How sex affects relationships is a prime focus of this film.
The sex scenes are not strong. Not with todays standards. They are rather very mild with todays standards.
A woman dances provocatively in a semi-sheer dress. Her breasts are seen, and her pubic hair is discernable through the dress. A couple engages in sex - the woman's breasts are visible. The next morning she gets up from bed and stands near the window completely naked. Her shapely butt is visible.
The same woman drinks milk and lets the milk drop onto her chest. She then rubs it on her body where you can see her breast. The milk is implied to simulate cum. She makes out with her husband then oral sex is implied.
The same couple go to a sex shop and the woman uses a dildo as a sword playfully.
The couple play in S&M outfits. The woman slowly runs her hand over the man's clothed genital area.
A prostitute is shown going down on a main character. No nudity shown just the woman's head bobbing up and down.