FERA-200 My mother was my sex practice partner. I broke up with my girlfriend because the sex with my mother was too good, so I was crazy about it and came inside her over and over again. Mayumi Sanada

Her son is worried that sex with his girlfriend is not going well. Mayumi, unable to bear seeing her son depressed, suggests that he use herself as a practice subject for sex training. In order for her son to have a good relationship with his girlfriend, Mayumi uses her body to teach him all kinds of techniques. However, Mayumi’s amazing techniques leave her son weak in the knees…