first experiences that you did to know you were bi

Early 80s I was with some friends drink.ing and smoking. 3 guys and 2 girls. The talk turned to sex, we got the girls to kiss then we tried to get them to take their tops off. They wanted us guys to kiss, we didn't. Soon we were all naked. The girls fondled each other's tits. One girl said she would suck all of us if we sucked each other first. I said no way. One girl grabbed my friends dick and asked if he would do it.
One guy had a bigger dick other guy was bigger yet, we were full hard. One guy went down on other for a min then moved to suck me. He started and I knew I'd cum quick so I pulled his head up. Then he started with other guy. The girls wanted to watch him swallow. The guy came quick and other swallowed it. I went down on the biggest dick guy for a min and it wasn't too bad. The girls licked each other for a few. Each of us fucked both girls.
It was damn exiting but I've never done anything like it since and don't want to. It was fun tho.