Changing

I fell to my knees, clutching at my stomach. Acute pain in the abdomen and the throat could only mean one thing - I was thirsty, and exceedingly so. There was no way I could possibly keep control over my genetics if I was this thirsty. I could already feel my eyes changing color. They would probably be a mix of orange and murky black by now, but that was a hell of a lot better than silver.
I shuddered. Silver was bad. Very, very bad. I couldn't allow my eyes to turn that wicked color around Katy. Ever. It would put her, not to mention every other human in the vacinity, in great danger. And I wouldn't be able to forgive myself when and if that happened.
My stomach roiled. Oh, great I thought. I retched and leaned over just in time to vomit on the cobblestone. I will never, EVER, do that again, I thought. And I had actually enjoyed that elk. Why did it have to go and turn on me like this? I coughed a little and shook my head.
Not able to stop myself, I licked my lips. The bittersweet liquid was still there. I revelled in the unique, rustic taste, even though it was the cause of my recent discomfort. It wasn't quite the same as the wholesome taste of human blood, and it left a metallic taste in my mouth, but it was pretty good. Of course, I felt like I was going to be sick again.
See, this is the sort of thing that I hate about being what I am. It's like a sick, mindless habit to drink blood. We can't stop once we start, no matter what kind of blood it is. It's even harder for me, only a halfbreed, who can be human and at the same time a worthless monster. It's quite infuriating.
Obviously I threw up again. And this time, I heard footsteps. "Oh, my God," a woman exclaimed behind me. My head was too fuzzy to tell who, but I didn't especially care. She brought a smell with her, a wonderful, spicy scent, that seemed to draw me in. My skin started tingling. No. No, you can't, I begged him. What if it's her? What if it's our Katrina? There was no point beating around the bush. I was about ninety-nine point nine percent positive that it was Katy.