Give me an extended plot of a lesbian novel about a virgin girl who is going to be turned into a human milking cow against her will when discovering the secret of a dairy farm. As the girl try to escape and threatens to reveal the secret, the owner in fear for the safety of her dearest human milkink cows, forced the girl into become one them. Elaborate the irreversible transformation with big udders grows on her pelvis, horns, tail, and stains and coat. Milkings. Throuple love. Losen virginity. Milk suckle times. Happy ending.