>>2045597Most BDSM clubs aren't actual businesses like strip clubs with their own buildings or anything like that, though I'm sure that some do exist. It's usually more like a book club, or some other hobby club, where someone will host the meetings at their home or some other location, though there might still be just one dedicated meeting place.
They're clubs for people who are interested in BDSM and similar interests to meet other people with those interests. How much sexual activity that goes on at one depends on the club. It's entirely possible and fairly common for no sex to actually happen at meetups at all and it's just for people to get comfortable, meet people who share their interests, and talk about things that they'd never get to talk about normally.
Some clubs are open to whoever wants to join, some require you to apply or have a reference from somebody who is already in it. Generally, the more open the club is to strangers, the less likely it is that they'll actually be having sex at a meetup. Some clubs, usually the more private ones, might have some special events for people to actually do that sort of thing, or it might be up to people to get in touch with people that they're interested in to meet up on their own.
Basically, it's like any other club where you go to hang out with people who share an interest, not some sort of massive sex party. Sex parties are an entirely different thing. If you're looking to meet someone who is interested in embarrassment or exhibitionism, it's actually a pretty good place to look even if you aren't interested in any of the stereotypical BDSM fetishes.