I think of myself as pretty solidly heterosexual. On the Kinsey Heterosexual–Homosexual Rating Scale, which rates from zero for exclusively heterosexual to six for exclusively homosexual, I would probably rate myself as a one, defined as "predominantly heterosexual, only incidentally homosexual."
Other than the two girl-on-girl porn scenes I did when I desperately needed money, I have never had a lesbian sexual experience. I've been hit on by women but always turned them down.
However, I've always had ménage à trois fantasies: two men with me or another woman, a man, and me. Now that I'm married, I'm less inclined to the two-men variety, although with some exceptions. I could definitely go for Daniel Craig, my husband, and me. (The men, of course, would be strictly hetero in any situation.)
I still would love to do a threeway with my husband and another woman, but he's never gone past the starting gate on that one. That would still be a primarily heterosexual encounter in my mind, but I could see a woman and I doing some things with each other to tease and turn on James. And I would like to watch him fucking her, although he thinks that's very strange.
On occasion I see a woman who, for some reason, makes my motor purr.
This woman made my inner lesbian come out of her coma. I could really get into her I think, particularly if I was the dominant one. I showed her picture to James and he was just sort of "meh."
Well, there's always a fantasy version of her available.