In the last episode, Jon (Kit Harington) and Daenerys finally hooked up, as Bran Stark's voice-over confirmed they were actually aunt and nephew.
Speaking in a special behind-the-scenes commentary for HBO, Clarke, 30, says, "As actors, it's just weird. The reality of what they are to each other, I don't know how that's going to... I think (gagging) might be the reaction."
While Harington adds both the characters know inherently that their equation will lead to some issues in the coming eighth and final season of "GOT".