Pandorum

Hey guys! I figured you could help me find the title of a novel... All I remember is that it was kinda controversial because of its sexual content,the main character was some sort of a Casanova,a charming man from Ireland (I think) and the book's title was the name of a greek God like Perseus or Theseus. The book is also kinda new, published after 2010 most likely. Does anybody know which book could be ?