John Stamos has experience dealing with the Olsen twins, so these two hardly rate.
Anyhow, the Michigan pair accused of trying to blackmail the former Full Houser are facing another charge to go with their counts of extortion, federal prosecutors tells E! News.
Kaye Hooker, spokeswoman for the U.S. Attorney's Office in Marquette, says that 30-year-old Scott Sippola and 23-year-old Allison Coss have been charged with using interstate commerce when they allegedly threatened to go public with supposedly embarassing photos of the ex-ER hunk at a 2004 party, unless he coughed up $700,000.
They were arrested in December; the additional charge was filed Monday as "felony information"—meaning the duo will likely cop a plea when they're arraigned on May 10.
Team Stamos previously said the snapshots in question were hardly blackmail-worthy, merely "photos of John posing with fans" that will be available for everyone to see after the case gets resolved.
All the pretty faces are on display in E! Online's Mug-Shot Mania gallery.