Is Sara Leal the Mistress Between Demi Moore and Ashton Kutcher?

Demi Moore is in the spotlight once again, but this time it's regarding rumors that her husband Ashton Kutcher has been cheating on her with a woman called Sara Leal and that their marriage is over.

It is being rumored that the 23-year-old has accused Kutcher of cheating on Moore after a night of booze and hanging with the boys at a San Diego night club on Friday.

According to TheDirty.com, Kutcher spent Sept. 24, the anniversary date he shares with Moore, in a Hard Rock Hotel room with Leal.

TheDirty.com learned of the alleged infidelity from one of Leal's friend who wrote an e-mail to the Web site that read.

I'm sick to my stomach over what happened last Friday night, the e-mail stated. Like most people on earth I worshiped Ashton Kutcher and Demi Moore until Ashton Kutcher --- my friend Sara Leal.

The friend also stated that Kutcher told Leal that he had separated from Moore, but that the separation wasn't made public.

The Web site stated that Leal is willing to do spill on what went on if she is paid $250,000.

Another celebrity gossip site RadarOnline.com online reported that Leal is already planning to meet with an attorney.

She is freaking out, a friend of Leal told the Web site.

Star magazine has also reported that Kutcher and Moore's marriage is officially over because of his serial cheating.

It was definitely a long time coming, but they're finally done for good, a source exclusively told Star magazine.

On Sept. 12, Moore tweeted a photo of her naked followed by the message: remember.....you've got your own back.

Other suspicious behavior came on Sept. 23 when Moore posted a quote from Greek philosopher Epictetus.

When we are offended at any man's fault, turn to yourself & study your own failings. Then you will forget your anger.