21 y.o. Samantha, sporty, tall and modestly endowed until now, undergoes a gradual yet rapid transformation into what she thought her middle-aged professor would consider the perfect woman. Her height drops, her hips widen, and the size of her breasts and buttocks increases. On top of that, she just might cause her already full breasts to become full not just in shape, by getting herself impregnated by said professor.
This story contains the full series, Vol.1 to Vol. 3 included. About 16k words.