Considering that the stepfather and stepdaughter are almost the same age, I don't see anything shameful or surprising about that. Sooner or later, when the wife should have left, the stepdaughter herself would have insisted on this action. Which is actually evident in the course of the video. The stepdaughter immediately exposed her breasts without thinking. Liked her intimate hairstyle - in times of fashion for naked pubes, such exhibits cause additional desire!
And it would seem that the ass is not particularly fat, but why is it all pimples? And what makes a man so brutal? By licking his asshole and sticking his fingers in it? Brutal is when you rip off a woman's clothes and sharply fuck her in the asshole without preparation! Or long and deep in the mouth fucks without paying attention to the fact that it is hard for the lady and at times makes it hard to breathe! And this is quite normal domestic sex, not even a role-playing game.
Oh, thank you.