Explicit, yes. However, the character development prevented me from putting these down. You will certainly find yourself skimming over the 'explicit' just to get on with the story to try and understand this couple. It's been a fun read, better if you have a friend to talk to about it because it's hard to explain why it is addictive until you pick it up for yourself.
For all you fans of the movie #Avatar - James Cameron is making three sequels! "2016, 2017 and 2018?!?! Sheesh! At least they'll be released in quick succession once they are FINALLY released". - "IMDB, as of May 2016 - The release dates have been pushed back again...sigh. 2018, 2020, 2022..."