《性的研究》由八戒电影网提供免费在线播放，《性的研究》导演：Lee Jun (이전) ，《性的研究》主要演员：Anne (앤) Jang Chang-myung (장창명) Park Ji-yeol (박지열) Park Yoon-sik-I (박윤식) ，《性的研究》剧情介绍：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 in the States is sick and while she's back home, Tae-in gets into a car accident. Jane is used to testing her sex toys on Tae-in so while he's sick her sales drop. So she finds other men to test her toys on...