Nobody would think that kissing Emilia Clarke would be a hassle, let alone disgusting. But if you’re Kit Harington (playing a character who is about to discover that his hot new dragon-lady girlfriend is also his aunt) then it might be a tiny bit different.In a new HBO mini-documentary about the season 8 premiere, the cast and crew discuss the making of the romantic moment between Jon Snow and Daenerys Targaryen by the waterfall near Winterfell. For one thing, there was no actual waterfall there—the aerial shots of the scene were taken in Iceland, and after showrunners David Benioff and D.B. Weiss requested a waterfall, voilà! One was added into the scene later.But, thanks to special effects, Harington and Clarke didn’t have to be there in person. Instead, they were filming their kiss in front of a green screen—hardly the pristine setting we see in the show. And perhaps the actors felt it, because in behind-the-scenes footage of the filming, Harington breaks off the kiss and fake-gags. The sound he makes is quite something! If I had dragons, honestly, I wouldn’t let him get away with that.But it’s a bit more forgivable when you note that Clarke has said that both actors would fake-retch while filming these scenes. Since they had become such close friends on set, the kissing part did not come naturally. “The first scene we had together,” Clarke told Variety, “we both just started laughing. Why are you looking at me this strange way and saying these strange lines? You’re my friend!” Harington told the Daily Mirror, “Emilia and I had been best friends over a seven-year period and by the time we had to kiss it seemed really odd.” Also, the acting duo and Harington’s wife, Rose Leslie, are all super good friends, having met on the GoT set—no wonder it’s awkward. Still, obviously, that’s not the hardest part of the job, he said: “She’s wonderful and I love Emilia and I’ve loved working with her. And it’s not hard to kiss her, is it?” Estelle Tang Senior Editor Estelle Tang is the Senior Editor covering culture and entertainment at ELLE.com—including TV, movies, books, music, and Adidas tracksuits.