Becoming Alison

In this story, a 51-year old man called Walter somehow becomes an 18-year old girl called Alison!

But how and why?

Well, that is the question, and luckily there are a lot of possibilities!

For example, Walter could be forced to fill in for his daughter Alison due to unforeseen events by using a magic spell.

Or he could be a perverted scientist who invented a transformation device and chooses to impersonate the neighbor girl Alison for some 'funtime'!

Or... Well, the pussibilities are endless ^^