Faye discovers her step-son, shrunken and in a pair of her discarded panties on her bedroom floor. Realising that he’s been masturbating, she humiliates and degrades him for being so naughty.
Shrinking himself just to perv is externally dangerous, he could have been crushed under his own step-moms feet if she hadn’t seen him.
Although talking about how step-mom’s feet could have squashed him, is for some reason getting him hard. Maybe he should jerk off to his giant step-mom’s feet to get it out of his system.

He ends up in a jar, as he’s going to be step-mom's pet now.
Although on her return home later she decides he needs to do more to earn his keep and he soon gets fed to step-mommy’s pussy.
Despite making her cum, he’s not looking in a good way so Faye decides he’s going to make a great snack for step-mommy’s tummy. Time to get back inside step-mommy, until of course his bones end up in the toilet after her nap.