Chapter Index

    Su-a and Sia grew up in a very blessed environment from a young age.

    Her mother’s side of the family was very wealthy, so they had everything they needed or wanted from a young age.

    It played a big role in creating their personalities.

    Usually, raising a child by buying them all the things they want or asking them to come or not is discouraged as the child becomes stubborn or selfish as he or she grows up.

    It’s a little different in the M world.

    This is the preferred parenting method because it helps develop children’s S tendencies and helps them live while suppressing their M tendencies.

    There are many cases where people who cannot tolerate M tendencies expose themselves or masturbate alone on the streets, are despised by others, and end up in jail.

    It is very important to suppress the M tendency while increasing the S tendency even a little.

    Among them, Su-a and Sia were raised to be able to suppress their M tendencies and played a big role in making them who they are today.

    Moreover, they also have another characteristic, which is that they have a very strong lesbian and incestuous tendency.

    From an early age, the two grew up as each other’s lover, master, and slave, and because of that, they never wanted to be trained by someone else.

    I grew up with the optimal disposition to become a professional trainer who can easily suppress my desires when teaching others.

    Therefore, although I have not yet obtained professional qualifications, it is certain that once I become a professional assistant teacher, I will immediately become a top-ranking assistant teacher.

    These two have outstanding abilities as teaching assistants.

    The chairman knows it well, so if he receives recognition from both of them for sending Taeyang to Su-ah and Sia.

    From the chairman’s perspective, it is worth considering not only letters of recommendation but also investments.

    From Taeyang’s perspective, he must win, and Su-a and Sia want to train Taeyang, so they plan to make him completely their slave.

    From the perspective of people in the M world, there are very few people who can endure their training for more than an hour.

    Usually, in less than 30 minutes, most people end up begging to become their slaves.

    This time, when Taeyang agreed to the bet, they started training with the idea that he would become their slave.

    The girls started betting with excitement, as if they had a new toy.

    ‘Hmm… doesn’t look like much at first glance?… well, he’s tall for a man… and his dick is big… but it’s really big…’

    Su-a, who casually stepped on Taeyang’s dick and pulled it out, pretends nothing is wrong, but is actually surprised by Taeyang’s big dick.

    He hides the fact that his heart is beating fast with a cocky attitude.

    ‘I think Sia was really surprised too.’

    As they are twins, Su-a and Sia know each other’s feelings well no matter how much they act.

    Now, Su-ah could see that Sia was just as surprised as she was.

    Since we usually only teach women, this is our first time teaching men, but when preparing to become a teaching assistant, we also learned things about male and female teaching assistants.

    I thought I should know everything and since I had learned it through sex education, I had the knowledge and there would be no problem.

    ‘I heard it’s usually less than 10cm, but this size is too big!’

    I was taken aback by the fact that their size was incomparable to that of men in the normal M world, but now they were training Taeyang.

    He can’t show it on the outside and is stimulating Taeyang with his usual cocky, mesquite expression and tone of voice.

    Sigh

    Tap, tap, tap, tap, tap, tap, tap.

    “Ugh!!”

    “Heh~ Does it feel good to have your dick grabbed by the little guys?❤”

    “I thought you were a child…but your brother is a pervert who likes children❤”

    “Oh, no!…Ugh….This is an unavoidable physiological phenomenon!”

    “Lie~❤”

    “Oppa’s dick is leaking such transparent fluid?❤”

    The feel of the cock that she touched for the first time was hotter than Su-ah expected, and she was a little nervous because it was too big for her small hands to hold at once.

    ‘It’s the same regardless of whether it’s a woman or a man!’

    It’s a little awkward to train a man and touch his cock for the first time, but Taeyang is feeling the pleasure they both give him at the same time.

    Moreover, no matter how strong their mental power is, it is normal for the M-world’s demonic humans to not be able to resist if they are repeatedly verbally criticized and stimulated.

    Therefore, Su-a thinks that Taeyang’s resistance and rebellion will not last long.

    “I think you like your feet more than your hands?”

    “Then let’s do it with our feet❤”

    Sigh

    “Ugh! These little guys….ugh!”

    As expected, stimulation with just their hands wasn’t enough, so they turned around, put their feet out on either side, and massaged Taeyang’s cock.

    ‘What~ Are you feeling it right? After all, it’s natural that you like feet more than hands❤…. We’ll make you our slave in no time.’

    The stimulation of the girls’ hands was weak, but as the two who were good at using their feet stimulated Taeyang, he felt it even more and was leaking cooper fluid.

    Although he is angry at the humiliating pleasure he has experienced for the first time in his life, Taeyang’s body is feeling external stimulation that he cannot resist as a man.

