I saw this movie some years ago in a Danish art movie theater.
The scene is in a hotel room where a man, 50 to 60 years old, meets up with a (very) young female lover or escort. It appears that they meet regularly for sex. He gets a phone call from a family member about an imminent sale of their family business, of which he is apparently the head. He seems "beyond" the deal and is not very engaged in the phone conversation. While he is on the phone, the young woman undresses and teases him. Once he is off the phone, their "play" begins, wherein she dominates him. I think there is an indication of her urinating on him, but since this is a "normal" movie, I am not sure how this played out.
It is a fairly short scene, largely decoupled from the rest of the movie.
It could be French or Italian. It is not "Young and Beautiful". I thought it was "I am Love", but I didn't find the scene fast forwarding through this movie.