The Incredible Mr. Black: A Blackstone Series: Book 1

“The plot just kept getting more intense as I read it. I have to say that the ending left me wanting more. I can’t wait to read the next book in this series.” Crystal at Goodreads.
When Maximilian Blackstone’s penetrating gaze washed over Alex, he disappeared inside her body. Recent college graduate Alexander Bishop accepted a position at Blackstone Enterprises, where she was mesmerized by the handsome, thirty-something billionaire Maximilian Blackstone who is into bondage and S&M. Unable to accept his lifestyle, she leaves Blackstone Enterprises only to return three years later for revenge disguised as a blond BDSM enthusiast to satisfy Max’s every need. Will Max learn Alex’s real identity before she becomes entangled in the S&M lifestyle? This is the first book in a 9 or 10 book series.