Britney Light is seeing a therapist for her deviant thoughts regarding her stepdad. She selected this therapist because his methods are unconventional, but they work. The therapist starts by having Britney close her eyes to visualize the most sexually exciting scenario with her stepdad that she can and then describe it. Then he tells her to take off her panties and imagine the scenario playing out as she masturbates. While the therapist describes the salacious situation, he can't help but whip out his stiffie and start stroking it because he finds Britney and her fantasies so hot.
The next step in Britney's therapy is to substitute her therapist for her stepdad. He lets her know that his cock is now her stepdad's cock so she can use it to play out her fantasies. Although Britney is a little hesitant at first, she agrees to start sucking. Soon she's lost in her own desire as she gobbles that cock and then climbs on top to take it all the way into her dripping pussy.
Riding her therapist's dick with her full tits bouncing gets Britney moaning and gasping with delight, but she's not fully satisfied quite yet. That pinnacle of delight doesn't come until Britney is bent over her chair getting her fuck hole pounded from behind while she dreams of her stepdad. After briefly sucking her therapist's dick one last time, Britney lets him fuck her until he cums all over her belly just like she wishes her stepdaddy would do.