购物后，Mamoru和他的继母Yui坐火车回家。Mamoru很快就成了一列完整的火车，被人们推到了角落，无意间与Yui保持了密切联系。 Yui受到继续接触而兴奋的Mamoru生殖器的触动，甚至脱掉你的裤子一点。 惊讶的Mamoru试图阻止Yui，但是Yui的手没有停止。 Yui对自己的婚姻生活不满意， 最终，我掉到中间，在洗手间里将自己的身体与Mamoru混合在一起。 此后，爱上Mamoru的Yui一直渴望Mamoru，尽管知道Mamoru不应这样做，但她仍然爱上Yui的诱惑
遇播放卡顿或无法播放时，可切换线路播放
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