I like the idea of this race, and I like the character overall. I haven't read through all the sex scenes yet, but the framework of what I did read was solid. To be frank, the next thing you need to do to really improve this is (and I do not mean this as some kind of put-down, I'm being completely sincere) to polish your grammar and spelling skills. You simply need to become more technically proficient. If you are not a native English speaker, you really should be proud of how well you have done so far. If you are a native speaker, there's still no reason to be embarrassed; I have graded many college papers that were far worse than this. You're currently well above average, and I'm sure you'll get better with practice. Most folks aren't even clever or creative enough to create an outline of a story. I'm sure you're just a bit rusty on things like punctuation.
The concept is solid. I really like it. As it stands though, there's a mountain of tiny errors that anyone who hopes to critique this will have to go through before they can even really comment on the structure and style of the writing. I'm doing what I can to help because I really do like this character and race. It's just a bit of a diamond in the rough, and it's going to need some polishing. Just don't get discouraged, and chip away at it a little whenever you get the inclination and opportunity.