---
title: "Kyonyuu de Ecchi na Onee-chan-tachi ga Boku no Chi*po o 24-jikan Hanashite Kurenai!"
description: "Our protagonist has three big-breasted sisters. However, his sisters are so in love with their little brother that their worried parents have issued a restraini"
image: "https://t.vndb.org/cv/98/43598.jpg"
---

# Kyonyuu de Ecchi na Onee-chan-tachi ga Boku no Chi*po o 24-jikan Hanashite Kurenai!

![Kyonyuu de Ecchi na Onee-chan-tachi ga Boku no Chi*po o 24-jikan Hanashite Kurenai!](https://t.vndb.org/cv/98/43598.jpg)

**Alternative Title:** 巨乳でエッチなお姉ちゃん達が僕のチ○ポを２４時間離してくれない！

**Developer:** Marine

**Release date:** Feb 28, 2020

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.6/10 (52 votes)

## Description
Our protagonist has three big-breasted sisters.
However, his sisters are so in love with their little brother that their worried parents have issued a restraining order against them.
But when his parents suddenly go on a business trip overseas, his sisters seize the opportunity to make advances on him.
They secretly mix a powerful aphrodisiac into his food, exposing their huge breasts to his rising desires.
While their parents are away, the younger brother couldn't resist the temptations of his older sisters any longer and they ended up having sex!
And perhaps due to the effects of the aphrodisiac, his desire continued to rise no matter how many times he ejaculated.
Then he spend every day having sex with his sisters.
If this keeps up, will his older sisters really get pregnant?!

[From [Getchu](https://www.getchu.com/soft.phtml?id=1288013)]

## Characters
### Nihongi Souta (二本木 颯太)
- **Gender:** Male
- **Measurements:** Height: 169cm
- **Hair:** Brown, Short, Straight
- **Body:** Slim, Pale
- **Eyes:** Hidden
- **Role:** Full Brother, Younger Brother

### Nihongi Hiyori (二本木 日和)
- **Gender:** Female
- **Measurements:** Height: 161cm, Bust-Waist-Hips: 100-63-94cm, I cup
- **Hair:** Brown, Long, Straight, Grey, Sidehair
- **Body:** Slim, Pale, Young-adult, Big Breasts
- **Eyes:** Grey
- **Role:** Full Sister, Older Sister, Middle Sister
- **Subject of:** Pregnancy
- **Clothes:** Turtleneck Sweater
- **Voiced by:** Niiyama Yuuki

### Nihongi Mahiro (二本木 真宙)
- **Gender:** Female
- **Measurements:** Height: 156cm, Bust-Waist-Hips: 90-61-92cm, G cup
- **Hair:** Black, Long, Straight, Sidehair
- **Body:** Slim, Pale, Young-adult, Big Breasts
- **Eyes:** Black
- **Clothes:** Shirt, Cardigan, Bow Tie, Surgical Mask
- **Role:** Full Sister, Older Sister, Middle Sister
- **Subject of:** Pregnancy
- **Personality:** Brother Complex
- **Voiced by:** Aono Musubi

### Nihongi Mizuki (二本木 深月)
- **Gender:** Female
- **Measurements:** Height: 167cm, Bust-Waist-Hips: 94-59-86cm, H cup
- **Hair:** Black, Ponytail, Waist Length+, Straight
- **Body:** Slim, Pale, Young-adult, Big Breasts
- **Eyes:** Violet
- **Clothes:** Suit, Shirt, Skirt, Hair Tie, Blazer
- **Role:** Full Sister, Popular, Older Sister
- **Personality:** Relaxed
- **Subject of:** Pregnancy
- **Voiced by:** Hoshi Moeru

## Shops
- [Official Website](http://www.lune-soft.jp/game/19398)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013222.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1074002)

## Releases
### Japanese
- **2020-02-05**: Kyonyuu de Ecchi na Onee-chan-tachi ga Boku no Chi*po o 24-jikan Hanashite Kurenai! Trial Edition - [Official website](http://www.lune-soft.jp/game/19398)
- **2020-02-28**: Kyonyuu de Ecchi na Onee-chan-tachi ga Boku no Chi*po o 24-jikan Hanashite Kurenai! - [Official website](http://www.lune-soft.jp/game/19398), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=28842), [Getchu](http://www.getchu.com/soft.phtml?id=1074002), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1126mggw0227/)
- **2021-06-04**: Kyonyuu de Ecchi na Onee-chan-tachi ga Boku no Chi*po o 24-jikan Hanashite Kurenai! - Download Edition - [Official website](http://www.lune-soft.jp/game/19398), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013222.html), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0217612/), [DL.Getchu](http://dl.getchu.com/i/item4034814), [DMM](https://dlsoft.dmm.co.jp/detail/mgold_0163/)

