Blonde Sara Leal, who reportedly slept with Ashton Kutcher last weekend, is working overtime to cash in on the scandal. Sources tell us she’s working with an ex-lover-turned club promoter to sell her story. She’s also in cahoots with a paparazzo who plans to sell staged new “street” pictures of Leal. “She gets a cut of whatever [the photos] sell for,” a source said. We revealed Leal has also asked for a six-figure payday from Kutcher to stay quiet about their alleged liaison in San Diego’s Hard Rock Hotel last weekend. She’s been meeting with attorney Keith Davidson, who represented a Betty Ford Clinic worker who filed assault charges against Lindsay Lohan but later dropped them. Reps for Ashton and wife Demi Moore were mum last night. But Kutcher sounded fed up on Twitter, writing yesterday, “When you ASSUME to know that which you know nothing of you make an ASS out of U and ME.” Photos of Kutcher leaving an LA club with a blonde last June got the Web abuzz yesterday, but sources tell us she’s Austin Dawn, a spokesmodel for one of Kutcher’s tech companies. Moore, who had been here promoting Lifetime’s “Five,” an anthology of films directed by her and Jennifer Aniston, Alicia Keys, Penelope Spheeris and Patty Jenkins, was back in LA but stayed unusually quiet on Twitter.