Flower & Snake (1974)

Naomi Tani from the classic 1974 Flower & Snake.

From the liner notes:

Based on the novel by Oniroku Dan, this beautifully lensed film helped usher in the S&M Roman Porno genre in Japan and many numerous sequels and remakes. Flower & Snake ’74 (aka Hana to Hebi) was directed by Masaru Konuma (Wife to be Sacrificed) and boasts an ultra-groovy score by Riichiro Manabe (Godzilla vs. Megalon, Godzilla vs. the Smog Monster).

photo via Harakiri Chamber