For an Asian woman, the woman is very juicy and ripe. With all the diminutiveness of her build, her ass and legs look great in the cradle position! And besides experienced, funny and without complexes. Who would have refused to have fun with her? What's interesting, the man was never shown, unless you count the close-ups of his dick! So what's the basis for assuming it's the son?
No matter what they say about age, elderly or not. But it's women like that who get pleasure themselves and bring it to their partners, as opposed to young, uptight cocksuckers. The blonde was really going at it, it seems that they haven't had a good time in a long time.