Bound By Darkness by HP Mallory

I thought I was just an angel.
I was wrong.
Running from a past I can’t remember, I’ve found myself caught between three powerful men who stir feelings in me I never knew existed. Dragan, a brooding gargoyle king whose touch ignites my soul. Baron, a mysterious vampire whose darkness calls to something hidden deep within me. And Cambion, an elven royal whose hatred barely masks his burning desire.
When my body betrays my true nature—revealing black wings alongside my white ones—everything changes. I’m not just angel, but I’m also a Succubus. A Demon.
The very creature Dragan has sworn to destroy.
Now I’m bound by darkness, both within and without. As we journey across dangerous realms, pursued by enemies who would see us dead, I struggle with the hunger growing inside me. A hunger only these three kings can satisfy.
With my memories still locked away, I don’t know who to trust or what I’m capable of. All I know is that the fate of the three realms may rest in my hands, and the only way forward may be to embrace both the light and the shadows.
They fear what I am, yet they can’t resist me.
And I’m beginning to realize I can’t resist them either.