Sexy Britney Spears feels exploited ! The singer is furious after seeing some cheeky snaps that show her wearing just a white woolly jumper and baring her bottom.

Britney has been allegedly duped by America's 'Esquire' magazine, which printed this revealing photo of hers without her knowledge.

To counter this, the pop princess has been telling pals that she was stitched up. Interestingly, her brother Brian was also present during the shoot, according to The Sun.

The 'BOYS' singer's dealings with Esquire have been tense ever since she posed for other magazines, while editor David Granger thought he had an exclusive deal with her.

And now, she's far from happy with snapper James White's new pictures where she is standing sideways in a skin-tight sweater and white stilettos with her backside bared.

"Britney thinks the pictures are too naked and is really angry at Esquire. But really, is she out of her mind? I mean, her brother was at the shoot," a source was quoted as saying by rate the music.com.

"Exploited? Is she crazy? Look at the photos she has done for everyone else. The ROLLING STONE cover was practically naked, too - but she wasn't exploited by them," the source added.

Well, indeed a strange attitude for a woman who poses semi-naked practically every day.