State police charged 39-year-old Frank Meyer of West Haven, Conn., and 42-year-old Brett Bartolotta of Cavendish, Vt., with aggravated sexual assault and slave trafficking Wednesday.
The New Haven Register reports Meyer is a West Haven Fire Department captain and Bartolotta is a former West Haven firefighter.
Authorities say a 25-year-old man came forward with the allegations last month, saying the assaults began when he was 12 and the sexual relations continued to last year.
The assaults allegedly occurred in Ludlow and Cavendish.
Both men pleaded not guilty and are detained on $50,000 bail.