Rumour has it These 14 Celebrities are Terrible Kissers

Twihards might want to skip this next one entirely. (Don't say we didn't warn you!) Although the world's dreamiest vampire has won multiple MTV Best Kiss awards for the Twilight franchise, Reese Witherspoon was dead set on dashing out the nighttime fantasies of Robert Pattinson's biggest fans. The Big Little Lies star revealed that, during filming for 2011's Water for Elephants, Pattinson proved to be less-than-sexy when it came to kissing scenes. Sure, you can blame it on the nasty cold Witherspoon said he was battling at the time, but it involved a lot of... snot. As she told reporters, “He was literally snorting and snotting through every second of it – and it was not appealing."

Even People’s Sexiest Man Alive can be completely humbled in front of an entire cast and crew. At least that's what happened to Bradley Cooper. He and frequent co-star Jennifer Lawrence first locked lips on the set of Silver Linings Playbook, at which time JLaw (loudly) voiced her disappointment. “After the second take she [Lawrence] said, 'You’re a wet kisser.' You don’t want to hear that. It was not a compliment,” Cooper later revealed in an interview.

Honestly, at this point we're just waiting for Lady Gaga's rating of Cooper's technique.

It must have been all the angst and pent-up hormones running rampant on the set of the Harry Potter franchise — how else to explain star Daniel Radcliffe's alarming (and animalistic) experience while filming his kiss with Emma Watson. "I was ambushed! It was full on," he told Marie Claire. “I always thought it was going to be this soft, sensual sort of moment and suddenly there was this vigorous kissing happening to me. She is a bit of an animal."

Hmm, but it also sounds kinda hot, right?

If this helps you sleep at night, it turns out that even the hottest people living in the world's most famous zip code don't always get it right when it comes to a makeout session. During filming of the 90210 reboot, star AnnaLynne McCord revealed to HollywoodLife that co-star Matt Lanter was actually a lousy smooch. “You know, he actually is a really bad kisser, so it kind of sucks,” she said.

She doesn't mince words, does she?

Is it possible that one of the most beautiful women in the world is actually a mediocre kisser? (And why didn't Brad Pitt tell us this before?) According to James McAvoy, the experience of getting hot and heavy with Angelina Jolie wasn't all that it was cracked up to be. Of his time filming the 2008 thriller Wanted, McAvoy admitted to Today, "I can tell you what it was like to kiss her on a film set. It was awkward, sweaty, and not very nice." Yikes.

Once upon a time, many of us would have lined up all day for a chance to lock lips with Tom Cruise. Although that ship may have sailed (thanks, Scientology!),  Thandie Newton let us all know we weren't missing much anyway. "Kissing Tom Cruise was slightly icky and sort of wet," Newton recalls of her time on the set of Mission: Impossible II. "I'd really go home at the end of the day actually moan about... how many times we had to do it." (Oof.)

That being said, at least one former co-star leapt to his defense. Paula Patton, Cruise's paramour in 2011's Mission: Impossible — Ghost Protocol, told People that the star had some A-list quality breath. "He had amazing breath. It wasn't [too] minty. It was just perfect."

Before we'd ever heard of Robert Pattinson or Zac Efron, there was Leonardo DiCaprio. Who doesn't remember swooning over his romantic roles in Romeo + Juliet and Titanic. We all wanted to be Claire Danes and Kate Winslet, right? Sorry to burst your bubble, but at least one former co-star was left unmoved. French actress Virginie Ledoyen, who shared a kiss with Leo in The Beach, only had this to say about the experience: "There [was] no honest passion. No real sensitivity in our love scenes. In our underwater love scenes all I could think of was not drowning. I can't even remember his kiss."

If you're planning on kissing someone, a general rule of thumb would be to avoid spicy, garlicky and oniony foods that may... you know... put a damper on the mood — unless, of course, you're Jennifer Lawrence pranking the shit out of everyone. Apparently, Kate Hudson didn't get the memo: former co-star Dane Cook roasted the actress when chatting with Andy Cohen on his Watch What Happens Live series. "I did a movie with her, My Best Friend’s Girl, and I think she [may have] purposely ate just like a feast of onions before our scene," Cook says. The fact that he's not 100 per cent sure if it was a joke or not raises a lot of alarm bells.

Ron Weasley harboured a serious crush on Hermione Granger for the majority of the Harry Potter films — but that fact didn't exactly help co-stars Rupert Grint and Emma Watson with their characters' highly-anticipated kiss.  The actor admitted he fumbled the kiss due to nerves. "I never look back at that scene," he said. "I’ve known Emma since she was literally 9 years old and we had this very brother-sister relationship."

Even Watson admits she overthought the pivotal scene. As she told People, “I was like, 'Do I use tongue?' 'Do I not use tongue? Do I cover my teeth? What do I do? Do I go first? Oh my God!' I was so desperate to get it over. After the first take, he was like, 'Whoa, there! Where did that come from?' I was like, ’Sorry!’"

During filming of the movie Forces Of Nature (don't worry, we don't remember it either),  pre-Batfleck Ben Affleck shared a handful of onscreen kisses with his glam co-star, Sandra Bullock. However, according to Ranker, Bullock was less than enamored with the whole interaction. The Good Will Hunting star's breath was so bad that Bullock offered him a mint between takes. (We're getting second-hand embarrassment over here!)

One of Hollywood's longest-reigning hunks, Harrison Ford has been on many a person's "hot" list ever since he first wise-cracked his way through the galaxy in Star Wars and cracked a whip as Indiana Jones. Alas, Helen Mirren is here to burst our bubble. Although the Oscar winner considered him "the nicest, sweetest guy you could want to meet," she wasn't a huge fan of the whole kissing business during filming for 1986's The Mosquito Coast. "He can't kiss," she said. "He's probably not very good off-screen either." Ouch!

Not only did Vanessa Hudgens spill the tea on her anxiety over having to kiss the divisive James Franco in 2012's Spring Breakers, but another former co-star, Zoey Deutch, only had one word to describe her on-screen kiss with him in 2016's Why Him? "Meh," she said in response to Andy Cohen's question on Watch What Happens Live.

While filming her breakout role as Elizabeth Swann in the too-many-to-count Pirates of the Caribbean movies, Keira Knightley shared a kiss with co-star Johnny Depp — who also happens to be 22 years her senior. No word on what Knightley thought of the smooch, but Depp voiced his discomfort to TMZ, "Any kind of scene like that, whenever you're doing that sort of thing, it's always unbelievably awkward, especially having [first] met Keira when she was 17 years old," he said. The awkwardness comes through in the scene, too. Just ty watching it without cringing.