AURORA, Colo. (CBS4) – A man accused of sexual assault on an Aurora teenager has been sentenced to nine months in prison.

Police said Robert Richard Beattie Smith, 29, posed as a massage therapist when he contacted a 15-year-old girl on Craigslist. She had posted about seeking employment and he contacted her to practice his massage therapy on her and her 21-year-old sister, promising them compensation.

READ MORE: Denver Cops File For Injunction To Stop Mandatory Vaccines
Robert Richard Beattie Smith (credit: Aurora Police)

Robert Richard Beattie Smith (credit: Aurora Police)

The suspect met the victims at their home on Jan 11, 2015. Police say the suspect first performed massage on the 15-year-old and assaulted her.

READ MORE: SUV Hits, Kills Bear On South Kipling

“(The teen) felt inappropriate things were going on, but due to the mental state that she was in, she didn’t say anything. When he moved on to her sister, her sister put a stop to it,” police spokeswoman Diana Cooley said at the time.

The sister told him to leave and contacted law enforcement, police said.

MORE NEWS: Large Fire Erupts At Westminster Apartment Building; Federal Blvd. Partially Closed

Smith was also wanted in Davis, California, on similar charges.