What should you do if your son is gay?

There's nothing that needs to be done. He's your son regardless of his sexual orientation. Continue to treat him as your son.

Ask him questions, accept his answers and be as understanding as you can. and most importantly support him just like you would if he were straight.

Love him, let him know you love him; accept him; treat him like you always have and would if he were straight; his sexuality is about as important as his eye colour: not at all. Some people might suggest getting him into sport or seeing a psychologist or something. Sportiness doesn't affect sexuality. Psychologists can't change people's sexuality.

40% of teenagers who try to kill themselves are gay. Your son needs your love and support; a lot of people will hate him, don't be one of those. Help him learn to ignore the idiots who'll dislike him, let him know that he is loved and accepted. It might save his life.

Love him. Cherish him. You created him and he is just as he is supposed to be.