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Inyouchuu Gaiden Chapter 3 Part 2

「S-Stop it! You hear me!? Stop! It!」

Her voice would quickly become rough and hoarse from repeatedly screaming at her little sister. She also squeezed her arms to try to bounce off her sister’s body.

However, even though she might not look the part, Takeru was strong. So naturally, Mikoto’s attempt at resisting her ended in vain. She had her left leg entwined with her right leg in her depths of sympathy in order not to miss her body trying to move away. At the same time, she thrusted her palms into Mikoto’s skirt and grabbed her butt tightly. Her fingers dug into her panties. The weave was close to the white fabric.

「Ah……!! T-That place……!! Fumuh!!」

Having her butt grabbed like that deeply upset Mikoto. Takeru did not let that chance slip by and allowed her tongue to enter Mikoto’s oral cavity.

Chiyu, Chiyuku, Chiyuru. Chiyuniyuniyu……!!

「Nfuuh!! Fuuh! Kuuh!! Nnhh!!」

Takeru’s tongue entwined with Mikoto’s tongue. At the same time, her sigh and saliva flowed into her mouth. Bad breath mixed in with a sweet smell. Saliva soaked into Mikoto’s oral mucosa and dissolved there.

(No! That’s wrong! We shouldn’t be doing this, Takeru……!!)

Mikoto did not want to see her sister in pain. Therefore, she had helped her sister to calm down a few times before, when her seizures would be exceptionally strong. She even actively let her finger crawl all over her pussy at one point. But this time it was different. She did not think that her lewd seizure attack would be the only reason for Takeru’s attitude and behavior to change so much. She has never been so forceful with her approach before. That was literally the first time.

That’s why Mikoto tried to escape, but when her tongue was sucked and her saliva was poured out of her mouth, her whole body lost its strength all at once. Her hand shook powerlessly as she tried to push away Takeru one last time.

「Nfuh, fufufu……」

She must have noticed that Mikoto’s resistance was waning, because Takeru laughed as she kissed her sister even more passionately than before.

The wet and loud sound resounded from her lips, which gradually connected with Mikoto’s more and more, and saliva leaked from the corner of her mouth in huge quantities. At some point, Mikoto began to gulp her throat and drink up the saliva that flowed inside of her mouth so that she would not end up suffocating.

(I shouldn’t be doing this! Not something like this!)

She then remembered just how good it felt to kiss Takeru. Her flesh began to heat up slightly at the touch of her flesh, and she was becoming more and more aware of the pleasure she was feeling. Her eyes, which were wide open in surprise, narrowed as they moistened more and more.

「Nnh, nnhh…… Nnhh!! Fuguhh!! Nguuh!!」

It was then that the sudden change occurred.

「Ngehh! Ooohh!! OOOHHH!!! Ogeeh! Geh!! Heee……!!」

Just as Takeru suddenly began to suffer while she was kissing Mikoto, something like a gigantic lump began to enter Mikoto’s mouth.

「Bufuegh! Nngh!? Nbuugh!! Gueeh!!」

Something slightly smaller than her arm pushed her lips apart. From the fact that the lump had a unique odor and gave off a thick youma atmosphere, Mikoto immediately understood that it was a youma that had invaded the inside of her mouth just now.

(This youma…… Was it hiding inside of Takeru’s body all this time!?)

It must have remained hidden at the back of her younger sister’s throat, lying in wait for an opportunity to assault another person. In other words, Takeru’s body was controlled from the inside……

In an instant, Mikoto came up with that idea, and a fierce hatred against youmas flared up in her heart. The change in Takeru was probably related to this youma. She did not care what happened to her, but she couldn’t bear the thought that something like that was playing with her family and hurt Takeru.

(I won’t forgive you. I will never forgive you, you bastard!!)

Although that much was perfectly clear to Mikoto, there was nothing that she could do while she was in a situation where she couldn’t move her body freely. She couldn’t even get rid of the youma that was flying through her mouth right about now.

