In relation to the age of consent, under Division 10 of the Crimes Act 1900 (NSW), sexual offences involving a minor relate primarily to "sexual intercourse": see Sections 66A-D.
There is also an offence of "procuring or grooming a child under 16 for unlawful sexual activity" which relates to activities of a sexual nature including exposing a child to indecent material: Section 66EB.