Overview

The younger sister secretly works at an SM club to satisfy her sexual desire, and the older sister is growing frustrated with the couple's nightly activities. One day, the brother-in-law and younger sister run into each other as a customer and an SM girl at a store...Then, the older sister gets in to take the younger sister out, but is imprisoned by the maniacal customer and forced to experience the pleasures of a masochistic woman! The masochist female big-butted sisters, who are in full bloom with their erotic potential, have their big butts and anus thoroughly trained, and they engage in a forbidden double affair, where they find happiness as masochists with enema, anal torture, and whipping!