Okay, so I can say that my story's main character, Ava, is going to be interested on girls. Not only that, I can say that entire races are basically LGBT. Again, no name on how the races are named, but I will say that they're based on animals. There are Humans (yes, there are humans), ants, lizards, birds, and fish races. There are other races, but I'll mention the main ones.
Let me start with the Human race - Just kidding, we all know how it goes.
The ant race - Just like real ants, the ant race in my story have a queen that needs to mate with a male ant (no incest in my story) to produce workers and soldiers. Doesn't sound very LGBT, right? Well, that's when I took some creative thinking and thought to myself, "well, since only the queen can create eggs, it won't matter who the soldiers and workers sleep with, right?" That's why I made the ant race completely Bisexual, but the queen is expected to mate with a male. By the way, like many ant species in the real world, the soldiers and workers are all female. There are males, but they don't do....much.
The lizard race - I based them on the real life New Mexico Whiptail Lizard, also known as (interestingly enough) "the lesbian lizards". The lizard race in my story are all female, and capable of reproducing without any male. Well, technically, they could reproduce with a male, but it's always another of the lizard race. Holy crap, it reminds me of the Asari from Mass Effect, except that the lizard race wouldn't take anything from the father. No males can be born among them. Anyways, they prefer other females, since they see no reason or need to sleep with a male.
The bird race - I based it on ravens, and believe it or not, they can bond with someone of the same sex. So, that would make them Bisexual. I mean, a good number of bird species form same-sex pair, so it shouldn't be that much of a surprise.
The fish race - Oh man, this one is going to be a surprise. I combined clownfish, wrasses, and hamlet fish to create this race. Therefore, they can change from male to female, female to male, or become both. Therefore, it doesn't really matter who their partner is. I guess the focus would be if they love that person.
Here's the link to it, if you're interested:
(Sorry if I made this too long)