I originally mentioned this story in response to /u/Throwaway72569's recent post, and he suggested I copy/paste it into a new post for others to read. So here it is.
Advance warning that it is a story involving my brother, and contains almost-incest.
I'll need to explain a few things first I think.. so let me get all of that out of the way.
First of all, my brother (John) is 2 years older than I am, and we were always fairly close. Usually if one of us had a friend staying over, the three of us would hang out together until bed time, at which point we'd separate.
Secondly, I've always considered myself to be bisexual, and never made any attempt to hide that. My family has always known, but my friends not so much. It was never really something I felt the need to talk about. It's just always how it was.
So to the story:
Jane was one of my best friends growing up. We were pretty much inseparable. I always loved her like a sister – again never even had to think about it. There was a phase I went through when I was around 17/18 when I started to fall for her pretty bad, but I got through it without anything of note occurring.