ok电影天堂第一时间收录《性的研究》并提供免费在线观看。《性的研究》上映于 2015年，是一部韩国制片出品，由Anne,(?),Jang,Chang-myung,(???),Park,Ji-yeol,(???),Park,Yoon-sik-I,(???)等主演的福利片，对白语言为韩语。

《性的研究》剧情简介：Jane is a Korean-American. She is staying at her father's friend's house for a few months while she prepares a chain of massage shops in Korea. However, instead of working on her massage shops, all she's doing is selling sex toys on an Internet broadcasting station. Her boyfriend Tae-in doesn't like what she's doing and tries to make her stop. One day, Jane finds out her mother...

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