Meh, as much as I like Uschi, this is softcore. Lip kissing and breast play, hardly qualify for hardcore, even back then. The cunnilingus was obviously fake. The position of their heads and hair blocking the view are dead giveaways. The technology and skillsets to show everything, certainly existed then. Uschi just wouldn't do hardcore, so I rank her well below all those busty babes who did.
Try as I might, I haven't been able to identify the chick opposite the devine Uschi. With the excepttions of Kitten Navidad and Candy Samples, Uschi's soft-core films were usually done with slim, small-busted chicks so as to emphasize Uschi's incredible and gorgeous tits.
Thank you.