Vanessa Minnillo is off the market after getting engaged to long-time boyfriend Nick Lachey, and he must feel like the luckiest man on earth, judging by her latest bikini photos.

The stunning TV personality showed off her curves in a series of barely-there swimsuits during a birthday break in Mexico with her fiancé and friends, and Breaking Celebrity News has the photos.

Looking tanned and toned, 30-year-old Minnillo – who jumps rope to keep fit – soaked up the sun during the luxury vacation all the while keeping her $125,000 diamond engagement ring firmly in place on her finger.

The couple – who share the same birthday – announced their news last week and released a statement about their upcoming nuptials.

"We're excited and incredibly happy about our engagement," they said.

PHOTO: Nice Rock! Vanessa Minnillo Shows Off Engagement Ring

"We look forward to a wonderful future together."

This will be the first wedding for Minnillo, while Lachey, 37, w