'Game of Thrones' Stars React to Daenerys and Jon's Final Scene

Warning: Major Spoilers ahead for the Season 7 finale of Game of Thrones! Read at your own risk...

After using an entire season building a relationship between Jon Snow and Daenerys Targaryen, Game of Thrones finally achieved #BoatSex in last Sunday's finale. Despite how good those two are together from a personality standpoint, there was one major problem with this hook-up.

As fans have guessed for years, Jon is actually Aegon Targaryen, the son of Rhaegar Targaryen and Lyanna Stark, and the rightful heir to the Iron Throne. This makes him Dany's nephew, which makes this entire scene totally disturbing.

We were all a bit grossed out watching this unfold, and so were the actors involved in the scene. During a behind-the-scenes video released by HBO, the show's biggest stars said they weren't the biggest fans of filming that scene.

"For us, as actors, it's just weird," said Emilia Clarke, who plays Daenerys. "The reality of what they are to each other? I don't know how that's gonna....I mean, I think kind of (gross sound) might be the reaction."

Despite the fact that he made some jokes about it on-set to his co-star, Kit Harginton (Jon) knew that the scene was coming for quite a while.

"I think it's an inevitability from about halfway through the season that Jon and Daenerys are gonna fall into bed together," he said.

Tyrion Lannister was outside watching this scene unfold — which was a little creepy in and of itself. Actor Peter Dinklage said he had concerns about the union outside of what might be on his character's mind.

'It's Game of Thrones," Dinklage explained. "There's a long history of romance not ending well on this show."

Coming from the character who strangled his lover with a sheet after finding her in bed with his evil father, "not ending well" is a bit of an understatement.