MISSOULA, Mont. -

A registered sex offender pleaded not guilty to raping his roommate.

Matthew Lloyd Voeks, 56, appeared in Missoula County District Court.

Prosecutors say Voeks had been living with a Missoula couple. The victim told police Voeks raped her after she got drunk.

Voeks is currently registered as a transient sexual offender. His bail remains set at $100,000.