Two characters moan from a hayloft, obviously having sex, but nothing more explicit is shown.
One character is constantly described as a libertine and it is implied he has many conquests.
A character is described as being constantly pregnant, while a friend advises her (in a rather euphemistic way) to be fitted for a diaphragm.
Contraception is spoken of in an "educational" manner.
A male character screams the word "sex"--to the shock of his companion (and everyone else in the restaurant).
A group of women wordlessly admire a bull's penis, but nothing is shown but their facial expressions. A careless viewer might even assume they are only amazed by the bull itself.