702.17  Sex act.
  The term “sex act” or “sexual activity” means any sexual contact between two or more persons by:  penetration of the penis into the vagina or anus; contact between the mouth and genitalia or by contact between the genitalia of one person and the genitalia or anus of another person; contact between the finger or hand of one person and the genitalia or anus of another person, except in the course of examination or treatment by a person licensed pursuant to chapter 148, 148C, 151, or 152; or by use of artificial sexual organs or substitutes therefor in contact with the genitalia or anus.
[C75, 77, §725.1(7); C79, 81, §702.17]
89 Acts, ch 105, §1; 89 Acts, ch 296, §86; 2008 Acts, ch 1088, §138