A boy peeks through a keyhole at his parents starting to have sex.

Soon thereafter he nicks a book on human anatomy, and that evening while in the bathroom, measures the size his own genitals to the pictures in the book.

A scene where the boy (8) has a bath together with his younger sister Annamari (Eszter Kárász, age 7). Includes full nudity of the girl.

A woman doctor is giving the girl a medical examination when the girl reveals to her that her brother is concerned about the state of his genitals, so the woman has him climb up on a table and show them his penis for examination [not shown]. Includes rear nudity of the boy (with the little girl clearly seen looking at his front). The girl makes a reference to his times of arousal by saying [subtitle translation] "He's grown a bone in his willy".

A little later this same woman is having a bath, when the boy walks in and looks at her body. She invites him to put his hand into the water and touch her, which he does.