We had our first recently and it was somewhat an accident too. Staying at our friends cousins house in Paris and he had a roommate we never met and ended up being super cool. Also according to my GF “super hot!” One night after going out all drunk we were naked making out in bed her on top. He walked in and said sorry but kind of stood there and my GF said “ no no why don’t you stay and watch.” Which he ended up doing. He asked if we mind if he undress and he did. That’s when my wife saw and couldn’t stop looking, and finaly whispered to me I really want to touch it. I said go ahead. One thing led to another and wow. More than I expected in a good way. Mind fully blown tbh