I have no idea how to classify my sexual and romantic feelings.
Half of my loves have been female, and half have been male. I experienced sexual desire for a for the first time when a female touched me at the age of 17. All the sudden I felt the desire to have sex with one of my male loves when I was 20, so I did it. But I've never really been all that sexually attracted to the human physical form. I have had sex with a very strong, generally quite attractive man, 2 chubby ones, and a very skinny one, and I was most attracted to one of the chubby ones for whatever reason, and most in love with the skinny one because he is like a living encyclopedia of world history (and also lots of other reasons, but that is a particularly notable one). One of the chubby guys and the skinny guy both have this very amazing feeling when I am around them and very nice look in their eyes. I think I like the mind more than the body.
I am however extremely devoted to whoever I am with at the time, though I'm not entirely monogamous. My current bf (skinny one) seems to feel similarly. However, I am not really romantic. I like to talk about our special interests together, but I am often bored or not able to think of how to respond when he talks about love, compliments, marriage, whatever. I'd rather just talk about history and genetics and other scientific things and wander around in the woods and stuff.
But I am with him constantly. We both get really weird about spending more than like 5 hrs apart, which is what I mean about devotion, I guess. We can have sex with other people and it doesn't really change anything, but whoever we f**k, we are scarcely less than 10 feet from each other for more than a matter of hours. Not really sure what is up with that, since most of that time we are pretty silent. But it feels good for some reason. It is very nice to be next to each other, even if we are not interacting at all. It is simple.
I don't really get all the crap about why cheating is such a huge deal and why people should get married and why relationship talks are important and whatever. But I like having someone to f**k and be around like most of the time. So whatever that is.