It’s a bit of a long one, and there’s some backstory, scroll to —- to go straight for the sex!
As a teenager I never thought too much about my sexuality – if I did, I assumed I was straight and that was that. I definitely liked guys, there was no question about that. I could appreciate an attractive woman, but I didn’t have any particular romantic feelings in that direction.
When I started watching porn however, it was only really girl-on-girl that got me off. I had little interest in looking at cocks, and still don’t get off on watching seemingly endless blowjobs (unless it’s guy/guy, but that’s a different topic entirely). Occasionally my masturbation fantasies would spread into girl on girl, never any girl in particular, but enough to spark my curiosity.
When I was around 19, for a while there was a girl in our pub friendship group, G, who we knew was bisexual. Not entirely sure how we became friends with her, but for a few months she became a fixture of our nights out and was always a good laugh. She was attractive, slimmer than me with big brown eyes and long wavy brown hair, smallish boobs and maybe two inches or so taller than me, about 5’8” IIRC. For info, at the time I was slim but curvy, big boobs and a bigger arse, also with long wavy brown hair.