Arden St. Ives has the misfortune to be calling for alumni financial donations when he meets Caspian Hart, the billionaire referenced in the title of this tale. Arden isn't very good at soliciting donations, but he manages to charm Caspian with one phone call. When Caspian shows up at the alumni dinner the following week, Arden becomes truly smitten, until he finds out the details of Caspian's donation to the university. 
 While Arden doesn't like Caspian's high-handedness, he is infatuated with the man, not his money. Caspian seems to like Arden too, but when he offers Arden a deal that he finds hard to refuse, it's a huge red flag regarding Caspian's ability to have a real relationship, but Arden goes along with it anyway. There's heartbreak in his future, for sure. 
 I liked this story, but I also found it to be a bit sad. Arden wants a relationship with Caspian more than his money, but Caspian is unwilling or unable. I'm not sure which one this is, although he does manage to act like less of a jerk when it becomes clear that Arden is not going to stay unless Caspian offers up some emotional content in this relationship, so I think he's capable. I was not a fan of Caspian's arms-length treatment of Arden for most of this book. 
 I loved Arden. It's easy to see why Caspian is enamored of him. He's sweet, kind, and he has feelings! He truly cares about Caspian the man, not the billionaire and I adored that about him. I have to be honest and say I really didn't care for Caspian at all, and at one point I was hoping that Arden would dump him and try to make a go of it with his roommate. I'm sorry to say I'm still hoping that Arden gets the emotional partner he needs, and I just don't see that being Caspian. 
 How to Bang a Billionaire is well-written and is told solely from Arden's point of view. The spotlight for most of the book is on Arden and Caspian, and I thought the book took on a new and more interesting dimension when other secondary characters, like Ellery, Caspian's sister had some page time too. 
 Overall, I thought it was a good start to the series. It did leave me wanting more and I'm eager to see how Arden will really handle Caspian's kink which is really only alluded to throughout the book. 
 ARC provided for review.