I own none of the characters, just the storyline/plot. And im winging it so who knows when new parts will be up.

Introduction:

You were supposed to be a Toy, my Toy. As soon as I met you, I knew you were just like me and that summer was suppose to be our best game. Ha what was I thinking, she had ruined us completely. You had been completely infatuated with me, the only person that saw the real me and loved me for it. And yet in the end it was her that you chose. I could get you to do whatever I wanted, but then something changed. You weren't just my Toy anymore; I wasn't the only person you were thinking about.
Damn it Sebastian I wasn't suppose to care about you. EVER! And yet I miss you so much. I couldn't believe that you chose her over me. You were my Toy, the one I played all my games with, the one I did all my scheming with. I guess that was the one game we shouldn't have played. I can't seem to forget that summer even now two years later. I said I would never return, couldn't deal with being in the same town as you. I didn't want to chance seeing you with her. That's a lie, I didn't want to even take the chance of seeing you. Yet here I am out of sheer stubbornness stepping off my plane from London where I've been staying for the past year and a half. I remember the last words I said to you. My last shot at trying to make you stay, making you fight with me just to see our fire ignite. God you burn me more than any other but you left. I told you, you were just my toy. I hadn't lied, You were just a toy to me, a toy I grew to love.
So its backto that hateful townhouse where my mother and your father still coexist, who knows how. I only came back for you, for the reason of a letter, an invitation to the wedding of Sebastian Valmont and Annette Hargrove.
Why the hell do I bother?

So obviously the whole Sebastian being killed did not happen and instead Kathryn left, while Sebastian and Annette continued their relationship.