(a) As used in this Code section, the term: (1) ‘‘Coercion’’ shall have the same meaning as set forth in Code Section 16-5-46. (2) ‘‘Deception’’ shall have the same meaning as set forth in Code Section 16-5-46. (3) ‘‘Sexual crime’’ means prostitution, sodomy, solicitation of sodomy, or masturbation for hire as such offenses are proscribed in Chapter 6 of Title 16. (4) ‘‘Sexual servitude’’ shall have the same meaning as set forth in Code Section 16-5-46. (b) A person shall not be guilty of a sexual crime if the conduct upon which the alleged criminal liability is based was committed by an accused who was: (1) Less than 18 years of age at the time of the conduct such person was being trafficked for sexual servitude in violation of subsection (c) of Code Section 16-5-46; or (2) Acting under coercion or deception while the accused was being trafficked for sexual servitude in violation of subsection (c) of Code Section 16-5-46. (c) A defense based upon any of the provisions of this Code section shall be an affirmative defense.