A group of men wander around throughout most of the movie in their underwear.
Several homoerotic hazing rituals are seen (a group of men are forced to strip down to their underwear then they are paddled on the butt and sprayed with a hose).
When a man in white underwear is sprayed, his butt is visible.
Some men take a shower (nothing below the waist seen).
It's implied that a man and a woman have sex (some noises are heard from another room and they are seen in bed together afterward).