Why did I think it would be a good idea to read this story? I should stop reading e-books just because they are available for free via Amazon Kindle. This approach does nothing but constantly disappoint me, because (nearly - I don't want to make generalizations) each one of those freebies wants to convey nothing but entertainment, yet utterly fails while trying to do so. 
 K.A. Merikan's "Mr. Jaguar" deals with a typical bad boy called Mike Miller coming across the sexy billionaire, James Austin, who has been bullied by Mike years ago in high school. And that's already the entire thing. Despite being a short novel, nothing really happens, and none of the jokes included in the text have been really funny. The only thing I managed to laugh about was how it was supposed to be funny, however ended up being everything but funny. I didn't get into the characters' minds, I didn't get into the story itself, and I especially did not understand the approach the author(s) used with this story. I might have forgiven insta-love, but this one was more like insta-sex, so it did not really leave any room for the characters to be developed in any significant way, especially since the bullying mentioned about the characters' common past did not really take part in the story. 
 "Mr. Jaguar" is a story to be forgotten easily. More regular M/M readers might like it, though - I didn't.