PDA

Hudson Williams knows all about bringing the heat ... and the "Heated Rivalry" star is putting his skills to work over in Greece ... packing on the PDA with his longtime girlfriend.

Check out the photos ... a shirtless Hudson is kissing all over his tattoo artist girlfriend Katelyn Larson as they play in the waves at the iconic Nammos Beach on Psarou, a Greek island.

It wasn't just kissing ... Hudson and Katleyn hugged and held their bodies close ... super romantic!!!

Hudson looks like a hunk with his slicked-back dark hair, and Katelyn is easy on the eyes in a polka dot bikini.

When they weren't kissing or hugging, Hudson was squeezing a lime into a drink and sipping the concoction in the waist-deep water. Ah, refreshing.

Looks like it's all Greek to Hudson and Katelyn.

Ariana Grande is still a handful for Ricky Alvarez as they give their romance a second chance ... but it looks like he can handle it ... because he's grabbing a handful of booty.

TMZ obtained a photo of the singer and her man Thursday in New York City ... she's on her tiptoes with one hand around his shoulder, and he's got a mitt on her ass.

Ariana's multitasking here ... holding a dog on a leash ... the pup looks like her pooch, Toulouse, and while Ricky was marking his territory, the dog was doing the same.

Katie Holmes and her new man, Jason Bard Yarmosky, are painting the Big Apple red this week ... stepping out for another cozy date ... and photos show them getting very handsy.

The pair headed out to dinner together Tuesday night ... with Katie rocking an orange and white shirt with a floral pattern and Jason keeping it casual in a gray T-shirt.

Check out the gallery ... Katie and Jason wrapped their arms around each other as they walked ... and Katie even let hers slip all the way down Jason's back -- touching him right around his backside.

Jax Taylor got very cozy with someone who's been by his and Brittany Cartwright's side for years ... 'cause TMZ has learned the reality star vacationed in Mexico with the former couple's longtime publicist ... and we have photos of them in the pool.

The "Vanderpump Rules" alum spent the weekend at Hotel Mousai in Puerto Vallarta with Lori Krebs, who has represented both Jax and his estranged wife for years.

TMZ obtained photos showing the pair getting awfully close in the resort's infinity pool.

Jax and Lori are seen embracing in the water, standing chest to chest while talking and, at one point, wrapping their arms around each other as they floated together.

Jessica Alba and her boyfriend, Danny Ramirez, took their romance from Taylor Swift and Travis Kelce's wedding to an Italian beach, packing on the PDA in a new Instagram post.

Check it out -- the actress shared a handful of snaps from their Italian getaway ... including a bikini selfie that showed off her toned torso, and had Danny all cuddled up and kissing her shoulder!

Another photo shows Danny giving her a sweet kiss on the cheek at dinner.

Speaking of food ... it appears the couple is enjoying all the treats Italy has to offer, as Jessica posted snaps of spritzes, prosciutto, gelato, pasta, meatballs, and so much more.

Bunnie XO is hopping on from her divorce in a hurry ... locking lips with a new dude in Jelly Roll's own bar ... and it's all on video!!!

We obtained footage showing Bunnie making out with Dylan Wolf -- a star on the new Netflix reality show "Calabasas Confidential" -- in full view of patrons at JR's Goodnight Nashville Bar in the Music City.

The PDA went down on the Fourth of July, when Bunnie and Dylan hung out in the rooftop's VIP section ... passionately making out underneath some flashing blue lights.

This is not a drill ... Taylor Swift and Travis Kelce are officially married!!!

Check it out -- massive signs went up around New York City's Madison Square Garden at about 7:30 PM EST reading ... "JUST&T MARRIED!"

And we've learned the one and only Adam Sandler officiated the wedding ... with Taylor's brother Austin Swift serving as her Man of Honor and Jason Kelce standing by their side as Travis’ Best Man.

The bridal party wore custom Christian Dior Haute Couture looks designed in Paris by Jonathan Anderson, Creative Director of Dior Women's, Men's and Haute Couture Collections, "in close collaboration with the couple," the fashion house announced.

Chris Brown was leaving very little to the imagination during his live show in Minneapolis ... he called a girl on stage and started simulating very steamy sex with her ... and it's all on video.

