HBO has a lot of nudity involved in their shows. For instance: Girls is pretty much guaranteed to have nudity in every single episode, so much so that HBO had to tell them to calm down just a little bit. True Detective got into hot water on the Interwebz because of the blasé nature in which female nudity was shown and portrayed, and, turns out, there are contracts and stipulations that require nudity on HBO shows.
"It's only right, if you're going to make a show where nudity and sex is a large part of it, that you be a part of that," Harington said, largely echoing criticisms that only females tend to be naked on HBO shows. But, when questioned about whether or not he'd show his, "I wouldn't say I'd be happy about it," then there's a pause, beat, some contemplating, "I'm not saying. Because I don't know. It would have to be f*cking well deserved."
Those familiar with the show may recall a scene in which Jon Snow's butt is seen, but that wasn't Harington himself.
Harington broke his ankle six weeks before shooting on season three began when he drunkenly tried to climb into the second story window in his London apartment. He had to use a stand-in until his ankle healed. "So the only time you saw my ass," Harington said. "It wasn't my ass." Y'know, in case you were wondering.
GoT's uneven average of male nudity compared to female nudity has been addressed before—similarly, star Sibel Kekilli who portrays Shae in the series has said of the show's nudity dilemma: "Why are all the women naked? I mean good-looking guys. I want to see Conleth Hill and Nikolaj Coster-Waldau and Peter Dinklage..."
[via Death and Taxes]