Suddenly, swollen boobs erupt from your chest. They sag, and seem to be migrating down your torso.
"What the moooo!" you bellow.
"Oh, yeah, the cascade started. All the genetic changes have already taken place, and now they're simultaneously altering your physical appearance, dear. In the past the rearrangement of the gastro-intestinal system has been the most painful, so I suspect you'll be on the ground in pain shortly. Now I want you to know that this isn't the first time, I've done this to someone. I wanted it perfected before I did it to you. First, I perfected the bovine portion of the transformation, then I worked on the transgender. It's a lot harder to replicate your x-chromosome and delete all the y's then you might think," Andrew prattled on as he walked around you recording you with his iPhone. He was making a fucking documentary of you, and all you can do to protest is moo in agony as your insides shift impossibly.
"Well, you may ask, why this guy? Why a cow? Well, that's a story for another time. I am hear to explain how you change a red-blooded human male into a cud-chewing female cow. Observe how his manhood has shrunken, and his boobs have each sprouted two nipples as they have descended to his belly in anticipation of becoming udders. Note the clenched fists, you'd think he was getting ready to punch me, but the bones in the hands are fusing into hooves, as are his twisted feet. Now if you're wondering how I got him naked, it's rather a humourous ploy, as I invited him for a swim in the lake after using the hot tub, and gave him a swimsuit made of spun sugar. Oh, it looked like nylon to be sure, but it dissolved in water just like sugar. See the hot tub's over there. Raising the body temperature in the hot tub triggered the genetic cascade."
"Mooo!" you roar.
"Hm, it's hard to read facial expressions while the nose is becoming a muzzle, and the ears and eyes are shifting in the skull. I think he was expressing how impressed he was with my technique or calling me a "bastard" for doing it to him? Haha, well. Here's a pic of his tail emerging from his spine. Notice how he - I guess, I should call her she now has started to graze. A lot of biological energy is required for a transformation of this type, and she'll be needing to graze a lot to complete her shift from 160 lb human male into a 375 lb or bigger female cow."
Andrew clicked off the iPhone, you are swallowing mouthfuls of grass. You are starving, and need the grass badly.
"Well, dearie, I have another surprise for you, when you're done changing, I have a nice young bull who wants to mate you. Heh, heh, heh. After all we have to prime the pump as they say to get the milk flowing from your udder."
You glare with hate in your eyes, "Moo!"
"Oh, dear, is that anyway to speak to your owner? Besides when you've changed, you will be quite happy to let H-oops, I almost told you who he used to be. In any case, you are a cow now and will do what comes naturally to cows, even if your memories protest. Ain't instinct a wonderful thing? Bwahahahaha!"