As used in this Article, the following terms shall have the meanings set forth herein:
DEVIATE SEXUAL INTERCOURSE
Any act involving the genitals of one (1) person and the hand, mouth, tongue, or anus of another person or a sexual act involving the penetration, however slight, of the male or female sex organ or the anus by a finger, instrument or object done for the purpose of arousing or gratifying the sexual desire of any person or for the purpose of terrorizing the victim.
SEXUAL CONDUCT
Sexual intercourse, deviate sexual intercourse or sexual contact.
SEXUAL CONTACT
Any touching of another person with the genitals or any touching of the genitals or anus of another person, or the breast of a female person, or such touching through the clothing, for the purpose of arousing or gratifying sexual desire of any person.
SEXUAL INTERCOURSE
Any penetration, however slight, of the female sex organ by the male sex organ, whether or not an emission results.
A person commits the offense of indecent exposure (sexual misconduct) if such person:
1. 
Exposes his/her genitals under circumstances in which he/she knows that his/her conduct is likely to cause affront or alarm;
2. 
Has sexual contact in the presence of a third (3rd) person or persons under circumstances in which he/she knows that such conduct is likely to cause affront or alarm; or
3. 
Has sexual intercourse or deviate sexual intercourse in a public place in the presence of a third (3rd) person.
A person commits the offense of sexual misconduct in the first degree if such person purposely subjects another person to sexual contact without that person's consent.[1]
[1]
Note — Under certain circumstances this offense can be a felony under state law.
A. 
An person who has pleaded guilty or nolo contendere to, or been convicted of, or been found guilty of violating any of the provisions of Chapter 566, RSMo., or the provisions of Subsection (2) of Section 568.020, RSMo., Incest; Section 568.045, RSMo., Endangering The Welfare Of A Child In The 1st Degree; Subsection (2) of Section 568.080, RSMo., Use Of A Child In A Sexual Performance; Section 568.090, RSMo., Promoting A Sexual Performance By A Child; Section 573.023, RSMo., Sexual Exploitation Of A Minor; Section 573.025, RSMo., Promoting Child Pornography; or Section 573.040, RSMo., Furnishing Pornographic Material To Minors; shall not be present in or loiter within five hundred (500) feet of any school building, on real property comprising any school, or in any conveyance owned, leased, or contracted by a school to transport students to or from school or a school-related activity when persons under the age of eighteen (18) are present in the building, on the grounds, or in the conveyance, unless the offender is a parent, legal guardian, or custodian of a student present in the building and has met the conditions set forth in Subsection (B) of this Section.
B. 
No parent, legal guardian, or custodian who has pleaded guilty or nolo contendere to, or been convicted of, or been found guilty of violating any of the offenses listed in Subsection (A) of this Section shall be present in any school building, on real property comprising any school, or in any conveyance owned, leased, or contracted by a school to transport students to or from school or a school related activity when persons under the age of eighteen (18) are present in the building, on the grounds or in the conveyance unless the parent, legal guardian, or custodian has permission to be present from the Superintendent or School Board or in the case of a private school from the Principal. In the case of a public school, if permission is granted, the Superintendent or School Board President must inform the Principal of the school where the sex offender will be present. Permission may be granted by the Superintendent, School Board, or in the case of a private school from the Principal for more than one (1) event at a time, such as a series of events, however, the parent, legal guardian, or custodian must obtain permission for any other event he/she wishes to attend for which he/she has not yet had permission granted.