---
title: "Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~"
description: "One afternoon on a holiday -- Our protagonist, Mitsui Shuusuke, has left his parents' home and is living alone while attending university. His younger sister, M"
image: "https://t.vndb.org/cv/13/140013.jpg"
---

# Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~

![Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~](https://t.vndb.org/cv/13/140013.jpg)

**Alternative Title:** ごっくん！おにーちゃんみるく♪～ぷにぷにおっぱいな妹と～

**Developer:** Pita Fetish!

**Release date:** Apr 15, 2011

**Platform:** Windows, DVD

**Language:** Japanese

**Rating:** 5.9/10 (9 votes)

## Description
One afternoon on a holiday --
Our protagonist, Mitsui Shuusuke, has left his parents' home and is living alone while attending university. His younger sister, Mitsui Hina, suddenly shows up for a visit.
When Shusuke asks what's wrong, Hina hugs him and, crying, tells him that out of curiosity, she used a magic spell she learned on the internet, and her breasts grew larger.
How can she cancel the effects of the magic... "Only my big brother i can ask to do something like this for me..." Hina said, looking depressed.
After researching the magic Hina used, he finds out that her breasts are growing as a side effect of the magic, and that drinking the semen will cure the side effect.
Hina is confused as she learns what she has to do next, but it's to restore her breasts to their original state, and more importantly, the semen belongs to her brother...
Hina blushes as she mutters these words, and Shusuke understands her feelings as he picks her up and leads her to bed...

## Characters
### Mitsui Shuusuke (満井 修介)
- **Gender:** Male
- **Role:** University Student, Older Brother

### Mitsui Hina (満井 ひな)
- **Gender:** Female
- **Measurements:** Height: 147cm, Bust-Waist-Hips: 92-55-82cm
- **Hair:** Brown, Twin Tails, Waist Length+
- **Body:** Teen, Slim, Pale
- **Eyes:** Blue
- **Role:** Younger Sister
- **Engages in:** Lactation
- **Clothes:** Ribbon Hair Tie
- **Subject of:** Breast Expansion
- **Voiced by:** Yukito Saori

## Shops
- [Official Website](http://www.masterup.net/pita-feti/1stproduct/top.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ005813.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=689883)

## Releases
### Japanese
- **2011-04-15**: Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~ Download Edition - [Official website](http://www.masterup.net/pita-feti/1stproduct/top.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=14534), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ005811.html), [Gyutto](https://gyutto.com/i/item54385), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0053277/), [DL.Getchu](http://dl.getchu.com/i/item1003162), [DMM](https://dlsoft.dmm.co.jp/detail/ggs_0569/)
- **2011-04-28**: Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~ Package Edition - [Official website](http://www.masterup.net/pita-feti/1stproduct/top.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=14534), [Getchu](http://www.getchu.com/soft.phtml?id=689883)
- **2011-05-20**: Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~ Pakkun Hen - [Official website](http://www.masterup.net/pita-feti/1stproduct/top.html), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ005812.html), [Gyutto](https://gyutto.com/i/item56791), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0053278/), [DL.Getchu](http://dl.getchu.com/i/item1003163), [DMM](https://dlsoft.dmm.co.jp/detail/ggs_0570/)
- **2011-05-20**: Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~ Gokkun Hen - [Official website](http://www.masterup.net/pita-feti/1stproduct/top.html), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ005813.html), [Gyutto](https://gyutto.com/i/item56792), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0053279/), [DL.Getchu](http://dl.getchu.com/i/item1003164), [DMM](https://dlsoft.dmm.co.jp/detail/ggs_0571/)
- **2012-03-16**: Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~ - [Official website](http://blueberry-soft.com/bbslpg/bbslpg018.htm), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=1223bbslpg018_m/)

## Tags
Magic, ADV, Incest, Brother/Sister Incest, Male Protagonist, Single Ending, Nukige, Protagonist's Sister as a Heroine, Only a Single Heroine, Early Sexual Content, Anal Penetration, Boobjob, Blowjob, Lactation During Sex, Breast Expansion, Cunnilingus, Only Loli Heroines, Deepthroat, Only Protagonist's Sisters as Heroine(s), Oppai Loli Heroine, Only Younger Heroines, Sex with Protagonist Only, Only Blood-related Heroines, Protagonist's Younger Sister as a Heroine, Protagonist's Full Sister as a Heroine, Blood-related Brother/Sister Incest, Only Virgin Heroines, Defloration

## More Games from Pita Fetish!
- [Gokkun! Onii-chan Milk♪ ~Punipuni Oppai na Imouto to~](https://pinovel.net/v6760)
- [Gokkun! My Darling ~Kinpatsu Puni Kyonyuu na Kon'yakusha no Choukyou Days~](https://pinovel.net/v8493)
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- [Gokkun! Osanazuma ~Kurokami Puni Kyonyuu na Niizuma to no Shinkon Life~](https://pinovel.net/v10222)
- [Break / Pride](https://pinovel.net/v10549)
- [Osananajimi to Kekkon Shitara Otsuki no Maid mo Yattekita Ken](https://pinovel.net/v11774)
- [Love Love Otokonoko Ryou ~Boku o Ubaiau Otokonoko to Otokonoko](https://pinovel.net/v12135)
- [Imouto no Chuunibyou to NEET o Naosu no wa, Ore no xx Dake tte Maji?](https://pinovel.net/v12990)
- [Maou ga Moto no Sekai ni Kaerenai no wa, Ore no xx ga Tarinai Sei?](https://pinovel.net/v13860)
- [Issho ni Massage♪ ~Osananajimi to Imouto to~](https://pinovel.net/v15997)
- [Baka na Imouto o Rikou ni Suru no wa Ore no xx Dake na Ken ni Tsuite](https://pinovel.net/v16143)

---
*View the full details at [pinovel.net/v6760](https://pinovel.net/v6760).*

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