The Duke of Burgundy

Even I, in my 63 year-old female dotage, got the bug. What a great pair. Both the characters and the actors. The story is tight; every moment is important; and there are a lot of silent moments. A couple of lesbians, one rich and older/one cute and younger, live together, love together, and sex up a storm. For the younger one, sex is every waking moment. Even moments with no physical contact. For her the act of being a sex slave makes her deliriously happy and sexy. She always has orders for her dominant queen. She dresses her, tells her how to sit, and how long. The dom is getting a little tired of the whole deal, or is she?