Celebrities are getting real about their best and worst on-screen smooches.

Rob Lowe recently praised one of his former co-stars as the best on-screen kiss of his career, while Nicole Kidman previously roasted one of her former screen partners as her worst.

Whether it was the circumstances surrounding the shoot, the chemistry between the actors or a co-star’s choices at lunch, these star’s share what can make or break a romantic scene for them.

Here are some stars who have disclosed their best and worst on-screen kisses.

Rob Lowe

Rob Lowe dished on the actress he considers to be his best on-screen kiss.

During a recent appearance on “Watch What Happens Live,” the “The Outsiders” star told host Andy Cohen while playing “Plead the Fifth” that his best kiss was with co-star, Nastassja Kinski, while filming “The Hotel New Hampshire.”

“Have a look at her,” he said when asked what made her the best. “At that moment in time, she was probably the most beautiful woman I’d certainly ever seen.”

While she was his favorite co-star to kiss, he also mentioned he felt “very, very scared” to kiss her.

Sharon Stone

Robert De Niro and Sharon Stone having a tender moment as they lay on a bed in a scene from the film ‘Casino’, 1995. (Photo by Universal Pictures/Getty Images) (Universal Pictures/Getty Images)

Sharon Stone has only one co-star in mind when it comes to her best kiss.

During an interview on  SiriusXM’s “Radio Andy” in April, the actress called Robert De Niro, “the best kisser in the business,” and said the kiss they shared while filming the 1995 movie, “Chicago,” “really just knocked me out.”

“We did this scene where I have to go to the bathroom, and because I play this hustler, I get him to give me money to go,” Stone explained. “He gives me this money and I look at him like, ‘Really? I think a little more than $50 for the bathroom.’ And he … reaches in, and he gives me, like, $100, and then I lean over, and I kiss him.”

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The kiss was enjoyed by both her and De Niro, with Stone telling Andy Cohen that when director, Martin Scorsese, asked if they wanted to film the scene again, “We both looked at him and went, ‘Yeah, I think maybe we need one more.'”

Sylvester Stallone

Stallone said his kiss with Talia Shire was the worst in his career. (Sunset Boulevard/Corbis via Getty Images)

Although fans love the kiss between Rocky Balboa and Adrian in “Rocky,” Sylvester Stallone doesn’t have fond memories from filming the scene.

In a recent interview with Page Six Hollywood, Stallone referred to his kiss with actress Talia Shire as “the kiss from hell,” but it was no fault of the actress.

“Then I go in to kiss her — pull the hat off, the glasses — and… her nose is running. Badly,” he said. “So we go in for the kiss and she goes [bad coughing noise]. And I go, ‘Oh my God!’And I have to keep moving forward. There is no reverse. So I knew exactly as soon as I kissed her that within an hour I had the flu.”

He then recalled that shortly after filming the romantic scene, he found himself in bed with a runny nose.

Nicole Kidman

Kidman said Skarsgard is her worst on-screen kiss because he ate falafel before filming the scene. (Dan MacMedan/Getty Images)

Nicole Kidman did not hold back when it came to describing her worst on-screen kiss.

During an appearance on the “Las Culturistas” podcast in March, the “Practical Magic” star revealed she “cannot stand bad breath,” calling it a “dealbreaker” for her when it comes to men. She noted, “You want me to lean in? Smell good.”

She then called out her former “Big Little Lies” co-star, Alexander Skarsgard, for eating a falafel shortly before they were going to film a romantic scene.

“I’m like, ‘No, no, no, Alex. I’m meant to be kissing you and into you. Put away the falafel now. Because the bad breath does not turn me on,'” she recalled. “I said, ‘No more falafel. Nope. Not before you kiss. Not before you make love. No more falafel. Put the falafel away.'”

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Kate Hudson

Hudson shared her kiss with McConaughey in “Fool’s Gold” was one of her worst on-screen kisses. (SGranitz/WireImage)

Kate Hudson has been very honest about how she feels about her on-screen kisses with many of her former co-star’s.

While playing Vanity Fair’s Lie Detector Test with her “The Glass Onion” co-star, Janelle Monáe, Hudson was asked to compare her on-screen kisses with two former co-stars; Billy Crudup and Matthew McConaughey.

“I think Billy is a gentler kisser,” she said. “Better? I wouldn’t say better. Definitely…definitely just gentler. It’s a more sophisticated version of a kiss…It’s like theater, Stanislavski, and like Longhorns.”

Hudson was then asked about her kiss with Dane Cook she quickly replied, “No. Canceled.” She starred with him in 2008’s “My Best Friend’s Girl.”

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Hudson said Cook is “canceled” because of his kissing skills. (Eric Charbonneau/Le Studio/Wireimage)

She previously told Gwyneth Paltrow during an appearance on her “Goop” podcast in October 2020 that her kiss with McConaughey in “Fool’s Gold” was one of her worst.

“The thing is, every time I kiss McConaughey, it’s like there’s just something happening and there’s like snot or wind,” she laughed. “When we were kissing in the end of ‘Fool’s Gold,’ we’re like in the ocean, we had the plane crash. He just had snot all over his face.”

When speaking with Monáe, she confirmed that her favorite on-screen kiss was with Liv Tyler, saying “She has the softest lips of them all.”

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Sally Field

Despite the fact that they were dating, Field said her kiss with Reynolds in “Smokey and the Bandit” was her worst. (Michael Ochs Archives/Getty Images)

Despite being in a relationship with him, Sally Field named her kiss with Burt Reynolds while filming “Smokey and the Bandit” was her worst on-screen kiss.

During an appearance on “Watch What Happens Live,” in December 2022, the “Mrs. Doubtfire” star said “It was just not something he did very well.”

Cohen pushed Field to give more details about what made it so bad, asking if it was “The tongue?”

“No, we’re not totally involved [with the kiss], it was just a lot of drooling,” she said.

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