Has anyone had a threesome?

My boyfriend and I have always joked about this, but recently a friend of his (who is bi) told him that she thinks I am hot and said something about a threesome to us. Has anyone tried it? I’m not against it really but I would also be nervous too.. it’s something I would be open to trying, and the girl is a good friend and is bi so I mean it’s a good person to do it with😂

For me, half of the nervousness was trying to find and ask someone, but this girl would be perfect for this if we were going to try it, but I’m still on the fence if I should take the chance or not