Stacy Keibler and George Clooney at the Argo Premiere this month.

Are Stacy Keibler and George Clooney still together?

The tall fit beauty celebrated a birthday recently (she turned 33 on October 14), but did it without steady beau George Clooney.

Are there problems?

Reports say George only missed Stacy's NY birthday party due to prior commitments.

The model and several friends partied the night away at New York club Provocateur, where she arrived at 11.30pm to take over a private booth decorated in balloons.

An onlooker told the New York Post newspaper: ''Stacey looked happy, trim and fit, wearing tight turquoise pants and a blazer. She celebrated with 12 friends, 9 of which were guys, and was drinking vodka and champagne.''

Hollywood hunk George - who has been dating Stacy since July 2011 - was notable by his absence, but 'The Descendants' actor was reportedly travelling for filming commitments.

Former WWE star Stacy and the 51-year-old actor were last seen together on the red carpet at the Obama fundraiser at the Nokia Theater in Los Angeles at the beginning of October.

Glamorous Stacy has previously revealed George - who has dated a host of famous beauties including, Elisabetta Canalis and Renee Zellweger - likes her to look natural and she doesn't feel the need to dress up for him.

She gushed: ''George is always happy with everything that I wear. He doesn't care whether I'm dressed up or down.''

© Bang Showbiz