Having already dispensed with two trips to rehab before her 21st birthday, it seemed like only a matter of time before precocious trainwreck Lindsay Lohan would find herself in either a sex tape or naked-photo scandal (apparently, those "chilling," vaguely bicurious knifeplay pics were just a sign of less-clothed images to come), the always-reliable, low-impact way to keep one's name in tabloid headlines for days at a time. Today's Page Six reports that Lohan may be the victim of a shakedown by a blog taunting her via IM (the preferred extortion tool of the MySpace generation) with the possibility it has nudie pics snapped by boyfriend-for-a-minute Callum Best: