Joseph Arpin appeared Wednesday in Grand Rapids federal court, three months after pleading guilty to online enticement. Prosecutors say there were multiple sexual encounters.
The mother of a 12-year-old Allegan County girl reported her missing in October 2013, saying she climbed out a bedroom window to be with Arpin.
Authorities say he drove across the country from San Jacinto, Calif.
Police eventually found them at a convenience store in Crestwood, Mo.
Defense lawyer Chris Gibbons said Arpin is remorseful and admits he "crossed social, moral and legal boundaries."