At the time I chided Steve Cordero about Petra's ludicrously large breasts. Turns out the character was modeled after an actual ludicrously large breasted model. A few years later he produced Helena, an equally astonishing crux character who was more sensibly proportioned but even more incandescently hot, IMHO.
Yes, it was my job to train the females in how to behave properly while being crucified
and present themselves attractively once they're up there -
on the whole, they got the message,
but there's always one ...
There have been at least two Japanese films with this name (Hana to Hebi), plus 'Flower and Snake 2',
and maybe other spin-offs. The theme of a young, frigid wife, with her maidservant, being subjected to
a long course of abuse and humiliation till they both discover their true - and simmering hot -
masochistic sexuality, seems to have endless appeal to Japanese audiences - at least the male ones!