Lindsay Lohan topless pictures posted on Twitter

Lindsay Lohan may not have Samantha Ronson in her life, but that hasn't stopped her from sharing semi-nude pictures of herself with someone special.

The starlet who's been attempting to revive her acting career took topless photos of herself, posted them to Twitter on Monday and tagged gossip blogger Perez Hilton and E! correspondent Ben Lyons in the caption.

"OLD PHOTOS," she tweeted. "I'm THAT bored."

The pics were taken with her Blackberry during downtime at a January photo shoot for Fornarina's summer clothing line.

It's the latest cry for help from Lohan, who's under investigation from thousands of dollars' worth of missing jewelry and has been rebuffed yet again by former girlfriend Ronson.

"Sam let Lindsay back into her life as a friend, but now even a friendship seems impossible," a source tells People. "No matter how many times she promises to change, Lindsay loses control and starts acting like a maniac."

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