I'm in the middle of reading Correcting Kelly. On the whole, I'm enjoying it a LOT! But I have one quibble that might be easily avoidable in future stories.
My brain tends to... take shortcuts when processing proper nouns. Having two of the main characters possess names that both start with the same letter (Katie and Kelly) makes it hard for me to read. I frequently have to re-read passages because I have lost track of who is doing what, and that takes me out of the erotic flow. Having both names *end* in the same sound just compounds the issue. (As an aside, one of my favorite non-erotic stories is Orlando Furioso; it features characters named Bradamante and Brandimarte. Argh!)
I'm sure that not everyone suffers from this issue... but I'm also sure I'm not alone. And it's relatively straightforward to avoid, once you're aware of it. Just a suggestion.