Demi Moore shares topless photo on Twitter

Demi Moore just can't resist taking photos of herself (especially in the bathroom mirror) and sharing them with us. Here she is topless, in a Twitter photo posted Thursday that's still causing buzz.

Her thought accompanying the photo was: "Remember ... you've got your own back."

Later, when someone asked what she meant exactly, Moore replied:

"To remember to be your own best friend to find light & protection from within yourself!"

So far, she's shows us photos of herself in a bikini - that was in 2010 - and in panties in a photo taken by hubby Ashton Kutcher in 2009. What's next?