A strange feeling envelopes Erika's body. As she begins to grow taller as she ages to thirteen, then her body started to go through puberty; her breasts began to develop and stretch her top, her body becomes curvy and her trousers feel tight. All the while she can barely move from this strange euphoric feeling. Her continually growing breasts burst her top as she reaches 18, the same happens to her trousers but her panties are still intact (If not uncomfortably tight), finally her body reaches 25, her panties snap and she finishes transforming (or not, possibly), as a sexy, 25 year old girl with a large fluffy fox tail.