A man does a nude-modeling, his private parts are covered by his hands, only his pubic hair sticks out.
There are several descriptions of sexual incidents, but these are not detailed.
There are four instances of male nudity, but they are "discreet." Two are from the rear, and one is from the side. When one of the men is shown nude from the front, his naughty bits are hidden by his hand.
There are several scenes of sex in public places, but these are either in dark settings or filmed from the waist up.