I already commented on this fic in the challenge, but damn if this won't leave a lasting impact on me. The imagery is perfect and the narration is clever. Despite the fact that we all know Fay has issues with his past, and we all know about his twin brother, I did not even guess the ending...
...How did I not see it coming?

I did spy one mistake you missed:

“I think she really liked what he saw." In the first chapter, the woman changed sex mid sentence. ^.^