I’ve Been Reincarnated as a Tentacle Slime~ I Want to Live a Comfortable, Secure Life and Do Whatever I Want~ - Chapter 23

After returning from the 8th floor, I spent some time playing with Rio. However, it was now time to give her the nutrition supplement.

“Rio, it’s almost time for today’s meal.”

“Y-yes, I’m ready!”

Rio blushes and takes off her underwear.

I deliberately force clothed play on Rio. Of course, it’s my preference.

“Rio, spread open your assh0le yourself.”

“Yes, Master.”

Rio lay down on the slime bed, spreading her legs wide and pushing her hips back. She got in the doggystyle position. Her swollen belly distorted under pressure, but since it was a slime inside her womb, she didn’t seem to feel any pain.

Four of Rio’s fingers went into her assh0le, spreading it wide enough for a boiled egg to fit comfortably. This level of stretching had become possible due to her daily rectal nutrition intake.

“Rio, I’m going to put it in your butt.”

I shaped the tip like a p3nis, and the long shaft was covered with bumpy nodules, vibrating and rotating. Since the tentacle was dripping with slime, there likely wouldn’t be any pain from dryness. It was about one size thicker than an adult man’s p3nis.

“Nnngh… Master is coming inside… haa…”

I insert the tentacle into her anus that had been spread open with her fingers. The mucus acts as a lubricant, allowing it to slide in smoothly. Inside, the colon is beginning to develop textured bumps and cilia, and sphincter’s form along its path, preventing anything from reversing direction. These sphincter’s are firm, like a thin cervix. When the p3nis pushes through, spreading them wide, the tiny nodules and cilia cling to my shaft, scraping along it and stimulating my p3nis. Between the colon’s embrace and the gripping sphincter, my p3nis (the tentacle) can no longer hold back and ejaculates semen.

I no longer have any intention of holding back my ejaculation. It feels good, and I’m not going soft, so I’ve simply resigned myself to letting it out as much as I want.

The ejaculated semen sticks firmly to the inner walls of the colon, which contracts in delight. Forcing its way through the contracting colon, it presses forward even further.

“Ahhh… my butt is being splattered with Master’s semen… haaan… and it’s feeling so good… But it’s too early to enjoy it—your p3nis is spinning round and round, nghii… this sloppy butt and asspussy… hahii… must be punished…”

As I dig deeper into the colon, the next colon sphincter awaits my p3nis once again. Yes, the sphincter was an evolved organ designed to make ejaculation spread evenly throughout the colon. I grope the next sphincter with my p3nis and force it open. The rough sensation makes me ejaculate again.

“Ugh… it was made just for me. This ejaculation sphincter feels too good.”

“I’m so happy. Nnngh… I want Master to feel good, so… hiii… my asspussy worked hard to make this. So… please use it a lot, ejaculate as much as you want, haaa… I want that.”

While ejaculating so much that it stains the colon white, I finally enter the small intestine. The small intestine is made up of bumps, slippery textures, and nodules similar to the inside of a v4g1na, with hardly any gaps, I can only push through with my p3nis. Moreover, the cilia move in the opposite direction to my p3nis, trying to push things toward the colon, making the stimulation that my glans receives extraordinary.

Furthermore, as the colon tightens around the shaft, and with every time Rio climaxes, the entire intestine tightens, causing my p3nis to continue ejaculating, as if it was a broken faucet.

“Haa… haa… I’m so happy. Master—! Haa, haa, I’m so glad you’re feeling good… It makes me happy too—! Hahii…”

“What a lewd, asspussy. How many times do you have to plead for my ejaculation to be satisfied?”

I ignore the fact I developed it and slap her ass with my tentacles.

“Aahhh!! I’m sorry! Getting my butt slapped is making me cu―――m!!”

Her ass jerks and jumps up. Her pvssy begs, with her labia bulging out enviously, but I won’t touch it at all until she gives birth. After being ignored for a bit, it droops dejectedly, as if hanging its head, and retreats back into her pvssy. At that moment, I give it one last thrust and push about half of the my p3nis into her v4g1na, it reacts with pure joy, wriggling and tightly embracing in service. The pleasure causes me to ejaculate into her asspussy. When I pull my p3nis out from her pvssy, it reacts as if it’s disappointed, but her well-trained pvssy closes tightly and only allows a bit of love juice to drip out.

Due to Rio’s repeated asspussy orgasms, my ejaculated semen reaches the very end of her small intestine. The intestines are already filled with the nutrients, development fluid, and aphrodisiac contained in the semen, but there’s no way it will end here.

