Aniston 'keeps fit to impress Mayer'

Jennifer Aniston has reportedly been attending yoga classes to impress John Mayer.

According to OK!, the actress has been enjoying extra sessions at her home with mentor and friend Mandy Ingber.

The Friends star has also been altering her wardrobe so that Mayer doesn't get bored of her look.

"Before she hooked up with John Meyer, Jen was blah in beige," said a source. "Now she's the sex lady in red. Wow!"

Aniston was spotted purchasing a made-to-order cocktail dress in West Hollywood's Noodle Stories earlier this week.

"Jen was in a great mood and seemed to really enjoy catching up with the owner, Caryl Kim," said a witness.