This happened a few years ago when I was 20. My best friend, Sam, had been with her boyfriend, Ben, for about six months. Sam and I had kissed a few times when we were drunk, but I'm straight and thought she was too, so it never went anywhere, but one day she told me that she and Ben had been talking about inviting me for a threesome. They both that that I was cute and wanted to change things up, and I figured there was no harm in trying it once.

Sam is gorgeous. She is mixed latina and white with long curly black hair, tan skin, and shocking green eyes. She also has a perfect hourglass figure, so I wasn't sure what Ben wanted me for. He was also cute enough, with high cheekbones and little button nose that made him look young and innocent, but he had one of the dirtiest senses of humor I've ever encountered.

I found out why they needed a third pretty quickly. I love giving blowjobs, and I went wild on Ben's dick. When I watched Sam do it, though, it seemed like she really really didn't want to, holding it like it was expired food and licking it cautiously. Ben only fucked Sam for a little bit and it seemed like she was only a little bit excited about it. I thought she might just be nervous about having a threesome, but when she touched me she was suddenly extremely turned on. I had fun with her, too. I loved touching and sucking her huge tits, and she was the first (and only) girl I ever fingered, which I thought was great. She got me off with her hands easily while Ben teased and sucked my nipples, which is an experience I'd love to repeat. Ben was a decent lay, too. He could switch between sweet and gentle and hard and rough, and I came again riding his dick.

It's probably obvious where this is going, but Sam is a lesbian and just needed this experience to fully realize it. She dumped Ben, who tried to get with me again like a week later, but I didn't want to make things weirder than they already were. Sam stayed my best friend to this day, but I am, in fact, straight, so we never hooked up again, and stopped kissing when we're drunk. But I still like to tease her that I'm the one who "turned" her gay.