"Well I can't stay like this" you say "I've got a bunch of real babies to look after!".
But when you try to take the ring off, you find it's stuck on your chubby finger! No matter how hard you tug, it's not coming off!
Panicking, you get the idea of removing the diapers, hoping you'll change back - but they won't come off either! They must be magically linked to the ring on your finger (which has now turned from gold to yellow plastic.)
How are you going to look after your younger siblings now they're your older siblings?