Stars In Heat

Facebook founder Mark Zuckerberg is white hot -- exposing his burly man chest while vacationing in Maui.

Zuck wasn't shy about sharing his topless physique while taking his wife Priscilla Chan out for a private surf lesson.

See, there is something $14 billion can't buy.

Former "Hills" star Audrina Patridge is selling her bikini-clad body (again) -- stripping down for a smoking hot 2013 swimsuit calendar -- and TMZ has every month's picture.

Trust us, it's awesome. In fact, it has everything you could ever hope for ...

Audrina's boobs ... check.
Audrina's boobs oiled up ... check.
Audrina's boobs by a pool ... check.
Audrina's boobs on a chair ... check.
Audrina squeezing a dog in her boobs ... check.

But soft! What light through yonder window breaks? It's Jennifer Aniston, who continued her ridiculously hot Mexico vacation yesterday ... looking pensive in a sexy bikini and an exotic red sarong (the thing wrapped around her waist).

As we reported, Jennifer and her tatted-up fiance Justin Theroux have been kicking it in Cabo San Lucas over Christmas, and things just keep heating up.

Still unclear if Jennifer's pregnant -- but if you're wondering what it's like to get held up in Mexico ... just ask her boobs.

Joanna Krupa's hysterical attempt to stand-up paddleboard in Miami proves even though she's well-equipped to float ... she's far from seaworthy. Still hot as sin, though.

Jessica Simpson's new baby has hit the milk-dispensing JACKPOT -- and lucky for us, the singer's already giving out a sneak preview of the goods.

Jessica -- who's currently on vacation in Hawaii with her fiance and baby #1 -- just posted the ample photo on Twitter ... with the caption "Fun in the sun." And we have to agree.

Russell Simmons could teach Halle Berry a thing or two about breaking up. He's on such good terms with ex-wife Kimora Lee, he kicked it with her AND new GF Hana Nitsche Wednesday on the beach in St. Barths.

Simmons and Kimora Lee divorced in 2009 ... but they stayed unusually and refreshingly close post-split ... sometimes vacationing together with their respective SOs.

There's no question Russell can pull some impressive ass -- but we gotta ask ...

Jessica Simpson is hiding something -- because the newly pregnant singer just hit the beach in Hawaii ... wearing an enormous green cover-up thing.

Just one day after announcing her new bun in the oven, Jessica went out for a waterfront stroll today with her fiance Eric Johnson ... and her rapidly-forming fetus.

This will be Jessica's second child after she gave birth to her daughter Maxwell in May.

Who knew? Justin Theroux is tatted neck to toe.

The pics were snapped in Cabo San Lucas, Mexico over the weekend. Jennifer Aniston, who at 43 still looks mighty fine, and Justin were catching some rays when he stood up and revealed a back tat that looks kinda ... Asian-y.

Jennifer makes a yearly pilgrimage to Cabo around XMAS time and usually George Clooney follows suit -- this time with lucky Stacy Keibler. And Rande Gerber and Cindy Crawford always make the trek as well.

FYI --There are reports circulating that Jennifer is pregnant. If she's really pregnant, Jessica Simpson has been doing it seriously wrong.

Stephanie Seymour's butt is unavailable at the moment -- as it's currently on vacation in St. Barts.

If you would like to leave a message for the butt, please do so at the beep.

Here's a photo of Rihanna in Barbados ... in a bathing suit ... where she'll be spending her Christmas holiday relaxin' like a she-pimp in 81 degree weather.

FYI -- it's 36 degrees in NYC right now ... 53 and raining in L.A. ... 14 degrees in Minneapolis ... 37 in Dallas ... 52 in Atlanta ... 32 in Boise ... etc, etc, etc.

Supermodel Kate Moss almost took a ball to the head while hanging out on the beach in St. Barts on Wednesday.

While trying to soak up the sun with husband Jamie Hince, the bikini-clad 38-year-old got photobombed by a completely naked dude checking his phone behind her.

Team USA women's soccer phenom Alex Morgan showed off her rock hard gold medal winning bikini body in Hawaii on Wednesday.

The smokin' hot 23-year-old Olympian scores again.

Kate Upton and Lindsay Lohan have something in common ... because Kate's assets were FROZEN recently -- when the curvaceous 20-year-old model stripped down to her skivvies for an Antarctica photo shoot ... where the temperature hit 35 BELOW!!!

We're told Upton and a camera crew boarded a private 10-day cruise from Argentina to Antarctica for a super-secret Sports Illustrated cover shoot. The cruise departed November 29th and returned December 9th.

The photos were shot both on the cruise -- with massive icebergs as a backdrop -- as well as on the penguin-filled islands off the coast of the frozen continent.

But don't worry -- we're told Upton only stripped to a bikini for a few minutes at a time ... and was otherwise wrapped in a pimpalicious fur coat.

As for the giant Oreo man -- 2012 marks the 100th year since the inception of the tastiest cookie in the universe ... and for some reason, this guy felt like celebrating.

Got a little sand on your perfectly-toned butt? No problem. Just ring that little bell and your loyal butt-washing attendant will be right over ... carrying a gleaming silver pail filled with Fiji water just to de-sand your perky cheeks.

Just one requirement: you must be Victoria's Secret Angel Candice Swanepoel ... who proudly showed off the ridiculous ass-splashing service she got during a recent photo shoot in St. Barths.

FYI -- we were joking about the Fiji part ... but La Toya wasn't.

"Shahs of Sunset" participant Mercedes Javid has got it -- and ain't afraid to flaunt it ... which is cool since we know she has at least one huge fan, right in our own office. We love ya, MJ!

"Shahs of Sunset" buxom party girl Mercedes "MJ" Javid poured her voluptuous curves into a terrified purple animal print bikini and soaked her smooth womanly flesh under the sun in Santa Barbara this weekend.