Lindsay Lohan Snaps a Topless Photo in Dressing Room, Is Overshadowed by Completely Nude Portrait Behind Her

Turns out Instagram isn't policing all the nipples online...

Remember when Lindsay Lohan posed nude for Playboy in a Marilyn Monroe-inspired shoot? Well, in this selfie that the star of stage and screen snapped in her dressing room this week, there's a memento behind her, right...there.

While getting ready for a daytime performance of Speed-the-Plow, the play the actress is currently comebacking in on the London stage, Lohan casually shared a topless selfie that was instantly overshadowed by the completely nude portrait of herself hanging on the wall behind her.

The pinup glamour girl-styled shot of Lindsay, in which her hair is done up blond and bouncy à la Ms. Monroe, looks to be from her December 2011 Playboy cover shoot.

You can see the unblurred version on Lohan's page, which she captioned, "Another matinee. Another night. Another day. #speedtheplow...grateful for my job.life.supporters.friends&family."

While not onstage, Lindsay seems to be enjoying her time in London, hitting up hot stops such as Chiltern Fire House, and taking time out for do-gooding. Before tonight's show, she met with U.K. outreach organization CSV, which tweeted, "Thanks Lindsay-our volunteers are helping thousands of people across the UK. Thanks for your support."

"Doing work with good people does make a difference," Lohan added, posting a pic of herself outside the CSV office.

Then it was back to work, after which she shared yet another pic (this time wearing, or at least partially wearing) a sweater, writing, "thank you everyone for coming to #speedtheplow - I never take all of the amazing support for granted. #LoveLife."

Despite some line-forgetting issues when previews first started, the 28-year-old has garnered mixed but optimistic reviews for her role as an ingenue studio temp in the revival of David Mamet's 1988 showbiz satire.

The Guardian called her a "minor revelation" and, commenting on how happy she looked when she took a curtain call, concluded that "she'd bloody done it."

"Genuine if unstable star presence" was how the London Times described her je ne sais quoi, but the Evening Standard's critic wrote about Lohan, "Casting such a starry theatre novice in a piece that mocks the entertainment industry's obsession with big names can be construed as cynical or ironic. Either way, the results are a bit tame."

But at least there's a chance to do it all over again the next night. And sometimes in the afternoon.