David Parker of Saylorsburg pleaded guilty Monday to a single count of child sex trafficking in the agreement with prosecutors.
In return, prosecutors are recommending a 30-year sentence in federal prison. He faced life in prison if convicted at trial.
Parker admitted he brought the child to Luzerne County to be molested between June and August 2010.
The boy says he was forced to dress as "Tony the Tiger" at the parties where he was assaulted.
Attorney General Josh Shapiro has said the boy was abused for nearly eight years, starting in 2009.
Two men and a woman from Pennsylvania and two men from Virginia are also charged.
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