You are an ordinary Human Woman, you have white skin, you are not fat, nor skinny, you're of average height and your skin is tight yet elastic, you look like any ordinary Human Woman, but that is about to change very soon, you are currently naked and strapped to an operating table. When you were kidnapped and stripped naked, the evil scientists inject your anus, clitoris, labia major and minor, urethra, and vagina with something strange, your labia major and minor wither and disappear, your anus stays where it is but your clitoris moves to be behind it while your Urethra and Vagina go to it and fuse with it. Your clitoris fuses with your anal nerves and now when it is pressed it produces 2x or 4x stimulation instead of what it usually would it is now your new Gspot, when your anus fuses with your urethra and vagina the scientists do some tests and they discover that your new hole produces poop, urine and eggs, oh no your new private butthole is now a Cloaca. You cry tears that you will never be a normal human being again but with one huge asshole that produces all of the urogenital-anal products, your Anus, Urethra and Vagina have fused into a single hole called a Cloaca, you are now a Human with a Cloaca found in your butt.