01/04/2011 02:30 pm ET Updated May 25, 2011

LeAnn Rimes Breast Implants? Actress Gets Boob Job, Reports Us Weekly

LeAnn Rimes has a new fiancee. Does she have new breasts, too?

Us Weekly is reporting that Rimes recently underwent breast enhancement surgery, showing off her new boob job in a bikini during her Mexican beach vacation.

"She recently got a boob job," a source told the magazine. "She's always, always been insecure about her size. She was a small A-cup. She often talked about wanting to get implants. She'd say, "I just want a little bit so they're proportionate to my body.'"

In a cover story this fall with Shape Magazine, Rimes talked about her growing and maturing body, though did not mention any artificial help.

"I feel like my body is changing and that I'm growing up into a woman. I probably weigh about 6 pounds more than when I shot that cover, but my body fat is the lowest it's ever been. I've gained a lot of muscle, and I feel like I have more curves too. My butt--well, I've always had a butt--but now I definitely have a butt, which I love. I've taken up weight training three or four times a week, and I do a lot of squats. I've also been doing more cardio, even though I absolutely despise it. I try to get in a good 20 to 25 minutes before I do anything else; if I don't do it first, it won't happen.

For more, click over to US Weekly.