    ‘Still, it’s holding up better than I thought? Normally, it only takes 10 minutes to howl like a dog in heat.’

    The two of them are massaging Taeyang’s dick with their feet and are surprised to see that Taeyang is holding up better than expected.

    No matter how proud a woman is, if two people step on her pussy at the same time and make fun of her, she will feel like she has completely given up resistance after 10 minutes.

    Taeyang has already been being bullied for 20 minutes now, and let alone ejaculating, his eyes are not showing any signs of frustration.

    ‘If you do this…Siaya’

    ‘Yes… Suaya’

    Su-a, who judged that it would be impossible to subdue Taeyang for the remaining time like this, exchanged glances with Sia and immediately changed her posture.

    “Hold it well, brother❤ Then I’ll do it right this time, so get up”

    “It feels so good that you can’t cum right away like a pig in heat❤”

    “Phew……see you in 40 minutes”

    flinch flinch

    ‘W-What is this❤….This is my first time looking at eyes like this…Ah, Sia felt it too❤’

    Even though he was humiliated with his hands and feet for 20 minutes and verbally criticized, unlike other M males, Taeyang glared at them with an angry expression.

    Sua and Sia felt a chill for the first time in their lives as their eyes looked as if a predator that had not yet revealed its teeth was looking at an unknown prey.

    ‘This is my first time feeling like this… Let’s calm down… After all, you are a true majo too. No matter how strong you pretend to be, you can’t compete with the techniques of training countless females!’

    Su-a and Sia were embarrassed by the sensation they felt for the first time, but since it was their turn for at least 40 minutes, they did not worry and gave orders to Taeyang.

    “Hehe❤ Oppa, your body is quite good~ It’s different from other weak men❤”

    ” That’s right❤ Your dick is big and you might be the first to endure our caress for 20 minutes❤”

    “Hmph..I don’t care if I do that for a hundred days because I don’t feel good”

    “Hey~ Really?❤”

    “Then this time I’ll make you feel really good❤”

    Taeyang stood proudly, Sia towards the cock, and Sua towards Taeyang’s butt.

    ‘I don’t know if I can sleep with her, but… I guess Sia can do it well, right?’

    This is a technique that they often use to completely degrade female masochists by stimulating both their front and back holes at the same time, causing them to climax in humiliating pleasure.

    “What I’m doing now is that the lawyer just couldn’t stand it and changed like that, so be prepared, brother❤”

    “That’s right❤….. Among the females we train, there is no one who can withstand this…. Of course, not even you❤”

    “Hmph! I’ll make you cry in front of me in 40 minutes”

    “I’ll look forward to it, oppa~❤”

    Su-a snorted and responded to Taeyang’s comment.

    ‘huh? ‘Are you Sia?’

    However, when Su-a looked at Sia as if she didn’t understand why Sia blushed and swallowed her saliva at Taeyang’s comment, Sia also came to her senses and looked at the dick.

    Now, Su-a couldn’t see Taeyang’s face because she was behind him, but Sia saw Taeyang’s face looking down at her angrily.

    Without realizing it, his masochistic instincts were heightened and he became excited.

    Su-ah, who was unaware of this fact, used her usual cocky tone and provoked…

    “Then❤ Ha-eup❤ Jju-up❤ Heu-eup❤ Woo-up❤”

    Swoosh….Tap, thump, thump, thud.

    “Ugh!?”

    Without hesitation, Su-a put her mouth towards Taeyang’s buttocks and started a rimjob, grabbing Taeyang’s dick and shaking it.

    ‘Man’s butt…it might be better than you think❤’

    Even though Su-a is capable of suppressing her masturbation to the point of being a professional trainer, she seems excited by this kind of behavior and, unlike before, her pussy is dripping with pussy juice.

    ‘Let’s quickly train my brother and use him as our exclusive biological dildo❤’

    As a female, Su-a instinctively likes Taeyang, an S male, and even though she doesn’t usually look at him, she expects to use Taeyang to have lesbian incest training sex with Sia.

    “Then I’ll make your dick feel good too, oppa❤..Uuup❤ Jjuup❤ Hangb❤ Uung❤”

    Like Su-ah, Sia also put a dick in her mouth to stimulate Taeyang, but her small mouth wasn’t enough, so she used her hands to stimulate him.

    “Ugh!? Hey, what kind of technique is this for kids!”

    ‘No matter how much you endure, you can’t beat us even if you’re a Majoin❤…but sucking your brother’s butt hole might be better than you think❤’

    Sua, who was confident that they would win based on Taeyang’s reaction, regained her composure and began to tease Taeyang.

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