The first person I came out to was one of my teachers at college. During the first class of the year with him he said a little about himself and his background and effectively outed himself by referring to his partner with the male pronoun. I came out to him 3 months later, he was great and gave me all the time I needed to talk and ask questions. My answer could so easily have been sibling though, I wanted to tell my sister but I never managed to find a moment when I was sure we wouldn't be overheard.
A good friend, in a late-night computer chat. In fact, I was one of the first people he came out to, 7 years before, and in my (at the time) internalised homophobic mood, I gave him a hard time over it (yeah, not proud of that...). But when I finally was ready to come out, it felt appropriate that he'd be the first to know. He admitted it suddenly made tons of sense in retrospect xD
I came out to my old supervisor who is now my friend. She is also a lesbian so it made it a little easier.
A guy on the internet, because I was really scared of being judged by people I knew, it kind of helped me get comfortable with the idea of coming out. My mom was the first I told in person, she was shocked, but okay with it.
The first person I told was my best friend. I felt like it was really important to share that information with him. It all went well, we ended up doing a few naughty things but nothing more than that.
In a way, I first came out to my first boyfriend, on our first date. Barring that, it was a friend of mine online, followed by one of my best friends from high school in real life. Both took it pretty well - I believe there were hugs involved.
I told either my therapist or my best friend first. Both on the same day. I had multiple conversations before with both of them where they questioned if I was transgender and I denied it, so it wasn't much of a surprise.
Both of my best friends told them I was bi by texting but told them I'm gay while walking around town.
