Answer: Two Super Bowl rings.

Big Ben Roethlisberger hit the club scene at Tao in Vegas this weekend with a couple of his fellow Pittsburgh Steelers to celebrate his 27th birthday -- and the chicks loved 'em.
We're told Ben was drinkin' mostly bottled water that night ... with the exception of a celebratory glass of the bubbly. And why not?! Dude won the frickin' Super Bowl.









