My mother-in-law, who's recently become interested in voluptuous, mature women, is so shy that it makes me hard. (Kuroki Rena VENX-299)

Isn't my mother-in-law incredibly promiscuous? After getting married and living with my mother-in-law, Rena, I started to notice her allure. One day, I actually had the chance to see her changing clothes. She was wearing a corrective bra, her breasts were so full they almost burst out, so voluptuous. Her rounded hips, combined with her defined waistline, were truly captivating. Of course, I love my wife, but my body was beyond my control.