Bikini-Clad Vanessa Minnillo Cuddles New Fiance Nick Lachey

Credit: News Online

Nick Lachey and Vanessa Minnillo had three things to celebrate during their sexy weekend in Los Cabos, Mexico: their just-announced engagement plus both of their birthdays!

(This Tuesday Nov. 9, Lachey is 37 and Minnillo is 30.)

On Sunday, the bride-to-be flaunted her flawless beach body in a hot-pink bikini, cuddling with her man poolside.

The True Beauty star flashed her new engagement ring when they arrived in Mexico on Thursday. The bling is a platinum, Asscher cut diamond with trapezoids on the side from designer Bader & Garrin, with an estimated price tag of $125,000.

"We're excited and incredibly happy about our engagement and we look forward to a wonderful future together," the future spouses couple told Us in a Thursday statement.

It's the first marriage for Minnillo, and the second for singer Lachey, who divorced Jessica Simpson in 2006.

Where was Simpson over the weekend? She and Eric Johnson, her beau of several months, were spotted out and about in Washington, D.C.