They don't make 'em like this any more. You even think about incest themes, you'll get busted quicker'n you can say "Max Hardcore."
Kay Parker's husband has just left her, left her with studly teen son Mike Ranger, to be precise. Parker calls her buddy Juliet Anderson, waking her from a sound sleep between two people. Anderson sets Parker up with a job and when she gets it, Ranger congratulates mom with a distinctly un-son-like kiss. He also spends a little too much time watching mom taking a shower and dressing for comfort, and uses the interest to rev himself up for a tryst with Dorothy LeMay. Mom was showering for a date that turns out to be a swinger party, much to her surprise, which she sits out but she gets a bit itchy once she gets home and in bed, with images from the party flashing back through her head. Especially when she sees sonny boy stretched out naked. She almost kneels down next to him, but resists. Momentarily. She starts blowing him, and rather than running screaming out the door, he accepts this, and eventually fucks her. The next day, she says to the son that it was a big mistake, but he disagrees, and does her again.
Parker, upset, admits this to Anderson, who salaciously wants all the details, masturbating as Parker tells her. When Michael Morrison offers to take mom and son up to Tahoe, sonny huffs off. Morrison seizes the opportunity to get it on with Parker. Morrison proposes, and Parker says she wants to do it her way: with Morrison as a lover, and — there's a cut to credits. Maybe some things in this film are still too taboo to remain.
The scenes are cut to a different pace from the current standard, some of the film has degenerated, and there is some obvious overdubbing of dialogue, leading to a sub-par tech score, but these are technical quibbles.