---
title: "Onee-sama no Sei Shori Mazo Benki"
description: "This is a hardcore incest reverse violation story. A shota boy is sexually assaulted by his beautiful older sister (mother)! Situations are: sitting on the face"
image: "https://t.vndb.org/cv/16/27616.jpg"
---

# Onee-sama no Sei Shori Mazo Benki

![Onee-sama no Sei Shori Mazo Benki](https://t.vndb.org/cv/16/27616.jpg)

**Alternative Title:** お姉さまの性処理マゾ便器

**Aliases:** Sister's Maso Toilet for Her Sexual Desire, SISTER'S FEMDOM

**Developer:** Sadistic Alice

**Release date:** Aug 11, 2010

**Platform:** Windows, DVD

**Language:** Japanese, English

**Rating:** 4.7/10 (23 votes)

## Description
This is a hardcore incest reverse violation story.
A shota boy is sexually assaulted by his beautiful older sister (mother)!
Situations are: sitting on the face, penis band, footjob, candle, whipping, and more!

18 base erotic images. About 125 including variations.

2 episodes: older sister edition and mother edition.

[From [DLSite](http://www.dlsite.com/ecchi-eng/work/=/product_id/RE062554.html)]

## Characters
### Adenokouji Sudare (艶小路 すだれ)
- **Gender:** Male
- **Hair:** Blue, Short
- **Engages in:** Cross-dressing
- **Body:** Trap, Teen, Slim, Pale, Phimosis, Nipple Piercing
- **Eyes:** Blue
- **Personality:** Boku, Sister Complex, Effeminate, Mother Complex, Opposite Gender Voiced, Masochist
- **Role:** Son, Servant, Younger Brother, Sexual Submissive
- **Clothes:** Garter Belt Stockings, Naked Apron, Bracelet, Choker, Pet Collar
- **Subject of:** Sexual Harassment
- **Voiced by:** Inukai Ao

### Adenokouji Reona (艶小路 麗皇那)
- **Gender:** Female
- **Hair:** Violet, Waist Length+
- **Body:** Slim, Pale, Young-adult, Nail Polish, Visible Nipples, Huge Breasts
- **Clothes:** Necklace, Thigh-high Stockings, Ring, Strap-on Dildo, Bracelet, Garter Corset, Latex Thigh-high Boots, High Heeled Shoes
- **Role:** Mother, Wealthy, Politician, Older Sister, Sexual Dominant, Office Worker, Dominatrix
- **Personality:** Cold-hearted, Genius, Watashi, Sadist
- **Items:** Whip
- **Engages in:** Sexual Harassment
- **Eyes:** Garnet
- **Voiced by:** Ooyama Chiroru

### Hinamine Misaki (雛嶺 みさき)
- **Gender:** Female
- **Hair:** Pink, Long
- **Body:** Teen, Pale, Medium Breasts
- **Clothes:** Thigh-high Stockings, Strap-on Dildo, Baby-doll, Choker, Sailor School Uniform, Ribbon Headband
- **Role:** High School Student
- **Eyes:** Pink
- **Voiced by:** Shiina Amane

### Takagi Ayaka (高城 綾香)
- **Gender:** Both
- **Hair:** Blond, Long
- **Body:** Teen, Pale, Futanari
- **Eyes:** Violet
- **Clothes:** Thigh-high Stockings, Choker, Sailor School Uniform
- **Role:** Class President, High School Student, Sexual Dominant
- **Voiced by:** Shiina Amane

## Shops
- [Official Website](http://hiyoban.sakura.ne.jp/onesama/products_onesama_top.htm)
- [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ062554.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=724370)

## Releases
### Japanese
- **2010-07-11**: Onee-sama no Sei Shori Mazo Benki - Trial Edition - [Official website](https://web.archive.org/web/20190824205253/http://hiyoban.sakura.ne.jp/onesama/products_onesama_top.htm)
- **2010-08-11**: Onee-sama no Sei Shori Mazo Benki - Download Edition - [Official website](http://hiyoban.sakura.ne.jp/onesama/products_onesama_top.htm), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=14151), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ062554.html), [Gyutto](https://gyutto.com/i/item42353), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0043479/), [Getchu](http://www.getchu.com/soft.phtml?id=710135), [DL.Getchu](http://dl.getchu.com/i/item9780), [DMM](https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_029987/)
- **2010-08-13**: Onee-sama no Sei Shori Mazo Benki - Package Edition - [Official website](http://hiyoban.sakura.ne.jp/onesama/products_onesama_top.htm)
- **2011-11-15**: Do S inran Onee-chan ni Zutazuta ni Sareta Boku - DVDPG - [Official website](https://web.archive.org/web/20120325231755/http://www.ktfactory.tv/detail?t=1&i=3c6c819a89bf2757cf9ab2621df49763), [Getchu](http://www.getchu.com/soft.phtml?id=724370), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=50ktpg152/)

### English
- **2025-04-24**: Sister's Maso Toilet for Her Sexual Desire, Sister's Femdom

## Tags
Sexual Content, ADV, Rape, Brother/Sister Incest, Genius Heroine, Protagonist with Voice Acting, Shotacon, Nukige, Protagonist's Sister as a Heroine, Reverse Rape, Only a Single Heroine, High Sexual Content, Trap Protagonist, Blood-related Mother/Son Incest, Protagonist's Blood-related Mother as a Heroine, Shota Protagonist, Female Domination, Strap-on Dildos, BDSM, Erotic Spanking, Pegging, Doggy Style, Siscon Protagonist, Wax Play, Ahegao, Sex in Front of an Audience, Consensual Erotic Humiliation, Straight Shotacon, Facesitting, Piss Drinking, Cock and Ball Torture Devices, Anal Fingering, French Kiss, Nipple Piercing, Heroine with Latex, Mouth Gag, Single Handjob, Single Blowjob, Anal Sex, Heroine with Huge Breasts, Stock Sprites, Female Domination Only, Protagonist with a Face, Mothercon Protagonist, Blood-related Brother/Sister Incest

## More Games from Sadistic Alice
- [Shibotte! Futa Milk](https://pinovel.net/v9724)
- [Maid ni Natta Boku](https://pinovel.net/v5202)
- [Imouto-sama no Oose no Mama ni](https://pinovel.net/v4005)
- [Kyuusei no Ori](https://pinovel.net/v4309)
- [Masoluv](https://pinovel.net/v3769)
- [Loli Maso](https://pinovel.net/v4008)
- [Nekoneko Mistress](https://pinovel.net/v3603)
- [Onee-sama no Sei Shori Mazo Benki](https://pinovel.net/v4724)
- [Anakku No.1 ~Bloomer Shoujo no Kyoushi Ijime~](https://pinovel.net/v6630)
- [Tsumugi-sama no Hanamuko Choukyou Nikki](https://pinovel.net/v10622)
- [H na Inma no M Saimin](https://pinovel.net/v24924)

---
*View the full details at [pinovel.net/v4724](https://pinovel.net/v4724).*

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```