An attorney for actor John Stamos denies the “Full House” and “ER” star had a romantic fling with a 17-year-old girl who six years later is accused of scheming to bilk him of hundreds of thousands of dollars by threatening to sell compromising photos to the tabloids. A defense lawyer made the allegation Monday during opening arguments in US District Court as Allison Coss and Scott Sippola went on trial, charged with conspiracy to commit extortion. Coss, 24, and Sippola, 31, both of Marquette, Michigan, are accused of conspiring to extort $680,000 from Stamos by telling him they had photos of him with cocaine and strippers - pictures prosecutors contend don't exist and that two FBI agents testified they did not find while searching the defendants' house after their arrest. Stamos, 46, is expected to testify during the trial, which resumes Tuesday. But it's unclear if he will address the defense's claim that he had a romantic encounter with Coss when she was a high school student on a spring break trip to Florida in 2004.
