Chapter Index

    [Alert: Saved. 1 Wiki Point Used. (Current Points: 2)]

    I added some information to Yuna’s document and closed the app.

    With this, I’m ready to counter her plan.

    The one begging for mercy will be Yuna, not me.

    With that thought, I put down my phone, and after a while, the two people who had disappeared returned to the room.

    “Where did you two suddenly go? Did you have a little chat?”

    “Hehe. It’s a secret.”

    Yuna’s lips were already upturned as she answered my question.

    On the other hand, Seo looked somewhat nervous.

    Unlike Yuna, who seemed confident in her plan’s success, she didn’t seem so sure.

    “Are you going to continue practicing?”

    “No! Today is the day I became the Queen of Oral Sex, so I’ll serve you as a celebration!”

    Her skills have definitely improved, but calling herself a queen shows serious confidence.

    I guess with that level of confidence, she thought she could beat me.

    I pretended not to know anything and replied in a joyful voice.

    “Really? Then can I ask you for a favor?”

    “Hehe. You might faint from pleasure! You’ll join us too, right, sis?”

    “Huh? U-Uh.”

    “Come on, dear. Lie down quickly!”

    At her urging, I lay down comfortably with a pillow like before, but my hands were still tied with hair ties.

    “If you’re done practicing, can you untie these?”

    “Since you don’t have to do anything anyway, I’ll untie them after we’re finished.”

    I can untie them myself if necessary, so I’ll just go along with it for now.

    As I was thinking that, they gathered around me.

    Seo was on the left side of my lower body, and Yuna was on the right.

    The same setup as before during practice.

    “Sis, let’s take turns. I’ll go first!”

    I wonder if this is a strategy to conserve energy by taking turns.

    Yuna, full of confidence, eagerly took my cock in her mouth.

    “Haa! Umm… Slurp, woosh….”

    Recalling what she practiced, she slowly moved her head.

    Because she was intensively sucking the boundary between the head and the shaft, a satisfied groan escaped my lips.

    “Oh, good. You’ve really improved a lot.”

    “Hehe. You shouldn’t be surprised by this much, because I can do even better. Slurp, woosh….”

    She continued her service after saying a word.

    Her eyes were filled with a desire to completely empty my balls.

    “Woop, slurp… Oop, haa… Oop.”

    Yuna licked my cock with her lips as before, teased it with her tongue, and quietly sucked on it like a straw.

    The old clumsy self was nowhere to be seen, and she was full of confidence.

    Seo was also watching her younger sister’s rapid progress with admiration.

    It was an atmosphere where it wouldn’t be strange at all if things went as Yuna wished.

    However, the change in her confident expression came not long after.

    “Woosh… Slurp, woosh, oop….”

    Yuna’s eyebrows were gradually loosening as she sucked diligently.

    For some reason, her eyes were also slightly unfocused, and her cheeks were as red as tomatoes.

    Then, she suddenly spat out my cock and gasped for breath like someone who had just come up from underwater.

    “Haa, haa….”

    “Yuna, what’s wrong? Are you okay?”

    Yuna answered her sister’s question in a voice mixed with panting.

    “That’s… suddenly my body feels hot… B-But it’s okay, sis.”

    She tried to act like she was okay, but this time I asked her.

    “Yuna. Should we just have sex?”

    “N-No! You promised that I and sis would do it for you today. Haa!”

    She tried to continue her fellatio again.

    But before long, she had to take her mouth off my cock again.

    “Haaaa….”

    “Yuna?”

    “Sis… my body feels weird. Feeling dear’s thing with my mouth… My lower region is throbbing so much….”

    “Is it that bad? Have you been holding back a lot lately?”

    Seo reacted like she didn’t know what was going on.

    It was natural that she didn’t know the reason.

    The change that had come over Yuna’s body was because the content I wrote in the Sex Wiki earlier had taken effect.

    [Oral sex makes the vagina unbearably hot. The sensitive tongue and lips touch it, and the vagina protests, saying it wants to eat the cock too.]

    That’s the information I added to the trivia section of Yuna’s document.

    Thanks to that, no matter how hard she tried to please me with her mouth, she would only end up making her own body more restless.

    “Hoo, haa….”

    “Do you want to rest for a bit if it’s hard?”

    “N-No, sis… Oop, slurp. Umm….”

    She pulled herself together and sucked and licked my thing again.

    While feeling the head with her lips and tongue, her lower abdomen must be throbbing like crazy.

    In the end, the face of the girl who spat it out this time was more restless than ever before.

    “Haa, I can’t… I want dear’s thing….”

    She sat down and spread her legs wide, revealing her soaked crotch.

    The tables turned on me so quickly that it was almost absurd, but I didn’t plan on granting Yuna’s wish right away.

    “Hmm… then tell me what you two were talking about outside earlier, and I’ll put it in.”

    “Huh? Th-That’s not allowed….”

    “I won’t put it in if you don’t talk.”

    “But….”

    I was going to make her confess it directly, but it seemed like I needed a stronger bait.

    I untied the hair tie tied to my wrist with my mouth and approached Seo instead of Yuna.

    “Sis. I’ll put dear’s thing in you.”

    “Huh? Me?”

    “Yeah. Thank you for making me feel good.”

    “I didn’t do anything…?”

    “You taught Yuna, didn’t you?”

    “Dear, me too….”

    “Yuna didn’t talk, so no.”

    Feeling Yuna’s desperate gaze, I made Seo lie on her stomach.

    I immediately stuck my cock into her wet vagina, which had only been watching her close sister’s fellatio.

    “Haaang….”

