The son decided to film his mother. On camera. She gladly agreed, in addition to showing off her feminine charms. Warmed by naughty thoughts, the mother pleased his healthy cock and balls with a magnificent blowjob. And the son did a good job, repaid her in a mature way - he fucked her in the asshole. But it seemed to turn her on even more.
What I don't get is, who's the dude sleeping on the couch next to her while daddy's banging his daughter? Her brother? Husband, maybe? He didn't even lift a finger during the whole thing. Or maybe he just squinted and jerked off quietly?