Ok so, I'm only 21. I was dragged out of the closet at 17 when my dad interrogated me about some emails. That wasn't very much fun. My mother straight up asked me one day. That was tough, very serious and emotional conversation. But I have to say, however weird it was how my parents came to officially know about me, I'm very grateful that it's out in the open. For me it was difficult even after they knew because I knew they didn't approve. It took a long time for me to be able to be open about it. Part of that was fully accepting myself. Anywho, the point I want to make, which is a reiteration of some of the things already posted, being open and honest means being able to allow your loved ones to be a part of your life. When you have to hide such a big part of your life from your friends and family it really hinders you and your relationships. Most parents want to see their child happy, they want to know their child's husband or wife, they want to witness your life. Now, I understand the religious thing, and that can get tricky. But regardless of any beliefs they have, your choice to be open and honest with them, to truly share your life with them, that choice should not affect their love for you. It will probably make things weird for a while. But I really couldn't ask to be happier with my parents. They still don't like it, but I don't have to hide it. I can actually talk about my life with them now. I was never able to do that growing up. I feel so much freer than before. It hurt me to think that my parents would never see me with a life partner, that I would have to completely hide that side of myself and my life.
My mother expressed to me during our conversation that she knew I was my own unique person, that I'm going to do what I'm gonna do, I'm gonna be who I'm gonna be, she can't change that, and she also cant change how much she loves me. My dad hit a turning point when I told him that I wasn't comfortable being at home much less bringing someone home with me. He didn't understand until that time that his relationship with his son was far more important than any beliefs he had and he learned how to convey that to me. I have a great relationship with my parents now. They are getting to know my boyfriend pretty well and things are really awesome. I've seen better and I've seen worse. Hopefully you will have at least as good an experience with your folks as I have with mine. The way I would approach it (if I ever got the chance to) is to let them know that you want to further your relationship with them. You want to know that you can comfortably talk to them about anything in your life with unconditional love and understanding and without judgement. That's what your parents are for. To help you through your life in all aspects of it. Not just the things they like seeing or hearing about. Another reiteration is that you need to have the self acceptance and self confidence to back you up. Just let them know in a matter of fact way that you are not interested in women romantically. You love them and you want them to be a part of your life. You want to be able to share things. You want to be able to show them how happy you are, and what it is that's making you so happy. Anyway, I think I've rambled enough. Good luck brother. Remember that you have a world full of gay family that will accept you and love you if for some ungodly reason you don't get that from your parents.