573.205.  Promoting sexual performance by a child — penalties. — 1.  A person commits the offense of promoting a sexual performance by a child if, knowing the character and content thereof, the person promotes a performance which includes sexual conduct by a child less than eighteen years of age or produces, or directs any performance which includes sexual conduct by a child less than eighteen years of age.

  2.  The offense of promoting a sexual performance by a child is a class C 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.