Hentai System in a Hentai World

While Haruto fucked her sister, Aki watched the scene intently without taking her eyes off her, she didn't know at what moment, but as soon as Yasuo left, Haruto put his cock in her sister and began to fuck her in front of her and Sena.

On the other hand, Sena couldn't take her eyes off Haruto either and was starting to get wet, normally, seeing your boyfriend fucking another woman would make you feel sad, jealous, disappointed, depressed, and furious, but Sena didn't have any of those feelings, on the contrary, she was extremely aroused, to such an extent, that she started touching herself.

Aki had also started touching herself, but could anyone blame her? The situation she was in was extremely exciting, her sister was getting fucked by a guy she had just met specifically her best friend's boyfriend and now, her sister was begging for his cock, it was an impressive scene.

I continued to fuck Haru mercilessly, ramming her like an animal while she kissed me passionately.

"How could I live without this cock all this time?!" - shouted Haru.

She felt so good that it was impossible to contain her feelings or her moans and right there, while she was being fucked by Haruto, she understood that the reality was that she and her sister had been born to be slaves to this cock, it was completely clear for her, her only goal was to be the Haruto's mistress, his slave and all that they lived until now was a preparation for their meeting, that was something that Haru was clear about and she was sure that her sister will think the same as her in a few minutes, after all they were twins and she knew her perfectly.

After fucking Haru for a while, I felt like I was going to cum, I was going to have another orgasm.

"Fuck, I'm going to cum, I'm going to cum inside you!" – I said as I increased the speed of my thrusts.

"I'm going to cum too, please expel all your cum inside me!" – Haru said.

And, at that precise moment, we both had a strong orgasm, I expelled a huge amount of cum in Haru's pussy while she had a squirt that made my uniform wet.

"Haa... haa..." – Haru sighed.

I pulled my cock out of her pussy making my cum come out of her pussy due to the large amount I released inside her, but it wasn't enough, I wanted more, my cock was still hard, I hadn't reached my limit yet, but I understood that Haru was half unconscious, so I left her next to Sena and put my cock in Aki's face.

"I'm going to fuck you" - I said without hesitation.

Aki began to get aroused, her words made her vagina contract, the strong male smell emanating from his cock made that arousal increase a lot and having Haruto's cock against her nose did not help at all.

"Let's go inside, we can do it there..." – Aki said.

But Haruto ignored her and grabbed her hip, turned her around and placed his cock against her small pussy.

"Are you going to do it here?" - asked Aki, somewhat surprised.

They were only a few meters away from the lab, they could just go inside, close the windows, cover them up and do it there.

"I'll fuck you here because I feel like it! Do you have any problems?" – I said in a strong tone.

"Ah... that domineering tone... I love it" - Sena said with a goofy smile.

Seeing Haruto so dominant, her heart started pounding, her panties were already completely soaked with vaginal fluids, and she already wanted to start fucking with Haruto, she couldn't wait.

"Okay..." - Aki said.

Being treated like this, Aki didn't feel angry at all, but excited, no one had ever dared to talk to her like that and, probably if someone had, it wouldn't have ended very well, but for some reason, she didn't mind being treated like that by Haruto, in fact, she wanted Haruto to be more domineering, but her pride prevented her from talking openly about her feelings.

"Perfect" - I said with a smile.

Then, I started shoving my cock mercilessly.

Normally, Haruto would have been kinder because Aki was a virgin and the pain of losing her virginity was quite high, but his judgment was clouded due to the aphrodisiac, he couldn't think, he just wanted to fuck, fuck this beautiful woman in front of him, make her his women, make her unable to live without his cock.

"I'll turn you into my bitch!" – I said.

Then, I pushed all my cock into her pussy causing Aki to emit a moan that could be heard around.

To her bad luck, today was the training of the football club, which was training on the field, not far from there, so, when Aki screamed, several people from the team heard her perfectly.

"Did you hear that?" - a boy asked.

"Yes" - the boy nodded.

This guy was what we call an ikemen, muscular, blond-haired, blue-eyed, and very good at both sports and studies.

"Wasn't Aki-san and Haru-san's laboratory over there?" - the boy asked.

"Yes, I'll go and see, maybe something has happened, tell the others I'll be back in a few minutes" – the boy agreed.

"Ok, but be careful" - said the boy.

The ikemen nodded and left.

Meanwhile, Haruto started fucking Aki while kissing her.

Aki leaned her weight against Haruto as he rammed her pussy mercilessly.

While at first she felt nothing but pain, that pain disappeared in a few seconds and was replaced by an aamazing pleasure, a pleasure she never believed could exist. Aki couldn't believe it, but what she could believe was one thing, until now, both sisters had lived their lives thinking only about inventing, about improving people's lives, but they had never ever tried to improve theirs, but at that moment she understood, the reason why they had thought that way until now was because of Haruto, because both of them were destined to be his sexual slaves and to be his lovers, it didn't take long for her to understand that this was a fact, it was something that Aki was quite clear about.

Haruto's cock was so good, that her mind was only filled with lewd thoughts, she wanted Haruto to fuck her, to fuck her all day long, for his cock to always be inside her pussy, she wanted to receive his cum, she wanted to be his slave and for Haruto to use her pussy whenever he wants, those were her feelings.

Basically, both sisters were masochists and upon being fucked by Haruto's cock, their true personalities appeared and they became addicted to Kazuya's cock.

But the mastermind of this whole situation was Sena, who knew perfectly well that they would both become addicted to Kazuya's cock, just as she had done, that was because they are her best friends after all and she knows them very well.

The reason why, being his girlfriend, he looked for more girls for her boyfriend was that, to begin with, Haruto already had a harem, so two more girls were not going to make a difference and the second was the arousal, the arousal of seeing her boyfriend fuck other women in front of her while making them his cock slaves, That feeling was... sublime!

But this was just beginning, because Haruto stopped kissing her and started fucking her against a nearby tree while Aki tried to contain her moans so as not to be caught, but she was about to fail, her pleasure was such, that she was about to start moaning like the bitch she was, however, at that very moment...

"Is anyone there? I heard a noise, is anyone hurt?" – asked a voice.

Instantly, Sena, Haruto and Aki were shocked, Haru didn't as she was half unconscious, with an ahegao look, leaning against the wall, completely naked as cum came out of her pussy.