California, here we come?

More like, Mischa Barton sex tape partner... she's about to come!

Indeed, The Daily Mail reports that a Mischa Barton Sex Tape is actively being shopped around to, well, the kinds of companies that make a living by purchasing celebrity sex tapes.

According to the British tabloid, the racy video features Barton and an unidentified dark-haired man.

Notorious sex tape broker Kevin Blatt tells the newspaper that a third party has provided him with a copy of the tape and asked him to serve as a middle man for any sale.

Blatt says the footage is being shopped around "porn valley" at a price of $500,000.

That's not shabby, if it's any comfort to Barton.

"I know that at least three large online porn sites, YouPorn.com, Porn.com and RedTube.com, have reviewed it and they're all seriously considering the offer," Blatt says.

“I’ve seen stills from the video, it's clearly Mischa," he adds. "She's seen performing a sex act on a guy and can be seen having sex in various positions."

That last part isn't too surprising, really.

Barton doesn't weigh very much. It's easy to see how a partner could maneuver her body around pretty easily.

It is believed the video was shot at a private residence in Hollywood within the past year, although it's unclear what evidence exists to back up this claim.

Among other details of the alleged Mischa Barton sex tape:

• Barton wearing a grey hoodie and nothing else.
• She's having intercourse on a double bed.
• The man is wearing only a black t-shirt.
• There are coffee cups and an empty bottle of Gatorade on the nightstand.

Sounds... glamorous?

In an unusual development, meanwhile, Barton has actually admitted she comprises one half of the duo getting it on in this video.

Through her attorney, the actress isn't denying her role in the sex tape.

But she is adamantly against its public consumption.

“Ms. Barton does not consent to any disclosure of any such images," attorney Lisa Bloom says in a statement, delivered with authority:

"She believes that she was recorded without her consent by someone she was seeing at the time. There’s a name for this disgusting conduct."

"Revenge pornography."

“Revenge pornography is a form of sexual assault, and it is also a crime and a civil wrong in California. And we still not stand for it."

"I have a message for anyone who attempts to traffic in these photos or videos of Ms. Barton; we will find you, and we will come after you.

"We will fully prosecute you under every available criminal and civil law.”

Mischa and her legal team are not mincing words there, are they?

In January, Barton was hospitalized for a mental evaluation after police responded to calls about a disturbance at her West Hollywood apartment.

She was allegedly spotted by neighbors leaning over her backyard fence and rambling about her mother being a witch.

There were initial reports that claimed Barton was topless at the scene and making "incoherent statements" when approached by authorities.

After getting released, Barton issued a statement in which she blamed some kind of drugging for her behavior.

“On the evening of the 25th, I went out with a group of friends to celebrate my birthday.

"While having drinks, I realized that something was not right as my behavior was becoming erratic and continued to intensify over the next several hours,” Barton told People Magazine.

She added:

“I voluntarily went to get professional help, and I was informed by their staff that I had been given GHB. After an overnight stay, I am home and doing well.

"I would like to extend a big thanks of gratitude to the professionals at Cedars-Sinai for their great care and professionalism. This is a lesson to all young women out there, be aware of your surroundings."

Whatever happened on the night in question, this much is certain:

A sex tape scandal is pretty much the last thing Mischa Barton needs.