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After a busy few weeks hitting up Emmy afterparties, BlackBerry bashes and Vegas hot spots, Lindsay Lohan and Samantha Ronson decided they deserved a break.

The duo took a Mexican vacay, where they showed off their skimpy swimsuits while sunning themselves under a cabana. Check out SamRo in her tiny pink bikini!

It sure sounds like L.L. could use a breather. According to an eyewitness, she was in an awful mood at the BlackBerry party Sam deejayed last week, even flipping off partygoers (which her rep claims isn't true). She's also been publicly feuding with estranged dad Michael.

Here's hoping the R&R does the girl good.

Are Cheryl Burke and Maksim Chmerkovskiy swapping partners?

Although the two aren't paired together on Dancing With the Stars, they spent some quality time together off the dance floor last night.

Cheryl and Maks were celebrating Christina Milian's birthday at One Sunset in Hollywood. When they left the club, the duo held hands and looked cuddly as they searched for their car. Let the romance rumors begin!

Although they must not be that into each other—they were both yakking on their cell phones the whole time. Or is that just status quo for semifamous couples in Tinseltown?

Josephine Santos, PacificCoastNews.com

While Lauren Conrad claims she's not dating My Boys actor Kyle Howard, her actions on Saturday night tell another story.

The Hills starlet hit Teddy's with Kyle in tow, where they proceeded to engage in some serious PDA. Eat your heart out, Brody Jenner!

"They were making out and just totally being a couple," says a source, regarding the duo. "They were kissing all night."

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This is gonna do nothing for those diva reports.

Jennifer Lopez and Marc Anthony rolled up to Dolce & Gabbana's Golden Age party in Milan last night in a golden carriage pulled by four white horses.

To be fair, Claudia Schiffer and Dita Von Teese also arrived via the same pimped-out fairy-princess ride. But we'd like to think this was the way Jenny "no expenses spared" Lopez was always meant to roll.

See who else was spotted out last night—closer to home and minus the crazy convoy—in our Party Pics gallery.

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Hayden Panettiere partied with a purpose last night. The Heroes starlet hosted Declare Yourself's Domino Effect bash at the Green Door.

While Declare Yourself is a nonpartisan campaign encouraging young people to vote, sounds like Hayden's on Team Obama.

"I'm a Democrat, so..." she answered when asked which candidate is getting her vote.

Danity Kane performed at the party, and Aubrey O'Day even dyed her poor puppy, Ginger, for the occasion. Her little white dog was sporting red and blue fur...oy.

"I'm voting for Hillary!" she joked, before adding she was really backing Obama. So what does the self-proclaimed porn lover think about gay marriage?

"I'm for anything gay," she said. "I adore gay men, gay women, gay everything. I think I was gay in a past life."

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Miley Cyrus and her underwear dude (aka Justin Gaston, not pictured) have enjoyed a series of wholesome outings, including the mall, Universal CityWalk—with mom Tish in tow—and even church.

But last night, the two shared a slightly more risqué evening together when they saw the Pussycat Dolls perform at Hollywood and Highland.

It's not too surprising that Miles is a fan of the scantily clad, gyrating girl group. The 15-year-old Disney darling has confessed to more mature tastes, including an appreciation for Sex and the City.

Either way, we bet her 20-year-old boyfriend wasn't complaining about having to watch five nearly naked girls shake it onstage.

Ahhh, young love...

What happens in Vegas...ends up on the Internet (if you're an Olsen).

In case you can't tell your twins apart, that's Ashley getting cozy on the dance floor last night with National Treasure's Justin Bartha.

Before hitting Jet nightclub at the Mirage, they had a romantic dinner at Stack. The duo shared yellowtail sashimi, spicy wings and black cod miso lettuce cups.

Once inside Jet, Ash and Justin hung in the VIP section until 2 a.m. with seven other friends. Ashley's pick of poison? Grey Goose vodka, Red Bull and Patrón.

Ironically, Justin's in Las Vegas filming a movie called The Hangover. Wonder if life imitated art for this couple the morning after?

Krista Kennell/ZUMA Press

When Joe Francis stopped by the Hollywood Party Girl show yesterday, he went wild when asked about Lindsay Lohan, claiming that her constant companion Samantha Ronson is so jealous of any of L.L.'s male friends that she almost punched him.

"Lindsay's straight," he offered. "I think Sam has taken ownership of Lindsay. I think if Sam were to let Lindsay go even that much; Lindsay would revert back to being straight.”

Ronson’s rep declined to comment saying, “We don’t comment on stuff like that,” while LiLo's rep has yet to respond. 

Francis was reported to have dated Linds in her prerehab days and she even vacationed at his Casa Aramara mansion in Mexico.  

As for the rumor that he swapped spit with Danity Kane's Aubrey O'Day at a VMA afterparty last weekend...

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So much for Sunday being a day of rest.

Hours after finishing her first triathlon in Malibu, Jennifer Lopez jet-setted to NYC to fete hubby Marc Anthony's 40th birthday.

After jogging, biking and swimming for hours sans makeup, J.Lo got glam for the posh party, held at the Bowery Hotel.

Guests included Leah Remini, Brooke Shields, Dita Von Teese and Kimora Lee Simmons.

One no-show? Heidi Klum. The Project Runway host was reportedly angry that J.Lo pulled out of judging the season finale at the last minute.

Kim and Khloe Kardashian had dinner together last night at celeb fave Mr. Chow—and of course, the paparazzi were there keeping up with the girls.

While Kim played coy when asked if she did anything special for her football BF Reggie Bush for scoring a touchdown Sunday, she did weigh in on the reports that her reality show started a fight in Florida.

A woman reportedly hit her boyfriend in the nose with a vase when he was watching his favorite show, Keeping Up With the Kardashians, claiming he was being disrespectful.

The K-lovin' family is currently filming a third season of their hit E! reality show, so let's hope the man has TiVo by the time it airs.