What smurfy said.
But then again, you never know what (or who) is going to go down in a gay porn palace. I don't mean this little shops that sell videos. But those kind with the dark hallways and video booths. One of the most disturbing things I have ever seen in there was the first time I witnessed gay guys "sounding" each other. Whew.
Sounding is where you take a glass rod - thickness varies on your experience level - and you slide it down your ueretha. Then you either hook up an electrical device that pumps a small current down the glass rod causing intense mini vibrations. Or you have someone use a small metal hammer and tap the rod until they pass out. It is painful to watch the insertion. I have seen people using 8 inch rods and sliding up all the way down 5 inch cocks. Just my luck I would try it, fall down and the glass rod shatter in a dozen pieces while still in my cock.