LOL Here's a secret: I wrote the scene for What Happens In Vegas that you mentioned. Rae, who writes that story, is my best friend and I've helped her out a little bit with her story here and there seeing as she's a) a pretty new fan of A7X and after hearing me talk about them and reading my stories finally converted to their softer songs and b) she's not really a sex scene writer.
Thanks for enjoying! I just ripped it off of there with her permission and changed details and names and so forth.