This was a topic for conversation several times in my marriage. Both marriages. One husband thought no problem! The other .. very uncomfortable because he did not think it was possible. Maybe because we were friends (with sexual tension, I suppose) first.
Now I notice that even more. I have two male friends. My UNson-in-law and my buddy from 25 years ago, Eli. Eli's daughter and our daughter were the best of friends for many, many years. When he and his wife divorced, we stayed in touch with both of them. He is/was very comfortable being a threesome with us. Weekly, almost.
For Valentine's Day this year I suggested to one of my South Maui Merry Widows that we should go to a romantic French restaurant in Lahaina. So far we have EIGHT of us, and one husband willing to brave that harem.
Maybe I'm just old fashioned in my thinking but I'm not comfortable making friendships with a single man. (Except Eli but he has a fabulous lady friend I adore). I do not want sexual tension.
I really do enjoy my lady friends! With a group of fun and enthusiastic friends ...
Or just two buddies sharing wine and camaraderie ...
Or just one for coffee and conversation!