This “hot” wife appears to be doing all of the “cock riding”, which indicates that she definitely wants a stiff “bone” in her pussy. It also gives me the impression that her lover will be invited to empty his ‘nuts” in her pussy when he reaches a climax.
This wife appears to be having some excellent sexual pleasure with a friend. I have to believe that she has performed in this manner several times before and not always with the same lover. Taking the “bone” from the rear is an excellent way to enjoy sexual penetration for both lovers.