Our most regular contributor to this thread, Thomas II, posted a clip of Nastassja Kinksi's sensual horror flick Cat People where she spends most of the film bra-less or nude.
Participants of this thread should watch that movie. While very tame by today's standards and not great as a "horror" flick, it still hold up well in terms of the sensual tone and eroticism.
But my main reason for this post is to give a public thank you to HBO on behalf of all heterosexual boys of the 1970's and 80's to whom you gave access to this movie and so much other titillation and soft core porn in a pre-internet era.