You asked about the film starting at 6:19 in http://xhamster.com/movies/299904/adult_breastfeeding_compilation_1.html. It is a French mainstream movie from 1974, "Les Valseuses" (called "Going Places" in English) with Gérard Depardieu and Patrick Dewaere as two jerks and the woman in that scene is Brigitte Fossey.
http://xhamster.com/movies/299904/adult_breastfeeding_compilation_1.html. It is a French mainstream movie from 1974, "Les Valseuses" (called "Going Places" in English) with Gérard Depardieu and Patrick Dewaere as two jerks and the woman in that scene is Brigitte Fossey.