Had a threesome with my straight mate and his gf
Yesterday me (18M) and a bunch of my mates + a couple girlfriends were having pres before going out. One of my close friends (call him Sam) and I ended up going together, and his girlfriend came later.
Long story short, I forgot my ID and he couldn’t get into clubs anyway, so while everyone else went out, we went back to his place with his girlfriend.
For context, his girlfriend is kinda controversial in our group. I don’t really mind her, but she did try to get with me before they started dating, so it’s always been a bit weird.
We were all drinking and smoking, and at some point things started getting more open. He ended up telling me he’d hooked up (just kissed) with one of our other male friends before, which threw me off because he’s always said he’s straight. (Which I believe because lots of people kiss their friends as jokes.)
Anyway, we were all pretty crossfaded and one thing led to another and we ended up having a threesome. It felt pretty experimental and not exactly smooth, but there was stuff between all three of us and we were kinda just going with it. I topped him. We all kissed each other. We took turns fingering the gf. But he couldn’t get hard until I stopped topping. And then took ages to cum. (I was trying to go to sleep after I stopped).
Afterwards he basically said it was just experimenting and something he might do again if the moment was right.
Now I don’t really know how to feel. I don’t even fully know what I am half the time, like sometimes I feel straight, sometimes bi, sometimes gay, sometimes nothing. But I do know I don’t want to be the guy someone just experiments with and then goes back to being “straight.”
At the same time I feel like if anything like this keeps happening I could catch feelings and mess up the friendship even more than it already is.
We’ve all agreed to keep it a secret, so it’s just between us.
Any advice on if he’s actually straight? He identifies as it. Also on the whole situation?