Is it strange that my boyfriend and I like to add a third person sometimes?

My boyfriend and I have recently gotten interested in having three ways. The first time we weren't into the guy so we assumed three ways weren't for us. Then I got curious again and suggested we try again with someone we for sure thought was attractive. We did and it was better and now we are open to the idea of having a three some every so often! We talked about boundaries and every thing so we're good to go in that department. This wouldn't be too common since it requires too much time and effort to find someone to join us lol.

We also went to a gay sauna together too and met a pretty attractive guy together there. We both agreed we liked the experience and wouldn't mind going again in the future.

We still consider ourselves a closed relationship BUT we still like the ocassional 3 way romp etc and will only do this when we are both together. However I feel like others think this is wrong or a bad way to handle a relationship. There have been so many negative views when a gay couple starts to become a bit promiscuous.

Is this really bad for a gay couple to do? Does society really look down on this monogamy-ish relationship? I honestly don't know many gay couples so I wonder if this is even common? Does this spell doom and gloom for an otherwise healthy relationship?? We are both in our early 20s. Thanks for commenting!