"Not necessary?" He was perhaps a little surprised I had such a strong opinion on it, but he didn't argue. It's not like he'd feel that throwing a woman into a relationship he'd have would be anything he'd want. He's very sweet in his love for his little sister, and has several close female friends, but it doesn't strike me that he'd even think of having sex with any of the young women he's friends with.
Added: The comments on Kris' blog are getting better and better. The original thing that got Kris going was women complaining that a m/m romance had lesbian supporting characters. I can understand that some women don't want to read f/f sex scenes, because it's just not their thing. I've seen women accuse other women of homophobia because they don't want to read m/m romance. I think my response to that was, "That's fucking ridiculous." If someone knows she just likes straight romance, and the gay variety doesn't work for her, that's fine.
But gay romance fans having issues with reading a book with lesbian secondary characters? It's clear in the blurb that they're the one hero's friends. If the readers see that, get the book, then complain about the lesbians, it's a WTF? for me. Seriously, I think that that's homophobia. I've had my share of issues with lesbians, although they were very different sorts of issues than that. But what sounds like being icked out, from people who say they're "oh so gay-friendly"? There's a big disconnect there. This is a science-fiction book, but if you know real-life history, there have been times when lesbians and gay men were allies -- to various extents now, and in a large number of organizations. A lot of lesbians did much to help during the AIDS crisis. There's more common ground than some might think.
I got used to editing menages, and now I read them from other publishers, too, but I want to know that that's what I'm getting. I still read straight romances -- I don't especially get why some women are like, "I only read m/m romances now." I guess I get that in a way there's more of a sense of equality, especially with a romance; and freedom of agency. I like stories with strong women characters, though, if they're not obnoxious. Some authors write straight romances with strong but likeable heroines. I've read my share of lesbian romances, too. I'm not that into the politics and all the discussion and analysis of emotions, but the sex scenes can be hot.