Most of dA is liberal, so I think this is a relatively safe topic, but if not, apologies to any passerby who are uncomfortable with it.
The reason my mother is the most amazing mother ever is because of her complete understanding and kindness when I came out of the closet to her just about an hour ago. Though the subject of who I'm attracted to isn't the most pressing issue in my life at the moment, it had been coming up increasingly often, and since I just turned fifteen, I decided it was time to be honest with her and tell her directly. I'm actually crushing on a particular girl right now, and when I told my mom about it she was unbelievably wonderful about it, focussing first on empathising with me, then slowly turning to the actual subject of being gay. If anything, she was concerned about my own comfort with who I am. She discussed the possibility of helping me to look for a local community, though communities aren't really my thing. She spent quite a while talking to me about it, and reassuring me, and even talking about the girl I like. I was very nervous before telling her, but afterwards I felt almost completely at ease.
In terms of actual expression of emotions, this turned out to be one of the less painful experiences for me, even though it took me a while to come to terms with it enough to tell her. She's a wonderful person, and I absolutely could not ask for more. I'm not going to be telling my father or grandparents, but it did somehow make me feel better to have confided in her. And certainly a lot easier to discuss these things in the future.

I'm not sure how it makes me so happy, but knowing how comfortable she is with it, and how supportive she is, certainly helps. And no one probably actually wants to hear my ramblings, so I'll just end by saying that I was really thrilled to have such a positive response from her.
