Oh yes, of course. There is one
-->> ?Schwanzgeil, Verpisst Und Pervers? from the late 80s.
screencaps (all credits to p4pst from another forum) -->> http://www.dumparump.com/view.php?id=d66448P
Released on a label called ?Undercover? which seems to have relations with Dino Baumgartner of later DBM ... She also appears at the same time in Bizarr Interview: Hellene Chevalier (-->> http://egafd.com/films/details.php/id/b0055)
This label mostly released movies with piss an (faked) scat.
I know that you have to look twice before you realise that this is DB. For more informations contact me (you know what I mean)