This is the last thing she needs!

A sex tape starring Mischa Barton is being shopped around to porn companies, the Daily Mail reports. The video, which shows the actress getting down and dirty with a dark haired man, has a starting asking price of a half million dollars!

"The tape is being shopped around porn valley, the asking price is $500,000. 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. I've seen stills from the video, it's clearly Mischa in my opinion," Hollywood sex tape broker Kevin Blatt told the outlet.

"She's seen performing a sex act on a guy and can be seen having sex in various positions," he added. The OC star is apparently wearing nothing but a grey hoodie!

This bad news comes on the heels of her mental breakdown and subsequent hospitalization, and friends fear she can't take much more.

"This is the last thing Mischa needs. Her name has been dragged through the mud enough times, she doesn't need a sex scandal right now," a source explained.

Poor girl!