These are from my dated memory so any good educated guess is better than I have now. I think all of thes films are of European origin. Here goes: The first one is a softcore film I saw on early 80's late night Cinemax. One of the first scenes has a white mistress undressing her pretty, light skinned, black maid by slowly taking her dress off while standing behind her. The black girl has a nice body, and a look of resigned humiliation, or detachment while this is happening to her. Later in the film, I remember a screenshot of her sitting around a table naked, with the same detached, if not bored look, while another white girl is talking to her.
The next one was also late night Cinemax, I remember the title as 'The Honeymoon Is Over' but I can find no references to that. The scene is also a lez scene where a busty, blond secretary at an office setting is upset over something boyfriend related, and another girl in the office attempts to console and soothe her, by having the blond dangle her grapefruit size tits out the front of her dress into the consoling girls mouth. This is unfortunately a much too brief scene but sizzling, nonetheless!
Another obscure but memorable scene is from a probable late 70's European film, that has a brunette stopping buy some older lady's flat for a kinky beauty treatment that had the brunette laying naked across a table on her stomach, while the older woman dipped into a bowl, to place one at a time, 3 slices of Cucumber into the pretty brunnette's ass crack as she lay there blissfully with her eyes closed. How can one forget a scene like that???!!!