Ye Kai got out of the Time-Space Capsule, and he noticed that only a day passed in the outside world, and in his Time-Space Capsule, three months passed.
Ye Kai understood that with this Time-Space Capsule, all of his beloved women could become Spiritual Artists in just a year before those Haremaru Federation beastkin land on their island, not that he wanted his woman to fight them, but having the strength to protect themselves was a great thing for him.
Now he understood this. He thought of his other two older sisters. Ye Kai just conquered them so he still had 1 month 10x bonus lust points. However, he was only able to get lust points from them if they decided to do a threesome because his cultivation was way higher than theirs. He couldn't earn a single lust point. He could only earn lust points from them if he convinced them to do a threesome.
Now understanding this, Ye Kai went to find Ye Xin. Because he thought that Ye Xin was too open about sex and she seemed like someone who didn't mind threesomes whereas Ye Kaori was way too shy about these things, Ye Kaori might reject out of shame, so again, Ye Kai going to use aphrodisiacs on Ye Kaori to make her embarrassment disappear and there was no reason to use aphrodisiacs on Ye Xin as she was open about sex.
Ye Kai entered Ye Xin's room and saw her wearing a black dress, sitting in a straight posture on the chair, and in her hand was a pen as she was writing something.
Ye Kai looked at her beautiful face, nodded as he walked behind her, and hugged her from behind.
"What are you doing?" Ye Xin asked.
"Well, now that I did that thing, now your are my woman, even your sister so I have every right to do this," Ye Kai confidently said and turned her bit and kissed her lips.
At first, she resisted but soon allow Ye Kai to kiss her, as she also kiss him back, their tongue met each other, and evil fire rose in Ye Kai's lower region. He didn't waste time and lifted her in his arms and made his way to bed.
He laid her on the bed, and on top of her, he was still kissing and moved his hand behind her to remove her dress, but before he do that, she broke the kiss and looked at him as she asked, "Do you promise one thing before this?"
"What?"
"if you're going to say I'm your woman then you have to take every responsibility of this," Ye Xin said and looked into his eyes. Although she knew his little brother right now only loved her body more than her, she knew that soon he came to love her more than her body.
"Of course, since I dare to say your mine then your mine with every responsibility it came with," Ye Kai said without any hesitation in his voice.
Hearing his answer, Ye Xin felt her heart surge in warm feeling. Although she knew what he was going to say when he said it, she felt incredibly happy. She moved her face and kissed his lips passionately and moved her tongue faster inside his mouth as his tongue also moved along with her, their saliva exchange, the sweetness of each other tongue raising their body temperature before they knew they were naked.
Ye Kai was rock hard, and Ye Xin was soaking wet, she felt his hard member on her juicy pussy and felt him invading inside her as she moaned and pulled him to kiss him, she wrapped her legs around his waist to make him go even deeper.
As Ye Kai was fully inside her, he began to thrust in, out, in out, in, out until his breathing became faster.
Ye Xin felt his cock that was moving faster and faster inside her, hitting all sensitive spots inside her, making her moan loudly as got orgasm after orgasm. Her legs were tight around his waist, and she couldn't help but have another orgasm. She didn't even get time to recover from her first orgasm until that second orgasm came.
Until Ye Kai didn't come inside her seven times, he didn't leave her alone and kept on pounding her pussy without rest, and when he had done cuming inside her seven times, did he leave her and lay beside her taking deep breaths.
Ye Xin was also taking deep breaths as her body glistened in sweat, her mouth was covered in her saliva, and her pussy was a mess of the white seed of Ye Kai's and her own love juice. She just took a bath from Ye Kai and made her dirty again, but she was happy. If he made her dirty like this every day, Ye Xin was more than willing to get dirty.
"Older sister, how is your cultivation?" Ye Kai asked. Last time after sex, he gave her Martial Liquid; although Martial Liquid items don't take effect immediately it should make her Martial Art Student High Grade.
"I'm Martial Art Student High Grade, and it seemed that in just some day i will have another breakthrough and became Martial Art Master," Ye Xin spoke.
Ye Xin couldn't believe that sex made her Martial Art Student High Grades. If the girls of her island knew this, then all of them would leave shame behind and would rush to her little brother and beg him for sex. Just one day, sex could make her Martial Art Student High Grade, where her oldest brother took three years.
"Good, I will give you some Martial Techniques and other thing, if you practice those thing then it would be easy for you to reach Martial Art Emperor in some years," Ye Kai smiled and said.
Although the truth was that she could become Martial Art Emperor in just half a year if she practiced in Time-Space Capsule, Ye Kai was not going to tell her this for a while.