Guarded Heart (A Bruno Mars Fanfic)

When Bruno Mars sees Cat in a club one night he's determined to get to know her he can't stop thinking about her and when he finds out she's a bodyguard he knows the way to at least meet her and hopefully get to know her......better
The sparks fly between them when they first meet but Cat fights her attraction to him and refuses to go out with him.
But what happens when they finally get together and it becomes public knowledge and someone who is very unhappy about it lets Bruno know with hate and threats?
How far will they go?