There is a girl who is a student at a tailoring school. She has a friend who has a boyfriend and is always having sex. She herself, however, remains a virgin. She sees her brother masturbating one day. She asks her friend to have sex with her brother. Her friend asks her to spread it for her older brother in exchange. It is a deal and the four go on a hike.全部来源：【爱奇艺】【吉吉影音】【西瓜电影】【电影天堂】【优酷视频】【迅雷下载】【百度网盘】【哔哩bilibili】
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