Joanna Lumley didn't enjoy kissing Leonardo DiCaprio 15 times during Wolf of Wall Street

You could be forgiven for thinking that getting paid to make out with a Hollywood star is a pretty sweet deal. But you'd be wrong, apparently.

Now, granted it's not getting up at the crack of dawn and doing a 15-hour shift on a building site, but according to Joanna Lumley, it's not as great as it sounds.

And she should know, she had to play tonsil tennis with Leonardo DiCaprio for hours on end.

The 76-year-old actor starred alongside Leo in the 2013 movie The Wolf of Wall Street, in which she played Emma, the classy British aunt of Margot Robbie's character.

If you've seen the film, you'll remember that at one point the pair are sat on a park bench and end up kissing.

But while some would have watched that and thought, 'She's a lucky bugger', the truth is that she hated it.

Speaking at a dinner for the Elizabeth’s Legacy of Hope charity a while back, the Brit said it's really no fun kissing on film.

"I did kiss Leonardo DiCaprio, about 15 times in fact," she recalled.

Paramount Pictures

“But I'll let you into a secret. It's actually no fun kissing actors, no fun at all. There are so many takes and you both have to chew so much chewing gum.

"It's like kissing someone in a dentist's waiting room.”

At least her co-star can take solace from the fact that it wasn't because he was a lousy kisser.

Often, though, when actors get close while shooting a movie, romances can blossom.

But considering DiCaprio's dating pattern over the years, that was never on the cards with him and Lumley.

Not only is the Absolutely Fabulous star happily married, but DiCaprio tends to go for women many years his junior - something he's been called out for in the past.

@Kathbum/Twitter

Director of women and girls campaign Right to Equality, Dr Charlotte Proudman, recently took to Twitter to share an article that showed DiCaprio allegedly 'cosying up' to a 19-year-old model while reportedly being in a romance with a 23-year-old.

Dr Proudman tweeted: "Not enough people are talking about Leonardo DiCaprio who is almost 50 — and 'getting close' to a 19 year old teenage girl."

However, comedian Katherine Ryan contested Dr Proudman's claim, responding: "This is literally all I've talked about for SEVEN YEARS."

Responding to a comment which questions what the 'crime' is considering DiCaprio and his alleged new love interest are both 'adults,' Ryan added: "No crime just a creepy pattern."