Fuck buddy wants me to watch him fuck a guy

So I have this fuck buddy. We are friends but we also have sex, so friends with benefits. He sleeps with other people and so do I. We have safe sex. He does also sleep with men. He says he's not attracted to gender, he's attracted to auras, energies, and spirits or whatever hippie shit he's talking about. He basically felt like our spirits had a connection which is why he's sexually attracted to me and likes my aura.. Idk. He's obviously a hippie. Anyway he recently asked me if I would be willing to watch him and his friends Tristien have sex. It's just one of Tristiens fantasies. I honestly don't know why I agreed to do this. The only time I watch 2 guys have sex in porn is when it's anime. That shit is hot in anime but then when it's real something it's like... Ehhhhh... Just wondering has anyone ever done that. Not even saying with 2 guys but just watched people have sex? If so, like, how was it😂