Emilia Clarke had extreme reaction to brother being on set for her Game of Thrones sex scene

It's no surprise that Emilia Clarke was not a fan of her brother being on set for one of her Game of Thrones sex scenes.

The Daenerys Targaryen star would sometimes be in the 'nude' while her romance with Jon Snow, played by Kit Harington, was a big feature in the final two seasons.

Reuniting at the Superhero Comic Con and Car Show in San Antonio, Texas last year, the duo opened up about their time together on the show, and how they would get in on for the camera.

Clarke reluctantly revealed that her brother was once on set on the day she and Harrington filmed their first sex scene.

The 37-year-old actor said: "I do remember the day, our sex scene day, and my brother was there.

"My brother was in the camera department and he was on set that day."

A bit of mood killer, right?

Emilia Clarke was ashamed to admit that her brother 'was on set that day'. (HBO)

Clarke seemed to realise how awkward the situation was.

She continued: "It was literally like, 'Mate! You’ve got to get him out of here. He’s not allowed to be here!'"

Beyond their intimate moments together in Game of Thrones, Jon and Daenerys form a political alliance against Cersei Lannister, who is the monarch of the Seven Kingdoms.

Through a series of twists and turns, viewers learned that Jon was Daenerys' nephew due to a complicated family tree.

Ultimately, the couple didn't have a happy ending and fans were generally less than impressed with how things wrapped up in the show, which began in 2011 and finished in 2019.

Now, her brother being on set wasn't the only mishap to take place during a Westeros romp scene.

She asked for her brother to be taken off set. (Instagram/@emilia_clarke)

While filming love scenes with Jason Momoa's character, Khal Drogo, Clarke constantly burst into tears.

Admittedly, these scenes came very early in her acting career and portrayed marital rape.

In an interview on the Armchair Expert with Dax Shepard in 2019, Clarke said: "He [Momoa] was crying more than I was.

"It's only now that I realise how fortunate I was with that, because that could have gone many, many, many different ways.

"Because Jason had experience - he was an experienced actor who had done a bunch of stuff before coming on to this - he was like, 'Sweetie, this is how it's meant to be, this is how it's not meant to be, and I'm going to make sure that that's the f***ing gaze'.

"He was always like, 'Can we get her a f***ing robe? She's shivering!'

"He was so kind and considerate and cared about me as a human being."