Cocky Brutal Sinner by Lena Hunt

Brinley Windsor has been under my skin for five years and in my bed for three of them. Nobody knows. Especially not Luke—her brother…and my best friend.
I’ve kept every secret, played by every rule, and buried every instinct to claim her out loud.
Then an old blog post goes viral and costs Luke a seven-figure deal. Now my friends are out for blood, hunting for the anonymous writer who’s been trashing them for years.
They don’t know it’s Brinley. But I do. And the worst part? They gave her every reason to do it. I was there. I was complicit. And I’ve been carrying that sin ever since.
I failed Brinley once. I can’t do it again. But choosing her could destroy the only family I’ve ever known—and walking away would destroy me.