After your ex-girlfriend is done growing, she makes another wish.
"I want him to be just like me!" she says, pointing at you. The Genie waves his cigar. Suddenly you feel very odd. You see your skin become covered in white fur with black splotches, like a cow. A ropey tail grows from your lower back. Your feet become hooves. Your ears stretch and become cow ears. You grow a cow's nose and muzzle on your face. You begin to puff up a bit. Your clothes pretty much disappear. Eventually you're pretty big. Then, you feel another odd sensation, this time coming from your lower body. You see your hips widen. Suddenly you see a huge pink thing balloons from between your hips. You see four teats on it. You have an udder! Your new udder swells. You moan at the feeling of your udder filling out. Soon you can't stand up. You fall down, landing on your gigantic udder. You can feel how tight your udder is. Obviously it's full of milk, and a lot at that. Soon you are the same size as your former girlfriend. Your ex-girlfriend laughs.
"Now you know what it's like to have an udder!" she exclaims. You rub your massive udder.
Now what?