Dear / Good morning / Good evening Goddess / Mistress Aido Akida,

Thank You for taking the time to consider my application. I hope my humble message finds You well. I am particularly interested in meeting You for the following reason(s): X, Y. An opportunity to serve You would be an honor.

My name is X, my pronouns are X, Y, and my roles are (Submissive/Slave/Fetishist). I am X years old, and I currently reside in X. My profession/studies/titles are X, Y. In my free time, I enjoy doing X, Y. I am including some pictures with my application.
(Preferably. Always modest, casually dressed, no fetish gear or nude photos.)

As far as BDSM is concerned, I have X / 0 years of experience. I have had sessions with other colleagues of Yours, namely X, Y. I particularly enjoyed / did not enjoy certain aspects of those sessions: X, Y. My kinks and fetishes include X, Y (I will not list any of Your taboos). My limits are X, Y. I understand and fully respect that not all of them may be explored during a first session. My medical conditions are none / X / Y. During our session, I will arrive clean or I will consume only X, Y in moderation. My most recent STI test was on X (no longer than three months ago).

My preferred dates for a session are X, Y. I understand that You do not host, so I have the following proposals for our meeting: X, Y. Please let me know if any of these arrangements work for You. Once you approve, I am happy to provide the agreed deposit and will humbly follow Your instructions. It would be a privilege to hear Your voice, or better yet, to have the honor of a video call with You.

Thank You kindly for considering my application. I eagerly await Your response.

With humble / kind regards,
Your name / Your devoted slave / Your secret admirer, X

(Raise your chances) 

P.S As a token of appreciation for Your time, I am offering You a present: X,Y (You are welcome to check my Throne Wishlist. Flowers as Black Calla Lilies, Dark Red Roses, Black Tulips, Burgundy Dahlias, Amaryllis, Protea. Pralines as Fassbender und Rauschand, Reber Mozart Kugeln and handwritten cards are always appreciated). I wish you all the best and thank You for Your work.