To be honest about it, the woman doesn't even have to be bi. Every couple that agrees to do things with people outside their relationship makes rules, and it's important to follow those rules, lest feelings get hurt. Our rules cover lots of different areas, because we want to know up front the kind of things that would make one of us uncomfortable. When we were looking for a guy to help fulfill my honey's desire to have two men at once, we looked for things like making sure that we actually LIKE the guy, outside the hotel room as well as inside. Another attribute that was required was that he be straight. People can call it homophobic if they like, but I wouldn't feel comfortable naked in bed with a man that is bi-sexual. No offense to you bisexual guys out there, I have nothing against you, I just don't want to go to bed with you. Doesn't matter why, if it makes either one of us uncomfortable, we don't do it. The two men in that bed with my honey are there to pay attention to her, and of course to enjoy the experience themselves. No need for the men to be pleasuring each other, there is a woman there for that. And we're all happy.

So when we are looking for a woman, she could be bi, lesbian, or straight. Either would be fine with me. If she's a lesbian, and wants nothing to do with me, but would be ok with me being there, fine. I would be ok with either watching the two of them exploring each other, or maybe participating only to the extent that both of them are comfortable. If the woman were straight, then it would be a lot like when we have our gentleman friend with us, only both of them pleasing me, and me pleasing both of them. Of course, in my eyes, the ideal woman would be bi, so we can all please each other.

So, to answer your question, I don't rule out any woman that I might meet, just because she may or may not be bi. If she is attractive and likable for both my honey and I, then there are options to be explored. But like you said, it is easier for women to work this kind of thing into conversation without offending anyone than it is for the male side of the couple. For example, the link you provided. In the process of signing up for that group, there is a window for explaining why you want to join the group. Everything I tried ended up sounding awkward. So I saved the link, and will have my lady sign up for it instead. It will sound much better coming from her than from me.

I feel like most people would just look at me as a lecherous old man trying to get two women in the sack together. And I won't deny that part of it. But I think that they might miss the bigger part of it, which is the two of us wanting to do something together. That's the really important part of this. Experiencing this together.