Flower & Snake II 2005 on netflix

The beautiful Shizuko and her husband Toyama Takayoshi have a loving relationship, But Takayoshi is getting older and isn’t always able to perform. His primary source of gratification involves observing his wife in sadomasochistic scenarios so he commissions a painter, skilled in the arts of bondage to bring these fantasies to life. Soon, Shiziko becomes a willing and submissive participant in fulfilling the S&M fantasies of not only her husband but a slew of rich lecherous men.