As soon as I came back to my senses, worries started flooding in one by one.

    First of all, the biggest concern.

    I cummed inside my sister.

    Am I crazy..? No, you should have come to your senses and gotten out of there, you crazy person..!

    Since Eun-chae was taking birth control pills regularly and naturally ejaculated every time she did so, I think I was a little more relaxed this time.

    But I don’t think my sister will take birth control pills or anything like that.

    He’s probably someone who’s never masturbated and isn’t really interested in sex.

    “…Umm.”

    I still feel like peace of mind comes to me when I look at my older sister who is sleeping peacefully, as if she is tired.

    “Haa..”

    It is inevitable that sighing follows after that.

    Are there any reliable contraceptives or anything like that in stores?

    I think there might be something there, so I try activating the store.

    [ Welcome to the Item Shop! ]

    [List of items available for purchase]

    [Sure contraceptive pill (10)]

    Um, yeah. I thought there would be.

    [Sure contraceptive pill (10)]

    [ Guarantees reliable contraception without side effects. Certain effects are guaranteed only when consumed within 24 hours after intercourse. ]

    [Purchase price: 1pt]

    Is it okay to be convenient like this, store…?

    At first I thought it wouldn’t be of much use.

    These days, I am realizing that it is much more useful than I thought.

    [1pt will be deducted. ]

    [You have purchased reliable contraceptive pills (10). ]

    It’s a pill that looks quite ordinary at first glance, but since I’ve already seen the effects of herbal tea before, there’s no room for doubt.

    “24 hours.”

    After 24 hours, I thought there was no need to wake up my sister, who was sleeping well, so I quietly brought a blanket, covered her, and went into the bathroom to take a shower.

    In the future, if I only think about birth control, I can use this.

    Although I no longer have any points left, I have no regrets.

    Because I am now able to completely prevent any situation that might cause my sister to worry.

    If you are taking a shower with warm water.

    “Dohyun, wash it?”

    Suddenly-

    I naturally open the door and see my sister coming inside.

    As soon as I woke up, it seemed like it came to me right away. Seeing my naked body, my lower abdomen started to tingle again. This is a physiological phenomenon, so I can’t help it.

    “Pervert.”

    He looks embarrassed at that, but he doesn’t seem to be in a bad mood and slowly approaches me.

    “Hmm, since he’s gone, I guess I need to calm him down?”

    “How are you going to calm me down?”

    I’m not telling you to calm him down and come out alone, but I think he’s planning to do anything if he sees you coming close.

    If possible, I think I would like to receive paizuri.

    My sister has big breasts, and inserting a dick between those soft breasts is something I have never experienced before.

    “What should I do?”

    “I think you can do it with your heart.”

    “That kind of taste?”

    Most men like big breasts.

    Of course, I don’t only like people with big breasts, but if possible, I would like them to be as big as possible.

    “Yes, I totally like that. I’ve never received paizuri before, so I’m curious.”

    “Have you never received it? So you’ve never done anything with Eunchae?”

    For some reason, I nod obediently as my eyes sparkle very brightly.

    “Ah, indeed. Eunchae doesn’t have that big breasts. Well, I definitely haven’t tried it!”

    “Don’t you like it so much? Eunchae will be sad when she hears this.”

    “Hehe, whatever. I guess it’ll be okay since I’m not here~”

    My older sister, smiling, comes to the front, bends her knees, and begins to gently measure the angle of inserting the cock into her chest.

    “Hmm, this is what it feels like? Can I do it like this?”

    “I think my back would hurt a bit in that position.”

    “Ah, then I will sit here, so you can put it on yourself.”

    When my older sister sits on the chair in the bathroom and gently puts her breasts together.

    gulp-

    I start to get really nervous at the thought of going in between that big, soft lump.

    What does it feel like? It’s a completely different feel from doing it with your mouth or putting it directly into your vagina, right?

    Sigh-

    If you come closer and insert your dick between the gathered breasts…

    Soft~ soft~

    “Kuu, ah..! Crazy, this is.. paradise..!”

    The soft, soft feel that completely surrounds your cock makes you think that this might be heaven.

    “How about it? I like it a lot?”

    “Ugh, yes.. I really feel like I’m in heaven..!”

    “Then how about doing it this way?”

    Are you excited about a situation you are experiencing for the first time, or is your sister also curious?

    Using the breasts gathered on both sides, slowly sweep up and down as if rubbing the dick, and repeat.

    When the soft texture sweeps up and down the pillar and even touches the glans, the feeling of immense pleasure arises and the thought of spraying semen on my sister’s face arises.

