This is BREAKING news, folks: A Facebook employee who's been bro-ing it up with CEO Mark Zuckerberg this summer "accidentally" posted a photo to his Facebook page that included a topless Zuck. It's the first time the world has seen Zuck's nips and chest hair, since he generally likes to keep his gray t-shirt on during public events.

Anyway, TMZ posted the offending photo — which was posted by Facebook Director of Engineering Andrew Bosworth (who appears at the far right) — and the guy they call "Boz" says it was "immediately" deleted when he realized the implications of this nip slip. But for god's sake people, it's summer, Zuck likes to party, and he's got nothing to be ashamed of.