Section 130.75. Course of sexual conduct against a child in the first degree

1.  A  person is guilty of course of sexual conduct against a child in
  the first degree when, over a period of time not less than three  months
  in duration:
    (a)  he  or  she  engages in two or more acts of sexual conduct, which
  includes at least one act of sexual intercourse,  oral  sexual  conduct,
  anal sexual conduct or aggravated sexual contact, with a child less than
  eleven years old; or
    (b)  he  or  she,  being eighteen years old or more, engages in two or
  more acts of sexual conduct, which include at least one  act  of  sexual
  intercourse,  oral  sexual  conduct,  anal  sexual conduct or aggravated
  sexual contact, with a child less than thirteen years old.
    2. A person may not be subsequently prosecuted for  any  other  sexual
  offense  involving  the  same  victim  unless  the other charged offense
  occurred outside the time period charged under this section.
    Course of sexual conduct against a child in  the  first  degree  is  a
  class B felony.