Although Paris Hilton once reportedly said that Jessica Simpson is fat, and recent media reports claim that Jessica has gained 25 pounds, I don’t actually believe that Jessica Simpson is getting fat.

I think she looks disturbingly good and even if she has recently gained some weight, she looks very healthy.

But according to Star, Jessica Simpson chose to host — not perform — at the Pussycat Dolls’ second-anniversary bash at Pure nightclub in Las Vegas because she didn’t have to squeeze into a revealing outfit like the Dolls.

Supposedly, even in a corset top, fitted jacket and pants, 5′3″ Jessica couldn’t hide her fuller figure. “As an hourglass, Jessica tends to bulk up in her thighs, arms and tummy,” says body type expert Dr. Edward Jackowski.

Dolls founder Robin Antin tells Star that while Jess has long been atop her list of guest Pussycat Dolls, she “respected” her decision not to perform.

As for Jess herself, she claimed, “I could never be as sexy as these girls.” Huh? Let’s just hope she isn’t going to start losing weight on some crazy Hollywood fad diet. It’s one thing when you’re naturally skinny, but eating disorders are not sexy. [via]