Sharon Stone isn't afraid from showing off her au naturel self, whether it's an outing sans makeup or... a totally exhibitionist shirt that shows off her braless chest.

The 54-year-old actress hit the amfAR Inspiration Night gala in Paris last night, dressing down for the red carpet in a long-sleeve black sweater and skinny black pants. But the outfit wasn't as staid as we first thought: when the flashbulbs shined down on the red carpet, Stone's half-sheer top revealed everything.

Which, honestly, we don't understand. The top half of the shirt is opaque, ostensibly to cover the chest area. So did Sharon think she was all SFW? Or was she aware of her purposeful double-nip slip and simply flaunting her stuff for the cameras?

We assume the latter: how could it be a wardrobe malfunction with Sharon all smiles? Plus this is not the first time the "Basic Instinct" star has dared to go sheer. In 2009, Stone wore a sheer lace dress sans bra and she took a undergarment-free stroll with her boyfriend just a few weeks ago.

We get it, Sharon. You're still rocking a hot body, have a 27-year-old model boyfriend and look amazing. Now go put on a bra.

PHOTOS:

sharon stone nip slip

sharon stone nip slip

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