I Became a Tentacle Monster

Wet mucus and the tang of blood.

That was the first thing I felt.

The disgust of being soaked head to toe in sticky slime, the pressure of being wedged tight inside a cramped space.

Instinctively, I tried to stretch, but the familiar motions of rolling my shoulders or extending my legs simply wouldn’t come.

Instead, against my will, I felt something writhing out into the air.

Ugh... why is it so damn tight?

I’d fallen asleep wrapped up too tightly in my blanket, maybe? With that thought, I habitually reached up to wipe my face.

But instead of a hand rising, three slender tendrils lashed through the darkness I took for my field of vision.

In that instant, a lightning bolt of dread cracked through my skull.

Wh-what do you mean I can’t feel my arms and legs?!

Horrified, I tried to sit up.

What came back wasn’t the recoil of muscles straightening my spine, but the soft, gooey ripple of a creature with no bones at all twisting its body.

I strained to open my eyes, but no visual information came in.

Instead, tiny vibrations, dampness, and changes in the air around me poured into my brain from every part of my body I had thought was skin, as if they were substitutes for sight.

I tried to scream.

But where my throat should have been, only a wet, gurgling squelch leaked out instead of vocal cords.

No sight. No hearing. No arms. No legs. What... what the hell am I now?

Terrified, I thrashed like a madman. Every time I did, the sensation of a smooth mass of flesh brushing against a soft wall sent chills skittering over me.

Round. Long. Soft.

A tentacle monster. I had become a tentacle monster.

This is insane. It has to be a dream.

I’d always liked tentacle smut to some degree, sure, but that didn’t mean I wanted to turn into a real tentacle monster.

I focused my will with all my might, straining as if I could force myself back into human hands—or at the very least, regain the sensation of my own face.

But all I got back was the nauseating texture of slime sliding over my own body.

All the countless sensations I’d taken for granted as a human—the crispness of morning air, the roughness of clothes, even the cold touch of a floor beneath bare feet—were now nothing more than luxuries stored away in memory.

Please, somebody say something! Why is there nobody here?!

With a soundless wail, I groped at my own body. Three tentacles, disturbingly supple and curved, coiled around one another.

With every ripple that spread through me, my human sense of self fractured a little more.

The harder I tried to deny reality, the more the foreign thing inside me felt as though it were chewing through my brain.

Haaah, haaah...

Whether I was breathing or just exchanging gases, I couldn’t tell, but a rough wave rolled through my body. The reality I could no longer deny came crashing down on me.

I was no longer human. In this dark, damp cave, I had become some wormlike monster born for reasons I didn’t understand.

And then denial ended, and monster instinct arrived.

My stomach let out a hollow growl.

Hunger. Gnawing, ravenous hunger.

As if a giant black hole had taken up residence in my gut and was trying to swallow every scrap of energy in existence, a pain like my belly was about to split open surged through me.

I’m hungry... I want to eat...

Foods from my memories flashed through my head, but they meant nothing now. What I needed wasn’t the food on a table.

I needed something alive. Something brimming with hot vitality. Something I could pierce through and suck the essence out of from within its body.

It felt as if my libido and my appetite had fused into one.

It wasn’t just the urge to eat something anymore; it was a savage craving to dominate my prey, break it, and make it mine.

I groped along the cave wall like a starving beast. Something beyond this wall could soothe my hunger. Instinctively, I began gathering mana at the tips of my tentacles.

Prey! Prey! Prey!

The three tendrils twisted and braided together until they became a single, hardened spear. I drove it straight into the wall.

Crack!

As I tore through the membrane-like surface, blinding light and humid air burst through the gap.

I broke through!

I couldn’t see it, but the information flooding in through my skin told me enough. A man-made space, and among them, the most secret and warmly lingering place of all.

I snaked my body through the opening, my tentacles writhing like serpents.

Wherever they touched, my senses expanded.

The cool slickness of tile, the fragrant scent of shampoo drifting through the air, and the steady sound of running water. Every one of those details stabbed bright little jolts through my brain.

I let a tentacle slip down past the bathroom drain, through the stream of water pouring down.

And at last, the instant my head poked out beyond the drain, my senses caught sight of something truly delicious.

Slender shoulders covered in white foam. A woman lounging lazily with her eyes closed inside a steam-filled bath.

Her hair, damp enough to cling to her shoulders, was black as pitch, and beneath it her shoulder line was smooth and white as porcelain.