## Tags
ADV, Blood-related Brother/Sister Incest, Male Protagonist, Multiple Endings, Nameable Protagonist, Nukige, Group Sex of One Male and Several Females, Early Sexual Content, Pregnancy, Pregnant Sex, Harem Ending, Only Virgin Heroines, Missionary Position, Sounds of Copulation, Long Sexual Scenes, Lactation During Sex, Inbreeding, Triple Blowjob, Anilingus, Naked Heroine with Apron, Ejaculation Forewarner, Brocon Heroine, Doggy Style, Outdoor Sex, Cowgirl, Reverse Cowgirl, Defloration During Common Route, Only Protagonist's Sisters as Heroine(s), Standing Sex, Bathroom Sex, Love Hotel, Soapy Massage, Kissing Scene, Marriage Ending, Background Moans, Quickie Fix Position, Triple Boobjob, Anal Fingering, Only Older Heroines, Adult Breast Sucking, Sex on a Beach, Protagonist's Older Sister as a Heroine, Single Boobjob, Single Footjob, Single Handjob, Single Blowjob, Vaginal Masturbation, Anal Sex, Vaginal Fingering, Protagonist's Full Sister as a Heroine, Heroine with Big Breasts, Only Adult Heroines, Impregnation, Only Blood-related Heroines, Voiced Default Name

## More Games from Marine
- [Oshikake Scramble "Ano Ko to Watashi, Docchi o Erabu no...?"](https://pinovel.net/v6516)
- [Hitozuma Sakunyuu Hanten](https://pinovel.net/v2207)
- [Shiofuki Mermaid "Dame... Coach! Nanika ga Dechauu!"](https://pinovel.net/v5754)
- [Trouble Succubus "Darling, Kon'ya Mo I~ppai Ecchi Shichao"](https://pinovel.net/v624)
- [Hitozuma Sakunyuu Hyakkaten](https://pinovel.net/v2760)
- [Binkan Athlete "So, Soko Dame! ...Oshio Fuichau!"](https://pinovel.net/v1982)
- [Oshaburi Announcer "Sonna ni Nomasaretara... H Shitakunacchau"](https://pinovel.net/v6771)
- [Tsurutsuru Nurse "Hazukashii...... Konna no Dare ni mo Miserarenai......"](https://pinovel.net/v2592)
- [Paizuri Cheerleader VS Sakunyuu Ouendan!](https://pinovel.net/v5222)
- [Kyonyuu Try! -Tanki Shuuchuu Chichi Momi Lesson-](https://pinovel.net/v6591)
- [Oppai Gakuen Marching Band Bu! ~Hatsujou Hamedori Katsudou Nisshi~](https://pinovel.net/v7870)
- [Dekakute Ecchi na Ore no Ane](https://pinovel.net/v9905)
- [Gokkun Athlete! Kyonyuu Medalist no Oshaburi Kyouka Gasshuku](https://pinovel.net/v10974)
- [Oppai Igai ga Dame Sugiru Ane](https://pinovel.net/v12181)
- [Shojo Bitch Darake no Tennis-bu Gasshuku! ~Atashi ga Shojo Datte Shouko ga Doko ni An no yo!?~](https://pinovel.net/v14081)
- [G-Cup Sisters! ~Imouto Darake no Sakunyuu Gakuensai~](https://pinovel.net/v17729)
- [Soku Iki Bishonure Athlete! ~Shiofuki Zecchou Suru Athlete Heroine-tachi~](https://pinovel.net/v19620)
- [Ojou-sama Gakuen Cosplay Harem-bu! "Kyou wa Dono Fuku de Ecchi Shiyokka?"](https://pinovel.net/v19622)
- [Kahogo de Ecchi na Boku no Ane](https://pinovel.net/v22245)
- [Paizuri ♥ Fiancee "Bocchama, Kyou wa Dono Oppai o Meshiagarimasu ka?"](https://pinovel.net/v23169)
- [Kyonyuu de Ecchi na Onee-chan-tachi ga Boku no Chi*po o 24-jikan Hanashite Kurenai!](https://pinovel.net/v27074)
- [Kazoku wa (Ore Igai) Succubus Deshita ~Futari no Ane to Haha to no Seikatsu de Seieki o Shiboritoraremasu~](https://pinovel.net/v47053)
- [Etching App ~Deaikei Appli de Wake Ari Josei to Love Love SEX~](https://pinovel.net/v48736)

---
*View the full details at [pinovel.net/v27074](https://pinovel.net/v27074).*

```json
{"@context":"https://schema.org","@type":"VideoGame","@id":"https://pinovel.net/v27074#game","name":"Kyonyuu de Ecchi na Onee-chan-tachi ga Boku no Chi*po o 24-jikan Hanashite Kurenai!","description":"Our protagonist has three big-breasted sisters. However, his sisters are so in love with their little brother that their worried parents have issued a restraini","url":"https://pinovel.net/v27074","image":"https://t.vndb.org/cv/98/43598.jpg","author":{"@type":"Organization","name":"Marine"},"aggregateRating":{"@type":"AggregateRating","ratingValue":"6.6","bestRating":10,"worstRating":1,"ratingCount":52}}
```