Our Blood, Our Pain by Syn Blackrose

Jules
Kai. He’s become my weakness. My purpose in life. I knew I was never a good man, but Kai has tipped me over the edge for the lengths I’d go to for him.
He’s a mess, a beautiful mess, and he wants me. I’ve never been attracted to a man before, so this is new territory for me. But it won’t take long for me to break. I want to fight him, punish him, and adore him.
Oh yeah, and most importantly, he’s my step-sister’s son.
I may not be his Uncle in blood. But this is wrong.
So wrong.
But we can’t help ourselves.

Kai
It’s been years since I last saw Jules, and when he shows up to right the wrongs in my life, the crush I had years ago hits me tenfold.
Jules is not who I remembered. He’s controlling and suffocating.
But he’s everything I want in a man. Protective, rough around the edges.
My need for him erases all logic and moral decency. I need him to breathe.
I don’t care about anything else. I would give up my entire life and everyone in it to have him.

*I do highly recommend reading the Kozlov Brothers Duology, especially Kill for You due to spoilers. Jules & Kai’s story starts in between Tied to You and Kill for You. But you can still read on its own if you don’t mind missing the detail.