PASADENA - The operator of a boot camp for troubled teens was charged Wednesday with sexually assaulting two 14-year-old girls in 2004.

Kelvin "Sgt Mac" McFarland, who operates Family First Growth Camp in Pasadena, pleaded not guilty to sexual penetration by a foreign object, forcible rape, oral copulation of a person under 16, lewd acts upon a child and unlawful sexual intercourse during a Wednesday arraignment in Pasadena Superior Court.