The court heard that Simoko committed the crime during the year of 2014 and September 17 this year at Zambalero Village when the convict illegally married the victim against the will of her parents.
The court further heard that the convict and the victim were staying together as a family.
The convict pleaded guilty to the charge of defilement contrary to Section 138 of the Penal Code.
First Grade Magistrate Dorothy Kalua, who presided over the case , said she handed Simoko a stiff sentence to deter other would-be-offenders.
Simoko is from Zambalero Village in the area of Traditional Authority Chilooko in Ntchisi.