PDA

Half of Camila Cabello's heart has left Havana for Ibiza ... 'cause she just had a wet 'n wild make-out sesh with her beau Henry Junior Chalhoub while visiting the Spanish island!

Check out the fun and flirty pics ... the "I LUV IT" singer and the billionaire heir couldn't keep their hands off each other as they passionately locked lips while taking a dip off the coast of Ibiza.

At one point, the lovebirds moved their PDA to a tiny dock, where Camila climbed on top of her bae and continued smooching him as he wrapped his hands around her waist.

Astronomer CEO Andy Byron and HR Chief Kristin Cabot were all over each other even when they weren't on the kiss-cam ... 'cause we got them locking lips before they got busted.

Check out the video ... shot from behind their seats. You see the massive stadium and the crowd holding up lighted phones as Chris Martin belts out Coldplay's hit, "Yellow."

The pair is silhouetted by the brightly-lit stage ... as they sway to the music. At times, they had their arms around each other, and you see Andy going in for a kiss.

Reese Witherspoon's sailing the French Riviera this summer on a luxury yacht with her boyfriend Oliver Haarmann ... and if that doesn't sound romantic enough, check out these photos of Reese and Oliver smooching like there's no tomorrow.

The actress and her financier boyfriend packed on the PDA Sunday in Saint-Tropez ... locking lips and getting handsy on the stern of their big fancy boat.

Reese and Oliver kissed, hugged, laughed and embraced as they sat with their feet dangling in the water ... then they took their love fest overboard.

Trinity Rodman and Ben Shelton are certainly making the most of their summer ... 'cause the soccer star shared a recap from a recent getaway -- and they couldn't keep their hands off each other!!

Rodman -- daughter of NBA Hall of Famer Dennis Rodman -- gave her Instagram followers a glimpse into her romantic trip with her tennis star bae on Monday ... sharing several pics and videos of their summer together.

One of the photos shows them locking lips right in front of the water ... with the NWSL forward showing off her physique in a green bikini.

Jennifer Aniston heating up those summer romance rumors with Jim Curtis ... 'cause he gave her a streamy massage while on a yacht trip!

The actress and the hypnotist were spotted together on a yacht off the coast of Mallorca ... wearing matching black shirts -- Jenn in a tank top and Jim in a collared number.

Jenn must've had a knot in her neck, 'cause Curtis puts his hands on her and starts rubbing away ... a move that could just be friendly -- though it seems to indicate there's more going on between the two of them.

Alessandra Ambrosio and her man Buck Palmer are all over each other on their European vacay ... and, Buck's body is just about the only thing covering Alessandra's.

The model and her dude were in Ibiza on Friday ... taking a dip at Casa Jondal -- a top-tier resort on the island good enough for this supermodel and her jewelry designer better half.

AA put on a cheeky display ... going with a thong-style bikini -- while Buck showed off his strong chest and held Alessandra's hand.

Sophie Turner’s feeling the love and spilling the tea -- all over her bloke Peregrine Pearson back in her native UK ... and yeah, the PDA was piping hot!

Catch these snaps -- The "Game of Thrones" star was having a full-on snog sesh in London Thursday, looking proper loved-up with Peregrine before the pair strolled through Notting Hill like they were Hugh Grant and Julia Roberts.

Sophie kept it breezy in a laid-back look, while Peregrine played it just as cool -- both donning shades like true pros braving the great British scorcher (AKA anything above 70°).

Justin and Hailey Bieber are enjoying some of their recent windfall ... because they're on vacation on a Spanish isle ... and they look super happy.

The parents snuck off Tuesday for a date night in Mallorca, enjoying dinner and a sunset along the water ... and there was plenty of PDA.

Justin and Hailey held hands as they walked into a restaurant ... and after their meal, they plopped down on a patch of coastline and Hailey started rubbing Justin's back. A tender moment, for sure.

Rachel Zegler has found her Prince Charming -- the "Snow White" star was packing on the PDA with Nathan Louis-Fernand, and he’s no stranger to the spotlight ... or a well-timed shirt drop!

Catch the clip -- Rachel melted into the British actor/dancer's arms at the London BST Hyde Park Festival Sunday, giving him the ultimate puppy dog eyes ... basically begging for that kiss. And yep, he delivered.

