Neville Crouch, 59, admitted four charges of indecently exposing himself to a seven-year-old girl and a four-year-old.
Sending Crouch, of Holmfield Road, St Annes, to Preston Crown Court to be sentenced. District Judge Jonathon Gosling told him: “I am extremely concerned about your behaviour and the breach of trust. This is a very serious matter and a Crown Court will decide how long you spend in prison as I have limits on what sentence I can pass.”
Martine Connah, prosecuting at Blackpool Magistrates Court, told how Crouch became friendly with the mother of the two girls and did garden work for her.
However when Crouch saw the girls through a window in July this year he would strip, change into the long coat and expose himself to them.
Once he went as far as to go into their front garden.
The prosecutor said that during his time in custody Crouch admitted having worrying sexual feelings towards young females and was scared what he might do to them if he was not stopped.
Crouch was remanded in custody until he appears at Preston Crown Court on August 24.