Lohan, who bared all for a provocative New York magazine spread early in 2008, turned down the big-money offer, with her representative insisting, "If there's nudity, the answer is no. She's not going down that road again."
But Playboy executives are refusing to give up and have almost doubled the money to try and entice the star to make a deal, according to online reports.
Lohan has yet to respond to the offer.
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