Reality?

I'm really curious about the reality of swing clubs in Brazil. I've read conflicting reviews: some say there are many 'desperate' single men who immediately swarm any girl or couple, which would actually suit me since I want to do crossdressing there. As a white European male, I’m afraid that in a gay club I’d be such a target that I might not even make it out in one piece with dozens of guys swarming me. ​On the other hand, I’ve heard that clubs in São Paulo are full of sex workers, which is not what I’m looking for. An entry fee of 500 Reais is not an issue for me as a European, but I want to know if it’s worth it. What is the actual atmosphere like? I’d rather get involved with a couple or a small group than risk the chaos of a gay club