Sofia Vergara hot Instagram photo showed one of tinseltown's most famous buttocks along with her beau, politician Nick Loeb, during a vacation in Mexico.

The lovebirds have recently become the subjects of rumors of a split-up but Vergara, 41, quickly shot down those nasty wagging tongues with a not-so-subtle hint: taking her 8-carat engagement ring for a walk a few days ago.

The rumors started when Vergara was snapped dining with friends last month without her expensive engagement ring. Then the two spent separate thanksgiving celebrations which only fueled the rumors some more.

This time, the sultry Colombian star of "Modern Family," was seen on a two-piece thong bikini showing her ample behind as she snuggled with the shirtless Loeb, 38, on a yacht. Her caption simply said: "Nothing like Mexico!!"

Mexico has a significant place in the relationship of the two lovebirds as Loeb reportedly proposed while on a vacation there.

While the two have announced their engagement after dating in 2010, Sofia Vergara said it doesn't mean they are going to walk the aisle soon.

As she told "Chealsea Lately" in an interview: "I was thinking the other day that Americans take engagements like, 'OK, we're engaged. It means let's plan weddings.' But for a couple of Latin Americans, you get engaged, but it's like another stage in your love life. It doesn't mean, 'OK, let's immediately call the flower place.' It's like another period," she told the host.

Sofia Vergara is the highest paid actor in TV today earning $30 million from the sitcom and her endorsements. She edged out Ashton Kutcher of "Two And A Half Men" who is ranked second.

She also has a chance to add to her fortunes as she is set to film "Heat" with action star Jason Statham and "Chef" with Robert Downey Jr., Dustin Hoffman and Scarlett Johansson.