看護師のひびきは病気になってしまった義弟を気にかけていた。元気なく暮らす義弟の姿に心を痛め、なんとか力になりたいと思うひびき。そんなある日、ひびきは義弟がAVを見ていたことを知る。そしてひびきは女性の体をまだ知らない義弟の為にと、義姉として、看護師として、義弟に性教育を施すことを決意するのだった…。
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GVG-686 Unbeknownst To My Husband, I've Been Giving My Little Brother-In-Law Secret Sex Lessons... Hibiki Otsuki
GVG-686
2018-05-16
121分（HD版：121分）
Genre
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