The Incest Story in this book is among Dean and his 2 Sisters and later on with his Mother featuring different Tempting Taboos comprising of seduction, foreplay and lots of steaming sex .
In previous part Dean sees his elder sister, Lindsay topless after returning from school to home. After that this all lead to more teasing and finally the Incest journey continues.
In this part Mother, Jenna also joins in the journey of Incest and Dean has lot more with his family.
In the third part Devon, the younger sister gets pregnant and there is more sex.