Rachel seemed to know other folks in the crowd, but her eyes (and arms) stayed locked on her man -- who, LBR, was giving full smooth operator vibes, probably coming in handy during his "Magic Mike Live" days of grinding onstage for a living.😉

But RN, Nathan’s been backing Rachel up in the West End adaptation of "Evita" -- literally -- as a dancer in the London shows, so we’re guessing that’s where the sparks started flying!

Fireworks were flying between President Donald Trump and First Lady Melania as they celebrated America's Independence Day Friday ... and their lovefest -- followed by some hilarious dance moves -- are forever cemented on video.

Watch the PDA-filled clip -- the pair seems smitten as they cozy up on the balcony of the White House to honor the 4th of July. Donald pulls her in tight ... and then goes in for a smooch, and later, a forehead kiss.

47 and his former model wife also put on a dance show for their fellow Americans -- Trump served up his signature "Trump dance," and Melania even got in on the fun by doing her own version of the move with open palms.

These two love birds are turnin' up the love meter on this fine Tuesday ... Can you guess the hot Hollywood couple in the steamy snap? Here are a few clues to get your foot in the door.

They met in 2014 on the set of their show ... One of these professional dancers won the Mirrorball Trophy with their partners, Joey Graziadei and Adam Rippon, while the other took home the W with respective partners, Xochitl Gomez, Laurie Hernandez and Rumer Willis.

Jeff Bezos and Lauren Sanchez are in a state of bliss post-wedding, floating like a water taxi through Venice ... and locking lips on a ship as hundreds of photogs snapped pics.

JB and LS were spotted in the city Saturday ... and, they gave paparazzi a show -- full of smiling, waving and, eventually, a big old kiss.

The two are dressed to the nines in the pics ... clearly headed to the next big event of their wedding week.

Jeff Bezos and Lauren Sanchez are kissing like there’s no tomorrow -- playing lovestruck teens while cruising to their fairy tale wedding rehearsal in Venice … while all the world watches.

The PDA was full throttle -- the couple were smooching and waving like royalty from their water taxi Thursday, with Jeff grinning ear to ear and Lauren beaming just as hard ... looking surprisingly comfortable for someone dripping in extreme, skintight couture

Lauren was serving bombshell -- rocking a sculpted off-the-shoulder midi with a metallic bodysuit that snatched her waist to perfection. If there was a pre-wedding health kick, it definitely did the job!

The woman in the viral video with Ja'Marr Chase says their awkward hug is being blown way outta proportion ... claiming she and the NFL star are just "old friends."

The lady at the center of the interaction addressed the noise on Monday ... shortly after TMZ Sports published a video of her and the Cincinnati Bengals receiver's cringeworthy moment in front of photographers in New York City.

In case you didn't see it, Chase -- who signed a $161 million deal in March -- was walking out of Zero Bond when the woman tried to hug him, but he gave her the cold shoulder.

Lana Del Rey’s still deep in that honeymoon haze -- 'cause she hit pause mid-performance not for a water break, but to maul her man with one heck of a kiss.

Yup, it all went down Monday night at Cardiff’s Principality Stadium -- Lana was mid-serenade with "Stars Fell on Alabama" when she suddenly veered off stage ... to lay a full-blown PDA ambush on hubby Jeremy Dufrene.

This wasn’t some cute little peck -- it was a full-on makeout sesh that felt way too private for the side of a stage. Like ... get these two a room, stat!

Jennifer Garner can't keep her hands off her boyfriend -- or her lips -- 'cause she was caught sucking face with him at a Los Angeles charity event.

The actress and her lover, businessman John Miller, popped up Sunday at a fundraiser for Save The Children, which helps feed starving children.

After completing a one-mile run, Jen was photographed sharing a smile with John while putting her arm around him -- and planting a big kiss on his lips!

As for the hungry kids ... Jennifer talked all about how she was trying to save them in an Instagram post five days ago.

Jen said she's been running one mile a day for 67 days to raise a dollar each day because "just $67 can help bring a child back from the brink of starvation." She said Sunday marked her final one-mile run -- and she certainly made the most of it with John, who was there to lend support.

The two are going strong despite recent rumors that Jen and her ex, Ben Affleck, had rekindled their previous romance. You may recall ... Jen and Ben looked cozy together at a paintball outing following Ben's split from ex-wife Jennifer Lopez.