Check out the Roman Polanski film 'Bitter Moon'. Good interracial scene in there! Also 'Good Luck, Miss Wykoff'. Though that one has some violent undertones.

Cuck Scene
 

OK, I watched the scene. All I have to say is that them white folks were before their time LOL! If only they had been around a few decades later when Spring Thomas came along and made "N-word sex" all the rage! LOLOLOL!!!