Caught from Behind 5: Blondes & Blacks(1986)

Buxom Buffy Davis moves into a nearly all-black neighborhood. Although her blonde friends love black studs, she seems a bit prejudiced. However, those omnipresent black fantasies start to take over her life and through some juicy imagined sex scenes (which we get to see up close), she decides that, in fact, once you go black you may never come back.