Mo. Rev. Stat. § 566.211: Sexual trafficking of a child, second degree, penalty.

1. A person commits the offense of sexual trafficking of a child in the second degree if he or she knowingly:

(1) Recruits, entices, harbors, transports, provides, or obtains by any means, including but not limited to through the use of force, abduction, coercion, fraud, deception, blackmail, or causing or threatening to cause financial harm, a person under the age of eighteen to participate in a commercial sex act, a sexual performance, or the production of explicit sexual material as defined in section 573.010, or benefits, financially or by receiving anything of value, from participation in such activities;

(2) Causes a person under the age of eighteen to engage in a commercial sex act, a sexual performance, or the production of explicit sexual material as defined in section 573.010; or

(3) Advertises the availability of a person under the age of eighteen to participate in a commercial sex act, a sexual performance, or the production of explicit sexual material as defined in section 573.010.

2. It shall not be a defense that the defendant believed that the person was eighteen years of age or older.

3. (1) The offense of sexual trafficking of a child in the second degree is a felony punishable by imprisonment for a term of years not less than twenty years or life and a fine not to exceed two hundred fifty thousand dollars if the child is under the age of eighteen. If a violation of this section was effected by force, abduction, or coercion, the crime of sexual trafficking of a child shall be a felony for which the authorized term of imprisonment is life imprisonment without eligibility for probation or parole until the defendant has served not less than twenty-five years of such sentence.

(2) The offense of sexual trafficking of a child in the second degree by a parent, legal guardian, or other person having custody or control of a child is a felony for which the authorized term of imprisonment is life imprisonment. As used in this subdivision, "life imprisonment" shall mean imprisonment for the duration of a person's natural life.