(a) A person is guilty of incest if the person engages in sexual intercourse with another person with whom the person has one of the following relationships:
A male and his child.
A male and his parent.
A male and his brother.
A male and his sister.
A male and his grandchild.
A male and his niece or nephew.
A male and his father's sister or brother.
A male and his mother's sister or brother.
A male and his father's wife.
A male and his wife's child.
A male and the child of his wife's son or daughter.
A female and her parent.
A female and her child.
A female and her brother.
A female and her sister.
A female and her grandchild.
A female and her niece or nephew.
A female and her father's sister or brother.
A female and her mother's sister or brother.
A female and her mother's husband.
A female and her husband's child.
A female and the child of her husband's son or daughter.