Saying this as a compliment, and I hope you take it that way, but this is by far one of the most eloquent erotica novels I've ever read.
Your descriptions both in the physical nature of your female character and the...dirty portion are phenomenal. And it wasn't raunchy. Used a lot of varying language for parts so you weren't dropping the f, c and p word constantly. That gets annoying.
And I love the set up. There are two kinds of writers in this genre. Ones that get right into it, and ones that build the story up, make you attach and care about the characters. This was the latter, and that's the type I prefer. It's a size worthy of the price, compared to what's out there but it has a background that serves as a lure, an enticement so when we finally get to that portion we're all waiting for it seems all the more worth it. Incredible.
I'm not sure how long you've been at this seeing as it's your first publication but you have a style and flow that a pro would be jealous of. I wonder and not trying to call you out but I have considered you have other works on here under a different name.
Sorry. Excellent work all around. I am really looking forward to your next piece. And please use that same girl for the cover. ;)