Her skin, warmed by the steam, carried the faint blush of a ripe peach, and the white foam covering her chest teasingly obscured her breasts, making me all the more desperate.

Found her.

Quietly—truly, without so much as a single sticky sound—I hid my tentacles beneath the water.

Her thighs were exposed and defenseless, and the intimate place flushed red between them was my target.

The tentacle cut through the water as it crept between her legs. The bathroom was full of hot steam, and the foam helped mask me, so she still hadn’t noticed.

She had been keeping her eyes closed from the moment I entered the bathroom anyway, so she probably hadn’t seen me.

With the organ of my skin gathering information, her sex lay open before me beneath the water. A slit held tight like a closed shell, with her pubic hair fluttering above it.

Saliva... no, slime dripped from me without restraint at the lewd sight.

Let’s eat.

Unable to hold back any longer, I tapped her pussy with one tentacle coated in sticky mucus.

"...Ngh?"

Her eyes flew open with a short moan. But it was already too late.

As if it had been waiting for this moment, the tentacle forced its way between her wet folds and plunged straight deep inside.

"A-ah, aahh!?"

The sensation of her hymen tearing with a wet crack sent ecstatic, sweet pleasure surging back through the tentacle.

As my tentacle crushed her deepest recesses and tried to suck the Yin Energy from her womb, I felt a buoyant sensation, followed by hands trying to pull me out.

"A-An Anomaly!? Get this thing out!"

She grabbed my head with both hands, trying to yank the tentacle free. But with my other two tentacles, I clamped down hard on her firm thighs and drove the one already buried inside her even deeper.

At the same time, the Yin Energy gathered ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠from her womb mixed into my slime, turning it into an aphrodisiac.

"Hngh...!?"

Her motions to pull me out stopped dead.

Her clit swelled hard and taut, and thick juices began pouring out of her uncontrollably.

"W-wait! This is dangerous—ah!"

Just as she started to shake herself free from the wave of pleasure, I ground the aphrodisiac-soaked tentacle brutally around inside her.

"Ooooh... ♥ Hahh, ngh!"

She froze in an awkward half-standing posture. The pleasure stabbing through her brain must have shocked her mind so hard it short-circuited for a moment.

I didn’t miss that opening, stabbing again and again to brutalize her cervix.

Gurgle, gurgle, gurgle, gurgle!

Lewd wet sounds echoed through the bathroom. Her juices pattered down, melting away the bubbles in the tub. She was being swept away helplessly by the tsunami of pleasure, making the beastlike cry of a creature at the edge of ruin.

Roughly six climaxes. That had to be accurate, given the sheer amount of Yin Energy I’d absorbed all at once.

In any case, I’d consumed such an absurd volume of it that my belly had puffed up round and full. And perhaps because my hunger had eased, the beastly instincts receded and my intelligence floated back to the surface.

Hmm...

A woman I didn’t even know lay sprawled on the bathroom floor like a frog.

Normally, I should’ve felt something like guilt, but all I felt looking at the scene was a strange sense of satisfaction.

It was proof that my humanity had been riddled with holes, yet I didn’t feel the slightest urge to panic over it. I only had the vague sense that this was one of those situations in which I should probably be taking things more seriously.

Well, whatever. If it’s come to this, I might as ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠well live ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠my best life.

Calmly, I thought it over while keeping a tentacle plunged into her pussy.

A tentacle monster, huh. So what exactly can I do?

My body shape was roughly that of a three-armed squid. The abilities I had confirmed so far were moving into the bathroom and secreting aphrodisiac fluid. Two abilities, total.

Isn’t there some sort of easy-to-read summary? Like a status window?

So the species really is Tentacle Monster. And the level... is that because of the Yin Energy from that woman?

The moment I focused my mind to analyze the status window one line at a time, a sharp snap rang out.

"You vile Anomaly...! Do you think you’ll get away with violating ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠me!?"

The woman screamed venomously, clutching a toothbrush she’d snapped clean in half. The jagged, splintered end of it was aimed at me with murderous intent.

I was a tentacle monster small enough to fit in my palm. The instant that toothbrush got embedded in me, I’d be at death’s door. Panic surged through me, and I frantically pressed the trait points in the status window.

Hurry... I need a survival skill!

My gaze locked onto a bizarre skill listed in the shop.

This is it!

I immediately hit the purchase button. At the same moment, she lunged at me, swinging the toothbrush down.

I used the skill through the tentacle connected to her pussy.