It's been a week since my wife, a career woman, went on a long business trip. I can't take my eyes off the huge breasts of my wife's mother, Yuri, who came to take care of me instead. He decides to take a peek at Yuri's exquisite boobs body no matter what, but what he catches a glimpse of is Yuri's obscene delinquency as he immerses himself in masturbation. Her body was much more glamorous than I expected, and I was able to catch a glimpse of her because I was breathing heavily, but if she asked me, ``Would you like to come in with me? I'll wash your back,'' there was no way I could refuse...