I have zero desire to see two men getting it on. Seen it and was not aroused.
I do not find bi men appealing and no I would not date one.
In the two man/one woman scenario the men could be totally hetero. And I find this as appealing as being with one man and another woman or three.
*yawn*
Multiple partners at a time just doesn't do it for me.
Been there, done that and just not my thing. And no, I do not get aroused by watching others having sex (I mean in real life). Been to sex clubs and it was odd to say the least. I was not remotely aroused.