There is considerable talk about sex between the big bossy guy and old man Hank. Jack makes known his desire for Jenny in conversations. She refuses at first. Later she dances (slow dance) with Jack and again pushes him away. Later she and Jack go out to the caboose where he makes a move on her. Initially she pushes him off again and goes to hide. Later she comes out and he says he has wanted her for many years. He then disrobes her dress to reveal her bare breasts. (Sex is implied but not shown). Afterwards they return to the office and nothing else is said about the subject from Jack.
A woman is seen in the bathroom at the train station changing clothes. She removes her bra and breasts are seen from the side, briefly. The version on YouTube has nudity pixiled out.
At one point a box is found containing porno magazines including Playboy. A discussion about this occurs between two men.