A mysterious figure is paying $600 to high school boys in Moraga and Orinda to be tied up, tickled and filmed

ORINDA — When parents sit down with their teens to discuss internet safety and the dangers of meeting strangers online, being bound and tickled probably isn’t one of the conversations that comes up.

But, for a handful of teen boys in central Contra Costa, authorities say that’s exactly what happened.

Police in Moraga and Orinda are investigating a tip that involves at least a half-dozen boys being contacted on social media by a mysterious tickler with a proposition. He has been described...