M-599 - Kinshin Choukyou: The House of M Part 2

An incestuous drama featuring two of the most perverse actresses in the mature AV industry, Ai Okamoto and Mayumi Kusunoki. The story begins with a brother-in-law accidentally witnessing his younger brother's couple having sex. It is a forbidden tale of lust involving two couples, each harboring illicit desires for their respective partners. The way the complex web of relationships—husband and wife, sister and brother, brother-in-law and sister-in-law—eventually melts into 'one' is quite masterful. Furthermore, Mayumi Kusunoki’s professional dedication in daring to step into Ai Okamoto’s specialty genres of 'scat' and 'SM' is truly impressive.