All the women filed into the classroom and found a seat. in their desks, they found a vial and a note book, marked "Animal Anthro - human cow". Surprisingly, there was no teacher. Then a woman crawled out from behind the desk. She was on her hands and knees, and she was completely nude. However, the most outstanding thing about her were the enormous breasts spanning the gap between her chest and the floor. They were taut and pale, not sagging or stretching at all. Her nipples were dark, but there was milk in a trail behind her. her hips were voluptuous and her ass was cushiony.
"Hello, I am your teacher, Dr. Julia Friend, your teacher in Human cow morphing, where you will learn how to be a human cow. Now, take a seat." The five girls present immediately took a seat. "Now, let's introduce ourselves. Call out your names one by one."
"Julie" "Emily" "Beth" "Asa" "Betty". The doctor then told them to stand, and remove the vials from their desks. "this is the serum that will make your body like mine. It is permanent, so if you wish to back out, now is your last chance." Betty put down her vial and quickly left, followed swiftly by Asa. "Anyone else? No? Okay, now the vial will cause you to topple over, and will most probably rip your clothes. You may wish to remove your clothes, however, it is optional. I recommend you keep your clothes on, as it is very pleasurable. Also, because you will be on hands and knees, you will probably go around to classes nude. You will get a pass, allowing you to be late, since you have huge breasts fill with milk to carry. Also, there will be no udders as that is hard to carry around when you go to other classes and his formula has been modified to prevent it. the final thing is that due to this class, your next class choices will be limited."
Everyone nodded, and the doctor said "All right, let's drink one by one."
Julie drank first, and she gulped her vial down. She had chosen to take off her clothes, and Beth and Emily were able to watch her changes begin. Her breasts had been mere handfuls before the changes started, but as everyone watched, they began to swell. Larger and larger the grew, pulling Julie down to the ground, as mentioned by the doctor. Her breasts continued to grow, until the easily spanned the gap between her chest and the floor. Her nipples thickened, and grew slightly longer, turning a dark fertile brown. Then they seemed to distend and milk began drip. Her nipples just brushed the ground, and Julie began to shiver. her hips pushed out, becoming more curvy, and her ass seemed to wobble more all of a sudden.
"Well done! You are now a human cow Julie. Now, after your comrades finish their morphs, I will teach you how to milk yourselves, as you can tell you are very full." Julie nodded, and Emily went next, opting to keep her clothes on. She drinks the vial, and her already large breasts begin to balloon. They rip through her shirt and bra, releasing them as they keep growing larger and larger until they pull her to the ground. Then they, like Julie's, begin to leak milk, a puddle quickly forming underneath her. Her hips push outward, ripping through her panties and pants, leaving her nude as she moans from her nipples brushing the ground. Then Beth drinks, and soon, she is on the ground like Julie, Emily and Dr. Julia.
"Now, I believe it is a good time to show you how to milk yourselves." Dr. Julia reaches down to her nipples and squeezes them, releasing a spray of milk and increasing the diameter of the puddle beneath her. Then she pulls put four buckets from behind her desk. "When you milk yourself, It may be best to use a bucket as not to make a mess." then Dr. Julia hefts up her breast and began to squeeze he nipples, while pointing it into the bucket. Her face reddens, and she begins to moans. In between moans, she speaks "While . . . ha . . . you milk . . . ha. . .. yourself, intense . . . . ahahah . . . . .. pleasure will run through you, most probably causing an orgasm within . . . 30 sec . . . .ooooohhhhhhhh!" Dr. Julia screams out as her pussy begins to drip juices over the floor.
The girls then do it, emptying their breasts to a reasonable level. All of them had an orgasm and by the end of the class, there was a huge puddle of mixed pussy juices and milk on the floor.
Then the bell rang, and Dr. Julia gave them their instructions. "Next class, come to class with your breasts full. "
Then they crawled out the door, their huge breasts still leaving a trail of milk behind them.