Get ready, Las Vegas! Britney Spears is planning an encore. According to Star Magazine, this time she wants to hitch her wagon to professional hanger-on Sam Lutfi. In fact, an insider told the publication Britney already announced her marital ambitions to her lawyers and ex-hubby, Kevin Federline. "[The lawyers] begged her to at least get a prenup, but she didn't seem to be listening."

K-Fed's none too happy, either. "Kevin has seen Sam lose his temper," said a family spy. "We hear he swears a lot and makes very derogatory statements when he's alone with Brit. Kevin has forbidden Britney from having Sam around the boys. In fact, Kevin has threatened to get a restraining order. She'll lose custody if she allows Sam around them, Kevin will make sure of it."

But will the danger of losing her kids be enough to keep Brit from heading down the aisle a third time? A Star source claims it's unlikely. "Britney is completely under Sam's spell. Everyone sees through him, except her. I hear that he stays with her most of the time, and she pays for his food, his bar and restaurant tabs and his clothing. She takes car of everything."

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