Sizing Up Jennifer Aniston and Brooklyn Decker

May 7, 2010— -- Jennifer Aniston has a body that women half her age would kill for.

But reports surfaced earlier this week that the 41-year-old former "Friends" star flew her personal trainer, Mandy Ingber, to the Hawaiian set of her new movie after seeing her on-screen rival, Sports Illustrated swimsuit model Brooklyn Decker, who, at 23, is little more than half Aniston's age.

Aniston's spokesman, Stephen Huvane, dismissed the reports.

"Jennifer has a trainer she works with all year round and has not specifically flown her in to Hawaii after seeing Brooklyn Decker," he told ABCNews.com. "That's just plain silly."

Other reports claim Aniston dropped seven pounds in seven days on a baby food diet she started on the set of "Just Go With It," a film about a love triangle between her, Decker and Adam Sandler. The film also stars Nicole Kidman.