The bathhouse is a place where emotional attachments of any variety become meaningless in a sea of sensation, sex being the overriding framework, without any barricade to having as much sex as possible. Creating, or giving in to, opportunities as irresistible as feeling a new mouth replace the one that was going down on you while being fingered. A glance that does not break off, a tentative light caress, or simply lounging with cock hard and legs spread, are all enough to lead to having sex with a stranger - possibly for the third or fourth time that day. Such pure freedom is incredible, understood by everyone there.
All of whom are men who have sex with other men, a major reason that such places are called gay saunas. That is not wrong, precisely, since a gay sauna is plainly understood to mean a sauna where men go to be completely uninhibited with each other. Other terms do not really hide that fundamental reality, but they do obscure it. Though group sex is equally available at a gay or male only sauna, male only sounds more restrained. Which is not the case as the men who go know, surrounded by other equally aware potential partners. Even a man that has not experienced bathhouse sex yet is nonetheless wanting to, potentially, on that first occasion.
Types of sex do not make you gay, as an opinion. I have only been fucked twice by a man, yet each time was far better than the several times a woman pegged me. For a combination of reasons, including that a real cock is better than any imitation, and that men understand what fucking means. The strangers I have fucked would agree that a man knows best when it comes to riding a hot tight hole, pumping it with a hard cock. Being fucked is fantastic, something that takes a man to do properly. A conclusion that becomes more encompassing when discovering just how amazing men are as partners.
The baths allow men to enjoy sex without restraints, taking advantage of all possibilities that arise. Along with creating those possibilities, knowing that other men are easily tempted in a place where sex is openly available. Men and women are different, something apparent from the fact that there is nothing like gay saunas for women.
I have no personal experience of swinger clubs, though I do know swingers. According to them, not only are there normally couples, but that the man is generally controlling what his female partner does. Though part of this may also be all the single male attention easily becomes pestering at the swing clubs they have visited. Not all swinger places or events even allow single men, to avoid this problem.
A problem that does not exist at the baths, where there are no couples for long in the first place. Male couples that go to the baths share the same fundamental interest, which is having sex with multiple strangers. This is also the fundamental reason why pestering is quite rare, as finding partners is as simple as getting hard watching gay porn, or watching men have sex in front of you before joining in. Conceivably, individual repeat visitors may have never sucked another man, or been fucked. Quite possibly there are also visitors who have never fucked another man, even after attempts to use tempt their hard cock to slide past a ring of incredibly soft yielding flesh. But basically no visitor has not gotten head from another man - and it is fantastic.
Cock sucking is central to what happens at the baths, leading to all sorts of further pleasures. A spit covered cock feels so good rubbing against another man's. Or sliding over the soft yielding hole of the man that has just been going down on you, preparing another cock to slide into paradise. 69 with a stranger is also extraordinary, mouths and cocks merging gloriously - especially when using poppers. Cock sucking has an universal appeal, as broad as men would expect, even if women might not. At the baths, it is very rare to find someone who is not an enthusiastic cock sucker.
After enjoying hundreds of blow jobs while at the baths, the joke that the best blow job in the world is the one you are getting right now is quite provably true. There has not been a single man who hasn't taken all of my pumping hot cum, even before leaving my cock uncovered. None have let my orgasming cock leave their mouth until nothing is left to taste. Oral sex is the foundation on which most of the bathhouse's pleasures are built, and there has never been a visit I have made without any oral sex occurring.
Obviously every man who went down on me wanted to. The same being true of every man I have gone down on. Still, that number does not have a 1 to 1 correspondence. Certainly there are men who made me cum so good in their mouths without my mouth ever sliding down their shaft, and undoubtedly men I have sucked who did not go down on me before or after their blow job.