His Asset. The Unnaturals, #1

Sometimes the most dangerous experiment is falling in love. I was born in a lab. Created, not conceived. A number, not a name. Until Adam calls me Bella. Adam might not have created me, but he's one of the facility's brightest minds. He's still fusing animal DNA with human, still chasing the next breakthrough, no matter the cost. He saved me from the sterile hell of the lab by bringing me to his home.
He makes me feel almost human. Almost desired. But I'm still a freak with wings I've never used and powers I barely understand-except for my echolocation, the one thing I've dared to test in secret, preparing for the day I'd finally escape. When I find the courage to run, I crash-land in the worst part of the city, where predators hunt and the weak don't survive. When a gang of thugs corners me, ready to do unspeakable things, my powers erupt with a force that shocks even me.
But it's Reuben who truly saves me. Chief to everyone else in the underground fighting world, he's everything Adam isn't, raw, dangerous, and brutally real. He doesn't see a lab experiment when he looks at me. He sees a woman worth protecting. Adam isn't giving up without a fight. Though he didn't create me, he claimed me, made me his. He owns me now, and he'll destroy anyone who tries to take me away.
Now I'm caught between two worlds: the sterile perfection of science and the savage beauty of the streets. Between the man who possesses me and the man who makes me feel free. One represents my past. The other, my future. But choosing between them might cost me everything, including my life.