"Wow. It made me an adult too." You look down your body and admire it. You really like how you look. "Well, I'm gonna have some fun with this..."
You head out to the car and decide to hit a bar. You've been too afraid of getting a fake ID and sneaking into a bar. Now no one will look twice.
You arrive at one of the older bars in the city, and take a deep breath and head inside and nervously find a seat and try to remain calm. Once you've looked around you feel a little better and grab a newspaper and before long a waitress comes and asks what you'll have. You have a couple of beers and a bin of fries, then head home.
Once home, you pull off the dress clothes and spread out on the couch in your undershirt and boxers watching some TV.

Then...you hear the front door open...and the Wishing Powder is out in the car!