Let's put it this way. Every man deserves the woman he has. In this case, the husband is a slacker. The wife brought the fucker and instead of immediately kicking the wife and lover out of the house, he just said a few phrases of objection that had no weight among those two. An even greater humiliation was when, after his wife had been fucked, they took and splattered cum on the husband's face and he again bitch-slapped.
The mother was so turned on that she forgot to take her clothes off completely. And the son, making a hole in the pantyhose assertively polished her slit.