As Happy said, it's not statutory rape. However, the following might apply:
14-41. Abduction of children.
Any person who, without legal justification or defense, abducts or induces any minor child who is at least four years younger than the person to leave any person, agency, or institution lawfully entitled to the child's custody, placement, or care shall be guilty of a Class F felony.
14-316.1. Contributing to delinquency and neglect by parents and others.
Any person who is at least 16 years old who knowingly or willfully causes, encourages, or aids any juvenile within the jurisdiction of the court to be in a place or condition, or to commit an act whereby the juvenile could be adjudicated delinquent, undisciplined, abused, or neglected as defined by G.S. 7B-101 and G.S. 7B-1501 shall be guilty of a Class 1 misdemeanor.
It is not necessary for the district court exercising juvenile jurisdiction to make an adjudication that any juvenile is delinquent, undisciplined, abused, or neglected in order to prosecute a parent or any person, including an employee of the Department of Juvenile Justice and Delinquency Prevention under this section. An adjudication that a juvenile is delinquent, undisciplined, abused, or neglected shall not preclude a subsequent prosecution of a parent or any other person including an employee of the Department of Juvenile Justice and Delinquency Prevention, who contributes to the delinquent, undisciplined, abused, or neglected condition of any juvenile.
14-184. Fornication and adultery
If any man and woman, not being married to each other, shall lewdly and lasciviously associate, bed and cohabit together, they shall be guilty of a Class 2 misdemeanor
