The woman who put the nail in the coffin of Ashton Kutcher’s marriage to Demi Moore last night warned he could cheat again on his new girlfriend Mila Kunis.

Sara Leal advised Mila not to trust the "Two And A Half Men" star — and apologized to Demi for the affair.

“Once a cheater, always a cheater," Leal told The Sun. "If I were Mila I’d be careful, he doesn’t have the best track record. But she’s obviously willing to take that risk.


“If I was dating a guy that had cheated on his wife I would be a little suspicious," she added. "It would probably make me extra crazy and extra insecure. I’d definitely keep an eye out.

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It was in September 2011 that Leal slept with Ashton in a San Diego hotel room — on his sixth wedding anniversary, sparking the end of his marriage to Demi.

The 23-year-old Texas-born beauty claims he bedded her twice — and even wanted a threesome with her female friend.

Sara had been out drinking with girlfriends and met Ashton by chance as she headed to a pal’s room at the hotel.

It happened to be next to the actor’s lavish suite — and party girl Leal and her friends were invited in.

The next morning Ashton appeared to have no regrets.

“I kissed him goodbye and left at about 9am, she said. "I didn’t get his number.”

“I’ve been cheated on so I know how terrible that feels," she added. "I can’t even imagine what it feels like to be cheated on by a husband and have it blow up in your face. My intention wasn’t to go out and ruin a marriage. I think Demi handled it in the best way she possibly could.”

Go to The Sun for the full story.