Lots of talk about sex.

A man falls asleep while performing cunnilingus on his wife. They are later shown having sex, no nudity.

A man opens a drawer where a dildo is shown.

The same man from before is shown sleeping after performing cunnilingus on his wife. His butt is shown.

Two women are shown in bikinis. Their husbands discuss sleeping with each other's wives and having a foursome.

A husband and wife go skinny dipping, breasts, butts, and penis visible.

A man is shown showering. Another man joins him. Upper butt is visible. They are shown later showering again together, and their wives join, breasts visible. They are shown later, all walking around nude, breasts, butts, penises, and pubic hair visible. They engage in a foursome. All that is shown is the beginning of sex and one woman giving the man who is not her husband a blow job, not explicitly.

A woman and two men are shown skinny dipping, butts and breasts visible.

The foursome skinny dips again, butts and breasts visible.

Throughout the rest of the film, the husbands and wives have sex in various places, butts and breasts visible. The women are also shown kissing a few times.

A man and woman are shown at a sex shop with some vibrators and dildos and images of nude women.

Some drinking.

Some marijuana smoking.