We all know that Game of Thrones' Sophie Turner and Maisie Williams are real life BFFs, proving their friendship through amazing Ned Stark impressions and getting high in bathtubs.

Well, it turns out they were so close on set that crew members thought they were actually a couple – and they liked to play into that speculation, too.

'We fully knew about it, we played into it,' she told Conan. 'So on the set we would kind of do the scene then try and kiss each other in the middle of the scene and see if anyone would react.

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Sophie Turner and Maisie Williams
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'And its Game of Thrones so incest is so normal that they were like, 'alright, that's fine'. It was probably the most tame thing that happened on the show, actually.'

Asked whether they wanted to get it out as a joke, Turner then admitted: 'Yeah… sometimes you just wanna make out with your best friend.'

While the pair are very close, Turner recently admitted that their friendship could be 'destructive' while filming the HBO series.

Sophie Turner and Maisie Williams arrive at Kit Harington and Rose Leslie's wedding
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'I have a friend, Maisie, who was on the show with me, she's just a year younger than me and she and I were growing up together,' she said on Dr Phil's Phil in the Blanks podcast. 'She was my best friend, and she was the only one I really told about all of it.

"Maisie and I used to do it [stay inside] together. I think being friends with each other was quite destructive because we were going through the same thing.

"We used to get home from set, go to a Tesco across the road, a little supermarket, and just buy food. We'd go back to our room and eat it in bed. We never socialised for a couple of years. We didn't socialise with anyone but ourselves."

Game of Thrones aired on HBO in the US, and you can also catch up on the show via Hulu. Viewers in the UK can catch up via Sky Atlantic and NOW TV.

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Sam is a freelance reporter and sub-editor who has a particular interest in movies, TV and music. After completing a journalism Masters at City University, London, Sam joined Digital Spy as a reporter, and has also freelanced for publications such as NME and Screen International.  Sam, who also has a degree in Film, can wax lyrical about everything from Lord of the Rings to Love Is Blind, and is equally in his element crossing every 't' and dotting every 'i' as a sub-editor.