ST. LOUIS (AP) - A St. Louis County man has pleaded guilty to sex trafficking for forcing two women into prostitution, including a mentally disabled woman.

Federal prosecutors say 26-year-old Carl Mathews of Breckenridge Hills pleaded guilty Friday in U.S. District Court and faces sentencing June 12. His sister, 27-year-old Carla Mathews, also of Breckenridge Hills, is awaiting trial on similar charges.

Mathews forced the women into sex in the St. Louis area from 2010 through October 2012. Authorities say the mentally disabled woman was forced to sleep and use the bathroom in a closet, and was supplied with little food. The woman was also beaten and set on fire.

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