It's just sex. It isn't bestiality or anything else really dodgy. It isn't all that explicit. No full frontal male nudity that I remember (unlike Spartacus
: - now there is a show I wouldn't watch with family
) Some bits are done better than others and most of it isn't at all titivating. Just people bumping uglies
I'm pretty sure you see Hodor's cock in one episode haha.