There's outrage over a "Fifty Shades of Grey" fan fiction that glorifies the troubling relationship between singers Chris Brown and Rihanna. An anonymous author who goes by the pseudonym J. Lola is trying to sell the book, called "50 Shades of Sin," on Amazon, Radar Online reports.

According to the description, the book is about "the strange story of Robyn (Rihanna's real name) and Chris, and how they find love in a HOPELESS PLACE. From the moment they meet, their attraction is explosive. They fall hard for each other. They crave each other every minute of the day. However, they just can't be together. This is a story about love, but it explores the difficulties, sacrifices, and pain that love brings as well."

"For fellow Robyn fans, you are going to love this!" the author continues.

According to Radar, the author mentions Chris' "groupie Asian girlfriend" (who sounds like the singer's real life girlfriend Karrueche Tran) and Robyn's best friend named Melissa (in real life Rihanna is best friends with Melissa Forde).

In the book J. Lola paints the picture that Chris' violent and dominating behavior is a trait Robyn finds desirable and sexy. According to Radar, at one point the character threatens to break a man's hand and instead of being concerned Robyn tries to imagine him naked.

In an excerpt from the book Robyn says:

"I was hesitant [to date him]. I wasn't sure why, but I felt as if meeting him would open up a box that I wasn't sure I was ready to open. Thinking back, I realize that there was a part of me blasting out a warning to stay away from Chris then. Even before I met him."

Reportedly there are several times the author mentions Chris' "violent outbursts." At one point Robyn even realizes Chris is "fighting demons" but she is determined to make the relationship work.

"I'm f**ked up," Chris warns her in the book. "I'm really f**ked up."

She responds by saying they could be "f**ked up together."

Reportedly the author is planning on writing more books about Chris and Robyn. At the end of "50 Shades of Sin" J. Lola tells fans they can "follow more Robyn and Chris' story, all the way down to what happened that sad night of the Grammys," referring to the time when Brown beat Rihanna in 2009.

What do you think of the book?