How to get correctly dressed for a gay male 0rgy?

Good idea to take a shirt and wear shoes and pants so if you need to stop off on the way back to pee or eat, you can go into a business. No shirt, you are usually told to leave.

Have ***-less underwear and lots of leather.

~Aizen

Since an orgy is sex, and sex is done naked, does it really matter what you wear to the location? Just be safe, and be prepared to leave if anything doesn't seem right.