Only one scene of actual nudity, when Reggie is seen fully undressed from the rear standing on a beach. Many scenes - mostly Reggie's fantasies - of a woman with her blouse partly undone, exposing her bra and cleavage.
Sexual dissatisfaction, temptation, and choices made regarding marital infidelity play a major role in the story line. On one occasion, a man and woman are seen in a hotel room partly undressed considering having sex. On another occasion, a woman and a man, not her husband, are seen at windows, having had sex. On repeated occasions, sexual activity with thrusting fills the screen: by a pair of tortoises, and by a pair of what I think are otters.
Inappropriate advances in the workplace, such as kissing and touching without consent, occur a couple of times; these scenes are brief.
Two elderly persons' comments about their active sex life makes other characters uncomfortable, but the language is never vulgar.