|I love where this story went. It was very interesting and I especially liked the ending.
I admit that I was a little confused when Tanya's smile was "not a nice one." Then it occurred to me that Trevor had not killed his parents. Tanya did. In addition, the whole exchange about cowboys becoming cowgirls was thrust into a whole new light when the twist was revealed. Clever stuff.
The only thing I would change was instead of telling us that Tanya wanted to make the cowboys into cowgirls just show us through dialogue. It was a good opportunity for more communication between Tanya and Trevor. Just an opinion though as I adore dialogue.
And one other thing that might sound weird. At the end, Sondra is communicating with "Trevor" and then refers to "him" as Tanya. Without a second thought, Sondra has accepted Tanya as the girl she is despite her biological gender. In the narration Sondra even says "the girl's face" (there should be an apostrophe there, by the way). I found that incredibly... respectful of Sondra in regard to Tanya's transgender situation. It was very respectful and I appreciated it from Sondra especially in contrast to Velma's attitude toward Tanya's situation.