Gamma

I recently found these two stories by an author known as Gamma: A Shocking Wait and The Girl in the Window, which I think are fantastic, but I've not been able to find any more of Gamma's work. I've tried sending an email, but it just bounces back. Does anyone have any idea where I can find more of Gamma's stories, or similar ones with predicament bondage (or volunteer bondage as it's called in these)?

I've tried searching the library, and there is a story by someone called Gamma, but I don't think it's the same author.

Thank you in advance