监狱里的犯人如何满足性欲？一个描写狱警和犯人卷入性笔友的危险监狱生活的成熟密闭空间色情故事开始了！
How do inmates in a correctional facility satisfy their sexual desires? A full-fledged confined-space erotic story depicting the precarious prison life of prison guards and inmates involved in sex penpals begins!
