LeAnn Rimes in Mexico Bikini Pictures

She's an avid Twitter user who can't resist sharing almost every detail of her new life with fiancé Eddie Cibrian.But LeAnn Rimes is decidedly silent on new rumours she has had a secret boob job.The 28-year-old singer raised eyebrows while showing off her figure in a variety of bikinis on holiday in Cabo San Lucas, Mexico last week.While she's thinner and more toned than ever, her bust line looked rather larger than usual.