On completing sexual reassignment surgery. I believe it was HBO or Cinemax that had a series Real Taxicab Confessions where they would interview people in a taxi. One of the interviewees was pre-op and they asked her if she would complete her transition someday.

Her answer was no. She had seen too many of her friends commit suicide after completing the transition because they couldn't orgasm anymore. That and she liked her penis, thank you very much.

I personally have no knowledge on this matter, I'm just remembering what she said in the back of the taxi.