Game of Thrones uses the sex scenes to advance the story, not just for the sake of having a sex scene.
"Fifty Shades of Grey" on the other hand appears to be primarily about the sex which, IMHO, pushes it closer to porn.
LOL. GOT is heavy on nekkid people because it is a cheap and easy way to attract an audience, and because nekkid people is a big part of the HBO brand, and therefore part of the justification for paying for a premium channel. I cannot think of a single GOT sex scene that could not have been shot fully or mostly clothed, with the nekkidness off-screen or implied. But that's not HBO.
“Game of Thrones uses the sex scenes to advance the story, not just for the sake of having a sex scene.”
Huh? Are they discussing major plot points during the act of sex?