There's really not much I can say about this movie that isn't covered in this 10/10 user review from IMDb.
"I saw this movie in an original version cinema, in a double feature with 'Blow up' of Antonioni. My sister, who is older than me and usually wear a small and provocative top, liked very much the flick and told me that it was one of the most exciting afternoon of her whole life. Then, we returned home, had a shower and went to bed. At present time, I remember this movie as a light in the morning. Now I married, and although we can´t have children, I am very happy. I could not stop thinking about this movie: the script was good and this is not so easy to watch naked girls dancing on a bed. This is high- concept cinema, not Spielberg- when will we have a remake or a sequel? I can´t hardly wait."