Erotic story of a stepson and stepmom

In this erotic story, a stepson and stepmom are caught in a forbidden affair. The stepmom, a mature woman, is not her stepson's real mother, but she is the woman who raised him since his real mother passed away. The stepson, who is not her biological son, is attracted to his stepmom's beauty and sensuality. The stepmother, who has always been a role model for the stepson, is now experiencing a new level of intimacy with him. The stepdaughter, the stepson's biological sister, is not happy with their relationship, but she cannot resist the temptation of her stepbrother's sexual prowess. The stepfather, who is aware of the affair, tries to stop it, but the stepson and his stepmom are too enthralled with each other. The stepfamily is torn apart, but the passion between them cannot be stopped. The stepmo.