    “Ugh, ah..! Sister, if you do that, I might cum right away..!”

    “Hey, that’s right?”

    Rather than stopping, I saw my older sister making various attempts, including pressing and releasing pressure on her chest to stimulate it even more.

    “Quuk, cum, cum..!”

    Byurururut-!

    I spit out semen while being pressed against my chest, and the semen that was spit out was right on top of my sister’s chest.

    And I ended up burying it right up to my chin.

    “…Wow, it looks like it feels really good. Hmph. It’s good to have big breasts.”

    Who is saying what to say?

    “Yes, I definitely have big breasts… I like them.”

    I never thought I could try paizuri.

    And that’s pie made by my older sister.

    I just went crazy, really.

    “Whew.. Shall we wash together?”

    “Are you going to do something dirty again?”

    “No, I packed too much today.. I don’t think I can do it anymore.”

    Of course, if I’m with my sister, my dick will continue to erect, but that doesn’t mean I can do it indefinitely.

    I am also a person who has limitations in physical strength and also in stamina.

    Of course, that eel rice bowl… I might have to buy it quickly and try it.

    “Hmm, ah. But what I wrapped inside earlier… what should I do? Should I go to the gynecologist and get medicine?”

    As we were washing our bodies together in warm water, I flashed my thumbs up at my older sister, who looked slightly worried as if a thought occurred to me.

    “Don’t worry about that. I have a birth control pill that has no side effects and is definitely effective.”

    “Hmm? Is there such a thing?”

    “Yes, so you don’t have to worry.”

    “Umm, if Dohyun is like that, then so be it.”

    Although I may have doubts, I am just thrilled that my sister completely believes what I say.

    I think it would be a good idea to go out and give her birth control pills first, then sit on the sofa and fool around a little more.

    “Ah, but what should I say to Eunchae?”

    As I walk out of the shower, a second worry suddenly comes to mind and I talk about it.

    Now that the biggest issue has been resolved, the next concerns start to come in one by one.

    “To Eunchae? I guess we can just say that the two of us did it.”

    “No, but… wouldn’t that be a bit like that?”

    Of course, he is a partner with Eunchae, and rather than dating his older sister, there is a higher chance of them remaining partners.

    Of course, it’s not that I don’t want to date if possible, but considering my sister’s current situation, it’s highly likely that dating will be difficult.

    Anyway, I ended up making another partner without even telling him.

    I think Eunchae might feel bad.

    “Huh? Eunchae was the first to tell me that she supports becoming a partner with you?”

    “…Did you two talk about that?”

    “Yes, we talked about that before when I told you that we were partners.”

    ..Hmm, is it okay for things to go this smoothly?

    “If you have another partner, just tell me. Because as much as you want is okay.”

    No, I mean, not that bad…

    Oh, I don’t know.

    Good is good.

    Whatever you decide, go to sleep and do it.

    That time has already passed.

    If that was going to be the case, the idea of having both Eun-chae and older sister as partners should not have been entertained from the beginning.

    “Uh, okay.”

    “Eun-chae said that we should play 3p later?”

    …Well, if it’s Eunchae… she’s definitely the type of person who can do that.

    “He definitely has a perverted side.”

    “Wow, that happened once or twice. I used to do more in the past.”

    Did you do more than you do now?

    “I’ve known you since I was a freshman in high school, and you don’t know how embarrassing it was to say something like that back then.”

    He was a different guy from the beginning.

    “Well, thanks to you, I developed some curiosity, so I guess I’ll say thank you this time.”

    “Are you thankful that you developed such curiosity?”

    “Right? If it wasn’t for that, Dohyun wouldn’t have thought of having sex with you like this?”

    Well, I’m definitely thankful for that.

    When I nod vigorously and agree, my sister smiles.

    “Oh, really. When I received the call from a hidden camera, I felt like the world had ended. Somehow, I feel really happy now.”

    “As for the hidden camera issue, it will all be resolved if you hire a lawyer and leave it to you. Oh, now that I think about it, you told me to call you in the evening.”

    Considering that quite a bit of time has passed, I might be able to contact you right away, but…

    “But since I’ve had a bit to drink now, should I just leave a text message and contact you tomorrow?”

    Of course, I was sober, but it was quite late.

    Now, I feel like I want to enjoy this time alone with my sister more.

    “Ugh, that would be nice. I don’t want to be disturbed when we’re together.”

    It seems that my older sister had the same thought, and came to lean on my shoulder.

    “…good.”

    “But you stood again.”

    “…They say this is a physiological phenomenon and can’t be helped.”

    Honestly, I didn’t know I was this healthy either.

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