There sometimes arise debates and discussions around guys showering together theme. In the gym there is usually a large shower room without cabins with several shower heads or with open cabins often by the side of the room so you can spy for other naked guys showering in the opposite cabins. Though some guys do not take off briefs but most strip down taking off all the clothes and showering naked without problems. It all depends on how you grew up, if you for example were an only child in the family or grew up in an isolated area where you did not had many friends to bond with so then you will prefer to be private when using bath or showers.
There were a lot of Elvis songs. I also made out with a bisexual guy at a swinger party. My wife and some other women said it would be hot. That was less gay than the naked Karaoke. I was very drunk. No homo. Both at Burning Man.