The Seduction (The Seduction, #1-4)

I'm your darkest secret. Your dirtiest fantasy.
Who am I? The Seducer. And I've never lost a case.
Until her. Keely Fawes. My mysterious new target. Someone wants to destroy her -- and I'm their weapon of choice. Her secrets could be my undoing. Her innocence will ruin me. But I don't care.
I'm going to show her how good it feels to be bad. She'll be screaming in pleasure - and it’ll be my name on her lips.
Forever.