The lady is clearly a lover of anal sex, she penetrates into anal without any tension and with visible pleasure! It's nice to meet such a partner in life, I have not met yet! It's true, you can talk them into anal sex, but they don't get pleasure out of it. They just let you gently enter the anus and gently fuck you. And I would love to meet such a passionate lover of anal!
As that monotonous movie was filmed, without the zest that is. Almost no different from the mass of similar ones. A flat and not especially attractive lady and the standard set of poses. Boring to watch!