Stars In Heat

While Adriana Lima posed for a photo shoot on the beach in St. Barts, someone was actually given the very, very enviable task of making sure the super model's ample boobs were in just the right spot -- which is odd ... since there is no wrong spot for them.

Being Adriana's breast friend in the world ... where do we sign up?

While her ex-boyfriend Kasey Kahl deals with the aftermath of his drunk-and-disorderly arrest -- Vienna Girardi hung out in a bikini with her other ex-boyfriend Jake Pavelka Lee Smith in Miami on Tuesday.

In case you forgot -- Vienna stormed off "Relationship Rehab" last month, where she was hammering out issues with Kahl. Vienna was pissed because producers blindsided her with a surprise sit-down with Lee, an ex at the time.

But now, sources close to the couple tell us Vienna and Lee have since been talking and working on their relationship.

Fun fact: Lee was also the guy that allegedly sent Vienna flirty emails back when she was engaged to "Bachelor" Jake Pavelka.

Rihanna was hanging by a few small threads in Hawaii yesterday -- testing the structural integrity of a tiny black thong bikini, while sunning her 23-year-old buns in the ocean ... on a paddleboard.

Whatever floats her butt.

​Muscle god Chris Hemsworth celebrated the news that his gorgeous wife Elsa Pataky is pregnant with their first child just like anybody else would ... by diving down an inflatable slide off a helicopter-carrying luxury yacht with Matt Damon in St. Barts on Wednesday.

This is how Thor and Jason Bourne unwind.

The awards aren't until Sunday, but Playboy's Miss August 2010 Francesca Frigo showed off her gorgeous golden globes in a hot pink string bikini in Miami on Tuesday.

Fresh from vacationing with George Clooney, Stacy Keibler and Cindy Crawford in Mexico, Alex Rodriguez and his new girlfriend/wrestling diva Torrie Wilson continued soaking up the sun and showing off their lean, ripped physiques at his house in Miami this weekend.

Gym. Tan. Lovers.

And if that wasn't convincing enough -- here's a pic of the new couple getting nibbly in A-Rod's pool.

Eddie Cibrian enjoyed a bootyful weekend in Hawaii watching his wife LeAnn Rimes play bocce ball in an itty bitty thong bikini.

For singer Craig David, R&B stands for ripped and buff.

The ridiculously yoked 30-year-old showed off his flawless body during a shirtless run in Miami this weekend.

Even if you don't know any of his music, there's no denying he has an amazing body of work.

Rachel Uchitel showed off the unborn baby female fetus growing inside her by rockin' a sexy two-piece bikini in Cancun the other day.

The 36-year-old former Tiger Woods mistress bronzed her five months pregnant bones while vacationing with her husband Matt Hahn.

Dear Aida Yespica,

You lose.

Love,

Fashionista Olivia Palermo became famous on "The City," but it was the hills of the buck ass naked woman behind her that got all the attention in this pic taken on a nude beach in St. Barts Thursday.

Looking like Marky Mark wannabes, 17-year-old Justin Bieber and his dad 37-year-old Jeremy showed off their smooth shirtless chests on the beach in L.A. on Wednesday.

There's nothing like quality topless family bonding.

Wearing a glorious pink and blue reinforced striped bikini, gorgeous "Good Day L.A." co-host Lauren Sanchez nearly spilled out onto the sun in Cabo this weekend.

While no wardrobe malfunction occurred, the 42-year-old mother of three and former "So You Think You Can Dance" host is sure to have the breast year ever.

"Real Housewives of New Jersey" stars Joe and Melissa Gorga left all their Garden State family drama at home and showed off their his and hers matching lean, buff and bronzed bods in Miami this weekend.

It's obvious their marriage is very fit.

Enrique Iglesias flashed his yoked and hairless chest while on a yacht in St. Barts the other day.

With a wet suit stripped to his waist, the 36-year-old gives ripped tide new meaning. Baby, I like it.

More than four months after giving birth, Jessica Alba showed off her flat stomach and gorgeous mom curves in a hot pink bikini in Cabo this weekend.