167.002(5) - As used in the following: any touching of the sexual organs or other intimate parts of a person not married to the actor for the purpose of arousing or gratifying the sexual desire of either party

167.051(3): As used in 167.057 (luring a minor)
(a) human masturbation or sexual intercourse
(b) genital-genital, oral-genital, anal-genital or oral-anal contact, whether between persons of the same or opposite sex or between humans and animals
(c) penetration of the vagina or rectum by any object other than as part of a medical diagnosis or as part of a personal hygiene practice OR
(d) touching of the genitals, pubic areas or buttocks of the human male or female or of the breasts of the human female

163.305(5): As used in 163.325 (ignorance or mistake as a defense) to 163.479 (unlawful contact with a child)
Any touching of the sexual or other intimate parts of a person or causing such person to touch the sexual or other intimate parts of the actor for the purpose of arousing or gratifying the sexual desire of either party