Chapter 1:
Newly married couple leaves for honeymoon leaving their son and two daughters (the boy and girls are step-siblings) behind. Unknown to them and the youngest daughter, the fact is that the boy and eldest girl are in a sexual relationship.

Chapter 2:
The youngest finds out. Turns out she wants a piece of him too, because she fancies her new step brother as well, and she'll do anything to get it.

Chapter 3:
Two more guys and a dark skin girl join the three and round robin sex begins.