Sophie Turner might want to think twice the next time she waves at someone from across the room. On "Late Night with Seth Meyers," the "Games of Thrones" star said there was once a time when she accidentally caused some friction in a celebrity couple's relationship.

Sophie Turner worked with Kit Harington for years on the hit HBO series “ Game of Thrones .” But there’s one thing the pair, who played brother and sister on the show, never had to do: film intimate scenes together.