as you stiffle through the box, a large diaper with pink pawprints all over draws your attention
"no!, it's bad enough i'm a girl, i don't wanna look like even more of a freak, an adult in a diaper?"
but you finnaly give in and think "can't get any wierder"
you unfasten the straps and slowly fasten it to you, and let your tail slide through the hole, as you finish it up it feels rather comforting.
"well, i guess it's not that bad"
as you say that you notice things around you in the room are growing!, as you look in the mirror your breasts are getting smaller by the second as you get shorter!, next thing you know is that your age 5!
"oh god!" you reach down with your paw-like hands and try to take it off, when you do you notice your about 15 months old, your muscle to fat ratio changes, and you fall flat on your rear, unable to walk, you look in the mirror as the final changes take place, your muzzle pulling inward and your teeth going in and losing sharpness, your canines left behind.
"oh-no!" you thinbk as you try yo get up but fall again.
you find that you can only crawl on your hands and knees.
any word-formation comes out as gurgles and coos
you stare in both shock and amazement as your reflection is now that of an anthropomorphic female border collie puppy!