Everything starts with the desires and dreams of a woman who wants to have a big stepfamily. Amy and Paul are happily married, however, Amy wants to expand her stepfamily and they try many times with Paul. But as a result of the trials, they realize that their stepfamily will not grow and they adopt a stepdaughter.. After a while, Paul wants to adopt a son and Bruce joins the stepfamily. As the years pass, Paul and Amy's relationship worsens. They cannot enjoy the sex and many things they do. After 16 years, Jasmin is 22 and Paul is 20. Amy hasn't had good sex with Paul in about 10 years. Amy sees Paul wank one day and is fascinated by his big cock. Amy retained her strong will for several months. But Amy, who can't take it anymore, surrenders herself to her stepson Paul and they have great sex. At the same time, Jasmin is attracted to her stepdad Paul, and they have frequent sex. Thus, this strange stepfamily goes astray and becomes the subject of the Deviant stepfamily series.