From a Track Star to a Busty Nerd Vol. 1

Carly, a 23 y.o. college track star with an aversion to nerds, ingests drink to improve her performance. She picks the wrong product, and instead of a pro in sports, she becomes a pro in science. She not only transforms into a short, busty nerd, but starts getting the hots for the man most compatible with her new self, who would make a loving husband - her science professor...

An hourglass expansion story, with pregnancy and lactation to come in future volumes. The subject does not enjoy her new form, and wishes to restore her previous body, but she cannot resist her new urges, and her new partner feels much more towards her than just lust.