CB was thrusting, humping and grinding on the fan while she was on all fours on a mattress on stage, for an arousing rousing rendition of "Take You Down."

She seemed to be enjoying herself, because she was backing it up and twerking on him ... and Chris couldn't help but cop a feel.

Looks like one night behind bars wasn't enough to bring daredevil Empire State Building climbers Ivan Beerkus and Angela Nikolau back down to Earth ... they were over the moon after being released from jail and kissed for the cameras.

Check out the video and pics -- the newly engaged thrill-seekers walked out of Manhattan Criminal Court on supervised release Thursday morning hand in hand ... then planted a passionate kiss right outside for everyone to see.

If the overnight jail stay rattled them, they sure didn't show it ... the pair looked on top of the world, soaking up every second of the attention from their jaw-dropping proposal atop the Empire State Building.

Before the kiss, the couple was charged with multiple felonies ... including reckless endangerment and burglary. They appeared in court wearing the same black outfits they had during Wednesday's stunt ... they did not enter a plea and the judge gave them supervised release.

Taylor Swift may be days away from marrying Travis Kelce ... but don't expect ex Joe Alwyn to be crying into his tea ... 'cause his romance with Sarah Pidgeon is heating up fast!

The pair soaked up London's scorching heatwave Monday, enjoying a picnic in the park -- and they looked completely wrapped up in each other, with Sarah leaning in for a long, romantic kiss.

Sarah looked totally at ease, breaking into a playful dance and lip-syncing along to a song while Joe watched, looking clearly smitten.

For a guy who famously kept things ultra-private during his romance with Taylor, this is some major PDA!!!

Pucker up ... it's National Kissing Day, and nobody celebrates with more enthusiasm than Hollywood's biggest lovebirds!

Just check out the photos and take some tips from couples like Claudia Sulewski and Finneas, Kourtney Kardashian and Travis Barker, and Francesca Farago and Jesse Sullivan, who have never been shy about showing off their affection in public.

The love doesn't stop there ... these snaps are more of an endless love type deal.

Hayley Kiyoko and Becca Tilley brought the romance, while Val Chmerkovskiy and Jenna Johnson looked like a pair of smitten teenagers as they shared a kiss during a trip to Disneyland.

Dua Lipa and Callum Turner are making the most of their Italian honeymoon ... and they can't take their hands off each other.

They're clearly enjoying some newlywed bliss on the Amalfi Coast ... and Callum's got the scratch marks on his back to prove it.

He and the pop star were caught on camera packing on the PDA and soaking up the Mediterranean sun as husband and wife.

Joe Alwyn sure does have a type ... 'cause the actor's been spotted getting cozy with actress Sarah Pidgeon ... and the Taylor Swift resemblance is pretty hard to miss!

Seriously, just look at these pics ... the British star clearly isn't wallowing over his ex's upcoming wedding to Travis Kelce ... 'cause he was looking downright giddy on a date night in NYC with the hottest actress of the moment.

The pair couldn't have looked more into each other if they tried ... with Sarah throwing an arm around Joe and the two laughing away like a couple of teenagers with a crush.

Katy Perry and Justin Trudeau may be grown, but they're living the teenage dream ... making out in the grass like a couple of lovebirds ... and we've got the photos!!!

The couple got cute and cozy during a picnic in Santa Barbara over the weekend, packing on the PDA while they laid out on a blanket.

Katy and Justin rolled up in the pop star's Moke with some food for a sweet park picnic ... and they even brought a couple of kids along for a little family fun.

Glen Powell and Michelle Randolph are smoochin' in New York City ... and not exactly trying to hide it.

We got photos of the pair out Saturday as they're seen showing some serious PDA while out in the Big Apple ... including multiple moments of hand-holding and a kiss that locked in the romantic outing.

The two appear relaxed as they walk through the city streets together, sticking close, and keeping cozy pretty much the whole time they’re out.

"Summer House" star Kyle Cooke is back at it again ... kissing fans in public on video.

In footage going viral online, Kyle is seen leaning in close to a woman at a nightclub while he's on tour for his DJ set ... laying a few smooches on her before telling her, "You're actually really hot, I'm not joking."

Notably ... this is the second video to come out this week of the Bravoleb smooching a mystery woman ... all while his ex-wife Amanda Batula galivants around with West Wilson -- a controversy that blew up the famed friend group.