A family friend accused of molesting two sisters "took fleeting opportunities" to gratify his sexual interest in the children, a prosecutor has told a jury.
During her closing address in the ACT Supreme Court on Friday, prosecutor Greta Cuthel said the "persona [the accused] projected outwards to the family was very different to the man he was inside".
The trial of the now 30-year-old man, who cannot be named for legal reasons, began last week.