I enlarge my p3nis and fill the intestines completely with my p3nis without leaving any gaps.

“Ahhh… my entire stomach has become Master’s, so fuu… ahh, I’m cumming again, fuu…♡♡♡”

I grab her butt that keeps twitching and jumping around.

“Well then, good night? Rio always faints and foams at the mouth when your asspussy gets penetrated.”

“Good night… Rio can’t handle it when I get filled and pounded so hard…”

“There’s no need to worry. I’m happy that you feel so good you pass out. Even if you faint, you still squeeze me tightly, so there’s no problem.”

“Thank you. I’m happy as long as you can enjoy it until the end, Master. I was worried because I didn’t know.”

Firmly securing her butt with my tentacles, I create numerous anal beads around her anus that are slightly larger than a boiled egg.

“Then, there’s no problem at all. Just make sure to faint properly.”

Then I start thrusting them in and out.

“Ahhhhh♡♡♡♡ My asspussy is hot♡♡♡♡♡ Squelch♡ Squelch♡ Squelch♡ it’s getting all sloppy――ahh! My asspussy can’t escape♡♡♡ The big bumps are grinding――ahh♡♡♡”

Rio receives my thrusts with her whole body, her hips try to twitch, but since she’s held down by the tentacles, the vibrations are reflected back inside.

I also scatter the slippery and grainy texture of the small intestine with my semen as I pull out. Once I pass through the small intestine, the large intestine sphincter slides up my glans, causing me to ejaculate as I return to the anus. Then, once again, I invade the large intestine and small intestine. At the moment of invasion, the large anal beads are swallowed into Rio with a gurgling sound.

If I had a waist, it would have completely collapsed having gone weak in the knees. I can’t help but think it’s a good thing I’m a slime without a waist.

“Ah♡ Ah♡ Ah♡ It feels good♡♡♡ Your p3nis♡♡ It feels so good♡♡♡ Shaking and shaking♡♡ Gulping and squishing♡♡♡ It’s so warm♡♡♡”

Tears of joy streamed down Rio’s face as her back arched unnaturally, like a shrimp. She was squirting out cum, mixed with what seemed to be urine, giving the liquid a slight yellow tint. I let the holy water fall on me and tasted the saltiness as it soaked in.

If anyone else saw Rio right now, they’d likely grab weapons and try to help her.

Because she was pinned down by a slime, her arms, legs, and waist fixed in place, and her ass thrust upward. Into that raised ass, a thick tentacle about the size of a child’s arm was deeply inserted — densely covered in bumps about the size of marbles. That tentacle was penetrating her ass, pistoning in and out with loud squelching sounds. Moreover, the tentacle is about 6 to 7 meters long when fully extended, and that entire mass was invading the body of a girl who had just reached her first period.

Furthermore, she is probably already unconscious, with her eyes rolled up, letting out a deep, animal-like cry, as milky liquid leaked out of her ass with each thrust, at the complete mercy of the tentacle slime. No matter how you look at it, she just looks like she’s being raped by the slime.

“Ohhh♡ Ohhh♡ P3nis♡♡♡ P3nis♡♡ Oh♡ Ahh♡♡ Ahh-♡ Ahh-♡♡♡”

As I ejaculate, I wrap another tentacle around her tail and rub it up and down. The tail is weak as expected, as the inside of her intestines tightens further, increasing the amount of cum I ejaculated.

–

Has it been about an hour since we started having s3x? Rio had turned into nothing more than a living onahole meant to make my p3nis feel good. She had long since lost consciousness, foaming at the mouth, her whole body convulsing violently. My semen was probably filled all the way to her stomach.

It’s not like I’m bullying her or anything. Nutrient absorption still takes about an hour. Compared to the two hours it took at first, it’s been cut in half. Even so, the development of her erogenous zones progressed faster, so this is the result.

I thrust one final time, releasing my semen into her intestines with a spurt-spurt sound. Even while pulling out, the pleasure makes me climax again, and I continue ejaculating in spurts. As the long tentacle leaves her ass, a wet squelching sound echoes, and the semen spills from her gaping assh0le.

Even after the tentacle was removed, Rio continued to tremble from a semen orgasm. I wrap my body around Rio’s naked body so she doesn’t catch a cold and fall asleep.

The parameters will only be listed when there is a change in ability, from now on.

This time’s results:

・The large intestine became a tight s3x organ, while the small intestine developed into a firm and soft s3x organ.

Chapter length 3766 characters.