The only time I wandered past Game of Thrones on the TV they were showing a rather graphic homosexual encounter.
To me there is too much sex of all kinds in Game of Thrones. But I know people who have watched it and for many of them Game of Thrones has become an addiction. Some of those addicts will be unpleasantly surprised Sunday night.
I've only seen the pilot episode and there were several graphic sexual (rear entry) encounters in that one as well (heterosexual but it was unclear if they were engaging in sodomy or not).