Beloved Wife Diaries(2010)

Young, beautiful, gentle, and feminine... Sanae is the wife that anyone would be jealous of. That is the woman that I am fortunate enough to spend my days with. However, after 4 years of marriage, I still wonder if I am fit enough to call her my wife. Not to mention the erectile dysfunction... She doesn't complain about the lack of sex and is a dutiful wife, but this is just another source of worry for me. One day, a ludicrous thought came to me. "Why don't I have someone else sleep with her and release her sexual frustrations?" Ridiculous? Sure, but as I imagine her with someone else, I'm starting to feel incredibly stimulated...