On Sunday, a 43-year-old man contacted the Nassau Police 3rd Squad to report that his online sex partner was blackmailing him with videotapes of their raunchy encounters. Apparently, the unnamed victim met Shawn Payne, 34, (who, by the way is a woman—not that it matters) through Adult FriendFinder, an online dating Web site. After they had done the deed (a lot), Payne told the guy that she would give the tapes to his ex-wife unless he forked over $50G. So the poor dude had no choice but to call the cops and put an end to his online fun. Payne was arrested, but not before she accepted $210 as a down payment from the victim. Michael Largue, 45, a financial adviser from Franklin Square and Payne’s other lover, was also charged. The Daily News has more juiciness.