A quick google search turn up this review: Game of Thrones: Sexual Politics. Daenerys was aged up to 16 for the mini-series. Interesting fact from the review is how the mini-series amped up the sex but banished the rape, leaving the violence mostly as a series of many beheadings.

That explains why, by the 6th episode, I started wondering when we'd get a scene that featured a character getting beheaded WHILE having sex. =D

Started reading the first book today at lunch.