Britney's curves were noticeably

Feeling deflated? Britney Spears slips her fast-disappearing cleavage into a frilly bikini

After transforming her figure this year through a healthier lifestyle and a gruelling tour, it was only a matter of time before Britney Spears' chest slimmed down too.

As the singer has continued to lose weight throughout the year, its no surprise her cleavage is looking rather deflated.Currently holidaying in Mexico with her manager boyfriend Jason Trawick, Britney's curves were noticeably less ample as she showed off her figure in a black bikini.

Britney, 27, famously cut a heavier figure following the birth of her two sons and during her well-publicsed health troubles last year.But after getting re-focused on her career and overhauling her previously unhealthy lifestyle, Britney has been steadily slimming down and toning up as this year has progressed.
Britney is currently holidaying in the southern Mexican resort of Zihuatanejo, which overlooks the Pacific Ocean.Her vacation with Jason, 37, follows rumours they had split over the summer, amid concerns they were getting too serious too quickly.

While her father Jamie Spears and nanny were taking care of her sons, Britney and Jason were spotted enjoying a romantic stroll on the beach.Later, the pop star was spotted playing with sons Sean Preston, four, and Jayden James, three, in her hotel's jacuzzi.
Britney and Jason's show of togetherness silences recent rumours they had split in August after six months of dating.Contrasting reports said Britney wanted the couple to move in together and was getting cold feet over the serious nature of the relationship.

A friend said: 'Britney missed Jason so much while they were apart. They barely spoke. Now he's planning to join her on her Australian tour next month.'But after two brief marriages behind her, you couldn't blame Britney for being commitment-shy.