My son became a training table for my mother who was going to work at a soapland

My husband has become imprisoned, and his household finances are on fire... Ayano decides to work at a soapland where she can satisfy her sexual desires and help her household finances. However, in addition to the handicap of having no experience, I also became completely unaware of erotic things due to the effects of my long-standing sex with my husband. In order to hone his soap techniques before he first goes to work, the store sends you soap items such as mats and perverted chairs... So Ayano comes up with the idea of ​​using her son's dick as a practice tool...