Sara Leal didn't think Ashton Kutcher was lying.
Back in October, the 22-year-old spoke with Us Weekly about her one-night stand with Kutcher, 33, in San Diego on Sept. 24 -- his sixth wedding anniversary with Demi Moore.
Margin Call actress Moore, 49, finally came to grips with her husband's betrayal on Thursday, announcing her plans to divorce "with great sadness and a heavy heart" in a statement. In an apparent nod to Kutcher's sordid fling with Leal, she added, "As a woman, a mother and a wife there are certain values and vows that I hold sacred, and it is in this spirit that I have chosen to move forward with my life."
But before Leal and Kutcher slept together after a raging party in his suite at the Hard Rock Hotel in San Diego, the Two and a Half Men star claimed his marriage to Moore was already on the rocks.
"He told a group of us that he was separated" from Moore, 48, the San Diego-based Leal, told Us Weekly's Melanie Bromley.
After meeting Kutcher ("I was very surprised!") in the bathroom in a hotel suite, Leal admits that, instantly, "there was some sort of attraction" between them. After jumping, naked, into a hot tub with Kutcher and a group of other women, "We ended up being alone," she explains. "One thing led to another."
But even before Kutcher's marriage was over, Leal regretted the encounter. "My life has been a mess," she told Us. (Kutcher also did not wear a condom during their two sexual encounters, Leal said.)
"I'm a normal 22 year-old girl, and I spent the night with someone who I thought was separated," she says. "If I had known he was happily married, none of this would have ever happened."
Watch the video for more of our exclusive interview with Leal -- additional details on their X-rated night together, the "awkward" morning after, and more.