Celebrity Butts

You don't have to take your clothes off to have a good time ... but it helps.

Just ask former "Basketball Wives LA" star Brittish Williams who just got bare ass naked ... as she makes her grand reentrance to the dating world after breaking up with her fiance earlier this summer.

Williams' rep tells us she posed for BE Entertained Magazine to "show she's single, free at last and ready to live."

Translation -- Brittish likes guys. Guys like naked women. So, there.

Demi Lovato just did better than a 'no make-up' photo shoot ... she went no clothes.

Lovato was doing a pictorial with Vanity Fair when she decided to strip down for a truly natural shoot.

Lovato has been very open about her bouts with eating disorders and body issues ... and is hoping she can send a message for "loving the skin you're in."

She's setting a great example.

The Carl's Jr. Tex Mex commercial featuring hot babes in a standoff in a volleyball game on the Texas-Mexico border is NOT RACIST ... so says one of the models in the commercial.

Our photog spotted Kara Del Toro, who reps Team Mexico in the ad, and she sorta says you can look at anything and come up with a Grassy Knoll theory, but really the commercial is about burgers and babes.

Kara also dispels any myths about models not eating the burgers they hawk ... or does she?

Khloe Kardashian is gonna mess around and get someone at Adidas a GIANT well-deserved bonus check -- based purely on her ass.

Madonna found her sweet spot Wednesday at Madison Square Garden ... Amy Schumer's ass.

The singer called a more-than-willing Amy up onstage for "Unapologetic Bitch," and hilarious ass-slapping and humping ensued.

Sisters Gigi and Bella Hadid let their buns hang out as they walked the runway Monday for Tommy Hilfiger during New York Fashion Week.

Forget bikinis, these two should be the spokeswomen for genes.

There is money in Serena Williams' butt ... or in having one that looks exactly like it ... 'cause an L.A. model says that since Serena shouted her out as her official butt-a-like ... her phone has NOT stopped ringing.

The model's name is Olivia Griffian, and she tells TMZ Sports her life was changed after Serena posted a picture of the two standing back to back at a recent shoot with a caption that read, "Found my Doppelgänger which one is me?"

Olivia says after the post, her Instagram followers nearly doubled and she was inundated with calls from agents and managers wanting to rep her ... all because of her striking resemblance to Drake's boo.

It's no accident that she was body doubling for Williams ... she claims the two are friends and talk everyday ... but she never thought looking like her pal would be worth so much fame.

Check out the clip, and the gallery below ... she might actually give Serena a run for her money.

Yanet Garcia -- now known as the sexiest meteorologist on the planet -- is breaking down borders between Mexico and the U.S. ... thanks to her greatest asset.

In a move even Donald Trump would applaud ... Yanet has come stateside, and our photog got her in Central Park. Yes, her English is still a little rusty, but we're guessing no one will really care.

Besides, her YouTube star BF (buzzkill) Doug Censor Martin played translator as we found out if Yanet is considering a permanent move North ... and what that means for her booty's Q rating.

She's kinda of amazing in this clip -- and not at all concerned about potential ass competition she'd face from the likes of Nicki Minaj or Kim Kardashian.

O.T. Genasis got caught in a blizzard on Hollywood Boulevard -- a parade of white chicks who followed him out of a club and showed NO SHAME ... partying with him on the street.

The wild after-party went down outside The Argyle around 3 AM, and here's all you need to know -- O.T., 5 super fans (probably super drunk), short skirts, lots of twerking, an inflatable dinosaur and an amazing soundtrack courtesy of a sax player. Think sidewalk slow jams.

O.T.G.'s description of one of the girls says it all, "Her name must be Simba, 'cause she got jungle fever!"

Miley Cyrus might not BREAK the Internet, but her nearly bare nipples and crotch in Paper Magazine should make a nice dent.

Yes, the people who brought you Kim Kardashian's full frontal shots are back -- but this time Paper put just a little peach between your eyes and Miley's bits.

Miley's the cover story, and inside her nips are covered with peach paint. Her lady parts got a shade of pink ... paint. As for why Miles did the spread -- look under her left boob for the "Just Because" tattoo.

Celeb photog Paola Kudacki did the honors, and the creative director was Diane Martel ... who also did the wild visuals for Miley's Bangerz Tour.

Interestingly, Miley shares her cover with a pig. Kim's ass hogged the camera.

Khloe Kardashain was a real trap queen ... and at least one guy was more than happy to fall into the trap when she put her best assets backward in Las Vegas.

The most recent KK sis to go platinum was at 1 OAK nightclub when a guy -- who seems to be a friend with major benefits -- danced up and invited Khloe to get closer.

Let's just say Khloe, and her ass, are loving the single life.

Jen Selter's famous ass is going international -- the Instagram phenom just landed her first magazine cover, but TMZ Sports got a few behind the scenes shots.

Jen's butt got tapped for the new issue Forever Sports ... a British-based sports lifestyle mag, which wisely saw the value in a cover girl with Selter's stats -- as in her 6 million IG followers.

The photo shoot went down in Miami, and naturally features several mesmerizing photos of Jen's eyes. Kidding ... it's all about dat ass.

Check em' out.

Karlie Redd proves there are enough slices of her cake to go around on the June 2015 cover of J’Adore Magazine.

TMZ has obtained the exclusive photos ... and the "Love & Hip-Hop: Atlanta” rum slinger practically goes full frontal for the racy spread. We're told Karlie was “very turned on” by the photo shoot.

Gotta keep that oven hot when baking the perfect cake.

The woman whose butt was on the receiving end of an Instagram "Like" from LeBron James this week says the NBA star has changed her life forever ... calling the whole thing "a sign from God."

Josett Latrice became an overnight sensation when LeBron broke his self-imposed social media ban (implemented so he can focus on the NBA playoffs) to "like" one of her pics on the @perfectbooties Instagram account.

"It makes me feel awesome," Latrice told "TMZ Hollywood Sports" ... "I LOVE the fact he liked my picture."

Josett has been studying to be a veterinarian -- but says now that she's got Bron's stamp of approval, she's considering taking serious steps to focus on modeling instead.

"It's definitely a sign from God."

Zac Efron is showing plenty of skin for his new movie -- we've seen the photos -- but there is one body part he's not willing to put on camera ... his butt.

Zac continued filming "Dirty Grandpa" down in Georgia, and it looks like there's a naked motorcycle scene -- but for some reason Zac's a little ass-shy. A butt-double was photographed stepping in for Efron.

Based on pics ... you'd think Zac would be happy to flaunt his cheeks, but instead it was the double's butt in the spotlight.

The Met Gala is where the biggest names in celebrity combine with the biggest names in fashion ... but it's also where Kim Kardashian's famous ass meets Jennifer Lopez's legendary backside.

KK acknowledged the moment by posting this homage to their posteriors ... snapped by none other than Kanye West.

There's no wrong answer, yet we have to ask ...