Just like that?! Come'on. Unless the guy was so in love with becoming a woman, you'd think that loosing a bet would be a little more dramatic. Also, there are better ways to craft first-person perspective in stories without the repetitive usages of "I" at the beginning of nearly every sentence. I might have an example or two in my gallery(although I'm a mostly third-person writter), I could direct you to some decent examples of first-person tg if you're interested.