An Evans City man who attempted to arrange sex with a 13-year-old girl over the Internet will serve 3 to 6 years in state prison.

Despite already agreeing to the punishment in a plea agreement with the state attorney general, 47-year-old Dennis Lee Belles this morning asked Butler County Judge William Shaffer to show leniency.

However, the judge stayed in line with the agreed sentence.

According to court records, Belles in February 2013 used the Internet to communicate with a woman who claimed to have a 13-year-old daughter.

Initially seeking “open family sex,” Belles allegedly asked the mother if he could have sex with her and her daughter. The woman, who really was an undercover agent, kept up the ruse that continued for several days, under the guise that she did not care if he had sex with her child.

On Feb. 8, 2013, Belles allegedly started chatting with a second agent, who impersonated the girl.

He sent her several sexually explicit messages, documents said, and eventually set up a tryst with the girl at the Cranberry Mall. When Belles drove there, agents arrested him.

Belles pleaded guilty to all of the charges: unlawful contact with a minor, attempted involuntary deviate sexual intercourse with a person less than 16 years old, criminal use of a communication facility, and attempted indecent assault.

Additionally, he pleaded guilty to possessing and distributing two images of child pornography.

In addition to the prison time, Belles, who is a truck driver, must register his whereabouts with state police for the rest of his life.