If you believed those pregnancy rumors that have been flying around about Paris Hilton her behavior the other night in Las Vegas should go a long way to dispel any belief that she might have a bun in the oven.

Paris was seen drinking pink Champagne at dinner on Friday night as she dined with her BFFs. She was also filming her new MTV reality show Paris Hilton’s My New BFF at TAO Las Vegas.

Accompanied by friends and surrounded by girls vying for her attention Hilton only had her boyfriend of four months, Benji Madden, on her mind. Madden for his part stayed in the background most of the night, as did Nicky Hilton and her boyfriend David Katzenberg as Paris soaked up the attention.

After dinner Paris and the girls went on to Tao where she was greeted with her song Stars are Blind. Hilton spent the next two hours smoking cigarettes and dancing with the final seven remaining contestants on the clubs catwalk while cameras rolled.

The group then went to the Mirage Villas for an afterparty where they were entertained by Paris’ friend Jeff Beacher.

Paris was seen drinking Gey Goose and Patron Silver Tequila at the after party.

Certainly all that drinking and smoking isn’t the behavior of a pregnant Paris? Or is it? Lets hope not!