Sweetie, Mommy has to go away on a business trip for the next few days, so I’ve asked my mother to come over and take care of you. I expect you to be on your best behaviour for her, understand?
Yes, I know she has some rather extreme rules even for a supporter of female superiority - insisting that men speak in baby talk at all times, not letting you wear anything to cover your diapers, making you eat nothing but baby food… But I don’t care. In fact, I think it will be good for you to go through some full baby treatment for a while.
That’s enough fussing, little boy! When she arrives in a few minutes, you’re going to greet her at the door in nothing but your diaper, say “Goo-goo ga-ga!” and give her a big kiss on the cheek. Now, you haven’t made a stinky today sweetie. I know you’ve been holding it, but I won’t punish you as long as squat down and dirty your diaper right after you’ve finished greeting my mother. You know she likes to see a boy who’s properly diaper trained. Have I made myself clear?