The boy was found sobbing 45 minutes later in a public lavatory in the nearby village of Shalford. Police said yesterday that the man who did it could strike again.
The boy was picked up by a stranger at 11am on Saturday, driven three miles in a rusty white hatchback car, then assaulted.
His attacker was scruffy, with shoulder-length blond hair and a short beard, and was aged 30- 40. The boy had agreed to take a lift after the driver told him there were 'some bad men about'.