While I'm not a fan of butt stuff myself, this is absolutely amazing! And the end makes me yearn for more!
and you'll get more!
I wonder if, after she shrinks him a good bit more, she'll use the opportunity to use just a little bit of the shrinking serum on herself to allow her to shrink out of her cuffs and escape with her new plaything :>
It depends on whether she wants to run away at all.
