A few years ago in a college Sociology class I came across this study and it altered the way I viewed sexual orientation in a way that put me in line with the Catholic Church, long before I even knew where the Church stood on the subject.
It's a short article, but if you don't want to read it here's a summary:
Twin boys were circumsized in an unconventional way that included burning in stead of cutting. One of them was botched so badly that there was little trace of a penis left. The family decided to **completely remove male genitals and raise him as a female **under the guidance of a doctor from Johns Hopkins, who believed sexuality was learned and not something that came naturally. The child was dressed, treated, and raised as a girl but wanted to play with other boys, dress like a boy, was attracted to girls, and even came out as "lesbian" when the child hit puberty. At that time he was told that he was born a boy.
(For reference, here's what the Catechism says about homosexuality:
The number of men and women who have deep-seated homosexual tendencies is not negligible. This inclination, which is objectively disordered, constitutes for most of them a trial. They must be accepted with respect, compassion, and sensitivity. Every sign of unjust discrimination in their regard should be avoided. These persons are called to fulfill God's will in their lives and, if they are Christians, to unite to the sacrifice of the Lord's Cross the difficulties they may encounter from their condition.
Homosexual persons are called to chastity. By the virtues of self-mastery that teach them inner freedom, at times by the support of disinterested friendship, by prayer and sacramental grace, they can and should gradually and resolutely approach Christian perfection.")
*]What would you do as a parent in this situation?
*]Do you believe in Nature or Nurture? (God-given vs Society)
*]Do you think sexual orientation is a choice, or something we are born with?
*]Would you have accepted this person as a "girl" who liked girls?
*]Would you have only accepted this person as a "boy" who liked girls?