Loved this story and if this was your first, then I am in awe as your skills in describing both the build-up and the actual sex was superb.
Also, I am glad that you chose to feature Kiernan Shipka in this story of yours as there can never be enough of her, in my opinion.
Now, while I personally prefer stories that feature an original main character, I didn't mind that you chose Jon Hamm as the male protagonist as the "daddy kink" aspect was hot.
I also appreciate that you featured some female on male rimming in this story, a kink that is surprisingly rare when it comes to celebrity fiction.
Anyway, let me end this with saying that I really enjoyed this story and I hope to see you write more as you have talent!