Nice story, though it would have been nicer if you included Jon and Stephen actually exiting April and Bella the next day.  There were quite a few grammatical issues; though nothing that took away from the story.

One point of confusion, you wrote April shrunk them both down to six inches, then called Jon bug sized, and both Jon and Stephen were easily swallowed, Stephen even being hid in a bowl of cereal.  Seems they were both much smaller than six inches.