Credit: Cheryl Gerber/Getty Images; REUTERS/Jessica Rinaldi/Landov

A source close to Sarah Palin slams reports that the former Vice Presidential candidate had a boob job.

"It's absolutely ridiculous," the insider tells of the rumor, which hit the web earlier this week, after Palin appeared considerably curvier at Sunday's Belmont Stakes horse race in Elmont, New York.

Still, it's not the first time Alaska's former governor has flaunted her cleavage. In a candid photo from her days as an undergrad at the University of Idaho, a younger Palin, now 46, showed off a pink T-shirt that read "I may be broke but, I'm not flat busted."

Reps for Palin and her Political Action Committee could not be reached for comment despite repeated attempts by