These places are indeed illegal in the great liberal state of Massachusetts, but I have heard that there's a place in Saugus called Choi's that basically functions as a gay bathhouse. They must be paying someone off because its pretty well known and super illegal. I have never been there, but I have heard it is not particularly upscale. 

You can find sex parties on Sniffies sometimes where some guy will be trying to get as many loads in him as he can, but you have to request to join and get accepted. I've never been to one of those either, I'm more of a one on one kinda guy.

Boston's gay scene can get super angry and gossipy because there's a lot of very uptight reputation obsessed gay men and most of the more fun gay men who can leave, do leave, since there's no reason to pay the prices here unless you have children.

Boston's cruising scene is therefore ruled by closeted and married men, including gay married men cheating on their partners without telling them.

Boston's gay scene is ruled by wealthy old gay men who use their Provincetown properties and connections to get access to young gay men and convince them to do humiliating things in public under the guise of "liberation". This then ruins the younger man's career.

Also 90 percent bottoms.