The guy knows his stuff - he slowly and methodically fucks her in the anus! And he doesn't care how swollen her labia are and how she caresses them with her fingers. I think the woman just needed a penis in her vagina, or alternatively double penetration with the phaloimitra. And who said the woman even reached orgasm? I only saw the guy come down her anus and that's it!
The advantage of this video, in my opinion, is, above all, its obvious, I would even say, deliberate staging, if I may be allowed to express such an opinion. Otherwise, the activity depicted in the above video is clearly obscene, unacceptable, and sinful. This is my opinion of it.