Vacations

Emily Ratajkowski left little to the imagination while lying out on the beach in Mexico.

Baking her buns, Emily looked like she might've opted for nude beach attire ... it's just a really tiny thong.

She's staying cool with cervezas, but that ass is in danger of a burn.

Donald Trump Jr.'s son, Tristan, was taken to a hospital Sunday after breaking his leg in Aspen ... TMZ has learned.

We're told Secret Service accompanied the 5-year-old to the ER after he fractured his leg on the ski slopes.

Tristan was skiing with his family and Ivanka's family in Aspen over the weekend.

Justin Bieber was so totally unimpressed by something called "the world's most exciting jet boat ride" -- and it was written all over his face.

The Biebs had Monday off from his tour and hopped on a Shotover Jet in Queenstown, New Zealand. The high-speed boat hits 50 mph while careening and doing 360 turns. If that sounds like it'd be tons of fun ... it probably is, unless you're Justin.

Occupational hazard for a guy who drives exotic sports cars, we guess.

JB rented out the entire boat for himself and his 2 pals, so at least he was bored in private.

President Obama followed an inspirational and historical calling -- Go West, young man!!! -- by fleeing the blizzard for sunny Hawaii.

The former prez was puttin' around in Oahu ... his home turf.

Obama cares, but he also knows how to chill.

Danny Amendola's having a phenomenal offseason ... chillin' in the Bahamas with his beauty queen girlfriend and a bunch of other hot people ... including Jesse Metcalfe.

The New England Patriots WR has been dating Olivia Culpo, the 2012 Miss USA champ for about a year ... and what better way to celebrate than a tropical vacation?

Other attractive people on the trip include Jesse's actress fiancee, Cara Santana, models Devon Windsor and Nicole Harrison, DJ Rascal and more.

Chillin' with models ... the Patriot way.

AWESOME video here of Will Smith finally scratching something off his bucket list -- bungee jumping Victoria Falls!!!

The action star fulfilled a lifelong dream to leap from the bridge at Victoria Falls -- considered one of the Seven Natural Wonders of the World -- on the border of Zambia and Zimbabwe ... and, naturally, the whole thing was recorded.

It's a GREAT offseason for NY Giants wide receiver Sterling Shepard -- who's on a crazy trip to Africa with his model GF, Chanel Iman ... and the pictures are fire.

The Sphinx ... Morocco ... Zambia ... Tanzania ... the couple is hittin' all the dope spots.

They even had a run-in with Will Smith!!

It's good to be rich.

Here's Alex Smith finally proving he has something Petyon Manning, Tom Brady, and Ben Roethlisberger don't ... muscles ... showing off his All-Pro physique on vacation.

While rumors swirl over Tony Romo taking his job, Alex is down in Hawaii canoeing, and from the look of these pictures, probably not eating much bread.

Prince Harry gave Jamaica a taste of his royal physique ... which included his abs.

Harry and his GF Meghan Markle were attending a friend's wedding on the island nation Saturday, and he made sure to show off his toned bod at the beach before jetting off.

Malia Obama is on an Aspen vacay that will absolutely make you HATE your life when you see who she's posing with in what has to be the richie richiest photo of all time.

Here's the answer key for who's who in this shot, taken last weekend at Cloud Nine Alpine Bistro in Aspen:

1. Malia
2. Elizabeth Tisch, daughter of NY Giants co-owner Steve Tisch
3. Audrey Kotick, daughter of Activision/Blizzard CEO Robert Kotick (think Call of Duty money)
4. Fashion designer Monique Lhuillier
5. Jamie Tisch, ex-wife of Steve
6. Tom Bugbee, Monique Lhuillier's husband
7. Holden Tisch, daughter of Steve
8. Zachary Tisch, son of Steve
9. Tassilo von Furstenberg, grandson of Diane von Furstenberg

David Beckham's athletic genes weren't enough to protect his oldest son from a snowboarding injury.

Brooklyn Beckham was sporting a sling on his arm Thursday as he walked around Whistler Village in Canada. The 17-year-old model is there on vacay with David, Victoria and his siblings.

No one wants Jada Pinkett Smith to change her spots ... not if she's rocking this leopard print bikini.

The 45-year-old actress was basking in the sun in Hawaii after a workout sesh in the sand with her trainer ... who's also pretty easy on the eyes.

Question -- if your wife was pregnant with twins and due next month, would you still go on a couples trip to Mexico without her?

Matthew Stafford just did and his wife couldn't be more supportive.

The Detroit Lions QB is currently in Cabo with Matt Ryan and his wife, Sarah Ryan. The two families are super tight and usually take couples trips together.

Matt's wife, Kelly, didn't make the vacation (we're guessing an international trip so far into the pregnancy isn't the best idea in the world) ... so Matt made the trip without her.

Sarah posted a photo of the gang at dinner. Kelly commented, saying, "Loving everything about this picture except for the fact that I'm not in it and stuck in Michigan."

She added, "Missing all these beautiful people! #jealous."

Unless you're Jessica Alba sporting a bikini in Mexico.

Selena Weber and Lauren Ashley brought several swimsuit options for their Miami trip ... and they keep revealing more about themselves with every outfit change.

The models have been hitting the beach for a few days now, and they hit everyone with a double shot of their backsides Tuesday ... especially Selena.

Barack Obama is solidifying his "coolest president ever" title ... because he now knows how to kitesurf, thanks to Sir Richard Branson.

Before the Obamas jetted out of Necker Island last week ... Barry made sure to get his feet wet with the extreme water sport. Meanwhile, Richard did some foilboarding.

Then they went mano-a-mano! And you gotta see how it ended.