The last time I went, it was for the Grand Opening of Perla, they had a reception area in the lobby and there were snacks and plenty of alcoholic drinks and a live band playing music.
But in order to stay in the lobby you had to take off all your clothes first and hand them over to the front desk lady, then you are free to roam around naked.
There were about like 50 naked guys just mingling about with each other and of course there were plenty of working girls just walking around, talking and dancing, you were free to touch and grope as many of them as you want.
The real bonus is the sex part, the reason they asked you to remove all your clothes up front was because the girls were also going around getting on their knees and sucking off every guy they can. It was one hell of an experience getting a BJ while talking about sports and chugging down beers with your fellow overweight middle-aged pervs in the middle of the hallway, all for everyone to see and cheer on. I must have cummed 5 times that night in random girls mouths before I put on my clothes to leave the building and headed over to the bus stop to take the bus home. I must say it was one hell of a night and I had a good time.