A group of women are naked but covered in mud, so not completely naked however not clothed either.
Throughout the first season there are several references to sex like a crystal butt plug, a male stripper (although his boxers stay on), a bachelorette party with sex toys visible and talked about.
Couples have fade-to-black sex and wake up together with sheets over them.
A woman is lying in bed talking casually when a man comes out from under the covers between her legs, suggesting he has been giving her oral.
A man says he has a fetish for mascots and that he masturbates when thinking about them.
Two naked male models are seen at the beginning of the series, as part of an art installation. They cover their fronts, but their butts are visible for a scene.
Several women are shown outdoor getting dressed after a party. One of the female extras is fully naked. Female full frontal nudity is briefly visible.