Sometimes I see people lament that they can't come up with any original ideas.  That every sizeplay story has been done already.  I don't think that's true.  But even if it is, so what?  There's nothing wrong with laying down a catchy 4/4 beat, and letting people dance.  Sometimes it's even more fun that way, when everyone knows the steps.

This is a story about a seductive, growing, muscle step-mommy.  If you know the genre, you know the buttons we're about to press.  I put my own pseudoclever spin on it, and maybe that makes it unique.  I'll leave that up to interpretation.  

Comments welcome and encouraged.  They help motivate me to write the next piece.  Criticism, less welcome.  Put them in DM's if you must, but this story is what it is.  I had fun writing it.  And, surprising myself, I'm proud of it.

Btw, just to head it off, canonical ages in order of character appearance are:

Megan: 42
John: 22
Willow: 19
Brianna: 23

Above-the-fold Tags: Step-relation sexy stuff, milk, female growth, penis growth, male shrinking, muscle growth, breast growth, beautification, seduction, humiliation, sizes from 3ft to 10ft, NSFW

Spoiler Tags: Girl growing a cock, minor male growth, insertion, mega and giga sizes