J.K. Rowling’s Harry Potter franchise has become such a cultural institution that it’s acceptable for readers and moviegoers of all ages to obsess over each and every book/movie. But let’s be real: It’s child’s play. Even at its darkest, the Potter world is a soft PG-13, the kind of fictional material that most grown men publicly cop to enjoying with shame and trepidation.

Yet, there’s nothing wrong with liking the fantasy genre, but it’s about time you transitioned through fanboy puberty and spent hours on end inside an R-rated fantasy world. The obvious choice: George R.R. Martin’s long-running Game Of Thrones series, an ongoing five-part narrative complete with dragons, witches, brutish swordsmen, graphic dismemberment, and rampant tits-and-ass.

Initially a string of immense novels, Game Of Thrones is now a kick-ass HBO series, one that plays like The Lord Of The Rings as remixed by Russ Meyer and Herschell Gordon Lewis. But, again, it has dragons and other types of fantastical creations, making it an easy shift away from the family friendly world of Hogwarts and into hardcore adulthood. Even better, Game Of Thrones, not unlike Harry Potter, is rooted in its younger characters, teenagers who ascend to kings’ chairs and military leadership. Just imagine that it’s Potter’s similarly coiffed Draco Malfoy, and not Thrones’ Joffrey, getting slapped the fuck up in the above clip.