From Showtime:

Chris has never been much of a dancer, but when he catches a glimpse of Jenna, the beautiful woman who runs the dance class Hershel and Roly have been attending, he signs up. Unfortunately, instead of getting to know Jenna better, he's partnered with Irene, a severe and unpleasant woman in her 50's who works as a therapist. When Jenna gives him a few quick tips after class, Chris has Fred Astaire fantasies, but those vanish when she asks if, as a favor to her, he would accompany Irene to her daughter's wedding. Chris reluctantly agrees, only to learn later that Irene is really a dominatrix named ""Mistress Livia.""

And Chris isn't the only one who finds himself in a world of kink. When Cody persuades Yola to mentor Lauren, a friend of his from Harvard, he neglects to mention they're sleeping together. Not only that, Yola must listen as Lauren describes, in explicit detail, all of Cody's exotic sexual trick, none of which he employed when he slept with her.

Meanwhile,