    A sweet sound leaked from her mouth as she accepted my thing in doggy style.

    As I continued to move my waist forward, the head and cervix made firm contact.

    “Ugh, it’s all the way in… Move it, dear….”

    “I’m not going to move it today, I’m just going to make you feel good.”

    “What? Heeuk!”

    I grabbed her waist tightly with both hands and pulled her towards me.

    Her rear end lightly swayed at the sensation of her weak point, the cervix, being crushed.

    Still, she didn’t take the pressure off and continued to press that spot.

    “Ah, ouch! Ugh… Dear, wait a minute… Heouk!”

    It wasn’t like I was thrusting wildly, I was just pressing the inside with force, but her reaction was already intense.

    Of course, it was a natural phenomenon.

    Her cervix and the area around it had been developed by me hitting them so many times.

    “Haa, Dear, stop stabbing…! Kkeuek, this is weird… I feel a tingle in my body when my cervix is pressed… Haa…!”

    She was at a loss because her weak point was being intensively targeted after a long time.

    She was telling me to stop stabbing, but I was planning to make her feel good by using all the knowledge I had about her.

    “Haa! J-Just a moment…!”

    I pressed the entrance of her cervix with my head and slowly drew circles with my waist.

    Compared to the usual piston movement, it was extremely static, but the shaking of her lower body, which was still held by me, showed no signs of stopping.

    “Heeuk! Kkeuk, ugh, haa…!”

    “Sis, this is really your weak spot. It was worth stabbing you so often.”

    “Ugh, haa… No. It feels so good that my head is going blank….”

    “You also like having your breasts touched, right? Here.”

    “Eunghaa…!”

    I lay on top of her and grabbed her breasts, which were hanging down below.

    For her, who likes to be roughly kneaded, I used a strong force that squeezed through my fingers.

    “Eoeuk! Ugh, I love breasts….”

    “You’re such a pervert, Sis. Do you like having your breasts squeezed and your cervix stabbed so much?”

    “Your hands are big too… Heuh, and dear’s thing is big too… So it’s full inside, eungh….”

    “Then how about this?”

    “Hieueueuk!”

    A scream-like moan erupted as I pressed down on her lower abdomen with my fingers.

    It was thanks to the fact that my thing was inside and my fingers were pressing her area at the same time.

    “Hieuk! Kkeuk! Ugh…!”

    Her body, lying underneath, was shaking incessantly.

    An act aimed solely at Seo’s satisfaction, not at relieving my lust.

    Remembering that purpose, I relentlessly tormented her only weak points.

    “Aheuk! Stop, heouk…! I’m going to come…!”

    “Already? You’re my personal bitch, but you’re so sensitive. I guess I’ve been fucking you too much. Instead of apologizing, I’ll make you go.”

    “Eunghieuk!”

    I squeezed her breasts as if I was milking her with my left hand, and pressed down hard on her lower abdomen with my right hand, which contained my thing.

    Of course, I didn’t forget to stab her cervix with my thing as if I was kneading dough.

    “Ieueuk! Heouk! Ugh, there, heuh, n-no, I-I’m co-coming…!”

    “You want to come? Got it.”

    Seo couldn’t even speak properly because of the pleasure.

    I pulled my thing out slightly and then thrust it all the way in at once.

    “Hieugeueueuk!”

    She climaxed with the sensation of the head hitting her cervix.

    Squeak! Squeak!

    Judging from the fact that she even shot out a stream of fluid, there was no need to ask how good it felt.

    I slowly pulled out my thing and laid her on the bed like a mat.

    “Eunghaak, haa… Th-This ish a firtht for he… It wath amahing….”

    Her tongue was so loose that she couldn’t even pronounce it properly, and her eyes were unfocused and staring at the air.

    I had an urge to pounce on her as she couldn’t escape from the afterglow of her climax, but I held back and turned to the side.

    “Haa, haa… I… I want dear’s thing too….”

    Yuna, who was looking at me with heated eyes, was touching her genitals.

    She must have been touching them so hard that the bed sheet was already a mess with fluid.

    “Yuna. Would you like me to put my thing in you?”

    “Y-Yes….”

    “Then tell me what you talked about outside earlier.”

    “….”

    She must be on the verge of losing her reason because of the effects of the Wiki, but it was amazing that she was still hesitating.

    I brought my thing closer to her, as if to show her, so that she could escape from her painful dilemma.

    “Look. It’s been getting bigger since earlier because I haven’t shot, right? It would feel really good if I put this in.”

    “Haa… Dear’s thing is so hard. It looks like it’s going to burst….”

    “If you want me to put it in, you have to talk, right?”

    Yuna’s eyes were fixed on my throbbing thing, which was even showing veins.

    In the end, she couldn’t resist the temptation.

    “T-To be honest, I was going to make dear shoot a lot with sis….”

    “Why?”

    “I wanted to see dear… begging that you can’t do it anymore because it’s too hard…. I wanted to be like a queen in a porn film at least once….”

    “I see. So that’s what happened.”

    “I’ve told you everything… Now please put dear’s thing in me. My hole is so stuffy because I want dear’s thing….”

    Her eyes were pleading for a reward for telling the truth.

    I brought my thing even closer to her and said.

    “Okay, I got it.”

    “Aah… Dear…♡”

    Yuna’s face brightened up in an instant.

    However, what she would receive from now on was not a reward, but a punishment.

    “Instead, as punishment for trying to trick me, I’m going to keep doing it until I’m satisfied.”

    “Huh…?”

    “I won’t give you any slack even if you beg that it’s too hard, so be prepared.”

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