Mother has dialogue with younger daughter about use of Kotex and tampons, her objection being tampons might compromise her virginity (This being a common misperception before before widespread use of tampons).
There are some kissing scenes. One of them has the male fondling female's breast underneath her sweater; no explicit nudity.
A man and woman are seen on a couch thrusting, having sex; both are mostly naked but visible explicit nudity includes only bare breast and bare chest due to lighting.