Diane Marie Brimble, 47, of Hamilton, has pleaded not guilt in the Warrnambool County Court to six charges - five counts of committing an indecent act with a child and one count of using a telecommunication device to groom a child.

Detective Senior Constable Laura Jordan, of the Warrnambool sexual offences and child abuse investigation team, told the jury yesterday two letters and other items linking Ms Brimble and the boy were found at Ms Brimble's home during a search.

Ms Brimble wrote in one letter that when the boy didn't look at her, her heart crumbled and she wanted to hug and kiss him.

The letter said her heart would always belong to the boy, but she would always have her tattoo (of the boy's name on her chest), the pipe cleaner hearts and ring he had made for her, there would never be anyone else and she had infinite love for the boy.

The trial before Judge Mark Taft is expected to continue into next week.