Hentai System in a Hentai World

Hearing that there was someone nearby, Haruto, Sena, and Aki became a little nervous, if anyone found out that Haruto was having a foursome, they would surely be expelled and, although Haru and Aki could not be expelled, their reputation would plummet after this.

"Is there no one? If there's anyone, excuse me, I'm going to go check if there's anyone hurt" - the boy said.

Quickly, Aki, who was nearby, poked her face out.

Luckily, although she was only in her underwear, only her head could be seen as the rest of her body was covered by the thick undergrowth of the place.

"Oh, good morning Aki-san" - the boy said.

"Ah, good morning, Haruki-kun" - Aki said.

Aki knew this boy very well, Haruki was the captain of the football club, a smart boy, with great talent in sports, but that wasn't the reason why she knew Haruki, the reason why she knew him was because Haruki had confessed his feelings to her a few days ago.

Of course, Aki tried to reject him, but he left before she could do so and, from a distance, told her to think twice before she refused him.

Unfortunately for him, Aki forgot about him after a few hours and didn't even think to give him an answer, but just by seeing him now, she remembered that situation.

"Is this something wrong with you?" - asked Haruki curiously.

Aki almost groaned as Haruto had started to move again and Aki almost made an expression of ahegao, but luckily he managed to restrain herself, although she didn't know how long she could do it.

"I-It's okay, my sister and I were picking some plants for one of our experiments and an insect came out of nowhere and scared us" - Aki said.

It was too simple an excuse, but it was all she could think of right now.

Haruto's cock was in her pussy and Haruto didn't seem to want to stop moving, in fact, he increased the pace of his hips.

The question is, could anyone blame Haruto? No, since the twins' aphrodisiac was so strong, and, even after cumming twice, the effects of the aphrodisiac didn't even show signs of going away, right now Haruto was like a beast who only thought about sex and could barely contain himself.

"I see, you guys are always working hard, you're amazing" - Hiroki smiled.

Since the first day he saw them, Hiroki had fallen in love with both girls, but as a good man born in the 21st century he knew that a man could only have one woman, polygamy was bad, according to him, a man could only have one woman, so, after much thought and weigh it at home, he decided that he would confess his feelings to Aki, although he also liked Haru, he didn't want to be a bastard and confess his feelings to both of them, so he made to bite the bullet and chose one of them, however, he knew perfectly well that both twins had not accepted any of the confessions he had received so far, so, when he confessed, he left quickly without waiting for Aki's answer, he believed that if Aki thought about it carefully for a few days, she could understand that he was a good man, and maybe even accept his feelings.

"T-Thank you" - Aki said.

Hiroki was surprised, Aki's face was completely red and she was starting to sweat.

"Is something wrong with you? Your face is very red" - Hiroki said.

"D-Don't worry, it's just that I'm hot" - Aki smiled.

"I see, don't try too hard or you might get sick" - Hiroki said.

"D-Don't worry, we know our limits" - Aki said, trying to contain her orgasm.

"Please leave now, I won't be able to hold back my orgasm" – Aki said to herself in her mind.

The pleasure she was feeling was starting to increase more and more by the minute and Aki was about to moan, she was trying to contain herself, but she couldn't continue doing it for long, if at least, Haruto slowed down his movements, maybe she could hold on longer, but it doesn't seem like that that was going to happen.

"By the way, have you thought about my confession?" - asked Hiroki.

"I see, I guess it was obvious that he was going to ask me" - Aki said in her mind.

However, even though she hadn't thought about it, her answer was clear, no, now Aki had become Haruto's sex slave and all she wanted was to fuck him forever, to be the sex slave of his penis, she didn't want any other man in her life, Haruto was now her life.

"I'm sorry, but I can't accept your feelings" - Aki said with difficulty.

"I thought so, but can you at least tell me why? I don't want to brag, but I'm good at a lot of things and my personality isn't bad either, I'd like to know where I can improve, if I do, maybe one day... you may come to like me" - Hiroki said boldly.

"I-It's not that you're bad, but I'm already dating someone else" - Aki said.

It's not that she was dating someone else, she was more like his sex slave and her mistress as well as her sister, but it was practically the same...

"Ah, I see... well, thank you for being honest with me, now your excuse me, I'll leave, I have something to do..." – Hiroki said.

"Of course..." - Aki nodded.

Then, a little depressed, Hiroki left, however, in his mind, he didn't give up, Aki may have had a boyfriend, but he can still show Aki how cool he was, maybe it was possible that she would still fall in love with him and leave her boyfriend, but for that, she would first have to find out who was her boyfriend...

Seeing Hiroki leaving, Haruto grabbed Aki and began kissing her passionately.

And she did quite well because Aki was going to moan after Hiroki left, but when she was kissed, that moan never came out.

Haruto's cock was so good that Aki couldn't stop thinking about his cock, her only thought was to fuck him, to think about other men? From now on she wouldn't even consider talking to other men, Haruto was enough for her and her sister.

"Fuck, I'm going to cum!" – I said as I swung my hips harder.

"Me too, please fill this sex slave's hole with your cum!" – Aki said.

Getting pregnant? With the new drug that the twins had invented, that was completely impossible, the drug they had invented prevented pregnancy without side effects and was very easy to make, at least for them.

"That's right, you're my sex slave now, so accept my semen inside you as the slave that you are!" – I said.

Then, I pushed once more and mercilessly cummed inside Aki as she cummed as well... Or rather she made a squirt.

"Fuck" – I said as I pulled my cock out of her pussy.

"I want more cock..." – Aki said with a slap on her face.

"I want more cock too... I love it" - said Haru, who had already recovered from the orgasm.

"Now it's Sena's turn" - I said.

I'll decide who I'm going to fuck.

"Perfect, but first... How about we do a stream?" – asked Sena.

The three of us looked at Sena in amazement as Sena smiled.

...

Half an hour later.

After cleaning their pussy, Aki and Haru donned a very provocative dress in which only their private parts could be seen.

Me and Sena did the same thing, basically, we were going to make a stream.

Since I wasn't tired, I didn't mind continuing to fuck, in fact, I think there's still a bit of aphrodisiac left in my body, so I can definitely go a few more rounds.

"Then repeat what I told you to said, otherwise my boyfriend won't give you his cock anymore" - Sena said.

Hearing Sena, they both knelt in front of my cock and talked.