Dear Sebastian,
I'm writing to tell you something I can't bear to tell you in person. To be quite frank, I'm afraid of how you'll react. I don't want to see how you react, nor do I wish to hear about it afterwards. I do not wish for you to reply, I just wish for you to know.
This particular thing has been slowly gnawing away at my heart and soul and I can't keep it a secret any longer. Sebastian, I hate keeping secrets from you, I'm always worried that you already know and you're privately laughing at me. I'm sure you know about this already but I would love it if you knew for sure and I knew that you know. The guilt at keeping a secret such as this is awful. But now I can finally get it out there.
I've never said anything like this before but I'm going to try my best. For you. Sebastian, you are both my butler and my demon. And in return, I am your master and your meal. I am aware of the fact that you think of me as nothing more than a human, nothing more than dirt, but I'd like for you to know my exact feelings towards you. We belong to each other, in contract and in duty. I believe, while being mindful of our positions and class, that I have inadvertently and unintentionally fallen for you.
When I needed a savior the most, was when I first met you. I wouldn't call it love at first sight, this letter may be sappy but not that sappy. You were the one that came for me, you, a demon, were the one to rescue me, to take me away from my oppressors. You were the one who came and the one who then stayed by me. Though everyone else in my life has lied and manipulated me, you were always by my side. You took care of me and helped me in all my endeavors no matter how inane or crass you believe them to be. You're diligent and loyal, you're all one could ever ask for. It's impossible to spend almost three years with you and not develop feelings for you. You are perfect, in every way possible.
I know what you are, and most humans would be scared, or at least nervous around one such as yourself. I know what you are and nothing will change that. I know that you can never love a much younger human but I find it necessary to tell you this.
I am not looking for a reply, written or otherwise, I am simply looking to tell you about this as you are the only one constantly by me and the only one I can count on to stick with me and the only one I can confide in, should I feel the need. You are the one I will always look to for the truth
Sebastian Michaelis, I love you, forever and always. You are mine and I am giving myself up to you. You have permission to use me and play with me in whatever way you feel necessary.
Forever yours,
Ciel Phantomhive