This brunette is very bright and liberated, and it's a pleasure to have sex with these kinds of girls. The fact that she has developed her anus like that and then moves it on her own at a brisk pace is rare at all. If she moans sweetly, it means that she gets a high from it, and not just does the job.
Her stretching is enviable, as she also enjoys it. I have not seen such a pose before, and the guy was not watching, and diligently did cunny. After that, in gratitude she gave a deep blowjob and practiced anal.