His Toy by Eva Leon

Mason: I met Stefano when I hired him to kidnap me.
He’s got a monster in him lurking just under the surface.
He’s a hitman on the run from some very dangerous men.
Stefano brings out the worst in me.
Until he breaks me wide open and discovers the best.
I can’t let him turn me into his toy.
With or without him, my life can never be the same. I’ll have to let him go, but I’m not sure he’s even going to give me a choice.

Stefano: Mason is more than I bargained for.
I’ll need to break him if we’re going to survive.
Bringing him to his knees is what’s best.
I’ll never let him inside my head or my heart.
That’s what I tell myself every time Mason lets my monster out of the cage.
But I can’t help it.
And now I hate myself for bringing the Omega to heel because once he’s been properly trained, Mason is the perfect mate.