While hitching though Europe on my round the world jaunt, I got hired to run a porn shop in Stuttgart (most of the patrons were American servicemen and the owner felt I could communicate). I was pretty successful and he took me too a club he also owned that had live sex shows (except more kinky stuff than has been discribed here, bondage, whipping, urine, etc.) to ask if I would consider being the English announcer for the show.
I told him I was honored by the offer but I said I really didn’t think the show needed any American translation.
Also went to one in Bankok. Australian girl I was traveling with at the time said she wanted to see one. We didn’t stay for much of the show though. She changed her mind when the farm animals came out.
I haven’t seen one and I wouldn’t go out of my way to do so. But if one happened to be happening in a place I was at, sure, I’d go see it at least once to check it out.