Warning: SPOILERS ahead for You season 5.Youseason 5 makes a reference to "fairy smut," and that may leave viewers wondering if the show is talking about A Court of Thorns and Roses. With Joe Goldberg (Penn Badgley) managing and owning a bookstore, the Netflix series is no stranger to literary references. There are many of them scattered throughout You's five-season run, and the show's final outing continues to lean into its bookish themes. But while Joe's new love interest, Bronte, clearly knows her classics, she also has a good grip on more modern trends and releases.