Hi again,
I'm also searching for a vintage 8mm loop from mid/late 70s that was in time sold in germany... with following content:
2 beautiful white women are reading an advert in a newspaper and decide to respond to it by postal mail. A few days later a black man is visiting them at home. They start kissing on the sofa and then procedding to sucking, fucking until the black man cums on their faces.
I can't remember the title of the 8mm film, neither if it had sound because I saw saw it once on projector without sound features.
I remember that the paper box cover showed something similar to a black pussy or black genitals on the front and was red colored on the back.
A thousand thanks for posting if aynone konows about it!!!