| 4.__If an actor convicted of a violation under subsection 1, |
| paragraph D or I has one or more prior convictions under |
| subsection 1, paragraph D or I the court shall sentence the actor |
| to a mandatory term of imprisonment and order the actor to |
| receive counseling.__The sentencing class for violation of |
| subsection 1, paragraph D or I is one class higher than it would |
| otherwise be under subsection 2 if the State pleads and proves |
| that the actor has been convicted twice or more of crimes under |
| subsection 1, paragraph D or I. |