Louise is skinny dipping, breasts and butt shown briefly. Elena is swimming with her in her underwear.
Louise is shown having sex with her husband, slowly. She's on top. His hands cover her breasts. Both are clearly naked but no nudity is shown. Some movement and kissing.
Elena is shown in the bath pregnant and naked. Breasts shown. Louise is helper her, clothed.
Louise is shown in a bath, breasts barely visible.
The husband exposes a Louise's pubic region and fondles her vulva. He then inserts his entire hand into her vagina. (extremely explicit)