’m coming… I’m coming!”
“Nngh, m-me too…!”
The tentacles squeeze both of them, wringing out every last drop of their climax, and then it shivers violently, vibrating the both of them yet again. Fear registers in Shu’s mind, but the heat melts it away in a flash. All he can do is pant in tandem with Natsume as the octopus applies another layer to them in one more helping.
Despite lacking an exoskeleton, his spongy bits survive. But that’s almost all Shu can register in his fuzziness. Squinting his eyes open, a tentacle tenderly lifts his arm, sliding the sleeve of his shirt back on, with the rest of his clothing following in a similar delicate manner. Limb by limb, he’s neatly wrapped up like an empty bento, ready to be taken home.
A door creaks open after a long silence.
“Sorry for ‘taking’ so long… There were more thi-” Kanata spots Natsume and Shu on the ground. “Hm? Why are you two on the floor?”
The two hardly stir when Kanata steps closer to them.
“…Get me away from that- that thing.” Shu raises a weak finger, dropping it seconds after.
When Kanata follows the direction of his finger, to the only thing he could be referring to, he notices it. Mr. Ocotpus’s complexion is so shiny—and the faint reddish-pinkish hue coloring his head is almost reminiscent of a satisfied blush.
“Kanata-niisan…” Natsume uses all his strength to lift his head from the ground. “Now that he’s Healthy… I really think you should release Him.” He then face-plants back on the floor.
As a few heart-shaped bubbles gurgle out from Mr. Octopus in the background, Kanata hums in question, tilting his head.