There’s pretty much only one rule when you’re a guy.
 

Don’t be a douche.
 

Turns out, the fastest way to break that rule is to fall for your best friend’s sister.
 

Ava’s brilliant, sharp-tongued, gorgeous, and five years younger than me.
 

She’s the sexual equivalent of running with scissors. In a word, she’s dangerous. And completely off-limits.
 

Falling for her could ruin everything.
 

Yet I can’t seem to stop, even when her company is threatened by a lawsuit, and my promotion hinges on representing the opposing client-and winning.
 

I can’t see a way out of this mess that doesn’t end in a broken friendship, a broken heart, or a ruined career.
 

I may have broken the bro code when I fell for Ava. But do I have the balls to handle what comes next?