「Nuooohh!! Ngeaah! Ogooh! Ogoohueah!? Gehooh!?」

The fleshy head of the tapeworm-like youma was thrusted deep into Mikoto’s throat. Her airway was blocked and she was feeling like she was about to suffocate. She ended up coughing repeatedly, trying to expel the intruder.

「Fubueh!? Gehooghe!?」

It seemed that Takeru, who spat out that youma, was also suffering, coughing like her sister. Due to this, the gastric juice that was vomited by her was caught in the tentacles and flowed into Mukoto’s mouth, spreading a sweet and sour taste inside of it.

The youma who connected the two sisters did not care about the suffering of them at all. It slipped out of Takeru’s throat and slipped into Mikoto’s throat as if it was the most natural thing in the world for it to do.

「Nguhh!! Can’t breathe!! M-My breath! I… I can’t catch my breath!」

Was that youma almost one meter long? Just when she thought that, it stuck its head down her throat. It mercilessly leapt into Mikoto’s esophagus next. There was no way she could breathe satisfactorily in such a situation, and Mikoto was attacked by a wave of intense pain. Tears welled up in her eyes in no time.

「Fubuh! Ubueh! Fubugh!?fugubu……!?」

At the current moment the only thing that Mikoto could do was to suffer. There was nothing she could possibly do other than let out a muffled breath and spasm powerlessly while the youma had its way with her……

* * *

「Fubueeahg…… Uhh, ahh…… Ahh……」

Mikoto, who swallowed the youma in all of its entirety, could only collapse onto the floor of the room, all of the strength devoid from her body.

A foreign body’s sensation could be felt in the back of her throat still. The youma that swelled in her esophagus was wriggling restlessly. The tail part of its body protruded from her mouth, thrashing about in a violent manner. As if to match its movement, the girl’s body would spasm and twitch from time to time.

However, for some reason, she did not feel any pain even in such a situation. Instead of that, her whole body was dominated by a sense of sluggishness that made even her own body feel incredibly heavy, and she would also feel a mixture of lust and sweet tingling.

The aphrodisiac secreted from the surface of the tentacle-like youma melted both Mikoto’s body and mind, leaving nothing behind.

(Take… ru…… I am going to save you. I promise! I will save you no matter what!)

But even so, Mikoto was holding out to her sense of reason, no matter what. If she was to lose to that aphrodisiac, there was no way that she would be able to save her younger sister. And she did not want Takeru to suffer anymore.

「You are so beautiful, Sis. I’m so jealous of you……」

But as it turns out, Mikoto did not understand the feelings of her younger sister in the slightest. Sitting on top of the bed, saliva dripping from the corners of her mouth, Takeru was speaking as if she was in some sort of a trance. Her flushed cheeks and her crossed legs looked absolutely luscious.

「P-Please, stop it, Takeru…… Please, snap out of it! Efuuh! Efuuh……!!」.

It was really painful for Mikoto to even talk right now, while being invaded by a foreign object. She had to cough repeatedly in order to be able to breathe properly. However, no matter how painful it was, she did not take her eyes off of Takeru, not even for a moment. She genuinely wanted for her to come back to her senses.

「Oh, but I am very much sane right now, Sis. Fufu, besides, this is just research. Research to one day destroy all youmas. So you don’t have to worry about anything, and just leave everything to me……」

However, Mikoto really did not understand her younger sister’s heart at all. While muttering something incomprehensible, Takeru got up from the bed and approached Mikoto, who was still lying on the floor.

「Don’t worry, Sis. It’s a very comfortable research, so you can relax and just leave everything to me.」

While licking her lips and smiling in a bewitching way, Takeruy smacked her tongue and peeled off the sticker that hid her nipples behind it.

「Kufuh!」

「A-Ahh!! So hot!」

As soon as Takeru did that, long and huge threads of milk started to erupt from the tips of her nipples, falling down onto Mikoto’s face. Her cheeks were lined with hot fluids, as if she was suddenly taking a lewd hot shower.

「…… Ahh, aaahhh…… AAAAHHH……!!!」