Mo. Rev. Stat. § 573.200: Child used in sexual performance — penalties.

1. A person commits the offense of use of a child in a sexual performance if, knowing the character and content thereof, the person employs, authorizes, or induces a child less than eighteen years of age to engage in a performance which includes sexual conduct or, being a parent, legal guardian, or custodian of such child, consents to the participation by such child in such sexual performance.

2. The offense of use of a child in a sexual performance is a class C felony, unless in the course thereof the person inflicts serious emotional injury on the child, in which case the offense is a class B felony.

3. The court shall not grant a suspended imposition of sentence or a suspended execution of sentence to a person who has previously been found guilty of an offense under this section.