Sex parties... the good and the bad

We attended a party like that. They called it a gangbang party. I have to guess 10 guys to the girls who actively played. I was a bit hesitant as I didn't know how I would handle sitting around as my wife was playing. She fucked 4 different guys at this party. One actually asked me if her could fuck her. It was fun as most the guys were standing around the bedrooms and watching. There was one guy fucking this girl and his condom broke. He told all of us in the room that there was a mess coming when he pulled out. Dam! he was all of 8 inches and thick. His cum just poured out of her freshly fucked pussy. I should have, but didn't, slip in there and cleaned her up. I was to nervous.
The vast majority of parties/clubs frown on bisexuality, unless it's a specifically designated "bi/Trans Night" or "Anything Goes Night".