As you stare at your reflection, a teenager's voice says 'Best get out of the way, squirt, or I'll give you a shower." You turn to see your new big brother, Brad, coming into the bathroom, pulling his red checkered boxers down. "Man, I gotta take a wicked piss." He unleashes his monster of a dick now flaccid a little too soon, splattering urine on the floor and seat, but gets the hard stream hitting inside quickly. "Oh, fuck. Gotta clean that up before mom sees."
You are still having trouble getting all this accepted. "I'm a kid!" You think this 18 year-old who used to be your little sister should at least recognize that you've lost 4 years. But he just grins. "I'm not asking you to clean up my mess, squirt. Though I've had to wash your sheets more than once. When are you gonna stop wetting the bed?"
"Huh? I haven't wet the bed since...."
He snorts. "Last night, peckerhead." Finished with his piss, he grabs a wad of toilet paper and wipes the floor and seat clean, then flushed everything down. "I gotta get ready for work."
Work? You follow your now big-brother into what had been your bedroom. It now has more sports posters and different pictures. There is a McDonald's shirt on the bed. Your brother slips it on and frowns when he sees you. "Scam, you little perv." he shuts the door, which seems sort of silly after he just took a piss in front of you.
Sighing, you go to what had been your sister's room, and find that it now has a lot of the sports posters you used to have, but some action movie stuff and figurines as well. Toys. The schoolbooks on the desk are for sixth grade, and when you check, your name is printed inside the covers. There are also pictures of you as you are now and even younger, but with kids you don't recognize. other 12 year-olds who are now your friends and classmates! What happened to Jake and Ryan?
Everything has changed to fit your new age. You wrinkle your nose. Being a kid again might not be bad, but it also means you lose a lot of freedom. Maybe you should try some more jelly beans. You can only assume they're the thing responsible for altering reality to fit your new age and your brother's. You head downstairs still in your undies and go to find the bowl is now empty.
How is this possible? Your search for the jelly beans but find a suspiciously empty trash bin to answer your questions. You can only assume someone threw away the beans.