There were several peers of mine in middle school that used to go around calling people gay. I've had sex with all of them. I just looked up their name in the yearbook, found their social media page, and messaged them. I gradually worked into the conversations that I was bi, sent them "accidental" nudes. From there it was just a matter of finding the right circumstances. Hiking works really well, take off my shirt, take a break somewhere in the shade, hand on the leg. You know the rest. Everyone's bi. It's been experimentally proven to my satisfaction.