I seriously doubt it. It's another one of those things where the vibe isn't right. I tell her often enough that I want to watch her suck other guys of and this kiss her with their cum in her mouth. I tell her how much I want to eat her pussy after a stranger has filled her with cum and the fill her again with mine. She knows that I am interested in a threesome with another guy, but she shows and claims to have no interest in making it happen. MMF sex is the only dirty talk when we're fucking and it makes her super hot, but that's as far as it goes. She once asked me, not as an offer but as a way to understand my intentions if I would also be interested in a threesome with a second woman. My answer was that I prefer the third to be a second man.