WENTZVILLE — A police officer from Centralia, Mo., was arrested here Monday after arranging to meet a woman and have sex with her 14-year-old daughter in what was actually an FBI sting, federal prosecutors said Tuesday.

Clint Baer, 41, corresponded with an undercover FBI employee for months after running across her profile in the incest area of a fetish website in March, an affidavit filed in court Tuesday by FBI Special Agent Gregory S. Marx says.

During those online chats, text messages and phone calls, Baer, who used the name "general XXX," told the FBI employee what he wanted to do to her and her daughter, Marx wrote. He also spoke about a different 14-year-old girl who he thought might want to have sex with him and forwarded a picture of a female's partially exposed buttocks that Baer said was a selfie sent to him by a 15-year-old, Marx wrote. He also sent the FBI employee pictures of his genitals.

After Baer canceled a series of planned meetings, the two arranged to meet at the Hot Shots bar at 49 Wentzville Bluffs Drive, Marx wrote. After they spent about an hour in the bar, Baer was arrested as they walked to the nearby Hampton Inn, where the teen was supposed to be waiting, Marx wrote.